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1. Defining Disease, Diagnosis, and Translational Medicine within a Homeostatic Perturbation Paradigm: The National Institutes of Health Undiagnosed Diseases Program Experience

Author

Timothy Gall, Elise Valkanas, Christofer Bello, Thomas Markello, Christopher Adams, William P. Bone, Alexander J. Brandt, Jennifer M. Brazill, Lynn Carmichael, Mariska Davids, Joie Davis, Zoraida Diaz-Perez, David Draper, Jeremy Elson, Elise D. Flynn, Rena Godfrey, Catherine Groden, Cheng-Kang Hsieh, Roxanne Fischer, Gretchen A. Golas, Jessica Guzman, Yan Huang, Megan S. Kane, Elizabeth Lee, Chong Li, Amanda E. Links, Valerie Maduro, May Christine V. Malicdan, Fayeza S. Malik, Michele Nehrebecky, Joun Park, Paul Pemberton, Katherine Schaffer, Dimitre Simeonov, Murat Sincan, Damian Smedley, Zaheer Valivullah, Colleen Wahl, Nicole Washington, Lynne A. Wolfe, Karen Xu, Yi Zhu, William A. Gahl, Cynthia J. Tifft, Camillo Toro, David R. Adams, Miao He, Peter N. Robinson, Melissa A. Haendel, R. Grace Zhai, and Cornelius F. Boerkoel

Subjects
rare disease, human phenotype ontology, distributed cognition, diploid alignment, glycome, Medicine (General), R5-920
Abstract

Traditionally, the use of genomic information for personalized medical decisions relies on prior discovery and validation of genotype–phenotype associations. This approach constrains care for patients presenting with undescribed problems. The National Institutes of Health (NIH) Undiagnosed Diseases Program (UDP) hypothesized that defining disease as maladaptation to an ecological niche allows delineation of a logical framework to diagnose and evaluate such patients. Herein, we present the philosophical bases, methodologies, and processes implemented by the NIH UDP. The NIH UDP incorporated use of the Human Phenotype Ontology, developed a genomic alignment strategy cognizant of parental genotypes, pursued agnostic biochemical analyses, implemented functional validation, and established virtual villages of global experts. This systematic approach provided a foundation for the diagnostic or non-diagnostic answers provided to patients and serves as a paradigm for scalable translational research.

Published
2017
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2. The Undiagnosed Diseases Network: Accelerating Discovery about Health and Disease

Author

Rachel B. Ramoni, John J. Mulvihill, David R. Adams, Patrick Allard, Euan A. Ashley, Jonathan A. Bernstein, William A. Gahl, Rizwan Hamid, Joseph Loscalzo, Alexa T. McCray, Vandana Shashi, Cynthia J. Tifft, Anastasia L. Wise, Christopher J. Adams, Mercedes E. Alejandro, Mashid S. Azamian, Carlos A. Bacino, Ashok Balasubramanyam, Hayk Barseghyan, Alan H. Beggs, Hugo J. Bellen, David Bernick, Anna Bican, David P. Bick, Camille L. Birch, Braden E. Boone, Lauren C. Briere, Donna M. Brown, Catherine A. Brownstein, Matthew Brush, Elizabeth A. Burke, Lindsay C. Burrage, Katherine R. Chao, Gary D. Clark, Joy D. Cogan, Cynthia M. Cooper, William J. Craigen, Mariska Davids, Jyoti G. Dayal, Esteban C. Dell’Angelica, Shweta U. Dhar, Katrina M. Dipple, Laurel A. Donnell-Fink, Naghmeh Dorrani, Daniel C. Dorset, David D. Draper, Annika M. Dries, Rachel Eastwood, David J. Eckstein, Lisa T. Emrick, Christine M. Eng, Cecilia Esteves, Tyra Estwick, Paul G. Fisher, Trevor S. Frisby, Kate Frost, Valerie Gartner, Rena A. Godfrey, Mitchell Goheen, Gretchen A. Golas, David B. Goldstein, Mary 'Gracie' G. Gordon, Sarah E. Gould, Jean-Philippe F. Gourdine, Brett H. Graham, Catherine A. Groden, Andrea L. Gropman, Mary E. Hackbarth, Melissa Haendel, Neil A. Hanchard, Lori H. Handley, Isabel Hardee, Matthew R. Herzog, Ingrid A. Holm, Ellen M. Howerton, Brenda Iglesias, Howard J. Jacob, Mahim Jain, Yong-hui Jiang, Jean M. Johnston, Angela L. Jones, Alanna E. Koehler, David M. Koeller, Isaac S. Kohane, Jennefer N. Kohler, Donna M. Krasnewich, Elizabeth L. Krieg, Joel B. Krier, Jennifer E. Kyle, Seema R. Lalani, Lea Latham, Yvonne L. Latour, C. Christopher Lau, Jozef Lazar, Brendan H. Lee, Hane Lee, Paul R. Lee, Shawn E. Levy, Denise J. Levy, Richard A. Lewis, Adam P. Liebendorder, Sharyn A. Lincoln, Carson R. Loomis, Richard L. Maas, Ellen F. Macnamara, Calum A. MacRae, Valerie V. Maduro, May Christine V. Malicdan, Laura A. Mamounas, Teri A. Manolio, Thomas C. Markello, Casey Martin, Paul Mazur, Alexandra J. McCarty, Allyn McConkie-Rosell, Thomas O. Metz, Matthew Might, Paolo M. Moretti, Jennifer L. Murphy, Donna M. Muzny, Michele E. Nehrebecky, Stan F. Nelson, J. Scott Newberry, John H. Newman, Sarah K. Nicholas, Donna Novacic, Jordan S. Orange, J. Carl Pallais, Christina G.S. Palmer, Jeanette C. Papp, Loren D.M. Pena, John A. Phillips, Jennifer E. Posey, John H. Postlethwait, Lorraine Potocki, Barbara N. Pusey, Amy K. Robertson, Lance H. Rodan, Jill A. Rosenfeld, Sarah Sadozai, Katherine E. Schaffer, Kelly Schoch, Molly C. Schroeder, Daryl A. Scott, Prashant Sharma, Edwin K. Silverman, Janet S. Sinsheimer, Ariane G. Soldatos, Rebecca C. Spillmann, Kimberly Splinter, Joan M. Stoler, Nicholas Stong, Kimberly A. Strong, Jennifer A. Sullivan, David A. Sweetser, Sara P. Thomas, Nathanial J. Tolman, Camilo Toro, Alyssa A. Tran, Zaheer M. Valivullah, Eric Vilain, Daryl M. Waggott, Colleen E. Wahl, Nicole M. Walley, Chris A. Walsh, Michael F. Wangler, Mike Warburton, Patricia A. Ward, Katrina M. Waters, Bobbie-Jo M. Webb-Robertson, Alec A. Weech, Monte Westerfield, Matthew T. Wheeler, Lynne A. Wolfe, Elizabeth A. Worthey, Shinya Yamamoto, Yaping Yang, Guoyun Yu, and Patricia A. Zornio

