{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,31]],"date-time":"2025-10-31T01:31:11Z","timestamp":1761874271551,"version":"build-2065373602"},"reference-count":14,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T00:00:00Z","timestamp":1761782400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100015269","name":"Hungarian Government","doi-asserted-by":"publisher","award":["EFOP-3.6.1-16-2016-00008","GINOP-2.3.2-15-2016-00039"],"award-info":[{"award-number":["EFOP-3.6.1-16-2016-00008","GINOP-2.3.2-15-2016-00039"]}],"id":[{"id":"10.13039\/501100015269","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Malignant melanoma is a complex malignancy with genetic, environmental, and lifestyle factors in its etiology. While germline variants in melanoma predisposition genes have been described, many patients remain genetically unexplained after panel testing. We previously analyzed a Hungarian melanoma cohort (n = 17), identifying variants in predisposing or susceptibility genes in 58.82% of patients. For individuals negative on this melanoma-specific panel, we expanded testing to a 19-gene panel associated with multiple cancer types. Next-generation sequencing was performed, followed by Sanger sequencing for confirmation. Variants were classified according to ACMG guidelines. In a 58-year-old female patient with a history of primary cutaneous melanoma, we identified a novel heterozygous frameshift variant in the tumor suppressor gene OBSCN (c.21322_21323insCTGG, p.G7108AfsTer10; NM_001386125.1). This insertion introduces a premature stop codon in exon 89 within the immunoglobulin-like domain, predicting protein truncation. Classified as likely pathogenic (PVS1, PM2), the variant is absent from population databases. To date, somatic OBSCN mutations have been reported in melanoma. This first report of a germline OBSCN frameshift variant in melanoma expands the genetic landscape of melanoma predisposition and suggests that OBSCN may represent a candidate gene contributing to melanoma risk.<\/jats:p>","DOI":"10.3390\/ijms262110553","type":"journal-article","created":{"date-parts":[[2025,10,31]],"date-time":"2025-10-31T01:23:59Z","timestamp":1761873839000},"page":"10553","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Novel Germline Frameshift Variant in the Tumor Suppressor Gene OBSCN in a Melanoma Patient"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-0824-1047","authenticated-orcid":false,"given":"Barbara Anna","family":"Bokor","sequence":"first","affiliation":[{"name":"Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aliasgari","family":"Abdolreza","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary"},{"name":"HUN-REN-SZTE Functional Clinical Genetics Research Group, University of Szeged, 6720 Szeged, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3662-0837","authenticated-orcid":false,"given":"Margit","family":"P\u00e1l","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary"},{"name":"HUN-REN-SZTE Functional Clinical Genetics Research Group, University of Szeged, 6720 Szeged, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5570-6831","authenticated-orcid":false,"given":"Zita","family":"Battyani","sequence":"additional","affiliation":[{"name":"M\u00f3r Kaposi Teaching Hospital, 7400 Kaposv\u00e1r, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0730-714X","authenticated-orcid":false,"given":"M\u00e1rta","family":"Sz\u00e9ll","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary"},{"name":"HUN-REN-SZTE Functional Clinical Genetics Research Group, University of Szeged, 6720 Szeged, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8576-7953","authenticated-orcid":false,"given":"Nikoletta","family":"Nagy","sequence":"additional","affiliation":[{"name":"Department of Medical Genetics, University of Szeged, 6720 Szeged, Hungary"},{"name":"HUN-REN-SZTE Functional Clinical Genetics Research Group, University of Szeged, 6720 Szeged, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,10,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1097\/CM9.0000000000003416","article-title":"Recent global patterns in skin cancer incidence, mortality, and prevalence","volume":"138","author":"Wang","year":"2025","journal-title":"Chin. 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