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1. Abstracts from the Food Allergy and Anaphylaxis Meeting 2016

Author

Guillaume Pouessel, Claire Claverie, Julien Labreuche, Jean-Marie Renaudin, Aimée Dorkenoo, Mireille Eb, Anne Moneret-Vautrin, Antoine Deschildre, Stephane Leteurtre, Linus Grabenhenrich, Margitta Worm, Sabine Dölle, Kathrin Scherer, Isidor Hutteger, Morten Christensen, Carsten Bindslev-Jensen, Charlotte Mortz, Esben Eller, Henrik Fomsgaard Kjaer, Leonor Carneiro-Leão, Jenny Badas, Alice Coimbra, Dikla Pivko Levy, Moshe Ben-Shoshan, Ayelet Rimon, Shira Benor, Nicolette J. T. Arends, Nikki Edelbroek, Hans de Groot, Joyce A. M. Emons, H. Kim A. Brand, Dirk Verhoeven, Leonieke N. van Veen, Nicolette W. de Jong, Geunwoong Noh, Eun Ha Jang, Mariona Pascal, Olga Dominguez, Mònica Piquer, Montserrat Alvaro, Rosa Jimenez-Feijoo, Jaime Lozano, Adriana Machinena, Maria del Mar Folqué, Maria Teresa Giner, Ana María Plaza, Paul Turner, Nandinee Patel, Marta Vazquez-Ortiz, Sarah Lindsley, Lucy Walker, Simon Rosenberg, Adriano Mari, Claudia Alessandri, Ivana Giangrieco, Lisa Tuppo, Chiara Rafaiani, Georg Mitterer, Michela Ciancamerla, Rosetta Ferrara, Maria Livia Bernardi, Danila Zennaro, Maurizio Tamburrini, Maria Antonetta Ciardiello, Christian Harwanegg, Antonio Fernandez, Regina Selb, Philippe Egenmann, Michelle Epstein, Karin Hoffmann-Sommergruber, Frits Koning, Martinus Lovik, E. N. Clare Mills, Javier Moreno, Henk van Loveren, Jean-Michel Wal, Susanne Diesner, Cornelia Bergmayr, Barbara Pfitzner, Vera Elisabeth Assmann, Philipp Starkl, David Endesfelder, Thomas Eiwegger, Zsolt Szepfalusi, Heinz Fehrenbach, Erika Jensen-Jarolim, Anton Hartmann, Isabella Pali-Schöll, Eva Untersmayr, Soren Wille, Peter Meyer, Caroline Klingebiel, Jonas Lidholm, Angelica Ehrenberg, Jonas Östling, Isabelle Cleach, Jean-Louis Mège, Joana Vitte, Roberta Aina, Pawel Dubiela, Sabine Pfeifer, Merima Bublin, Christian Radauer, Piotr Humeniuk, Stefan Kabasser, Riccardo Asero, Gador Bogas, Francisca Gomez, Paloma Campo, Maria Salas, Inmaculada Doña, Esther Barrionuevo, Maria Auxiliadora Guerrero, Cristobalina Mayorga, Ana Prieto, Domingo Barber, Maria Jose Torres, Annette Jamin, Andrea Wangorsch, Barbara Ballmer, Stefan Vieths, Stephan Scheurer, Danijela Apostolovic, Jelena Mihailovic, Maja Krstic, Maria Starkhammar, Tanja Cirkovic Velickovic, Carl Hamsten, Marianne van Hage, Francine C. van Erp, Edward F. Knol, Hannah M. Kansen, Bo Pontoppidan, Yolanda Meijer, Cornelis K. van der Ent, André C. Knulst, Rebekah Sayers, Helen Brown, Adnan Custovic, Angela Simpson, Claire Mills, Juliane Schulz, Network for Online Registration of Anaphylaxis (NORA), Jaap Akkerdaas, Muriel Totis, Annabelle Capt, Corinne Herouet-Guicheney, Ronald van Ree, Tushar Banerjee, Antima Banerjee, Mathilde Claude, Grégory Bouchaud, Roberta Lupi, Laure Castan, Olivier Tranquet, Sandra Denery-Papini, Marie Bodinier, Chantal Brossard, Rosella De Poi, Elisa Gritti, Emiliano De Dominicis, Bert Popping, Patrizia Polverino de Laureto, Kati Palosuo, Anna Kaarina Kukkonen, Anna Pelkonen, Mika Mäkelä, Nanju Alice Lee, Johanna Rost, Sridevi Muralidharan, Dianne Campbell, Sam Mehr, Catherine Nock, Joseph Baumert, Steve Taylor, Carla Mastrorilli, Salvatore Tripodi, Carlo Caffarelli, Serena Perna, Andrea Di Rienzo Businco, Ifigenia Sfika, Arianna Dondi, Annamaria Bianchi, Carlotta Povesi Dascola, Giampaolo Ricci, Francesca Cipriani, Nunzia Maiello, Michele Miraglia del Giudice, Tullio Frediani, Simone Frediani, Francesco Macrì, Chiara Pistoletti, Iride Dello Iacono, Maria Francesca Patria, Elena Varin, Diego Peroni, Pasquale Comberiati, Loredana Chini, Viviana Moschese, Sandra Lucarelli, Roberto Bernardini, Giuseppe Pingitore, Umberto Pelosi, Roberta Olcese, Matteo Moretti, Anastasia Cirisano, Diego Faggian, Alessandro Travaglini, Mario Plebani, Maria Carmen Verga, Mauro Calvani, Paolo Giordani, Paolo Maria Matricardi, Noe Ontiveros, Francisco Cabrera-Chavez, Julie Galand, Etienne Beaudouin, The Anaphylaxis Working Group of the French Allergology SocietyThe Anaphylaxis Working Group of the French Allergology Society, Florence Pineau, Shinobu Sakai, Kayoko Matsunaga, Reiko Teshima, Colette Larré, Sandra Denery, Sebastian Tschirner, Valérie Trendelenburg, Gabriele Schulz, Bodo Niggemann, Kirsten Beyer, Youcef Bouferkas, Younes Belabbas, Djamel Saidi, Omar Kheroua, Kamel Eddine El Mecherfi, Malika Guendouz, Abir Haddi, Hanane Kaddouri, Luis Amaral, Ana Pereira, Susana Rodrigues, Mareen Datema, Laurian Jongejan, Michael Clausen, Andre Knulst, Nikolaos Papadopoulos, Marek Kowalski, Frédéric de Blay, Aeilko Zwinderman, Karin Hoffman-Sommergruber, Barbara Ballmer-Weber, Montserrat Fernandez-Rivas, Shan Deng, Jia Yin, Charlotte Eisenmann, Maria Nassiri, Rabea Reinert, Johanna P. M. van der Valk, Roy Gerth van Wijk, Yvonne Vergouwe, Ewout W. Steyerberg, Marit Reitsma, Harry J. Wichers, Huub F. J. Savelkoul, Berber Vlieg-Boerstra, Anthony E. J. Dubois, Fabrícia Carolino, Ana Rodolfo, Josefina Cernadas, Dasha Roa-Medellín, Ana Rodriguez-Fernandez, Joaquín Navarro, Vicente Albendiz, María Luisa Baeza, Sonsoles Intente-Herrero, Andrea Mikkelsen, Kirsten Mehlig, Lauren Lissner, Linda Verrill, Stefano Luccioli, Jolanda van Bilsen, Frieke Kuper, André Wolterbeek, Tanja Rouhani Rankouhi, Lars Verschuren, Hilde Cnossen, Prescilla Jeurink, Johan Garssen, Léon Knippels, Jossie Garthoff, Geert Houben, Winfried Leeman, M. Eleonore Pettersson, Afke M. M. Schins, Gerard H. Koppelman, Boudewjin J. Kollen, Svitlana Zubchenko, Sarah Kuntz, Pablo Mérida, Montserrat Álvaro, Monica Piquer, Carmen Riggioni, Juan Heber Castellanos, Rosa Jimenez, Melanie Cap, Elodie Drumez, Stéphanie Lejeune, Caroline Thumerelle, Clémence Mordacq, Véronique Nève, Sonia Ricò, Margherita Varini, Rita Nocerino, Linda Cosenza, Antonio Amoroso, Margherita Di Costanzo, Carmen Di Scala, Giorgio Bedogni, Roberto Berni Canani, Paul J. Turner, Paloma Poza-Guedes, Ruperto González-Pérez, Inmaculada Sánchez-Machín, Victor Matheu-Delgado, Erik Wambre, Anne-Sofie Ballegaard, Charlotte Madsen, Juliane Gregersen, Katrine Lindholm Bøgh, Philippe Aubert, Michel Neunlist, Antoine Magnan, Daniel Lozano-Ojalvo, Alba Pablos-Tanarro, Leticia Pérez-Rodríguez, Elena Molina, Rosina López-Fandiño, Akila Rekima, Patricia Macchiaverni, Mathilde Turfkruyer, Sebastien Holvoet, Lénaïck Dupuis, Nour Baiz, Isabella Annesi-Maesano, Annick Mercenier, Sophie Nutten, Valérie Verhasselt, Ines Mrakovcic-Sutic, Srdan Banac, Ivana Sutic, Zdenka Baricev-Novakovic, Ingrid Sutic, Valentino Pavisic, Rosa Muñoz-Cano, Teodoríkez Jiménez-Rodríguez, Daniel Corbacho, Jordi Roca-Ferrer, Joan Bartra, Aleksandar Bulog, Vladimir Micovic, Lidia Markiewicz, Agata Szymkiewicz, Anna Szyc, Barbara Wróblewska, Bryan M. Harvey, Lucien F. Harthoorn, A. Wesley Burks, Georgios Rentzos, Anna-Lena Bramstång Björk, Ulf Bengtsson, Colin Barber, Chrystyna Kalicinsky, Christine Breynaert, Lieve Coorevits, Cornelia Jansen, Erna Van Hoeyveld, Kristin Verbeke, Anne-Marie Kochuyt, Rik Schrijvers, Diana Deleanu, Adriana Muntean, Maria Konstantakopoulou, Maria Pasioti, Anastasia Papadopoulou, Anna Iliopoulou, Nikolaos Mikos, Evangelia Kompoti, Eunice Dias de Castro, Borja Bartalomé, Kok Loong Ue, Elizabeth Griffiths, Stephen Till, Kate Grimshaw, Graham Roberts, Anna Selby, Indre Butiene, Jose Ignacio Larco, Ruta Dubakiene, Ana Fiandor, Alessandro Fiocchi, Nikos Papadopoulos, Sigurveig Sigurdardottir, Aline Sprikkelman, Anne-Fleur Schoemaker, Paraskevi Xepapadaki, Thomas Keil, Zizi Cojocariu, Beatriz Secades Barbado, Vasti Iancu, Esozia Arroabarren, Marta Goñi Esarte, Miren Arteaga, Mayra Coutinho Andrade, Denise Borges, Jorge Kalil, Pedro Giavina Bianchi, Rosana Camara Agondi, Rinkesh Kumar Gupta, Akanksha Sharma, Kriti Gupta, Mukul Das, Premendra Dwivedi, Rusudan Karseladze, Liana Jorjoliani, Lali Saginadze, Mariam Tskhakaia, Katia Basello, Gabriele Piuri, Attilio Francesco Speciani, Michela Carola Speciani, Carla Camerotto, Francesco Zinno, Olga Pakholchuk, Svitlana Nedelska, Stefano Pattini, Maria Teresa Costantino, Silvia Peveri, Danilo Villalta, Eleonora Savi, Andrea Costanzi, Vera A. Revyakina, Marina A. Kiseleva, Elena D. Kuvshinova, Inna A. Larkova, Anton A. Shekhetov, Diana Silva, André Moreira, José Plácido, Hanneke van der Kleij, Esther van Twuijver, Robbert Sutorius, Pieter-Jan de Kam, Jenny van Odijk, Helen Lindqvist, Elin Lustig, Amyra Ali Azamar Jácome, Karla Leversia Borjas Aguilar, Miguel García Domínguez, David Alejandro Mendoza Hernández, Cristiano Caruso, Cono Casale, Gian