Abstract:
:Peutz-Jeghers syndrome (PJS) is an autosomal-dominant inherited disorder characterized by mucocutaneous pigmentation, hamartomatous polyposis of the gastrointestinal tract, and an increased risk for the development of both gastrointestinal and extraintestinal malignancies. Germline mutation of the STK11 gene, which encodes a serine-threonine kinase, is responsible for PJS. We collected blood samples from a Chinese PJS family consisting of a total of four individuals (one male and three females) including one PJS patient. The whole coding region of STK11 was amplified by polymerase chain reaction and products analyzed by direct sequencing. Molecular analysis of the STK11 gene in this case of PJS revealed a substitution of thymine 217 for adenine (C.217T > A) in exon 1, resulting in a change of codon 73 from cysteine to serine (C73S). The point mutation was not found in normal individuals in this PJS family or in 100 control individuals. The results presented here enlarge the spectrum of mutations of the STK11 gene by identifying a de novo mutation in a PJS patient and further support the hypothesis that STK11 mutations are disease-causing mutations for PJS.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Gao Y,Zhang FM,Huang S,Wang X,Zhang P,Huang XD,Ji GZ,Fan ZNdoi
10.1007/s10620-009-0837-xsubject
Has Abstractpub_date
2010-04-01 00:00:00pages
1032-6issue
4eissn
0163-2116issn
1573-2568journal_volume
55pub_type
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