{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T04:13:37Z","timestamp":1781324017056,"version":"3.54.1"},"reference-count":13,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2022,9,7]],"date-time":"2022-09-07T00:00:00Z","timestamp":1662508800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81972038"],"award-info":[{"award-number":["81972038"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Molec Gen &amp; Gen Med"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Distal arthrogryposis (DA) is a group of congenital autosomal\u2010dominant disorders secondary to defects in joint and muscle function, characterized by multiple joint contractures of the hands and feet. DA can be divided into 10 types according to clinical features. DA has been confirmed to be caused by mutations in genes encoding components of the contractile apparatus of skeletal muscle fibers, such as troponin I2 (<jats:italic>TNNI2<\/jats:italic>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this study, we report a three\u2010generation DA family belonging to the DA2B type. The clinical characteristics of affected members are genetically stable and consistent, with severe deformities in hands and feet, and two affected adults had short stature. None exhibited facial abnormalities. Blood from three affected and three healthy members were collected for whole\u2010exome sequencing and Sanger sequencing.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A missense variant in <jats:italic>TNNI2<\/jats:italic> (NM_003282.4: c.525G&gt;T: p.K175N) was successfully identified, which resulted in the substitution of amino acid at position 175 of TNNI2 from lysine to asparagines.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The variant c.525G&gt;T in <jats:italic>TNNI2<\/jats:italic> explains the cause of DA in the family. This variant was identified in Chinese people for the first time, and the same variant had been reported in another study but no description of clinical symptoms. Our study comprehensively characterized the c.525G&gt;T variant in <jats:italic>TNNI2<\/jats:italic>.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mgg3.2042","type":"journal-article","created":{"date-parts":[[2022,9,7]],"date-time":"2022-09-07T10:40:10Z","timestamp":1662547210000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A <i>TNNI2<\/i> variant c.525G&gt;T causes distal arthrogryposis in a Chinese family"],"prefix":"10.1002","volume":"10","author":[{"given":"Yue","family":"Li","sequence":"first","affiliation":[{"name":"Guangzhou Institute of Pediatrics Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health  Guangzhou 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