Lodovico Rapaccini, Antonino Romano, Italo De Vitis, Renata R. Cocco, Carolina Aranda, Marcia C. Mallozi, Jackeline F. Motta, Lilian Moraes, Antonio Pastorino, Nelson Rosario, Ekaterini Goudouris, Arnaldo Porto, Neusa F. Wandalsen, Emanuel Sarinho, Flavio Sano, Dirceu Solé, Constantinos Pitsios, Maria Petrodimopoulou, Ekaterini Papadopoulou, Maria Passioti, Meropi Kontogianni, Nino Adamia, Ekaterina Khaleva, Ana Prieto del Prado, George Du Toit, Edyta Krzych, Urszula Samolinska-Zawisza, Konrad Furmanczyk, Aneta Tomaszewska, Filip Raciborski, Agnieszka Lipiec, Piotr Samel-Kowalik, Artur Walkiewicz, Jacek Borowicz, Boleslaw Samolinski, Aimee Lou Nano, Marysia Recto, Maria Luisa Somoza, Natalia Blanca López, Diana Pérez Alzate, Francisco Javier Ruano, Maria Isabel Garcimartín, Elisa Haroun, Maria Vázquez de la Torre, Antonia Rojas, Montserrat López Onieva, Gabriela Canto, Alexandra Rodrigues, Andreia Forno, António Jorge Cabral, Rute Gonçalves, Ilya Vorozhko, Tatyana Sentsova, Olga Chernyak, Svetlana Denisova, Lidia Ilènko, Valery Muhortnich, Caroline Zimmermann, Alexander Rohrbach, Faisal R. Bakhsh, Kollen Boudewijn, Anne-Marie Oomkes-Pilon, Dorien Van Ginkle, Mira Šilar, Anja Jeverica, Tina Vesel, Tadej Avčin, Peter Korošec, Johanna van der Valk, Irene Berends, Nicolette Arends, Maurits van Maaren, Harry Wichers, Joyce Emons, Anthony Dubois, Nicolette de Jong, Oksana Matsyura, Lesya Besh, Chung-Hsiung Huang, Tong-Rong Jan, Gary Stiefel, Jean Tratt, Kerrie Kirk, Fabricia Carolino, Stefania Arasi, Lucia Caminiti, Giuseppe Crisafulli, Chiara Fiamingo, Jlenia Fresta, Giovanni Pajno, Ben Remington, Astrid Kruizinga, W. Marty Blom, Joost Westerhout, Sabina Bijlsma, Joe Baumert, Mark Blankestijn, Henny Otten, Rob Klemans, Anouska D. Michelsen-Huisman, Harmieke van Os-Medendorp, Astrid G. Kruizinga, Astrid Versluis, Gert van Duijn, H. Mary-Lene de Zeeuw-Brouwer, Jacqueline J. M. Castenmiller, Hub P. J. M. Noteborn, Geert F. Houben, Kristian Bravin, David Luyt, Bushra Javed, Phil Couch, Christopher Munro, Phil Padfield, Matt Sperrin, Aideen Byrne, Lizalet Oosthuizen, Carina Kelleher, Fiona Ward, Niamh Brosnan, Graham King, Eva Corbet, Josué Alejandro Huertas Guzmán, Montserrat Bosque García, Oscar Asensio, Laura Valdesoiro Navarrete, Helena Larramona, Xavier Domingo Miró, Katarzyna Pyrz, Moira Austin, Yanne Boloh, Philip Couch, Deirdre Galloway, Pilar Hernandez, Jonathan O’B. Hourihane, Fiona Kenna, Barbara Majkowska-Wojciechowska, Lynne Regent, Marina Themisb, Sabine Schnadt, Aida Semic-Jusufagic, Audrey Dunn Galvin, Tiina Kauppila, Mikael Kuitunen, Nikolaos A. Kitsioulis, Nikolaos Douladiris, Sofia Kostoudi, Ioanna Manolaraki, Dimitris Mitsias, Emmanouil Manousakis, Nikolaos G. Papadopoulos, Rebecca Knibb, Jennifer Hammond, Richard Cooke, Jaakko Yrjänä, Anna-Maija Hanni, Päivi Vähäsarja, Oona Mustonen, Teija Dunder, Petri Kulmala, Eva Lasa, Carmen D’Amelio, Sara Martínez, Alejandro Joral, Gabriel Gastaminza, Maria Jose Goikoetxea, David C. A. Candy, Marleen T. J. Van Ampting, Manon M. Oude Nijhuis, Assad M. Butt, Diego G. Peroni, Adam T. Fox, Jan Knol, Louise J. Michaelis, Ines Padua, Patricia Padrao, Pedro Moreira, Renata Barros, Hanan Sharif, Manzoor Ahmed, Nehad Gomaa, Joris Mens, Koen Smit, Frans Timmermans, Tomaž Poredoš, Anja Koren Jeverica, Marjeta Sedmak, Evgen Benedik, Meta Accetto, Mirjana Zupančič, Glauce Yonamine, Gustavo Soldateli, Bruna Aquilante, Antonio Carlos Pastorino, Cleonir Lui de Moraes Beck, Andrea Keiko Gushken, Mayra de Barros Dorna, Cristiane Nunes dos Santos, Ana Paula Moschione Castro, Abdulhadi Al-Qahtani, Rand Arnaout, Agha Rehan Khaliq, Rashid Amin, Farrukh Sheikh, Jorge Alvarez, Marta Anda, Miriam Palacios, Montserrat De Prada, Carmen Ponce, Bianca Balbino, Riccardo Sibilano, Thomas Marichal, Nicolas Gaudenzio, Hajime Karasuyama, Pierre Bruhns, Mindy Tsai, Laurent L. Reber, Stephen J. Galli, Ana Reis Ferreira, Josefina R. Cernadas, Aida del Campo García, Sara Pereiro Fernández, Nerea Sarmiento Carrera, Fernando Bandrés Sánchez-Cruz, José Ramón Fernández Lorenzo, Stephanie Claus, Claudia Pföhler, Franziska Ruëff, Regina Treudler, Mercedes Escarrer Jaume, Agustin Madroñero, Maria Teresa Guerra Perez, Juan Carlos Julia, Charlotte Hands Plovdiv, Lee Gethings, Jim Langridge, Karine Adel-Patient, Hervé Bernard, Ivona Barcievic-Jones, Raditsa Sokolova, Rumyana Yankova, Mariya Ivanovska, Marianna Murdjeva, Tatyana Popova, Svetlan Dermendzhiev, Martin Karjalainen, Ulrike Lehnigk, Duncan Brown, Julie C. Locklear, Julie Locklear, Ioana Maris, Jonathan Hourihane, Cristina Ornelas, Joana Caiado, Manuel Branco Ferreira, Manuel Pereira-Barbosa, Yolanda Puente, Juan Carlos Daza, Francisco Javier Monteseirin, Natalia Ukleja-Sokolowska, Ewa Gawronska-Ukleja, Magdalena Zbikowska-Gotz, Zbigniew Bartuzi, Lukasz Sokolowski, Aine Adams, Bernard Mahon, Karen English, Nelly Gourdon-Dubois, Laetitia Sellam, Bruno Pereira, Elodie Michaud, Khaled Messaoudi, Bertrand Evrard, Jean-Luc Fauquert, Francisca Palomares, Gador Gomez, Maria Jose Rodriguez, Luisa Galindo, Ana Molina, Lorella Paparo, Maurizio Mennini, Rosita Aitoro, Adam Wawrzeńczyk, Michał Przybyszewski, Anna Wawrzeńczyk, Hulya Ercan Sarıcoban, Meltem Ugras, Zerrin Yalvac, Bertine M. J. Flokstra-de Blok, J. L. van der Velde, Andrea Vereda, Clara Ippolito, Amaranta Traversa, Daniela Adriano, Daniela Manila Bianchi, Silvia Gallina, Lucia Decastelli, Melina Makatsori, Anne Miles, Sonja Posega Devetak, Iztok Devetak, Soraya Ainad Tabet, Jeanette Fisker Trandbohus, Pernille Winther, Hans-Jørgen Malling, Kirsten Skamstrup Hansen, Lene Heise Garvey, Chia-Chi Wang, Yin-Hua Cheng, Chun-Wei Tung, Mariola Dietrich, Ingo Marenholz, Birgit Kalb, Sarah Grosche, Katharina Blümchen, Rupert Schlags, Mareike Price, Sylke Rietz, Jorge Esparza-Gordillo, Susanne Lau, Young-Ae Lee, Ali Almontasheri, Mohammad Al Bahkali, Sahar Elshorbagi, Abdullah Alfhaid, Mashary Altamimi, Eman Madbouly, Hassan Al-Dhekri, Rand K. Arnaout, Maria Basagaña, Sira Miquel, Borja Bartolomé, Bettina Brix, Stefanie Rohwer, Sandra Brandhoff, Alena Berger, Waltraud Suer, Alf Weimann, Cristina Bueno, Laura Martín-Pedraza, Sara Abián, Pablo San Segundo-Acosta, Juan Carlos López-Rodríguez, Rodrigo Barderas, Eva Batanero, Javier Cuesta-Herranz, María Teresa Villalba, Magna Correia, Filipe Benito-Garcia, Cristina Arêde, Susana Piedade, Mário Morais-Almeida, James Hindley, Ross Yarham, Anna Kuklinska-Pijanka, David Gillick, Karine Patient, Martin D. Chapman, Katrine L. Bøgh, Ana Miranda, Eugénia Matos, Anna Sokolova, Huan Rao, Ivona Baricevic-Jones, Frances Smith, Wentong Xue, Helga Magnusdottir, Anna G. Vidarsdottir, Sigrun Lund, Anders Blom Jensen, Bjorn R. Ludviksson, Reyna Simon, Robert Elfont, Sean Bennett, Robert Voyksner, Maria de Lurdes Torre, Songül Yürek, Margaretha A. Faber, Annick Bastiaensen, Evelyne Mangodt, Athina van Gasse, Ine Decuyper, Vito Sabato, Margo M. Hagendorens, Chris H. Bridts, Luc S. De Clerck, Didier Ebo, Susanne Schwarz, Mandy Ziegert, Saskia Albroscheit, Christian Schwager, Skadi Kull, Jochen Behrends, Niels Röckendorf, Frauke Schocker, Andreas Frey, Arne Homann, Wolf-Meinhard Becker, Uta Jappe, Nesrine Zaabat, Sylvia Osscini, Chantal Agabriel, Benoît Sterling, Ania Carsin, Valérie Liabeuf, Monica Maćków, Alina Zbróg, Monica Bronkowska, Justine Courtois, Romy Gadisseur, Catherine Bertholet, Pierre Lukas, Etienne Cavalier, Philippe Delahaut, Birgit Quinting, Margareta Brandt Gertmo, Ewa Ternesten Hasseus, Vladyslava Barzylovych, Júlio Oliveira, Luis F. Ensina, Carolina S. Aranda, Leire Dopazo, Rebeca Lopez, Raquel Perez, Laura Santos-Diez, Agurtzane Bilbao, Juan Miguel Garcia, Ignacio García Núñez, María Ángeles Algaba Mármol, María José Barasona Villarejo, José Antonio Bácter Martos, Marina Suárez Vergara, José María Ignacio García, Agata Michalska, Grzegorz Sergiejko, Robert Zacniewski, Ileana-Maria Ghiordanescu, Cristina Deaconu, Mihaela Popescu, Roxana Silvia Bumbacea, Alkerta Ibranji, Elida Nikolla, Gjustina Loloci, Nanna Juel-Berg, Lau Fabricius Larsen, Lars Kjaergaard Poulsen, João Marcelino, Ricardo Prata, Ana Célia Costa, Fátima Duarte, Marta Neto, Jennifer Santos, Luís Câmara Pestana, Daniel Sampaio, Paola Minale, Paola Dignetti, Donatella Bignardi, Irena Nedelea, Florin-Dan Popescu, Mariana Vieru, Florin-Adrian Secureanu, Carmen Saviana Ganea, Miguel Vieira, José Pedro Moreira Silva, Timothy Watts, Sophia Watts, Marta Lomikovska, Marina Peredelskaya, Natalia Nenasheva, Ivana Filipovic, Zorica Zivkovic, Djordje Filipovic, Jennette Higgs, Amena Warner, and Carla Jones

