{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T21:24:27Z","timestamp":1791926667947,"version":"4.3.4"},"reference-count":38,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2004,11,2]],"date-time":"2004-11-02T00:00:00Z","timestamp":1099353600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001711","name":"Swiss National Science Foundation","doi-asserted-by":"crossref","award":["3100A0-100485"],"award-info":[{"award-number":["3100A0-100485"]}],"id":[{"id":"10.13039\/501100001711","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American J of Med Genetics Pt A"],"published-print":{"date-parts":[[2004,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Bruck syndrome (BS) is a recessively\u2010inherited phenotypic disorder featuring the unusual combination of skeletal changes resembling osteogenesis imperfecta (OI) with congenital contractures of the large joints. Clinical heterogeneity is apparent in cases reported thus far. While the genes coding for collagen 1 chains are unaffected in BS, there is biochemical evidence for a defect in the hydroxylation of lysine residues in collagen 1 telopeptides. One BS locus has been mapped at 17p12, but more recently, two mutations in the lysyl hydroxylase 2 gene (<jats:italic>PLOD2<\/jats:italic>, 3q23\u2010q24) have been identified in BS, showing genetic heterogeneity. The proportion of BS cases linked to 17p22 (BS type 1) or caused by mutations in <jats:italic>PLOD2<\/jats:italic> (BS type 2) is still uncertain, and phenotypic correlations are lacking. We report on a boy who had congenital contractures with pterygia at birth and severe OI\u2010like osteopenia and multiple fractures. His urine contained high amounts of hydroxyproline but low amounts of collagen crosslinks degradation products; and he was shown to be homozygous for a novel mutation leading to an Arg598His substitution in PLOD2. The mutation is adjacent to the two mutations previously reported (Gly601Val and Thr608Ile), suggesting a functionally important hotspot in <jats:italic>PLOD2<\/jats:italic>. The combination of pterygia with bone fragility, as illustrated by this case, is difficult to explain; it suggests that telopeptide lysyl hydroxylation must be involved in prenatal joint formation and morphogenesis. Collagen degradation products in urine and mutation analysis of <jats:italic>PLOD2<\/jats:italic> may be used to diagnose BS and differentiate it from OI. \u00a9 2004 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/ajmg.a.30231","type":"journal-article","created":{"date-parts":[[2004,11,12]],"date-time":"2004-11-12T23:48:10Z","timestamp":1100303290000},"page":"115-120","source":"Crossref","is-referenced-by-count":148,"title":["Phenotypic and molecular characterization of Bruck syndrome (osteogenesis imperfecta with contractures of the large joints) caused by a recessive mutation in <i>PLOD2<\/i>"],"prefix":"10.1002","volume":"131A","author":[{"given":"Russia","family":"Ha\u2010Vinh","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasemin","family":"Alanay","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruud 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