Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
20
pubmed:dateCreated
2003-10-3
pubmed:abstractText
A primary feature of age-related macular degeneration (AMD) is the presence of extracellular deposits between the retinal pigment epithelium (RPE) and underlying Bruch's membrane, leading to RPE dysfunction, photoreceptor death and severe visual loss. AMD accounts for about 50% of blind registrations in Western countries and is a common, genetically complex disorder. Very little is known regarding its molecular basis. Late-onset retinal degeneration (L-ORD) is an autosomal dominant disorder with striking clinical and pathological similarity to AMD. Here we show that L-ORD is genetically heterogeneous and that a proposed founder mutation in the CTRP5 (C1QTNF5) gene, which encodes a novel short-chain collagen, changes a highly conserved serine to arginine (Ser163Arg) in 7/14 L-ORD families and 0/1000 control individuals. The mutation occurs in the gC1q domain of CTRP5 and results in abnormal high molecular weight aggregate formation which may alter its higher-order structure and interactions. These results indicate a novel disease mechanism involving abnormal adhesion between RPE and Bruch's membrane.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0964-6906
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2657-67
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:12944416-Age of Onset, pubmed-meshheading:12944416-Aged, pubmed-meshheading:12944416-Aged, 80 and over, pubmed-meshheading:12944416-Aging, pubmed-meshheading:12944416-Amino Acid Sequence, pubmed-meshheading:12944416-Blotting, Western, pubmed-meshheading:12944416-Chromosome Mapping, pubmed-meshheading:12944416-Collagen, pubmed-meshheading:12944416-Female, pubmed-meshheading:12944416-Genetic Markers, pubmed-meshheading:12944416-Haplotypes, pubmed-meshheading:12944416-Humans, pubmed-meshheading:12944416-Immunohistochemistry, pubmed-meshheading:12944416-Macular Degeneration, pubmed-meshheading:12944416-Male, pubmed-meshheading:12944416-Middle Aged, pubmed-meshheading:12944416-Models, Genetic, pubmed-meshheading:12944416-Models, Molecular, pubmed-meshheading:12944416-Molecular Sequence Data, pubmed-meshheading:12944416-Mutation, pubmed-meshheading:12944416-Pedigree, pubmed-meshheading:12944416-Phenotype, pubmed-meshheading:12944416-Protein Structure, Tertiary, pubmed-meshheading:12944416-Retina, pubmed-meshheading:12944416-Retinal Degeneration, pubmed-meshheading:12944416-Sequence Homology, Amino Acid, pubmed-meshheading:12944416-Time Factors
pubmed:year
2003
pubmed:articleTitle
Mutation in a short-chain collagen gene, CTRP5, results in extracellular deposit formation in late-onset retinal degeneration: a genetic model for age-related macular degeneration.
pubmed:affiliation
MRC Human Genetics Unit, Western General Hospital, Edinburgh, UK.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't