Subjects
Immunologic diseases. Allergy, RC581-607
Published
2017
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2. Understanding the Significance and Implications of Antibody Numbering and Antigen-Binding Surface/Residue Definition

Author

Mathieu Dondelinger, Patrice Filée, Eric Sauvage, Birgit Quinting, Serge Muyldermans, Moreno Galleni, and Marylène S. Vandevenne

Subjects
numbering scheme, complementary determining regions, antibody humanization, antigen binding residue, antibody engineering, Immunologic diseases. Allergy, RC581-607
Abstract

Monoclonal antibodies are playing an increasing role in both human and animal health. Different strategies of protein and chemical engineering, including humanization techniques of non-human antibodies were applied successfully to optimize clinical performances of antibodies. Despite the emergence of techniques allowing the development of fully human antibodies such as transgenic Xeno-mice, antibody humanization remains a standard procedure for therapeutic antibodies. An important prerequisite for antibody humanization requires standardized numbering methods to define precisely complementary determining regions (CDR), frameworks and residues from the light and heavy chains that affect the binding affinity and/or specificity of the antibody-antigen interaction. The recently generated deep-sequencing data and the increasing number of solved three-dimensional structures of antibodies from human and non-human origins have led to the emergence of numerous databases. However, these different databases use different numbering conventions and CDR definitions. In addition, the large fluctuation of the variable chain lengths, especially in CDR3 of heavy chains (CDRH3), hardly complicates the comparison and analysis of antibody sequences and the identification of the antigen binding residues. This review compares and discusses the different numbering schemes and “CDR” definition that were established up to date. Furthermore, it summarizes concepts and strategies used for numbering residues of antibodies and CDR residues identification. Finally, it discusses the importance of specific sets of residues in the binding affinity and/or specificity of immunoglobulins.

Published
2018
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3. Soutenir le développement professionnel des enseignants en haute école par la recherche : analyse d’un dispositif d’appel à projets interne

Author

Sandrine Biémar, Birgit Quinting, and Isabelle Bragard

Subjects
développement professionnel, apprentissage, accompagnement, SoTL, projet de recherche, identité, Education, Special aspects of education, LC8-6691
Abstract

The 2013 decree defining the missions of higher education institutions in the Wallonia-Brussels Federation of Belgium identified applied research as a full-fledged mission of the university college. However, the professional project of teachers who evolve in university college is initially guided by teaching. In order to align its teaching staff with this new mission, one university of applied sciences has set up a call for internal projects. The study presented in this article takes as its object the novel professional development of teachers involved in research projects. With a view to the continuous improvement of the call process, its comprehensive and exploratory aim is to document the process of identity construction in which these teacher-researchers are involved, to identify the learning achieved as well as the facilitators and obstacles perceived. Finally, 51 teachers were interviewed by means of an individual online questionnaire. The data were analysed with a qualitative method. The results indicate, among other things, that the desire to do research is linked to the desire to improve and inform one's teaching practices. In this respect, the Scholaship of Teaching and learning approach (Brew, 2010) could shed light on the specificity of the professional development process in HE. The main obstacle remains the time allocated to the research project, which is both too short and difficult to combine with the time allocated to teaching. Levers are identified in the collective dynamics within and between project teams as well as in the institutional support that is necessary.

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4. Abstracts from the Food Allergy and Anaphylaxis Meeting 2016

