Novel transglutaminase 1 mutations in patients affected by 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 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...
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 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 کاملLamellar Ichthyosis with Rickets
Lamellar ichthyosis (LI) is a rare genetic disorder with autosomal recessive inheritance. It is equally seen in both sexes and usually manifests at birth. The child presents as a collodion baby. The erythema is minimal or absent; but when present, it is maximum on the face. The scaling is generalized, accentuated on lower extremities and flexural areas. Rickets is a condition in which there is ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cell Death & Disease
سال: 2012
ISSN: 2041-4889
DOI: 10.1038/cddis.2012.152