Novel Transglutaminase 1 Gene Mutations (R348X/Y365D) in a Japanese Family with Lamellar Ichthyosis
نویسندگان
چکیده
منابع مشابه
Transglutaminase-1 Mutations in Omani Families with Lamellar Ichthyosis
OBJECTIVE To determine the molecular basis of familial ichthyosis in three Omani families. SUBJECTS AND METHODS Nine patients from three consanguineous families, A, B, and C, were born with typical features of lamellar ichthyosis subtype including collodion membrane and maintained ectropion, and epidermal scaling through their childhood. The 4 patients from family B had more severe symptoms r...
متن کاملLamellar ichthyosis is genetically heterogeneous--cases with normal keratinocyte transglutaminase.
We recently identified mutations of the keratinocyte transglutaminase gene as a cause of lamellar ichthyosis. In this study we analyzed two sporadic cases of lamellar ichthyosis. Transglutaminase activity measured in membrane extracts from cultured differentiating keratinocytes was within the range observed in normal individuals. Western blot and Northern blot analysis revealed normal size and ...
متن کاملA Novel Mutation in the Transglutaminase-1 Gene in an Autosomal Recessive Congenital Ichthyosis Patient
Structure-function implication on a novel homozygous Trp250/Gly mutation of transglutaminase-1 (TGM1) observed in a patient of autosomal recessive congenital ichthyosis is invoked from a bioinformatics analysis. Structural consequences of this mutation are hypothesized in comparison to homologous enzyme human factor XIIIA accepted as valid in similar structural analysis and are projected as gui...
متن کاملMutations in Transglutaminase 1 Gene in Autosomal Recessive Congenital Ichthyosis in Egyptian Families
Autosomal recessive congenital ichthyosis (ARCI) is a rare heterogeneous keratinization disorder of the skin. It is clinically divided into 2 subtypes, lamellar ichthyosis (LI) and congenital ichthyosiformis erythroderma (CIE). We investigated forty-three ARCI Egyptian individuals in 16 severe LI, and 10 CIE families. We identified 5 alleles in two Egyptian families as having intron-5/exon-6 sp...
متن کاملTransglutaminase 1 mutations in lamellar ichthyosis. Loss of activity due to failure of activation by proteolytic processing.
Lamellar ichthyosis is a congenital recessive skin disorder characterized by generalized scaling and hyperkeratosis. It is caused by mutations in the TGM1 gene that encodes the transglutaminase 1 (TGase 1) enzyme, which is critical for the assembly of the cornified cell envelope in terminally differentiating keratinocytes. TGase 1 is a complex enzyme existing as both cytosolic and membrane-boun...
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ژورنال
عنوان ژورنال: Journal of Investigative Dermatology
سال: 2003
ISSN: 0022-202X
DOI: 10.1046/j.1523-1747.2003.19522.x