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Title: Mutations causing medullary cystic kidney disease type 1 (MCKD1) lie in a large VNTR in MUC1 missed by massively parallel sequencing
Authors: Kirby, Andrew;Gnirke, Andreas;Jaffe, David B.;Barešová, Veronika;Pochet, Nathalie;Blumenstiel, Brendan;Ye, Chun;Aird, Daniel;Stevens, Christine;Robinson, James T.;Cabili, Moran N.;Gat-Viks, Irit;Kelliher, Edward;Daza, Riza;DeFelice, Matthew;Hůlková, Helena;Sovová, Jana;Vylet’al, Petr;Antignac, Corinne;Guttman, Mitchell;Handsaker, Robert E.;Perrin, Danielle;Steelman, Scott;Sigurdsson, Snaevar;Scheinman, Steven J.;Sougnez, Carrie;Cibulskis, Kristian;Parkin, Melissa;Green, Todd;Rossin, Elizabeth;Zody, Michael C.;Xavier, Ramnik J.;Pollak, Martin R.;Alper, Seth L.;Lindblad-Toh, Kerstin;Gabriel, Stacey;Hart, P. Suzanne;Regev, Aviv;Nusbaum, Chad;Kmoch, Stanislav;Bleyer, Anthony J.;Lander, Eric S.;Daly, Mark J.
Year: 2014
Description: While genetic lesions responsible for some Mendelian disorders can be rapidly discovered through massively parallel sequencing (MPS) of whole genomes or exomes, not all diseases readily yield to such efforts. We describe the illustrative case of the simple Mendelian disorder medullary cystic kidney disease type 1 (MCKD1), mapped more than a decade ago to a 2-Mb region on chromosome 1. Ultimately, only by cloning, capillary sequencing, and de novo assembly, we found that each of six MCKD1 families harbors an equivalent, but apparently independently arising, mutation in sequence dramatically underrepresented in MPS data: the insertion of a single C in one copy (but a different copy in each family) of the repeat unit comprising the extremely long (~1.5-5 kb), GC-rich (>80%), coding VNTR in the mucin 1 gene. The results provide a cautionary tale about the challenges in identifying genes responsible for Mendelian, let alone more complex, disorders through MPS.
Standard no: Kirby, A., A. Gnirke, D. B. Jaffe, V. Barešová, N. Pochet, B. Blumenstiel, C. Ye, et al. 2014. “Mutations causing medullary cystic kidney disease type 1 (MCKD1) lie in a large VNTR in MUC1 missed by massively parallel sequencing.” Nature genetics 45 (3): 299-303. doi:10.1038/ng.2543.
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