Journal
HUMAN MUTATION
Volume 37, Issue 3, Pages 246-249Publisher
WILEY-BLACKWELL
DOI: 10.1002/humu.22940
Keywords
next-generation sequencing; ADIPOR1; retina; obesity; fatty acid
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Funding
- NIH [R01EY022356, P30EY002520]
- NIH Shared Instrument Grant [1S10RR026550]
- National Eye Institute [R01EY022356, P30EY002520]
- Foundation Fighting Blindness [BR-GE-0613-0618-BCM]
- Research to Prevent Blindness, N.Y
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Retinitis pigmentosa (RP) is a genetically heterogeneous retinal disorder. Despite the numerous genes associated with RP already identified, the genetic basis remains unknown in a substantial number of patients and families. In this study, we performed whole-exome sequencing to investigate the molecular basis of a syndromic RP case that cannot be solved by mutations in known disease-causing genes. After applying a series of variant filtering strategies, we identified an apparently homozygous frameshift mutation, c.31delC (p.Q11Rfs*24) in the ADIPOR1 gene. The reported phenotypes of Adipor1-null mice contain retinal dystrophy, obesity, and behavioral abnormalities, which highly mimic those in the syndromic RP patient. We further confirmed ADIPOR1 retina expression by immunohistochemistry. Our results established ADIPOR1 as a novel disease-causing gene for syndromic RP and highlight the importance of fatty acid transport in the retina. (C) 2015 Wiley Periodicals, Inc.
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