un blog de genética para médicos
Noticias, análisis y guías para médicos sobre cómo usar los avances de la Genética en su práctica
11 mayo 2013
Nunca fue fácil
Nat Genet. 2013 Mar;45(3):299-303. doi: 10.1038/ng.2543. Epub 2013 Feb 10.
Mutations causing medullary cystic kidney disease type 1 lie in a large VNTR in MUC1 missed by massively parallel sequencing.
Kirby A, Gnirke A, Jaffe DB, Barešová V, Pochet N, Blumenstiel B, Ye C, Aird D, Stevens C, Robinson JT, Cabili MN, Gat-Viks I, Kelliher E, Daza R, DeFelice M, Hůlková H, Sovová J, Vylet'al P, Antignac C, Guttman M, Handsaker RE, Perrin D, Steelman S, Sigurdsson S, Scheinman SJ, Sougnez C, Cibulskis K, Parkin M, Green T, Rossin E, Zody MC, Xavier RJ, Pollak MR, Alper SL, Lindblad-Toh K, Gabriel S, Hart PS, Regev A, Nusbaum C, Kmoch S, Bleyer AJ, Lander ES, Daly MJ.
Source
Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA.
Abstract
Although genetic lesions responsible for some mendelian disorders can be rapidly discovered through massively parallel sequencing 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 did we find that each of six families with MCKD1 harbors an equivalent but apparently independently arising mutation in sequence markedly under-represented in massively parallel sequencing data: the insertion of a single cytosine 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 variable-number tandem repeat (VNTR) sequence in the MUC1 gene encoding mucin 1. These results provide a cautionary tale about the challenges in identifying the genes responsible for mendelian, let alone more complex, disorders through massively parallel sequencing.
PMID: 23396133 [PubMed - in process]
Etiquetas:
Bioinformática,
conceptual,
Enfermedades,
enfermedades de difícil diagnóstico,
genomas individuales,
NGS,
servicios actuales,
variaciones normales
01 mayo 2013
HGP10 Symposium Agenda
The Genomics Landscape a Decade after the Human Genome Project
Ruth L. Kirschstein Auditorium
Natcher Conference Center
National Institutes of Health
April 25, 2013
HGP10 Symposium Agenda
29 abril 2013
26 abril 2013
Algunos tweets de la GET Conference 013
Algunos tweets de la GET Conference 013.
Collins: only 250 of some 5,000 known Mendelian disorders have some sort of therapy. #HGP10
Birney; 99% genome is within 1.7 kb of a 'biochemical event'; 95% is within 8 kb of a footprint/bound motif #ENCODE #HGP10
ST: 3 million completely novel variants discovered in recent WGS of just 15 African pygmies (published 2012 @CellCellPress) #HGP10
Birney: around 2000, textbooks still talked about 100,000 total genes. Even early @ensembl estimate of 38K was met with shock/horror
As @jasonbobe pointed out, today is day 60yrs ago that Watson & Crick Nature paper on structure of DNA published (w/o peer review). #GET2013
Eric Green (@NHGRI): when HGP started, we used to send DNA sequence around by fax. #HGP10 #DNA60
Collins: only 250 of some 5,000 known Mendelian disorders have some sort of therapy. #HGP10
Birney; 99% genome is within 1.7 kb of a 'biochemical event'; 95% is within 8 kb of a footprint/bound motif #ENCODE #HGP10
ST: 3 million completely novel variants discovered in recent WGS of just 15 African pygmies (published 2012 @CellCellPress) #HGP10
Birney: around 2000, textbooks still talked about 100,000 total genes. Even early @ensembl estimate of 38K was met with shock/horror
As @jasonbobe pointed out, today is day 60yrs ago that Watson & Crick Nature paper on structure of DNA published (w/o peer review). #GET2013
Eric Green (@NHGRI): when HGP started, we used to send DNA sequence around by fax. #HGP10 #DNA60
25 abril 2013
Ovejas fluorecentes.uy
Ovejas transgénicas abren nueva era de investigación en salud - Subrayado
Verde flúo - La Diaria
Científicos uruguayos produjeron nueve ovejas transgénicas - Prensa Latina
Nacen las primeras nueve ovejas transgénicas uruguayas - El Espectador
Vea a las ovejas transgénicas uruguayas - BBC Mundo
Verde flúo - La Diaria
Científicos uruguayos produjeron nueve ovejas transgénicas - Prensa Latina
Nacen las primeras nueve ovejas transgénicas uruguayas - El Espectador
Vea a las ovejas transgénicas uruguayas - BBC Mundo
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