Subjects
0301 basic medicine, Knowledge management, Genotype, Genotyping Techniques, Best practice, Disease, 030105 genetics & heredity, Bioinformatics, 03 medical and health sciences, Rare Diseases, Diagnostic model, Common fund, Genetics, Humans, Metabolomics, Functional studies, Genetics (clinical), Information Dissemination, business.industry, Disease mechanisms, Sequence Analysis, DNA, United States, Research objectives, Data sharing, Phenotype, 030104 developmental biology, National Institutes of Health (U.S.), Commentary, business
Abstract

Diagnosis at the edges of our knowledge calls upon clinicians to be data driven, cross-disciplinary, and collaborative in unprecedented ways. Exact disease recognition, an element of the concept of precision in medicine, requires new infrastructure that spans geography, institutional boundaries, and the divide between clinical care and research. The National Institutes of Health (NIH) Common Fund supports the Undiagnosed Diseases Network (UDN) as an exemplar of this model of precise diagnosis. Its goals are to forge a strategy to accelerate the diagnosis of rare or previously unrecognized diseases, to improve recommendations for clinical management, and to advance research, especially into disease mechanisms. The network will achieve these objectives by evaluating patients with undiagnosed diseases, fostering a breadth of expert collaborations, determining best practices for translating the strategy into medical centers nationwide, and sharing findings, data, specimens, and approaches with the scientific and medical communities. Building the UDN has already brought insights to human and medical geneticists. The initial focus has been on data sharing, establishing common protocols for institutional review boards and data sharing, creating protocols for referring and evaluating patients, and providing DNA sequencing, metabolomic analysis, and functional studies in model organisms. By extending this precision diagnostic model nationally, we strive to meld clinical and research objectives, improve patient outcomes, and contribute to medical science.

