期刊
HUMAN MOLECULAR GENETICS
卷 12, 期 8, 页码 925-935出版社
OXFORD UNIV PRESS
DOI: 10.1093/hmg/ddg097
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Kindler syndrome is a rare autosomal-recessive genodermatosis characterized by bullous poikiloderma with photosensitivity. We report the localization to chromosome 20p12.3 by homozygosity mapping and the identification of a new gene, which we propose to name kindlerin. We found four different homozygous mutations in four consanguineous families from North Africa and Senegal; three are expected to lead to premature stop codons and truncated proteins and the fourth involves a splice site. We were unable to identify a mutation in kindlerin in a fifth consanguineous family from Algeria with a similar phenotype and in which the patient was homozygous for the markers in the 20p12.3 interval. The kindlerin protein contains several domains which are shared by a diverse group of peripheral membrane proteins that function as membrane-cytoskeleton linkers: two regions homologous to band 4.1 domain of which one includes a FERM domain with a NPKY sequence motif, and a third region with a PH or pleckstrin homology domain. Kindlerin might be involved in the bidirectional signaling between integrin molecules in the. membrane and the cytoskeleton, and-could be involved in cell adhesion processes via integrin signaling.
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