Author

Georgios Rentzos, Esben Eller, Annick Mercenier, Magna Correia, Pedro Moreira, Linda Verrill, Mário Morais-Almeida, Frauke Schocker, Carsten Bindslev-Jensen, Ulrike Lehnigk, Andreas Frey, Lars Verschuren, Anna-Lena Bramstång Björk, Lene Heise Garvey, Elena Molina, Katrine L. Bøgh, J. L. van der Velde, Montserrat Alvaro, Phil Padfield, Niamh Brosnan, Nelly Gourdon-Dubois, Christian Harwanegg, Manuel Branco Ferreira, Songül Yürek, Amyra Ali Azamar Jácome, Rashid Amin, José Ramón Fernández Lorenzo, Kirsten Beyer, Florin-Adrian Secureanu, Charlotte Bernhard Madsen, Julie Galand, Claudia Pföhler, Rabea Reinert, Heinz Fehrenbach, Anton Hartmann, Maria Salas, Arne Homann, Rand Arnaout, Sarah Lindsley, Nerea Sarmiento Carrera, Patrícia Padrão, Berber Vlieg-Boerstra, Alkerta Ibranji, Benoît Sterling, Maria Auxiliadora Guerrero, Maria L. Baeza, Maurizio Tamburrini, Eva Untersmayr, Tanja Cirkovic Velickovic, Farrukh Sheikh, Sarah Kuntz, Sara Martínez, Kriti Gupta, Maria de Lurdes Torre, Yvonne Vergouwe, Ross Yarham, Faisal R. Bakhsh, Marta Vazquez-Ortiz, João Marcelino, Tullio Frediani, Ricardo Prata, Anna Kaarina Kukkonen, Gustavo Soldateli, Ines Mrakovčić-Šutić, Elodie Drumez, Cristina Ornelas, Maria Vazquez de La Torre, Renata Barros, Agata Szymkiewicz, Aneta Tomaszewska, Stefanie Rohwer, Charlotte Eisenmann, Adriana Muntean, Matteo Moretti, Johanna P. M. van der Valk, Birgit Quinting, Stefan Kabasser, David Gillick, Michał Przybyszewski, Grzegorz Sergiejko, Antonio Jorge Cabral, Alba Pablos-Tanarro, Robert Elfont, Marit Reitsma, Roxana Silvia Bumbăcea, Nelson Rosario, Maria Livia Bernardi, Cristiane N. Santos, Christian Radauer, Sandra Denery-Papini, Geert F. Houben, Nicolette W. de Jong, Marta Anda, Alexander Rohrbach, Teodorikez Wilfox Jimenez-Rodriguez, María Teresa Villalba, Karine Patient, Harmieke van Os-Medendorp, Kathrin Scherer, Marta Goñi Esarte, Svetlan Dermendzhiev, Jossie Garthoff, Michelle M. Epstein, Catherine Bertholet, Bruna Pultrini Aquilante, Didier G. Ebo, Roberta Aina, Jorge Kalil, Petri Kulmala, Lars K. Poulsen, Barbara Ballmer, H. Mary-Lene de Zeeuw-Brouwer, Karin Hoffman-Sommergruber, Winfried Leeman, Anne Miles, Nehad Gomaa, Maria Teresa Costantino, Evelyne Mangodt, Maria Konstantakopoulou, Rosa Jimenez, Attilio Francesco Speciani, Helga Magnusdottir, Inmaculada Sánchez-Machín, H. Kaddouri, Raquel Perez, Astrid Versluis, Anthony E. J. Dubois, Anja Koren Jeverica, Zdenka Barićev-Novaković, Joost Westerhout, A.M. Plaza, Júlio Oliveira, Pierre Lukas, Oksana Matsyura, Giuseppe Pingitore, Mira Silar, Huub F. J. Savelkoul, Urszula Samolinska-Zawisza, Chantal Brossard, Ana Reis Ferreira, Reiko Teshima, Serena Perna, Mariola Dietrich, Dirk Verhoeven, Fiona Kenna, Paloma Poza-Guedes, Cristobalina Mayorga, Pilar Hernandez, Roberto Bernardini, Roberto Berni Canani, Maria Francesca Patria, Mariana Vieru, Julie Locklear, Esther van Twuijver, Marina A. Kiseleva, H. Kim A. Brand, Gabriele Schulz, Ileana-Maria Ghiordanescu, Nikolaos G. Papadopoulos, Danijela Apostolovic, Maria del Mar Folqué, Eva Lasa, Mohammad Al Bahkali, Arianna Dondi, Sofia Kostoudi, Simon Rosenberg, Véronique Nève, Rumyana Yankova, Barbara Ballmer-Weber, Maria Jose Goikoetxea, María José Barasona Villarejo, Teija Dunder, Tina Vesel, Elisa Gritti, Marianne van Hage, Laure Castan, Etienne Beaudouin, Margherita Di Costanzo, Natalia Ukleja-Sokołowska, Matthew Sperrin, Paul Turner, Saskia Albroscheit, Rebeca Lopez, Sonja Posega Devetak, Francisca Palomares, Laetitia Sellam, Jennifer Hammond, Astrid G. Kruizinga, Konrad Furmanczyk, Patricia Macchiaverni, Olga Pakholchuk, I V Vorozhko, Ania Carsin, Aleksandar Bulog, Joris Mens, Bianca Balbino, James P. Hindley, Jaap H. Akkerdaas, Jonathan Hourihane, Hilde Cnossen, Tatyana A Popova, Rupert Schlags, Natalia Nenasheva, A. Ehrenberg, Sigurveig T. Sigurdardottir, Anna Iliopoulou, Clara Ippolito, Piotr Samel-Kowalik, Paloma Campo, Gador Bogas, Constantinos Pitsios, Sarah Grosche, Karla Leversia Borjas Aguilar, Amena Warner, Birgit Kalb, Lénaïck Dupuis, Harry J. Wichers, Diana Silva, Gabriele Piuri, Linus Grabenhenrich, Emanuel Sarinho, M. Eleonore Pettersson, Rodrigo Barderas, Gary Stiefel, E. N. Clare Mills, Lali Saginadze, Ruta Dubakiene, Francesca Cipriani, Mindy Tsai, Marina Themisb, Michela Ciancamerla, Rebecca Knibb, Ruperto González-Pérez, Marina Peredelskaya, André C. Knulst, Irene Berends, S N Denisova, Montserrat Fernandez-Rivas, Paolo Maria Matricardi, Daniel Sampaio, Giorgio Bedogni, Sira Miquel, Koen Smit, Stefania Arasi, Sylvia Osscini, Justine Courtois, Cristina Deaconu, Srdan Banac, Kirsten Hansen, Jennette Higgs, Charlotte Hands Plovdiv, Carlotta Povesi Dascola, Noe Ontiveros, Rik Schrijvers, Carla Mastrorilli, Maria Passioti, Sebastian Tschirner, Bjorn R. Ludviksson, Joana Caiado, Daniel Corbacho, Sophie Nutten, Agustin Madroñero, Marina Suárez Vergara, Boudewjin J. Kollen, Catherine J Nock, Johanna Rost, Agnieszka Lipiec, Skadi Kull, Geert Houben, Carlo Caffarelli, Jordi Roca-Ferrer, Bolesław Samoliński, Isabelle Cleach, Colette Larré, Aideen Byrne, Corinne Herouet-Guicheney, Jonas Lidholm, Vera Assmann, W. Marty Blom, Adriano Mari, Adam T. Fox, Giuseppe Crisafulli, Afke M. M. Schins, Anastasia Papadopoulou, Flávio Sano, Richard Cooke, Franziska Ruëff, L Jorjoliani, Rebekah Sayers, Anne-Marie Kochuyt, Borja Bartalomé, Anne Moneret-Vautrin, Juan Carlos Julia, Jelena Mihailovic, Katarzyna Pyrz, Kollen Boudewijn, Margherita Varini, Paolo Giordani, Claudia Alessandri, Johanna van der Valk, Antoine Deschildre, Mariam Tskhakaia, Rosina López-Fandiño, Omar Kheroua, Nicolette J. T. Arends, Alina Zbróg, Chung-Hsiung Huang, Andrea Wangorsch, Ulf Bengtsson, Jim Langridge, Dasha Roa-Medellín, Jose Ignacio Larco, Bert Popping, Ana Prieto del Prado, José Antonio Bácter Martos, Rita Nocerino, Sophia Watts, Elisa Haroun, Danilo Villalta, Lee A. Gethings, María Ángeles Algaba Mármol, Ewa Gawrońska-Ukleja, Cornelia Jansen, André Moreira, V A Revyakina, Robert Zacniewski, Xavier Domingo Miró, Francesco Macrì, Mayra de Barros Dorna, Akanksha Sharma, Stephen J. Till, Ali Almontasheri, Chrystyna Kalicinsky, Robbert Sutorius, Akila Rekima, Mark A. Blankestijn, Nicolette Arends, Chiara Pistoletti, Merima Bublin, Manuel Pereira-Barbosa, Reyna Simon, Martin Karjalainen, Sam Mehr, Tushar Banerjee, Carmen Riggioni, Bertrand Evrard, Antonio Carlos Pastorino, Lidia Ilènko, Nikolaos Douladiris, Miguel Vieira, Erik Wambre, Francisco Cabrera-Chavez, Nikos G. Papadopoulos, Piotr Humeniuk, Gert van Duijn, Francesco Zinno, Young-Ae Lee, Lisa Tuppo, Hans de Groot, Léon M.J. Knippels, Pawel Dubiela, Henrik Fomsgaard Kjaer, Andrea Vereda, Djamel Saidi, Kok Loong Ue, Henk Van Loveren, Maria Jose Rodriguez, Marta Lomikovska, Elodie Michaud, Josefina Cernadas, Carmen Ponce, Marysia Recto, Frances Smith, Hassan Al-Dhekri, Shinobu Sakai, Thomas Eiwegger, Ana Rodolfo, Diego Peroni, Nikki Edelbroek, Waltraud Suer, Jenny van Odijk, Irena Nedelea, Borja Bartolomé, Lauren Lissner, Marjeta Sedmak, Annette Jamin, Italo De Vitis, Bo Pontoppidan, Annabelle Capt, Diego G. Peroni, Susana Rodrigues, Juan Carlos López-Rodríguez, David Endesfelder, Lesya Besh, Danila Zennaro, Charlotte G. Mortz, Kati Palosuo, María José Torres, Esozia Arroabarren, Lynne Regent, Laura Valdesoiro Navarrete, Ana Molina, Agha Rehan Khaliq, Phil Couch, Ana Miranda, Thomas Marichal, Riccardo Asero, Denise Borges, Dikla Pivko Levy, Miriam Palacios, Mireille Eb, Stephen J. Galli, Karin Hoffmann-Sommergruber, Anna Gudrun Vidarsdottir, Ifigenia Sfika, André Wolterbeek, Mauro Calvani, Edward F. Knol, Joyce A. M. Emons, Anne-Marie Oomkes-Pilon, Montserrat Bosque García, Daniel Lozano-Ojalvo, Filip Raciborski, Deirdre Galloway, Nanna Juel-Berg, Margareta Brandt Gertmo, Cornelia Bergmayr, Rob Klemans, Juliane Gregersen, Yolanda Meijer, Bettina Brix, Susanne Lau, Karine Adel-Patient, Hanneke van der Kleij, Mareike Price, Jean-Louis Mege, Lizalet Oosthuizen, Agurtzane Bilbao, Indre Butiene, Antonino Romano, Colin Barber, Rosana Camara Agondi, Nour Baïz, Soraya Ainad Tabet, Peter Korošec, Laurian Jongejan, Francine C. van Erp, José Pedro Moreira Silva, Nandinee Patel, Jaime Lozano, Prescilla V. Jeurink, Artur Walkiewicz, Bryan M. Harvey, Tiina J. Kauppila, Aida Semic-Jusufagic, Marianna Murdjeva, Miren Arteaga, Y. Bouferkas, Geunwoong Noh, Henny G. Otten, Sabine