Published
2017
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3. A Recurrent De Novo Variant in NACC1 Causes a Syndrome Characterized by Infantile Epilepsy, Cataracts, and Profound Developmental Delay

Author

Kelly Schoch, Linyan Meng, Szabolcs Szelinger, David R. Bearden, Asbjorg Stray-Pedersen, Oyvind L. Busk, Nicholas Stong, Eriskay Liston, Ronald D. Cohn, Fernando Scaglia, Jill A. Rosenfeld, Jennifer Tarpinian, Cara M. Skraban, Matthew A. Deardorff, Jeremy N. Friedman, Zeynep Coban Akdemir, Nicole Walley, Mohamad A. Mikati, Peter G. Kranz, Joan Jasien, Allyn McConkie-Rosell, Marie McDonald, Stephanie Burns Wechsler, Michael Freemark, Sujay Kansagra, Sharon Freedman, Deeksha Bali, Francisca Millan, Sherri Bale, Stanley F. Nelson, Hane Lee, Naghmeh Dorrani, David B. Goldstein, Rui Xiao, Yaping Yang, Jennifer E. Posey, Julian A. Martinez-Agosto, James R. Lupski, Michael F. Wangler, Vandana Shashi, Wayne W. Grody, Samuel P. Strom, Eric Vilain, Joshua Deignan, Fabiola Quintero-Rivera, Sibel Kantarci, Sureni Mullegama, Sung-Hae Kang, Mercedes E. Alejandro, Carlos A. Bacino, Ashok Balasubramanyam, Lindsay C. Burrage, Gary D. Clark, William J. Craigen, Shweta U. Dhar, Lisa T. Emrick, Brett H. Graham, Neil A. Hanchard, Mahim Jain, Seema R. Lalani, Brendan H. Lee, Richard A. Lewis, Azamian S. Mashid, Paolo M. Moretti, Sarah K. Nicholas, Jordan S. Orange, Lorraine Potocki, Daryl A. Scott, Alyssa A. Tran, Hugo J. Bellen, Shinya Yamamoto, Christine M. Eng, Donna M. Muzny, Patricia A. Ward, Andrea L. Gropman, Yong-hui Jiang, Loren D.M. Pena, Rebecca C. Spillmann, Jennifer A. Sullivan, Nicole M. Walley, Alan H. Beggs, Lauren C. Briere, Cynthia M. Cooper, Laurel A. Donnell-Fink, Elizabeth L. Krieg, Joel B. Krier, Sharyn A. Lincoln, Joseph Loscalzo, Richard L. Maas, Calum A. MacRae, J. Carl Pallais, Lance H. Rodan, Edwin K. Silverman, Joan M. Stoler, David A. Sweetser, Chris A. Walsh, Cecilia Esteves, Ingrid A. Holm, Isaac S. Kohane, Paul Mazur, Alexa T. McCray, Matthew Might, Rachel B. Ramoni, Kimberly Splinter, David P. Bick, Camille L. Birch, Braden E. Boone, Donna M. Brown, Dan C. Dorset, Lori H. Handley, Howard J. Jacob, Angela L. Jones, Jozef Lazar, Shawn E. Levy, J. Scott Newberry, Molly C. Schroeder, Kimberly A. Strong, Elizabeth A. Worthey, Jyoti G. Dayal, David J. Eckstein, Sarah E. Gould, Ellen M. Howerton, Donna M. Krasnewich, Carson R. Loomis, Laura A. Mamounas, Teri A. Manolio, John J. Mulvihill, Anastasia L. Wise, Ariane G. Soldatos, Matthew Brush, Jean-Philippe F. Gourdine, Melissa Haendel, David M. Koeller, Jennifer E. Kyle, Thomas O. Metz, Katrina M. Waters, Bobbie-Jo M. Webb-Robertson, Euan A. Ashley, Jonathan A. Bernstein, Annika M. Dries, Paul G. Fisher, Jennefer N. Kohler, Daryl M. Waggott, Matt T. Wheeler, Patricia A. Zornio, Patrick Allard, Hayk Barseghyan, Esteban C. Dell’Angelica, Katrina M. Dipple, Matthew R. Herzog, Stan F. Nelson, Christina G.S. Palmer, Jeanette C. Papp, Janet S. Sinsheimer, Christopher J. Adams, Elizabeth A. Burke, Katherine R. Chao, Mariska Davids, David D. Draper, Tyra Estwick, Trevor S. Frisby, Kate Frost, Valerie Gartner, Rena A. Godfrey, Mitchell Goheen, Gretchen A. Golas, Mary 'Gracie' G. Gordon, Catherine A. Groden, Mary E. Hackbarth, Isabel Hardee, Jean M. Johnston, Alanna E. Koehler, Lea Latham, Yvonne L. Latour, C. Christopher Lau, Denise J. Levy, Adam P. Liebendorder, Ellen F. Macnamara, Valerie V. Maduro, Thomas C. Markello, Alexandra J. McCarty, Jennifer L. Murphy, Michele E. Nehrebecky, Donna Novacic, Barbara N. Pusey, Sarah Sadozai, Katherine E. Schaffer, Prashant Sharma, Sara P. Thomas, Nathanial J. Tolman, Camilo Toro, Zaheer M. Valivullah, Colleen E. Wahl, Mike Warburton, Alec A. Weech, Guoyun Yu, David R. Adams, William A. Gahl, May Christine V. Malicdan, Cynthia J. Tifft, Lynne A. Wolfe, Paul R. Lee, John H. Postlethwait, Monte Westerfield, Anna Bican, Rizwan Hamid, John H. Newman, John A. Phillips, Amy K. Robertson, and Joy D. Cogan

