Type I Collagen Gene Promoter

The type I collagen gene promoter refers to the regulatory DNA sequences upstream of the type I collagen genes, primarily COL1A1 and COL1A2, which control their transcription. These promoters are essential for tissue-specific and regulated expression of type I collagen, the most abundant protein in vertebrate connective tissues. Key regulatory elements include binding sites for SP1, NFκB, STAT6, and AP2. Dysregulation leads to conditions like fibrosis or genetic disorders such as osteogenesis imperfecta or Ehlers-Danlos syndrome. Mutations or polymorphisms in promoter regions can alter gene expression, such as a common polymorphism that increases osteoporosis risk. The promoter is regulated by factors like TGF-beta, IL-4 (inducing activation via STAT6), and interferon-gamma (downregulating activity).

Other names

COL1A1 promoterCOL1A2 promoter