Dölle, Christopher Munro, O Dominguez, Gerard H. Koppelman, Leonieke N. van Veen, Vasti Iancu, Georg Mitterer, Patrizia Polverino de Laureto, Juliane Schulz, Ewa Ternesten Hasseus, Caroline Zimmermann, Ivona Barcievic-Jones, Shira Benor, Susanne Schwarz, Eun Ha Jang, Josefina Rodrigues Cernadas, Tadej Avcin, Joseph L. Baumert, Pernille Winther, Stéphane Leteurtre, Gabriela Canto, Louise J Michaelis, Jorge Alvarez, Gabriel Gastaminza, Michela Carola Speciani, Rute Gonçalves, Leire Dopazo, Evgen Benedik, Susanne C. Diesner, Luc S. De Clerck, A. Wesley Burks, Maurits S. van Maaren, Salvatore Tripodi, Philippe Aubert, Kamel Eddine El Mecherfi, Aline B. Sprikkelman, Ana Prieto, Margitta Worm, Edyta Krzych, Maja Krstic, Iride Dello Iacono, Melanie Cap, Alf Weimann, Maria Nassiri, Niels Röckendorf, Vladyslava Barzylovych, Marcia C. Mallozi, Pierre Bruhns, Jeanette Fisker Trandbohus, Ekaterini Papadopoulou, Vicente Albendiz, Timothy Watts, Uta Jappe, Javier Moreno, Maria Carmen Verga, Beatriz Secades Barbado, Carmen Di Scala, Roy Gerth van Wijk, Vladimir Mićović, Esther Barrionuevo, Giampaolo Ricci, Luisa Galindo, Ana Paula Beltran Moschione Castro, Oona Mustonen, Jia Yin, Lucia Caminiti, Jorge Esparza-Gordillo, N Adamia, Anna-Maija Hanni, Romy Gadisseur, Stefano Luccioli, Regina Treudler, Rosetta Ferrara, M. Guendouz, Jaakko Yrjänä, Philipp Starkl, Premendra D. Dwivedi, Javier Cuesta-Herranz, Johan Garssen, Ekaterini Goudouris, Sridevi Muralidharan, Kate Grimshaw, Carolina Sanchez Aranda, Ioana Maris, Manzoor Ahmed, Hajime Karasuyama, Stephanie Claus, Chantal Agabriel, Karen English, Dorien Van Ginkle, Eleonora Savi, Loredana Chini, Ine I. Decuyper, Sabine Schnadt, Valérie Trendelenburg, Jean-Luc Fauquert, Maurizio Mennini, Nikolaos Mikos, Ana Célia Costa, Steve L. Taylor, A. A. Schoemaker, Sara Abián, Margo M. Hagendorens, Andrea Di Rienzo Businco, Melina Makatsori, Eugénia Matos, Lucy Walker, Nikolaos A. Kitsioulis, David Alejandro Mendoza Hernández, Maria Starkhammar, Djordje Filipovic, Aine Adams, Mukul Das, Sonsoles Intente-Herrero, Natalia Blanca López, Marek L. Kowalski, Diana Deleanu, Bernard P. Mahon, Jean-Michel Wal, Lucia Decastelli, Mihaela Popescu, Aimee Lou Nano, Eva Batanero, Tong-Rong Jan, Yolanda Puente, Jacek Borowicz, Aimée Dorkenoo, J. Östling, Mashary Altamimi, Michel Neunlist, Zerrin Yalvaç, Sonia Ricò, Wentong Xue, Linda Cosenza, David C. A. Candy, Robert D. Voyksner, Montserrat De Prada, Abdulhadi Al-Qahtani, Sébastien Holvoet, Wolf-Meinhard Becker, Meropi D. Kontogianni, Bruno Pereira, F. Pineau, Eva Corbet, Kirsten Mehlig, Rosella De Poi, Jolanda H. M. van Bilsen, José Luís Plácido, Hans-Jørgen Malling, Chia-Chi Wang, Philip Couch, Kerrie Kirk, Agata Michalska, Sylke Rietz, Mariya Ivanovska, Victor Matheu-Delgado, Carl Hamsten, Francisca Gómez, Neusa Falbo Wandalsen, Mika J. Mäkelä, Tatyana Sentsova, Kristian Bravin, Philippe Delahaut, Hervé Bernard, Leonor Carneiro-Leão, Michele Miraglia del Giudice, Elena D. Kuvshinova, Jochen Behrends, Caroline Klingebiel, Meta Accetto, Claire Mills, Mariona Pascal, Miguel García Domínguez, Huan Rao, Carmen Saviana Ganea, Umberto Pelosi, Stefano Pattini, Bodo Niggemann, Annamaria Bianchi, Laura Martín-Pedraza, Anna Selby, Cristina Bueno, Stefan Vieths, Luis Felipe Ensina, Florin-Dan Popescu, Antonio Fernandez, Soren Wille, Erna Van Hoeyveld, Carina Kelleher, Athina L. Van Gasse, Anders Blom Jensen, Zorica Zivkovic, Moshe Ben-Shoshan, Sara Pereiro Fernández, Ronald van Ree, Antima Banerjee, Pablo Merida, Mandy Ziegert, Barbara Wróblewska, Morten Christensen, Gador Gomez, Pablo San Segundo-Acosta, Khaled Messaoudi, Anne-Sofie Ravn Ballegaard, Mikael Kuitunen, David Luyt, Vito Sabato, Nesrine Zaabat, Svitlana Zubchenko, Julien Labreuche, Elin Lustig, Katharina Blumchen, Guillaume Pouessel, Ana Fiandor, Stéphanie Lejeune, Paola Dignetti, Helen Brown, Anastasia Cirisano, Evangelia Kompoti, Anna Sokolova, Mercedes Escarrer Jaume, Shan Deng, Dirceu Solé, Chiara Fiamingo, Alessandro Travaglini, Nicolas Gaudenzio, Zbigniew Bartuzi, Antonia Rojas, Roberta Olcese, Nanju Alice Lee, Sandra Brandhoff, Lucien F. Harthoorn, Anna Maria Szyc, Andrea Costanzi, Sabine Pfeifer, Emiliano De Dominicis, Chiara Rafaiani, Yin-Hua Cheng, Elida Nikolla, Ignacio García Núñez, Diego Faggian, Lieve Coorevits, Ayelet Rimon, Erika Jensen-Jarolim, Jacqueline J.M. Castenmiller, Kristin Verbeke, Sean Bennett, Paraskevi Xepapadaki, Glauce Hiromi Yonamine, Anna Wawrzeńczyk, Rusudan Karseladze, Emmanouil Manousakis, Fiona Ward, Ivana Filipovic, Marie Bodinier, Viviana Moschese, Pedro Giavina Bianchi, Alice Coimbra, Alena Berger, Anton A. Shekhetov, Monica Maćków, Philippe Egenmann, Oscar Asensio, Lidia Hanna Markiewicz, Chun-Wei Tung, Zsolt Szépfalusi, Jan Knol, Frits Koning, Carolina S. Aranda, Annick Bastiaensen, Giovanni Battista Pajno, Leticia Pérez-Rodríguez, Ewout W. Steyerberg, Riccardo Sibilano, Valérie Verhasselt, Roberta Lupi, Lukasz Sokolowski, Adam Wawrzeńczyk, Dimitris I. Mitsias, Andreia Forno, Antoine Magnan, Christian Schwager, Ioanna Manolaraki, Alessandro Fiocchi, Tanja Rouhani Rankouhi, Carla Jones, Ana Pereira, Hannah M. Kansen, Michael Clausen, D. Bignardi, Assad M. Butt, Julie C. Locklear, Katrine Lindholm Bøgh, Valery Muhortnich, María Teresa Giner, Juan Miguel Garcia, Maria Luisa Somoza, Raditsa Sokolova, Maria Pasioti, Mirjana Zupancic, Joana Vitte, Duncan Brown, Arnaldo Porto, M. Turfkruyer, Lau Fabricius Larsen, Filipe Benito-Garcia, Mayra Coutinho Andrade, Meltem Ugras, Ingrid Sutic, Rand K. Arnaout, Etienne Cavalier, Marta Neto, Grégory Bouchaud, Elena Varin, Bushra Javed, Carla Camerotto, Monica Bronkowska, Cristiano Caruso, Luís Amaral, Jackeline F. Motta, Sahar Elshorbagi, Cornelis K. van der Ent, Alexandra Rodrigues, Silvia Peveri, Juan Heber Castellanos, Muriel Totis, Joan Bartra, Gjustina Loloci, Ivana Giangrieco, Ekaterina Khaleva, Joaquín Navarro, Kayoko Matsunaga, Jlenia Fresta, Jonathan O'b Hourihane, Sabina Bijlsma, Ana Rodriguez-Fernandez, Rosita Aitoro, Daniela Manila Bianchi, Rosa Jimenez-Feijoo, Mario Plebani, Marleen T. J. Van Ampting, Anthony E.J. Dubois, Clémence Mordacq, Simone Frediani, Martin Chapman, Helena Larramona, Fabrícia Carolino, Yanne Boloh, Ivona Baricevic-Jones, Mathilde Claude, Caroline Thumerelle, Päivi Vähäsarja, Mareen R. Datema, Abdullah Alfhaid, Diana Perez Alzate, Laura Santos-Diez, Graham King, Maria Teresa Guerra Perez, Jean-Marie Renaudin, Frieke Kuper, Josué Alejandro Huertas Guzmán, Harry Wichers, Thomas Keil, A. Haddi, Jennifer Santos, Regina Selb, Aida del Campo García, Maria Basagaña, Valentino Pavišić, Angela Simpson, Chris H. Bridts, Susana Piedade, Silvia Gallina, Isabella Pali-Schöll, Inês Pádua, Margaretha A. Faber, Frédéric de Blay, Luís Câmara Pestana, Ben Remington, Anna S. Pelkonen, Sandra Lucarelli, Ivana Šutić, Olivier Tranquet, Montserrat López Onieva, Antonio Amoroso, Paola Minale, Katia Basello, George Du Toit, Daniela Adriano, Adnan Custovic, Zbikowska-Gotz M, Domingo Barber, Inmaculada Doña, Christine Breynaert, Hanan Sharif, Manon M. Oude Nijhuis, Sandra Denery, Bertine M. J. Flokstra-de Blok, Rinkesh Kumar Gupta, Pieter-Jan de Kam, Dianne E. Campbell, Carmen M. D'Amelio, Nunzia Maiello, Ingo Marenholz, José María Ignacio García, Helen Lindqvist, Lilian Moraes, Cleonir Lui de Moraes Beck, Eunice Dias de Castro, Cono Casale, Barbara Majkowska-Wojciechowska, Maria Petrodimopoulou, Andrea Mikkelsen, Hub P. J. M. Noteborn, Hulya Ercan Saricoban, Moira Austin, Martinus Løvik, Graham Roberts, Isabella Annesi-Maesano, Aeilko H. Zwinderman, Sigrun H. Lund, Anouska D. Michelsen-Huisman, Fernando Bandrés Sánchez-Cruz, Francisco Javier Ruano, Valérie Liabeuf, Eman Madbouly, Pasquale Comberiati, Maria Isabel Garcimartin, Stephan Scheurer, Inna A. Larkova, Jean Tratt, Renata Rodrigues Cocco, Younes Belabbas, Lorella Paparo, Elizabeth Griffiths, Gian Lodovico Rapaccini, Audrey Dunn Galvin, Zizi Cojocariu, Isidor Hutteger, Claire Claverie, S.M. Nedelska, Anna Kuklinska-Pijanka, Jenny Badas, Mónica Piquer, Iztok Devetak, A.K.F. Gushken, Frans Timmermans, Adriana Machinena, Francisco Javier Monteseirin, Amaranta Traversa, Fátima Cabral Duarte, Tomaž Poredoš, Peter Meyer, Cristina Arêde, Rosa Muñoz-Cano, Barbara Pfitzner, Alejandro Joral, Juan Carlos Daza, Laurent L. Reber, Olga Chernyak, and Maria Antonetta Ciardiello