Subjects
Male, 0301 basic medicine, Microcephaly, Mutation, Missense, Biology, Cataract, Germline, 03 medical and health sciences, Neurodevelopmental disorder, Cataracts, Report, Intellectual Disability, Intellectual disability, Genetics, medicine, Humans, Missense mutation, Amino Acid Sequence, Child, Alleles, Genetics (clinical), Cerebral atrophy, Brain, Genetic Variation, Infant, medicine.disease, Magnetic Resonance Imaging, Neoplasm Proteins, Pedigree, 3. Good health, Repressor Proteins, Phenotype, 030104 developmental biology, Child, Preschool, Failure to thrive, Female, medicine.symptom, Spasms, Infantile, Genome-Wide Association Study
Abstract

Whole-exome sequencing (WES) has increasingly enabled new pathogenic gene variant identification for undiagnosed neurodevelopmental disorders and provided insights into both gene function and disease biology. Here, we describe seven children with a neurodevelopmental disorder characterized by microcephaly, profound developmental delays and/or intellectual disability, cataracts, severe epilepsy including infantile spasms, irritability, failure to thrive, and stereotypic hand movements. Brain imaging in these individuals reveals delay in myelination and cerebral atrophy. We observe an identical recurrent de novo heterozygous c.892C>T (p.Arg298Trp) variant in the nucleus accumbens associated 1 ( NACC1 ) gene in seven affected individuals. One of the seven individuals is mosaic for this variant. NACC1 encodes a transcriptional repressor implicated in gene expression and has not previously been associated with germline disorders. The probability of finding the same missense NACC1 variant by chance in 7 out of 17,228 individuals who underwent WES for diagnoses of neurodevelopmental phenotypes is extremely small and achieves genome-wide significance (p = 1.25 × 10 −14 ). Selective constraint against missense variants in NACC1 makes this excess of an identical missense variant in all seven individuals more remarkable. Our findings are consistent with a germline recurrent mutational hotspot associated with an allele-specific neurodevelopmental phenotype in NACC1 .

Published
2017
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4. A Syndromic Neurodevelopmental Disorder Caused by De Novo Variants in EBF3

Author

Hsiao-Tuan Chao, Mariska Davids, Elizabeth Burke, John G. Pappas, Jill A. Rosenfeld, Alexandra J. McCarty, Taylor Davis, Lynne Wolfe, Camilo Toro, Cynthia Tifft, Fan Xia, Nicholas Stong, Travis K. Johnson, Coral G. Warr, Shinya Yamamoto, David R. Adams, Thomas C. Markello, William A. Gahl, Hugo J. Bellen, Michael F. Wangler, May Christine V. Malicdan, Christopher J. Adams, Mercedes E. Alejandro, Patrick Allard, Euan A. Ashley, Carlos A. Bacino, Ashok Balasubramanyam, Hayk Barseghyan, Alan H. Beggs, Jonathan A. Bernstein, David P. Bick, Camille L. Birch, Braden E. Boone, Lauren C. Briere, Donna M. Brown, Matthew Brush, Lindsay C. Burrage, Katherine R. Chao, Gary D. Clark, Joy D. Cogan, Cynthia M. Cooper, William J. Craigen, Jyoti G. Dayal, Esteban C. Dell'Angelica, Shweta U. Dhar, Katrina M. Dipple, Laurel A. Donnell-Fink, Naghmeh Dorrani, Dan C. Dorset, David D. Draper, Annika M. Dries, David J. Eckstein, Lisa T. Emrick, Christine M. Eng, Cecilia Esteves, Tyra Estwick, Paul G. Fisher, Trevor S. Frisby, Kate Frost, Valerie Gartner, Rena A. Godfrey, Mitchell Goheen, Gretchen A. Golas, David B. Goldstein, Mary 'Gracie' G. Gordon, Sarah E. Gould, Jean-Philippe F. Gourdine, Brett H. Graham, Catherine A. Groden, Andrea L. Gropman, Mary E. Hackbarth, Melissa Haendel, Rizwan Hamid, Neil A. Hanchard, Lori H. Handley, Isabel Hardee, Matthew R. Herzog, Ingrid A. Holm, Ellen M. Howerton, Howard J. Jacob, Mahim Jain, Yong-hui Jiang, Jean M. Johnston, Angela L. Jones, Alanna E. Koehler, David M. Koeller, Isaac S. Kohane, Jennefer N. Kohler, Donna M. Krasnewich, Elizabeth L. Krieg, Joel B. Krier, Jennifer E. Kyle, Seema R. Lalani, Lea Latham, Yvonne L. Latour, C. Christopher Lau, Jozef Lazar, Brendan H. Lee, Hane Lee, Paul R. Lee, Shawn E. Levy, Denise J. Levy, Richard A. Lewis, Adam P. Liebendorder, Sharyn A. Lincoln, Carson R. Loomis, Joseph Loscalzo, Richard L. Maas, Ellen F. Macnamara, Calum A. MacRae, Valerie V. Maduro, Laura A. Mamounas, Teri A. Manolio, Azamian S. Mashid, Paul Mazur, Allyn McConkie-Rosell, Alexa T. McCray, Thomas O. Metz, Matthew Might, Paolo M. Moretti, John J. Mulvihill, Jennifer L. Murphy, Donna M. Muzny, Michele E. Nehrebecky, Stan F. Nelson, J. Scott Newberry, John H. Newman, Sarah K. Nicholas, Donna Novacic, Jordan S. Orange, J. Carl Pallais, Christina G.S. Palmer, Jeanette C. Papp, Loren D.M. Pena, John A. Phillips, Jennifer E. Posey, John H. Postlethwait, Lorraine Potocki, Barbara N. Pusey, Rachel B. Ramoni, Lance H. Rodan, Sarah Sadozai, Katherine E. Schaffer, Kelly Schoch, Molly C. Schroeder, Daryl A. Scott, Prashant Sharma, Vandana Shashi, Edwin K. Silverman, Janet S. Sinsheimer, Ariane G. Soldatos, Rebecca C. Spillmann, Kimberly Splinter, Joan M. Stoler, Kimberly A. Strong, Jennifer A. Sullivan, David A. Sweetser, Sara P. Thomas, Cynthia J. Tift, Nathanial J. Tolman, Alyssa A. Tran, Zaheer M. Valivullah, Eric Vilain, Daryl M. Waggott, Colleen E. Wahl, Nicole M. Walley, Chris A. Walsh, Mike Warburton, Patricia A. Ward, Katrina M. Waters, Bobbie-Jo M. Webb-Robertson, Alec A. Weech, Monte Westerfield, Matt T. Wheeler, Anastasia L. Wise, Lynne A. Worthe, Elizabeth A. Worthey, Yaping Yang, Guoyun Yu, and Patricia A. Zornio

