3 results on '"van Dam, Teunis J. P."'
Search Results
2. TMEM107 recruits ciliopathy proteins to subdomains of the ciliary transition zone and causes Joubert syndrome
- Author
-
Lambacher, Nils J., Bruel, Ange-Line, van Dam, Teunis J. P., Szymańska, Katarzyna, Slaats, Gisela G., Kuhns, Stefanie, McManus, Gavin J., Kennedy, Julie E., Gaff, Karl, Wu, Ka Man, van der Lee, Robin, Burglen, Lydie, Doummar, Diane, Rivière, Jean-Baptiste, Faivre, Laurence, Attié-Bitach, Tania, Saunier, Sophie, Curd, Alistair, Peckham, Michelle, Giles, Rachel H., Johnson, Colin A., Huynen, Martijn A., Thauvin-Robinet, Christel, and Blacque, Oliver E.
- Abstract
The transition zone (TZ) ciliary subcompartment is thought to control cilium composition and signalling by facilitating a protein diffusion barrier at the ciliary base. TZ defects cause ciliopathies such as Meckel–Gruber syndrome (MKS), nephronophthisis (NPHP) and Joubert syndrome (JBTS). However, the molecular composition and mechanisms underpinning TZ organization and barrier regulation are poorly understood. To uncover candidate TZ genes, we employed bioinformatics (coexpression and co-evolution) and identified TMEM107 as a TZ protein mutated in oral–facial–digital syndrome and JBTS patients. Mechanistic studies in Caenorhabditis elegans showed that TMEM-107 controls ciliary composition and functions redundantly with NPHP-4 to regulate cilium integrity, TZ docking and assembly of membrane to microtubule Y-link connectors. Furthermore, nematode TMEM-107 occupies an intermediate layer of the TZ-localized MKS module by organizing recruitment of the ciliopathy proteins MKS-1, TMEM-231 (JBTS20) and JBTS-14 (TMEM237). Finally, MKS module membrane proteins are immobile and super-resolution microscopy in worms and mammalian cells reveals periodic localizations within the TZ. This work expands the MKS module of ciliopathy-causing TZ proteins associated with diffusion barrier formation and provides insight into TZ subdomain architecture.
- Published
- 2016
- Full Text
- View/download PDF
3. An siRNA-based functional genomics screen for the identification of regulators of ciliogenesis and ciliopathy genes.
- Author
-
Wheway G, Schmidts M, Mans DA, Szymanska K, Nguyen TT, Racher H, Phelps IG, Toedt G, Kennedy J, Wunderlich KA, Sorusch N, Abdelhamed ZA, Natarajan S, Herridge W, van Reeuwijk J, Horn N, Boldt K, Parry DA, Letteboer SJF, Roosing S, Adams M, Bell SM, Bond J, Higgins J, Morrison EE, Tomlinson DC, Slaats GG, van Dam TJP, Huang L, Kessler K, Giessl A, Logan CV, Boyle EA, Shendure J, Anazi S, Aldahmesh M, Al Hazzaa S, Hegele RA, Ober C, Frosk P, Mhanni AA, Chodirker BN, Chudley AE, Lamont R, Bernier FP, Beaulieu CL, Gordon P, Pon RT, Donahue C, Barkovich AJ, Wolf L, Toomes C, Thiel CT, Boycott KM, McKibbin M, Inglehearn CF, Stewart F, Omran H, Huynen MA, Sergouniotis PI, Alkuraya FS, Parboosingh JS, Innes AM, Willoughby CE, Giles RH, Webster AR, Ueffing M, Blacque O, Gleeson JG, Wolfrum U, Beales PL, Gibson T, Doherty D, Mitchison HM, Roepman R, and Johnson CA
- Subjects
- Abnormalities, Multiple, Animals, Caenorhabditis elegans genetics, Caenorhabditis elegans metabolism, Caenorhabditis elegans ultrastructure, Cerebellar Diseases genetics, Cerebellum abnormalities, Cilia metabolism, Cilia pathology, Ciliary Motility Disorders metabolism, Ciliary Motility Disorders pathology, Cytoskeletal Proteins, Databases, Genetic, Ellis-Van Creveld Syndrome genetics, Eye Abnormalities genetics, Genetic Predisposition to Disease, Genome-Wide Association Study, HEK293 Cells, High-Throughput Nucleotide Sequencing, Humans, Kidney Diseases, Cystic genetics, Membrane Proteins deficiency, Membrane Proteins genetics, Mice, Inbred C57BL, Mice, Knockout, Mutation, Phenotype, Pregnancy Proteins genetics, Pregnancy Proteins metabolism, Proteins genetics, Proteins metabolism, Reproducibility of Results, Retina abnormalities, Suppressor Factors, Immunologic genetics, Suppressor Factors, Immunologic metabolism, Transfection, Zebrafish genetics, Zebrafish metabolism, Cilia genetics, Ciliary Motility Disorders genetics, Genetic Markers, Genetic Testing methods, Genomics methods, Photoreceptor Cells metabolism, Photoreceptor Cells ultrastructure, RNA Interference
- Abstract
Defects in primary cilium biogenesis underlie the ciliopathies, a growing group of genetic disorders. We describe a whole-genome siRNA-based reverse genetics screen for defects in biogenesis and/or maintenance of the primary cilium, obtaining a global resource. We identify 112 candidate ciliogenesis and ciliopathy genes, including 44 components of the ubiquitin-proteasome system, 12 G-protein-coupled receptors, and 3 pre-mRNA processing factors (PRPF6, PRPF8 and PRPF31) mutated in autosomal dominant retinitis pigmentosa. The PRPFs localize to the connecting cilium, and PRPF8- and PRPF31-mutated cells have ciliary defects. Combining the screen with exome sequencing data identified recessive mutations in PIBF1, also known as CEP90, and C21orf2, also known as LRRC76, as causes of the ciliopathies Joubert and Jeune syndromes. Biochemical approaches place C21orf2 within key ciliopathy-associated protein modules, offering an explanation for the skeletal and retinal involvement observed in individuals with C21orf2 variants. Our global, unbiased approaches provide insights into ciliogenesis complexity and identify roles for unanticipated pathways in human genetic disease.
- Published
- 2015
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.