Collagen Type I Alpha 1 Chain
OI4
Collagen, Type I, Alpha 1
Collagen Alpha-1(I) Chain
Alpha-1 Type I Collagen
Collagen Of Skin, Tendon And Bone, Alpha-1 Chain
Collagen Alpha-1(I) Chain Preproprotein
Type I Procollagen Alpha 1 Chain
Collagen Alpha 1 Chain Type I
Pro-Alpha-1 Collagen Type 1
Collagen Col1-ColIII-1
Collagen Col1-ColIII-2
Alpha1(I) Procollagen
Type I Proalpha 1
EDSARTH1
CAFYD
EDSC
OI1
OI2
OI3
This gene encodes the pro-alpha1 chains of type I collagen whose triple helix comprises two alpha1 chains and one alpha2 chain. Type I is a fibril-forming collagen found in most connective tissues and is abundant in bone, cornea, dermis and tendon. Mutations in this gene are associated with osteogenesis imperfecta types I-IV, Ehlers-Danlos syndrome type VIIA, Ehlers-Danlos syndrome Classical type, Caffey Disease and idiopathic osteoporosis. Reciprocal translocations between chromosomes 17 and 22, where this gene and the gene for platelet-derived growth factor beta are located, are associated with a particular type of skin tumor called dermatofibrosarcoma protuberans, resulting from unregulated expression of the growth factor. Two transcripts, resulting from the use of alternate polyadenylation signals, have been identified for this gene. [provided by R. Dalgleish, Feb 2008]
Forensic Context
A study in human post-mortem heart tissue demonstrated that high-quality mRNA for the COL1A1 can be extracted from right ventricle samples and its expression levels, quantified via real-time PCR, remain stable and independent of the post-mortem interval in samples with non-degraded RNA [Partemi et al. DOI:10.1016/j.forsciint.2010.07.005]. A study in mice demonstrated that hepatic expression of COL1A1 was dynamically altered in response to long-term high-fat diet and ethanol feeding, showing ethanol concentration-specific up-regulation at 13 weeks and significant down-regulation at 26 and 39 weeks with progressive liver injury [Liang et al. DOI:10.3390/Ijms241914564].