Subjects
Central Nervous System, Male, 0301 basic medicine, Ataxia, Developmental Disabilities, Biology, Speech Disorders, 03 medical and health sciences, 0302 clinical medicine, Neurodevelopmental disorder, Intellectual Disability, Report, Intellectual disability, Genetics, medicine, Humans, Abnormalities, Multiple, Genitalia, Global developmental delay, Child, Transcription factor, Genetics (clinical), Zinc finger, Infant, Newborn, Infant, Zinc Fingers, Syndrome, medicine.disease, Hypotonia, 030104 developmental biology, Neurodevelopmental Disorders, Child, Preschool, Mutation, Muscle Hypotonia, Homeobox, Female, medicine.symptom, 030217 neurology & neurosurgery, Transcription Factors
Abstract

Early B cell factor 3 (EBF3) is a member of the highly evolutionarily conserved Collier/Olf/EBF (COE) family of transcription factors. Prior studies on invertebrate and vertebrate animals have shown that EBF3 homologs are essential for survival and that loss-of-function mutations are associated with a range of nervous system developmental defects, including perturbation of neuronal development and migration. Interestingly, aristaless-related homeobox (ARX), a homeobox-containing transcription factor critical for the regulation of nervous system development, transcriptionally represses EBF3 expression. However, human neurodevelopmental disorders related to EBF3 have not been reported. Here, we describe three individuals who are affected by global developmental delay, intellectual disability, and expressive speech disorder and carry de novo variants in EBF3. Associated features seen in these individuals include congenital hypotonia, structural CNS malformations, ataxia, and genitourinary abnormalities. The de novo variants affect a single conserved residue in a zinc finger motif crucial for DNA binding and are deleterious in a fly model. Our findings indicate that mutations in EBF3 cause a genetic neurodevelopmental syndrome and suggest that loss of EBF3 function might mediate a subset of neurologic phenotypes shared by ARX-related disorders, including intellectual disability, abnormal genitalia, and structural CNS malformations.

