Journal
PLOS GENETICS
Volume 6, Issue 2, Pages -Publisher
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pgen.1000836
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Funding
- NIH
- VA Merit
- Foundation Fighting Blindness
- Macula Vision Research Foundation
- Ruth and Milton Steinbach Fund
- Research to Prevent Blindness
- BWF Clinical Scientist Award in Translational Research
- American Health Assistance Foundation
- National Natural Science Foundation of China
- Department of Science and Technology of Sichuan Provincial Government of China
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A common haplotype on 10q26 influences the risk of age-related macular degeneration (AMD) and encompasses two genes, LOC387715 and HTRA1. Recent data have suggested that loss of LOC387715, mediated by an insertion/deletion (in/del) that destabilizes its message, is causally related with the disorder. Here we show that loss of LOC387715 is insufficient to explain AMD susceptibility, since a nonsense mutation (R38X) in this gene that leads to loss of its message resides in a protective haplotype. At the same time, the common disease haplotype tagged by the in/del and rs11200638 has an effect on the transcriptional upregulation of the adjacent gene, HTRA1. These data implicate increased HTRA1 expression in the pathogenesis of AMD and highlight the importance of exploring multiple functional consequences of alleles in haplotypes that confer susceptibility to complex traits.
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