Subjects
Pulmonary and Respiratory Medicine, Allergy, medicine.medical_specialty, 030504 nursing, business.industry, Immunology, RC581-607, medicine.disease, Meeting Abstracts, 03 medical and health sciences, 0302 clinical medicine, Food allergy, 030225 pediatrics, Family medicine, medicine, Immunology and Allergy, Immunologic diseases. Allergy, 0305 other medical science, business, Anaphylaxis
Published
2017
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5. Detection of wheat allergens using 2D Western blot and mass spectrometry

Author

S. El Guendi, X. Van der Brempt, Nathalie Gillard, Catherine Bertholet, Etienne Cavalier, Justine Courtois, Stéphanie Tollenaere, Romy Gadisseur, and Birgit Quinting

Subjects
Adult, Male, Adolescent, Blotting, Western, Clinical Biochemistry, Pharmaceutical Science, Wheat Hypersensitivity, Immunoglobulin E, 01 natural sciences, Analytical Chemistry, Young Adult, Western blot, Tandem Mass Spectrometry, Drug Discovery, medicine, Humans, Child, Chromatography, High Pressure Liquid, Spectroscopy, Sensitization, Two-dimensional gel electrophoresis, medicine.diagnostic_test, Spots, biology, 010405 organic chemistry, Chemistry, 010401 analytical chemistry, Atopic dermatitis, Allergens, Middle Aged, medicine.disease, Molecular biology, 0104 chemical sciences, medicine.anatomical_structure, Child, Preschool, biology.protein, Female, Wheat allergy, Anaphylaxis
Abstract

Background Wheat allergy is relatively common and the associated clinical manifestations depend on the involved molecular allergens as well as on the way of exposure. Different symptoms have been described: wheat-dependent exercise-induced anaphylaxis (WDEIA), atopic dermatitis (AD) and pollen rhinitis (PR). Traditional diagnostic methods do not allow accurate molecular identification of the allergens that are essential for risk assessment and for the choice of the most adapted treatment. Methods Standardized total protein extracts obtained from wheat seeds were separated by 2D electrophoresis. Twenty-one sera with high wheat-specific immunoglobulin E (sIgE) levels were classified into three patients groups based on their clinical profile. These sera were tested by Western blot on 2D separated standardized wheat protein extract and their sIgE sensitization profiles were compared. Results Specific sensitization profiles were identified for each phenotype group. For WDEIA, protein spots around 37 kDa (pH 6-9) and 37–50 kDa (pH 5-6) were identified. For AD, spots were observed around 50 kDa (pH 9), 10 kDa (pH 9) and 20 to 75 kDa (pH3). For PR, specific spots were located around 90 kDa (pH 9). The mass spectrometry (UHPLC-MS/MS) analysis of these identified spots pointed out several potential interesting allergens: Tri a 26, Tri a bA, Tri a 34, Tri a tritin. Conclusions The present study allowed the identification of different protein areas specific to these studied groups. The protein spots of interest were identified by UHPLC-MS/MS. It has been possible to establish a link between a specific symptomatology and the newly identified responsible allergens.

Published
2020
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6. Mise en évidence par western blot 2D de réactions allergiques croisées entre les crustacés, acariens et grillons

Author

Etienne Cavalier, Birgit Quinting, Romy Gadisseur, Justine Courtois, Stéphanie Tollenaere, and X. Van Der Brempt

Subjects
Immunology and Allergy
Abstract

Introduction L’entomophagie est une alternative alimentaire qui devient une pratique courante dans nos pays. Cependant, la composition proteique et les allergenes moleculaires presents dans cette nouvelle matrice alimentaire sont encore tres peu identifies et decrits dans la litterature. Le but de cette etude est donc de mettre en evidence les potentielles reactions croisees entre les allergenes des crustaces, acariens et grillons (Gryllodes sigillatus). Methodes Douze patients presentant une allergie aux crustaces et/ou acariens ont ete selectionnes sur base de leur positivite en IgE specifiques (IgEs) notamment diriges contre deux tropomyosines, Pen a 1 (crevettes, de 14,3 > 100 kUA/L) et Der p 10 (acariens, de 0,01 > 100 kUA/L),dosees par ImmunoCAP250 (Thermo Fisher Scientific). Ensuite, une extraction proteique totale a partir de grillons seches a ete realisee afin de separer les proteines selon leurs points isoelectriques (pI) et poids moleculaires. Finalement, des Western blots (WB) 1D et 2D ont ete realises afin de determiner les allergenes moleculaires responsables d’un profil de sensibilisation pour chaque patient teste. Resultats Le WB 1D a confirme la reactivite des IgEs contre une proteine du grillon situee vers 37 kDa qui pourrait etre la tropomyosine ou l’arginine kinase (AK). Le WB 2D a egalement confirme une sensibilisation contre une proteine situee aux environs de 37 kDa, pI 3-4 qui pourrait etre la tropomyosine et/ou contre une proteine autour de 37 kDa, pI 6-7 qui pourrait correspondre a l’AK. De plus, une autre zone a ete mise en evidence vers 17,5 kDa, pI 4 qui pourrait etre la troponine C. Discussion Les hypotheses emises proposant la tropomyosine, l’AK et la troponine C comme etant des proteines potentiellement responsables d’une reaction croisee avec les criquets seront confirmees par spectrometrie de masse. In fine, cette analyse contribuera a evaluer les risques encourus a l’aide d’un etiquetage adapte et a limiter le risque de choc anaphylactique suite a la consommation d’insectes. Conclusion Ces resultats preliminaires ont montre qu’il y a bien presence d’une reaction croisee entre les crustaces, acariens et grillons. Les proteines en cause sont la tropomyosine, l’AK et la troponine C.

Published
2018
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7. Development of a 1-Step Enzyme-Linked Immunosorbent Assay for the Rapid Diagnosis of Bovine Respiratory Syncytial Virus in Postmortem Specimens

Author

Mathieu Boxus, Pierre Kerkhofs, Carine Letellier, Frédéric Schynts, Birgit Quinting, Béatrice Robert, and Alfred Collard

Subjects
0301 basic medicine, 040301 veterinary sciences, Respiratory Tract Diseases, 030106 microbiology, Cattle Diseases, Enzyme-Linked Immunosorbent Assay, Respiratory Syncytial Virus, Bovine, Respiratory Syncytial Virus Infections, Biology, Sensitivity and Specificity, Virus, law.invention, Immunoenzyme Techniques, 0403 veterinary science, 03 medical and health sciences, Antigen, law, medicine, Animals, Respiratory system, Fluorescent Antibody Technique, Indirect, Antigens, Viral, Polymerase chain reaction, chemistry.chemical_classification, General Veterinary, Reverse Transcriptase Polymerase Chain Reaction, Respiratory disease, Reproducibility of Results, IIf, 04 agricultural and veterinary sciences, medicine.disease, Virology, Reverse transcriptase, Enzyme, chemistry, RNA, Viral, Cattle
Abstract

Bovine respiratory syncytial virus (BRSV) is associated with severe respiratory disease in cattle. BRSV infection frequently leads to the death of young infected animals. The presence of BRSV in postmortem specimens is routinely detected using indirect immunofluorescence (IIF). However, this technique requires special equipment and considerable expertise. The present paper describes the development of a 1-step ELISA for rapid (1.5 hours) detection of BRSV antigen in organ homogenates. The performance of the new 1-step ELISA was evaluated using bovine postmortem specimens ( n = 108) in comparison with 3 other BRSV diagnostic techniques: indirect immunofluorescence, the Clearview respiratory syncytial virus (RSV) test, and real-time reverse transcriptase polymerase chain reaction (RT-PCR). The relative sensitivity, specificity, and the kappa coefficient of 1-step ELISA, the Clearview RSV electroimmunoassay (EIA), and IIF were calculated, using real-time RT-PCR as the reference test. The new 1-step ELISA was the most sensitive and specific of the 3 tests. Thus, the new 1-step ELISA is a reliable test for detecting BRSV antigen in organ homogenates.