Published
2017
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5. Looking beyond the exome: a phenotype-first approach to molecular diagnostic resolution in rare and undiagnosed diseases

Author

Loren D.M. Pena, Yong-Hui Jiang, Kelly Schoch, Rebecca C. Spillmann, Nicole Walley, Nicholas Stong, Sarah Rapisardo Horn, Jennifer A. Sullivan, Allyn McConkie-Rosell, Sujay Kansagra, Edward C. Smith, Mays El-Dairi, Jane Bellet, Martha Ann Keels, Joan Jasien, Peter G. Kranz, Richard Noel, Shashi K. Nagaraj, Robert K. Lark, Daniel S.G. Wechsler, Daniela del Gaudio, Marco L. Leung, Laura G. Hendon, Collette C. Parker, Kelly L. Jones, David B. Goldstein, Vandana Shashi, Mercedes E. Alejandro, Carlos A. Bacino, Ashok Balasubramanyam, Bret L. Bostwick, Lindsay C. Burrage, Shan Chen, Gary D. Clark, William J. Craigen, Shweta U. Dhar, Lisa T. Emrick, Brett H. Graham, Neil A. Hanchard, Mahim Jain, Seema R. Lalani, Brendan H. Lee, Richard A. Lewis, Mashid S. Azamian, Paolo M. Moretti, Sarah K. Nicholas, Jordan S. Orange, Jennifer E. Posey, Lorraine Potocki, Jill A. Rosenfeld, Susan L. Samson, Daryl A. Scott, Alyssa A. Tran, Tiphanie P. Vogel, Jing Zhang, Hugo J. Bellen, Michael F. Wangler, Shinya Yamamoto, Christine M. Eng, Donna M. Muzny, Patricia A. Ward, Yaping Yang, Yong-hui Jiang, Nicole M. Walley, Alan H. Beggs, Lauren C. Briere, Cynthia M. Cooper, Laurel A. Donnell-Fink, Elizabeth L. Krieg, Joel B. Krier, Sharyn A. Lincoln, Joseph Loscalzo, Richard L. Maas, Calum A. MacRae, J. Carl Pallais, Lance H. Rodan, Edwin K. Silverman, Joan M. Stoler, David A. Sweetser, Chris A. Walsh, Cecilia Esteves, Ingrid A. Holm, Isaac S. Kohane, Paul Mazur, Alexa T. McCray, Matthew Might, Rachel B. Ramoni, Kimberly Splinter, David P. Bick, Camille L. Birch, Braden E. Boone, Donna M. Brown, Daniel C. Dorset, Lori H. Handley, Howard J. Jacob, Angela L. Jones, Jozef Lazar, Shawn E. Levy, J. Scott Newberry, Molly C. Schroeder, Kimberly A. Strong, Elizabeth A. Worthey, Jyoti G. Dayal, David J. Eckstein, Sarah E. Gould, Ellen M. Howerton, Donna M. Krasnewich, Laura A. Mamounas, Teri A. Manolio, John J. Mulvihill, Tiina K. Urv, Anastasia L. Wise, Ariane G. Soldatos, Matthew Brush, Jean-Philippe F. Gourdine, Melissa Haendel, David M. Koeller, Jennifer E. Kyle, Thomas O. Metz, Katrina M. Waters, Bobbie-Jo M. Webb-Robertson, Euan A. Ashley, Jonathan A. Bernstein, Annika M. Dries, Paul G. Fisher, Jennefer N. Kohler, Daryl M. Waggott, Matthew T. Wheeler, Patricia A. Zornio, Patrick Allard, Hayk Barseghyan, Esteban C. Dell'Angelica, Ani Dillon, Katrina M. Dipple, Naghmeh Dorrani, Emilie D. Douine, Ascia Eskin, Brent L. Fogel, Matthew R. Herzog, Hane Lee, Allen Lipson, Sandra K. Loo, Julian A. Martínez-Agosto, Stan F. Nelson, Christina G.S. Palmer, Jeanette C. Papp, Neil H. Parker, Janet S. Sinsheimer, Eric Vilain, Allison Zheng, Christopher J. Adams, Elizabeth A. Burke, Katherine R. Chao, Mariska Davids, David D. Draper, Tyra Estwick, Trevor S. Frisby, Kate Frost, Valerie Gartner, Rena A. Godfrey, Mitchell Goheen, Gretchen A. Golas, Mary G. Gordon, Catherine A. Groden, Mary E. Hackbarth, Isabel Hardee, Jean M. Johnston, Alanna E. Koehler, Lea Latham, Yvonne L. Latour, C. Christopher Lau, Denise J. Levy, Adam P. Liebendorfer, Ellen F. Macnamara, Valerie V. Maduro, Thomas C. Markello, Alexandra J. McCarty, Jennifer L. Murphy, Michele E. Nehrebecky, Donna Novacic, Barbara N. Pusey, Sarah Sadozai, Katherine E. Schaffer, Prashant Sharma, Sara P. Thomas, Nathanial J. Tolman, Camilo Toro, Zaheer M. Valivullah, Colleen E. Wahl, Mike Warburton, Alec A. Weech, Guoyun Yu, Andrea L. Gropman, David R. Adams, William A. Gahl, May Christine V. Malicdan, Cynthia J. Tifft, Lynne A. Wolfe, Paul R. Lee, John H. Postlethwait, Monte Westerfield, Anna Bican, Joy D. Cogan, Rizwan Hamid, John H. Newman, John A. Phillips, and Amy K. Robertson

