Case report: A novel PTCH1 frameshift mutation leading to nevoid basal cell carcinoma syndrome
FRONTIERS IN MEDICINE(2024)
摘要
A patient presenting with several basal cell carcinomas, pigmented nevi, and developmental defects was diagnosed with nevoid basal cell carcinoma syndrome. Gene panel sequencing and Sanger sequencing were used to identify a novel heterozygous frameshift mutation, c.1312dupA:p.Ser438Lysfs, in exon 9 of PTCH1. I-Tasser and PyMol analyses indicated that the mutated protein patched homolog 1 (PTCH1) lacked 12 transmembrane domains and the intracellular and extracellular rings of ECD2 compared with the wild-type protein, resulting in a remarkably different structure from that of the wild-type protein. This case extends our knowledge of the mutation spectrum of NBCCS.
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关键词
novel,frameshift mutation,nevoid basal cell carcinoma syndrome,PTCH1,case report
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