Abstract:
:In most genome-wide linkage studies, implication of a causative disease gene often requires years of expanding the study to more families and finer mapping of the initially described region. Even after such efforts, unobtainable sample sizes can be required to make statistically meaningful conclusions about a single gene. Here we demonstrate that by adding a layer of functional biology to statistical genetic results, this process can be accelerated. The diabetes susceptibility locus (chromosome 18p11) was systematically dissected by using a cell-based secretion assay and RNA interference, and we identified laminin alpha1 to have a role in pancreatic beta cell secretion. The screen was extended to identify laminin receptor 1 as a functional partner in regards to beta cell function. Our approach can potentially be widely used in the setting of high-throughput cellular screening of other loci to identify candidate genes.
journal_name
Proc Natl Acad Sci U S Aauthors
Antinozzi PA,Garcia-Diaz A,Hu C,Rothman JEdoi
10.1073/pnas.0510521103keywords:
subject
Has Abstractpub_date
2006-03-07 00:00:00pages
3698-703issue
10eissn
0027-8424issn
1091-6490pii
0510521103journal_volume
103pub_type
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