Subjects
0301 basic medicine, Genotype, Biopsy, Infantile systemic hyalinosis, infantile neuroaxonal dystrophy, Biology, Polymorphism, Single Nucleotide, PLA2G6, Article, Frameshift mutation, whole exome sequencing, Infantile neuroaxonal dystrophy, 03 medical and health sciences, symbols.namesake, Rare Diseases, Exome Sequencing, medicine, Humans, Exome, Genetic Predisposition to Disease, Indel, Child, leukoencephalopathy with vanishing white matter, Genetics (clinical), Exome sequencing, Alleles, Genetic Association Studies, Genetics, Sanger sequencing, Whole genome sequencing, Whole Genome Sequencing, Genetic Diseases, Inborn, Infant, medicine.disease, ANTXR2, undiagnosed diseases network, 3. Good health, 030104 developmental biology, Phenotype, Molecular Diagnostic Techniques, Child, Preschool, EIF2B5, symbols, Female, infantile systemic hyalinosis
Abstract

PurposeTo describe examples of missed pathogenic variants on whole-exome sequencing (WES) and the importance of deep phenotyping for further diagnostic testing.MethodsGuided by phenotypic information, three children with negative WES underwent targeted single-gene testing.ResultsIndividual 1 had a clinical diagnosis consistent with infantile systemic hyalinosis, although WES and a next-generation sequencing (NGS)-based ANTXR2 test were negative. Sanger sequencing of ANTXR2 revealed a homozygous single base pair insertion, previously missed by the WES variant caller software. Individual 2 had neurodevelopmental regression and cerebellar atrophy, with no diagnosis on WES. New clinical findings prompted Sanger sequencing and copy number testing of PLA2G6. A novel homozygous deletion of the noncoding exon 1 (not included in the WES capture kit) was detected, with extension into the promoter, confirming the clinical suspicion of infantile neuroaxonal dystrophy. Individual 3 had progressive ataxia, spasticity, and magnetic resonance image changes of vanishing white matter leukoencephalopathy. An NGS leukodystrophy gene panel and WES showed a heterozygous pathogenic variant in EIF2B5; no deletions/duplications were detected. Sanger sequencing of EIF2B5 showed a frameshift indel, probably missed owing to failure of alignment.ConclusionThese cases illustrate potential pitfalls of WES/NGS testing and the importance of phenotype-guided molecular testing in yielding diagnoses.

Published
2017

6. MARRVEL: Integration of Human and Model Organism Genetic Resources to Facilitate Functional Annotation of the Human Genome