Published
2007
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8. Crystal Structure of the Mycobacterium fortuitum Class A β-Lactamase: Structural Basis for Broad Substrate Specificity

Author

Jean-Marie Frère, Birgit Quinting, Eric Sauvage, E. Fonze, Paulette Charlier, and Moreno Galleni

Subjects
Models, Molecular, medicine.medical_treatment, Molecular Sequence Data, Mycobacterium chelonae, Cefotaxime, beta-Lactamases, Substrate Specificity, Microbiology, Mycobacterium tuberculosis, Structure-Activity Relationship, Mechanisms of Resistance, polycyclic compounds, medicine, Pharmacology (medical), Amino Acid Sequence, Mycobacterium leprae, Pharmacology, Mycobacterium kansasii, Binding Sites, biology, Mycobacterium fortuitum, Mycobacterium smegmatis, biochemical phenomena, metabolism, and nutrition, bacterial infections and mycoses, biology.organism_classification, Anti-Bacterial Agents, Infectious Diseases, Beta-lactamase, bacteria, Crystallization, Mycobacterium
Abstract

Mycobacteria are important causes of infectious diseases. Although Mycobacterium tuberculosis and Mycobacterium leprae, two slow-growing species, are responsible for the most serious diseases, some fast-growing species, such as Mycobacterium avium, Mycobacterium kansasii, Mycobacterium chelonae, and Mycobacterium fortuitum, may cause opportunistic infections among AIDS patients (24). In addition, M. fortuitum has been reported to be responsible for a wide spectrum of clinical diseases, such as skin or soft tissue infections following surgery, pulmonary infections, accidental penetrating trauma, and wounds that come in contact with soil or water contaminated with these mycobacteria, though nosocomial infections are by far the most common (41, 44). The cell wall of mycobacteria contains mycolic acid, arabinogalactan, and peptidoglycan, forming a covalent complex. The influx of small hydrophilic agents through the resulting low-permeability envelope is extremely slow and is thought to be one of the major factors involved in the resistance of mycobacteria to β-lactam antibiotics (21, 41). β-Lactamase production, catalyzing β-lactam antibiotic hydrolysis, appears to be the second mechanism by which mycobacteria express β-lactam resistance (9, 21, 35). Chromosomally encoded β-lactamases have been detected in most, but not all, mycobacterial species, including M. fortuitum and M. tuberculosis (43). The class A β-lactamase of M. fortuitum (MFO) is a chromosomally encoded broad-spectrum β-lactamase hydrolyzing both cephalosporins and penicillins. Its substrate profile includes ureidopenicillins (piperacillin, azlocillin, and mezlocillin), carbenicillin, cephalothin, cefotaxime, and cefuroxime, but not ceftazidime. Cefoxitin, dicloxacillin, imipenem, and aztreonam are poorly recognized by the enzyme, and the protein is inhibited by the penem inhibitor BRL42715 and, to a lesser extent, clavulanic acid. The specificity profile is similar overall to those of CTX-M-type enzymes; some TEM-derived extended-spectrum β-lactamases (ESBLs); the chromosomally encoded ESBLs from Citrobacter sedlakii and Yersinia enterocolitica; and β-lactamases identified in the genera Nocardia, Kluyvera, and Burkholderia (1, 12, 31, 33, 35, 37). At the amino-acid level, the mature protein shares 70% identity with the β-lactamase of Mycobacterium smegmatis and between 40 and 45% with the aforementioned proteins. MFO also shares 41% amino acid identity with the ESBL Toho-1. Many recent studies have been concerned with the structure solution of TEM, SHV, or CTX-M-type ESBLs, but few structural data are available on chromosomally encoded broad-spectrum class A β-lactamases. MFO is the first solved structure of a mycobacterial β-lactamase. Its structure-activity relationship was analyzed on the basis of a comparison between its structure and recently solved ESBL structures (5, 27, 29, 38).

Published
2006
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9. Allergie au froment : caractérisation de nouveaux allergènes par immunoblot 2D et spectrométrie de masse

Author

Nathalie Gillard, Justine Courtois, Etienne Cavalier, Romy Gadisseur, Pierre Lukas, Birgit Quinting, and Catherine Bertholet

Subjects
Immunology and Allergy
Abstract

Introduction Le froment est une source allergenique complexe contenant un grand nombre de proteines qui sont difficiles a isoler et a identifier. Le but de ce projet est de developper une methode de diagnostic capable de relier les allergenes specifiques a une clinique particuliere via western blot (WB) 2D. Ensuite, la technique de spectrometrie de masse (LC-MS/MS) a ete utilisee pour identifier ces allergenes. Methodes Une extraction proteique suivie d’une separation sur base du point isoelectrique et du poids moleculaire des proteines ont ete realisees. Vingt-cinq patients presentant des IgE specifiques (IgEs) pour le froment ont ete selectionnes et classes en 3 groupes : anaphylaxie alimentaire induite par l’effort (AAIE), dermatite atopique (DA) et rhinite pollinique (RP). Leur serum a ete analyse par WB 2D afin d’evaluer la reactivite de leurs IgEs. Les profils de sensibilisation ont ete compares et les spots proteiques d’interet identifies par LC-MS/MS. Resultats Des profils de sensibilisation specifiques ont ete identifies pour chaque groupe. Pour le groupe AAIE, les spots proteiques sont situes a 35 kDa, pH6-9 et a 37–50 kDa, pH5-6. Pour le groupe DA, le profil est localise autour de 50 kDa, pH9 ; 10 kDa, pH9 et a 20–75 kDa, pH3. Pour le groupe RP, le profil est situe vers 90 kDa, pH9. Les analyses en LC-MS/MS de ces spots proteiques ont mis en evidence differents allergenes potentiellement interessants tels que tri a 26, tri a bA, tri a 34 et tri a tritin. Discussion L’etude presentee repond a une demande clinique afin de prevoir les reactions croisees, d’adapter les regimes et de limiter le risque de choc anaphylactique. Neanmoins, les resultats restent a correler a l’anamnese. Les manifestations cliniques dependent des allergenes impliques et de la voie d’exposition. Ce projet vise a mettre en evidence de nouveaux allergenes qui pourraient etre associes a une symptomatologie clinique specifique. Conclusion Des profils de sensibilisation specifiques ont ete identifies pour les 3 groupes, mais l’identification de certains spots proteiques est encore en cours d’analyse. A terme, il sera possible d’etablir un lien entre la symptomatologie specifique et les allergenes responsables nouvellement identifies.

Published
2017
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10. Intérêt du Western blot 2D pour le diagnostic des allergies au froment

Author

Catherine Bertholet, Romy Gadisseur, P. Delahaut, and Birgit Quinting

Subjects
Immunology and Allergy
Abstract

Introduction L’allergie au froment est relativement frequente et ses manifestations cliniques varient selon l’allergene implique et la voie d’exposition : on distingue l’anaphylaxie alimentaire induite par l’effort (AAIE), l’asthme du boulanger (AB), la dermatite atopique (DA), la rhinite pollinique (RP) et l’urticaire. De nombreux allergenes du froment ont ete decrits. Neanmoins, seul un faible nombre d’allergenes a ete etaye dans une manifestation allergique (l’ω5-gliadine du froment est responsable de l’AAIE). De plus, les sensibilisations ne savent pas etre mises en evidence par les techniques traditionnelles de dosage car les allergenes moleculaires ne sont pas commercialises. Notre etude propose d’utiliser le Western blot 2D (WB 2D) afin d’apporter une aide au diagnostic de l’allergie au froment. Methodes Des extraits proteiques standardises obtenus a partir de graines de froment ont ete separes sur base de leur point isoelectrique et de leur taille. Nous avons selectionne 169 serums de patients sensibilises au froment sur base de leurs IgE specifiques (IgEs) froment. Parmi ces 169 serums, nous avons fait reagir 25 serums de patients repartis en 4 groupes (AAIE, DA, RP et mixte DA/RP) avec ces extraits standardises. Ensuite, nous avons compare leurs profils de sensibilisation. Resultats La technique a permis d’identifier profils de sensibilisations specifiques a chaque groupe. Pour AAIE, nous observons un profil aux environs de 37 kDa (pH 6–9) et de 37 a 50 kDa (pH 5–6). Pour DA, le profil se trouve aux environs de 50 kDa (pH 9), de 10 kDa (pH 9) et de 20 a 75 kDa (pH3). Pour RP, le profil se trouve aux environs de 90 kDa (pH 9). Enfin, pour le groupe mixte DA/RP, nous n’avons pas observe de profil proteique specifique. Conclusion A ce stade de l’etude, les profils obtenus ont permis d’identifier des zones proteiques specifiques a 3 groupes de patients etudies. Ces zones reconnues par les IgEs concernent un ou plusieurs allergenes qu’il serait interessant d’identifier afin de les associer a une symptomatologie. La matrice du froment etant complexe, il est difficile d’identifier l’allergene dans ces zones reactionnelles. Ce lien sera etabli par une identification par spectrometrie de masse.

