{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T13:45:23Z","timestamp":1791121523122,"version":"4.1.0"},"reference-count":36,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2014,9,5]],"date-time":"2014-09-05T00:00:00Z","timestamp":1409875200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Polish National Centre for Research and Development","award":["LIDER\/008\/431\/L-4\/12\/NCBR\/2013"],"award-info":[{"award-number":["LIDER\/008\/431\/L-4\/12\/NCBR\/2013"]}]},{"DOI":"10.13039\/501100004281","name":"Polish National Science Centre","doi-asserted-by":"crossref","award":["UMO-2011-03-D-NZ2-06136"],"award-info":[{"award-number":["UMO-2011-03-D-NZ2-06136"]}],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Birth Defects Research"],"published-print":{"date-parts":[[2014,10]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Split\u2010hand\/foot malformation (SHFM) is a clinically and genetically heterogeneous limb abnormality characterized by the absence or hypoplasia of the central rays of the autopod. SHFM1, which is one out of seven known SHFM loci, maps to 7q21.2\u2010q21.3. SHFM1 is usually inherited as an autosomal dominant trait with reduced penetrance, although recessive inheritance has been described for a single family carrying a homozygous <jats:italic>DLX5<\/jats:italic> missense variant. In most cases, SHFM1 results from heterozygous deletions encompassing <jats:italic>DLX5<\/jats:italic>\/<jats:italic>DLX6<\/jats:italic> genes or from inversions and translocations separating the genes from their limb specific enhancers. Recently, a single Chinese family with dominant SHFM1 was shown to result from a heterozygous <jats:italic>DLX5<\/jats:italic> missense mutation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this study, we report on four male individuals from two unrelated Polish families (one sporadic and one familial case) presenting with isolated SHFM. We tested both probands for known molecular causes of SHFM, including <jats:italic>TP63<\/jats:italic>, <jats:italic>WNT10B<\/jats:italic>, <jats:italic>DLX5<\/jats:italic> mutations and copy number changes using 1.4 M array CGH.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Sanger sequencing of <jats:italic>DLX5<\/jats:italic> revealed a novel heterozygous nonsense mutation c.G115T(p.E39X) in both index patients. Segregation studies demonstrated that the variant was present in all affected family members but also in three apparently healthy relatives (two females and one male).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This is the first report of a heterozygous <jats:italic>DLX5<\/jats:italic> nonsense mutation resulting in incompletely penetrant autosomal dominant isolated SHFM1. Data shown here provides further evidence for the contribution of <jats:italic>DLX5<\/jats:italic> point mutations to the development of ectrodactyly and suggest the possibility of sex\u2010related segregation distortion with an excess of affected males. <jats:italic>Birth Defects Research (Part A) 100:764\u2013771, 2014<\/jats:italic>. \u00a9 2014 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/bdra.23298","type":"journal-article","created":{"date-parts":[[2014,9,5]],"date-time":"2014-09-05T06:44:41Z","timestamp":1409899481000},"page":"764-771","source":"Crossref","is-referenced-by-count":18,"title":["Heterozygous <i>DLX5<\/i> nonsense mutation associated with isolated split\u2010hand\/foot malformation with reduced penetrance and variable expressivity in two unrelated families"],"prefix":"10.1002","volume":"100","author":[{"given":"Anna","family":"Sowi\u0144ska\u2010Seidler","sequence":"first","affiliation":[{"name":"Department of Medical Genetics Poznan University of Medical Sciences  Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Magdalena","family":"Badura\u2010Stronka","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics Poznan University of Medical Sciences  Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna","family":"Latos\u2010Biele\u0144ska","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics Poznan University of Medical Sciences  Poland"},{"name":"NZOZ Center for Medical Genetics GENESIS Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Micha\u0142","family":"Stronka","sequence":"additional","affiliation":[{"name":"Transplantology, General and Vascular Surgery Unit Heliodor Swiecicki Clinical Hospital at the Poznan University of Medical Sciences  Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aleksander","family":"Jamsheer","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics Poznan University of Medical Sciences  Poland"},{"name":"NZOZ Center for Medical Genetics GENESIS Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,9,5]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1242\/dev.126.17.3795"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ceb.2004.03.003"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.a.31304"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1101\/gr.133546.111"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/hmg\/dds336"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.a.33504"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1086\/323123"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.cellbio.17.1.87"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/hmg\/ddg090"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.a.31244"},{"key":"e_1_2_6_12_1","unstructured":"Exome Variant Server NHLBI GO Exome Sequencing Project (ESP) Seattle WA. 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