Author

Julia Wang, Rami Al-Ouran, Yanhui Hu, Seon-Young Kim, Ying-Wooi Wan, Michael F. Wangler, Shinya Yamamoto, Hsiao-Tuan Chao, Aram Comjean, Stephanie E. Mohr, Norbert Perrimon, Zhandong Liu, Hugo J. Bellen, Christopher J. Adams, David R. Adams, Mercedes E. Alejandro, Patrick Allard, Euan A. Ashley, Mashid S. Azamian, Carlos A. Bacino, Ashok Balasubramanyam, Hayk Barseghyan, Alan H. Beggs, Jonathan A. Bernstein, Anna Bican, David P. Bick, Camille L. Birch, Braden E. Boone, Lauren C. Briere, Donna M. Brown, Matthew Brush, Elizabeth A. Burke, Lindsay C. Burrage, Katherine R. Chao, Gary D. Clark, Joy D. Cogan, Cynthia M. Cooper, William J. Craigen, Mariska Davids, Jyoti G. Dayal, Esteban C. Dell’Angelica, Shweta U. Dhar, Katrina M. Dipple, Laurel A. Donnell-Fink, Naghmeh Dorrani, Daniel C. Dorset, David D. Draper, Annika M. Dries, David J. Eckstein, Lisa T. Emrick, Christine M. Eng, Cecilia Esteves, Tyra Estwick, Paul G. Fisher, Trevor S. Frisby, Kate Frost, William A. Gahl, Valerie Gartner, Rena A. Godfrey, Mitchell Goheen, Gretchen A. Golas, David B. Goldstein, Mary G. Gordon, Sarah E. Gould, Jean-Philippe F. Gourdine, Brett H. Graham, Catherine A. Groden, Andrea L. Gropman, Mary E. Hackbarth, Melissa Haendel, Rizwan Hamid, Neil A. Hanchard, Lori H. Handley, Isabel Hardee, Matthew R. Herzog, Ingrid A. Holm, Ellen M. Howerton, Howard J. Jacob, Mahim Jain, Yong-hui Jiang, Jean M. Johnston, Angela L. Jones, Alanna E. Koehler, David M. Koeller, Isaac S. Kohane, Jennefer N. Kohler, Donna M. Krasnewich, Elizabeth L. Krieg, Joel B. Krier, Jennifer E. Kyle, Seema R. Lalani, Lea Latham, Yvonne L. Latour, C. Christopher Lau, Jozef Lazar, Brendan H. Lee, Hane Lee, Paul R. Lee, Shawn E. Levy, Denise J. Levy, Richard A. Lewis, Adam P. Liebendorfer, Sharyn A. Lincoln, Carson R. Loomis, Joseph Loscalzo, Richard L. Maas, Ellen F. Macnamara, Calum A. MacRae, Valerie V. Maduro, May Christine V. Malicdan, Laura A. Mamounas, Teri A. Manolio, Thomas C. Markello, Paul Mazur, Alexandra J. McCarty, Allyn McConkie-Rosell, Alexa T. McCray, Thomas O. Metz, Matthew Might, Paolo M. Moretti, John J. Mulvihill, Jennifer L. Murphy, Donna M. Muzny, Michele E. Nehrebecky, Stan F. Nelson, J. Scott Newberry, John H. Newman, Sarah K. Nicholas, Donna Novacic, Jordan S. Orange, J. Carl Pallais, Christina G.S. Palmer, Jeanette C. Papp, Loren D.M. Pena, John A. Phillips, Jennifer E. Posey, John H. Postlethwait, Lorraine Potocki, Barbara N. Pusey, Rachel B. Ramoni, Amy K. Robertson, Lance H. Rodan, Jill A. Rosenfeld, Sarah Sadozai, Katherine E. Schaffer, Kelly Schoch, Molly C. Schroeder, Daryl A. Scott, Prashant Sharma, Vandana Shashi, Edwin K. Silverman, Janet S. Sinsheimer, Ariane G. Soldatos, Rebecca C. Spillmann, Kimberly Splinter, Joan M. Stoler, Nicholas Stong, Kimberly A. Strong, Jennifer A. Sullivan, David A. Sweetser, Sara P. Thomas, Cynthia J. Tifft, Nathanial J. Tolman, Camilo Toro, Alyssa A. Tran, Zaheer M. Valivullah, Eric Vilain, Daryl M. Waggott, Colleen E. Wahl, Nicole M. Walley, Chris A. Walsh, Mike Warburton, Patricia A. Ward, Katrina M. Waters, Bobbie-Jo M. Webb-Robertson, Alec A. Weech, Monte Westerfield, Matthew T. Wheeler, Anastasia L. Wise, Lynne A. Wolfe, Elizabeth A. Worthey, Yaping Yang, Guoyun Yu, and Patricia A. Zornio

Subjects
0301 basic medicine, ved/biology.organism_classification_rank.species, Computational biology, Biology, Genome, Article, 03 medical and health sciences, 0302 clinical medicine, Databases, Genetic, Genetics, Humans, Model organism, FlyBase : A Database of Drosophila Genes & Genomes, Gene, Genetics (clinical), ved/biology, Genome, Human, Genetic Variation, Molecular Sequence Annotation, 030104 developmental biology, DECIPHER, Human genome, Zebrafish Information Network genome database, 030217 neurology & neurosurgery, Software
Abstract

One major challenge encountered with interpreting human genetic variants is the limited understanding of the functional impact of genetic alterations on biological processes. Furthermore, there remains an unmet demand for an efficient survey of the wealth of information on human homologs in model organisms across numerous databases. To efficiently assess the large volume of publically available information, it is important to provide a concise summary of the most relevant information in a rapid user-friendly format. To this end, we created MARRVEL (model organism aggregated resources for rare variant exploration). MARRVEL is a publicly available website that integrates information from six human genetic databases and seven model organism databases. For any given variant or gene, MARRVEL displays information from OMIM, ExAC, ClinVar, Geno2MP, DGV, and DECIPHER. Importantly, it curates model organism-specific databases to concurrently display a concise summary regarding the human gene homologs in budding and fission yeast, worm, fly, fish, mouse, and rat on a single webpage. Experiment-based information on tissue expression, protein subcellular localization, biological process, and molecular function for the human gene and homologs in the seven model organisms are arranged into a concise output. Hence, rather than visiting multiple separate databases for variant and gene analysis, users can obtain important information by searching once through MARRVEL. Altogether, MARRVEL dramatically improves efficiency and accessibility to data collection and facilitates analysis of human genes and variants by cross-disciplinary integration of 18 million records available in public databases to facilitate clinical diagnosis and basic research.

Published
2017

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