Published
2016
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11. Creating hybrid proteins by insertion of exogenous peptides into permissive sites of a class A beta-lactamase

Author

Nadia, Ruth, Birgit, Quinting, Jacques, Mainil, Bernard, Hallet, Jean-Marie, Frère, Kris, Huygen, and Moreno, Galleni

Subjects
Mice, Inbred BALB C, Vaccines, Escherichia coli Proteins, Recombinant Fusion Proteins, Bacterial Toxins, HIV Envelope Protein gp120, Protein Engineering, Antibodies, Bacterial, beta-Lactamases, Enterotoxins, Mice, Solubility, Antibody Formation, Animals, Immunization
Abstract

Insertion of heterologous peptide sequences into a protein carrier may impose structural constraints that could help the peptide to adopt a proper fold. This concept could be the starting point for the development of a new generation of safe subunit vaccines based on the expression of poorly immunogenic epitopes. In the present study, we characterized the tolerance of the TEM-1 class A beta-lactamase to the insertion of two different peptides, the V3 loop of the gp120 protein of HIV, and the thermostable STa enterotoxin produced by enterotoxic Escherichia coli. Insertion of the V3 loop of the HIV gp120 protein into the TEM-1 scaffold yielded insoluble and poorly produced proteins. By contrast, four hybrid beta-lactamases carrying the STa peptide were efficiently produced and purified. Immunization of BALB/c mice with these hybrid proteins produced high levels of TEM-1-specific antibodies, together with significant levels of neutralizing antibodies against STa.

Published
2008

12. Acidophilic adaptation of family 11 endo-beta-1,4-xylanases: modeling and mutational analysis

Author

Frédéric De Lemos Esteves, Birgit Quinting, Jean-Marie Frère, Josette Lamotte-Brasseur, and Virginie Ruelle

Subjects
Models, Molecular, Stereochemistry, DNA Mutational Analysis, Molecular Sequence Data, Substrate analog, Biochemistry, Streptomyces, Article, Substrate Specificity, chemistry.chemical_compound, Enzyme Stability, Amino Acid Sequence, Binding site, Site-directed mutagenesis, Molecular Biology, chemistry.chemical_classification, Binding Sites, Endo-1,4-beta Xylanases, Molecular mass, biology, Temperature, Glutamic acid, Hydrogen-Ion Concentration, biology.organism_classification, Enzyme, chemistry, Xylanase, Mutagenesis, Site-Directed, Sequence Alignment
Abstract

Xyl1 from Streptomyces sp. S38 belongs to the low molecular mass family 11 of endo-beta-1,4-xylanases. Its three-dimensional structure has been solved at 2.0 A and its optimum temperature and pH for enzymatic activity are 60 degrees C and 6.0, respectively. Aspergillus kawachii xylanase XynC belongs to the same family but is an acidophilic enzyme with an optimum pH of 2.0. Structural comparison of Xyl1 and XynC showed differences in residues surrounding the two glutamic acid side chains involved in the catalysis that could be responsible for the acidophilic adaptation of XynC. Mutations W20Y, N48D, A134E, and Y193W were introduced by site-directed mutagenesis and combined in multiple mutants. Trp 20 and Tyr 193 are involved in substrate binding. The Y193W mutation inactivated Xyl1 whereas W20Y decreased the optimum pH of Xyl1 to 5.0 and slightly increased its specific activity. The N48D mutation also decreased the optimum pH of Xyl1 by one unit. The A134E substitution did not induce any change, but when combined with N48D, a synergistic effect was observed with a 1.4 unit decrease in the optimum pH. Modeling showed that the orientations of residue 193 and of the fully conserved Arg 131 are different in acidophilic and "alkaline" xylanases whereas the introduced Tyr 20 probably modifies the pKa of the acid-base catalyst via residue Asn 48. Docking of a substrate analog in the catalytic site highlighted striking differences between Xyl1 and XynC in substrate binding. Hydrophobicity calculations showed a correlation between acidophilic adaptation and a decreased hydrophobicity around the two glutamic acid side chains involved in catalysis.

Published
2004

13. Contribution of β-lactamase production to the resistance of mycobacteria to β-lactam antibiotics

Author

Brigitte Gicquel, Moreno Galleni, Birgit Quinting, Jean-Marc Reyrat, Gianfranco Amicosante, Vladimir Pelicic, Didier Monnaie, Jean-Marie Frère, Université de Liège, Génétique mycobactérienne - Mycobacterial genetics, Institut Pasteur [Paris] (IP), University of L'Aquila [Italy] (UNIVAQ), This work was supported by the Belgian Government within the framework of the Pôles d'Attraction Interuniversitaires (PAI No. 19), an Action Concertée with the Belgian Government (convention 89/94-30) and EC contracts within the framework of the Biomed (BIO 4-CT96-0126) and Biotech (BIO-CT-0520) programs., Centre for Protein Engineering (CIP), Institut de Chimie (B6) - Sart Tilman, and Institut Pasteur [Paris]

Subjects
Penicillin binding proteins, Antibiotics, MESH: beta-Lactamases, Biochemistry, Mycolic acid, Diffusion, chemistry.chemical_compound, PBP, Structural Biology, penicillin binding protein, MIC, ComputingMilieux_MISCELLANEOUS, chemistry.chemical_classification, 0303 health sciences, MESH: Microbial Sensitivity Tests, biology, Minimum inhibitory concentration, Nontuberculous Mycobacteria, Anti-Bacterial Agents, Electroporation, MESH: Nontuberculous Mycobacteria, MESH: Permeability, Lactam, Mycobacterium fortuitum, MESH: Transformation, Bacterial, Mycobacterium fallax, medicine.drug_class, Biophysics, Microbial Sensitivity Tests, beta-Lactams, β-Lactamase, Molecular Biology, Permeability, beta-Lactam Resistance, beta-Lactamases, Mycobacterium, Microbiology, 03 medical and health sciences, MESH: beta-Lactams, MESH: Anti-Bacterial Agents, Genetics, medicine, MESH: Mycobacterium, MESH: Electroporation, 030304 developmental biology, 030306 microbiology, Cell Biology, biology.organism_classification, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, MESH: beta-Lactam Resistance, Enzyme, chemistry, Transformation, Bacterial
Abstract

International audience; Mycobacterium fallax (M. fallax) is naturally sensitive to many beta-lactam antibiotics (MIC < 2 microg/ml) and devoid of beta-lactamase activity. In this paper, we show that the production of the beta-lactamase of Mycobacterium fortuitum by M. fallax significantly increased the MIC values for good substrates of the enzyme, whereas the potency of poor substrates or transient inactivators was not modified. The rates of diffusion of beta-lactams through the mycolic acid layer were low, but for all studied compounds the half-equilibration times were such that they would only marginally affect the MIC values in the absence of beta-lactamase production. These results emphasize the importance of enzymatic degradation as a major factor in the resistance of mycobacteria to penicillins.

Published
1997
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14. Purification and properties of the Mycobacterium smegmatis mc2155 β-lactamase

Author

Birgit Quinting, Brigitte Gicquel, Juliano Timm, Jean-Marie Frère, Gianfranco Amicosante, and Moreno Galleni

Subjects
Protein Denaturation, Hot Temperature, Molecular Sequence Data, Mycobacterium smegmatis, Guanidines, Applied Microbiology and Biotechnology, Microbiology, beta-Lactamases, Mycobacterium, chemistry.chemical_compound, Bacterial Proteins, Genetics, Urea, Guanidine, Mycobacterium smegmatis mc2155 β-lactamase, Purification, Molecular Biology, chemistry.chemical_classification, Sequence Homology, Amino Acid, biology, Hydrogen-Ion Concentration, biology.organism_classification, Enzyme assay, Amino acid, Kinetics, Enzyme, Sequence homology, chemistry, Biochemistry, biology.protein, Mycobacterium fortuitum
Abstract

The beta-lactamase of Mycobacterium smegmatis mc(2)155 has been purified to protein homogeneity. Its N-terminal sequence and catalytic properties are similar to those of the beta-lactamase produced by Mycobacterium fortuitum D316 and establish this new enzyme as a member of molecular class A.

Published
1997

15. Use of the chromosomal class A beta-lactamase of Mycobacterium fortuitum D316 to study potentially poor substrates and inhibitory beta-lactam compounds

Author

Moreno Galleni, Birgit Quinting, Graziella Orefici, Jean-Marie Frère, Arduino Oratore, Lanfranco Fattorini, Gianfranco Amicosante, and Nicola Franceschini

Subjects
Lactams, medicine.medical_treatment, Ceftazidime, beta-Lactams, Dicloxacillin, beta-Lactamases, Microbiology, Mycobacterium, Clavulanic Acids, Cloxacillin, medicine, Pharmacology (medical), Cefoxitin, Beta-Lactamase Inhibitors, Clavulanic Acid, Antibacterial agent, Pharmacology, biology, Chromosomes, Bacterial, biology.organism_classification, Anti-Bacterial Agents, Kinetics, Infectious Diseases, Biochemistry, Beta-lactamase, Mycobacterium fortuitum, beta-Lactamase Inhibitors, medicine.drug, Research Article
Abstract

Sixteen different compounds usually considered beta-lactamase stable or representing potential beta-lactam inhibitors and inactivators were tested against the beta-lactamase produced by Mycobacterium fortuitum. The compounds exhibiting the most interesting properties were BRL42715, which was by far the best inactivator, and CGP31608 and ceftazidime, which were not recognized by the enzyme. These compounds thus exhibited adequate properties for fighting mycobacterial infections. Although cloxacillin, dicloxacillin, cefoxitin, and CP65207-2 exhibited poor inhibitory efficiency against the enzyme, they were also rather poor substrates and might be considered potential antimycobacterial agents. By contrast, CGP31523A and ceftamet were good substrates.

Published
1994

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