Title
Diverse mutations in the gene for cartilage oligomeric matrix protein in the pseudoachondroplasiamultiple epiphyseal dysplasia disease spectrum Diverse mutations in the gene for cartilage oligomeric matrix protein in the pseudoachondroplasiamultiple epiphyseal dysplasia disease spectrum
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
New York, N.Y. ,
Subject
Human medicine
Source (journal)
The American journal of human genetics. - New York, N.Y.
Volume/pages
62(1998) :2 , p. 311-319
ISSN
0002-9297
ISI
000072416000014
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
Pseudoachondroplasia (PSACH) and multiple epiphyseal dysplasia (MED) are autosomal dominant osteochondrodysplasias that result in mild to severe short-limb dwarfism and early-onset osteoarthrosis. PSACH and some forms of MED result from mutations in the gene for cartilage oligomeric matrix protein (COMP; OMIM 600310). We report the identification of COMP mutations in an additional 14 families with PSACH or MED phenotypes. Mutations predicted to result in singleamino acid deletions or substitutions, all in the region of the COMP gene encoding the calmodulin-like repeat elements, were identified in patients with moderate to severe PSACH. We also identified within this domain a missense mutation that produced MED Fairbank. In two families, one with mild PSACH and the second with a form of MED, we identified different substitutions for a residue in the carboxyl-terminal globular region of COMP. Both the clinical presentations of these two families and the identification of COMP-gene mutations provide evidence of phenotypic overlap between PSACH and MED. These data also reveal a role for the carboxyl-terminal domain in the structure and/or function of COMP.
E-info
https://repository.uantwerpen.be/docman/iruaauth/2ed4e7/21732a97568.pdf
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