Collagen, Type III (COL3A1) Antibody – Mouse Monoclonal

This gene encodes the pro-alpha1 chains of type III collagen, a fibrillar collagen that is found in extensible connective tissues such as skin, lung, uterus, intestine and the vascular system, frequently in association with type I collagen. Mutations in this gene are associated with Ehlers-Danlos syndrome types IV, and with aortic and arterial aneurysms. Two transcripts, resulting from the use of alternate polyadenylation signals, have been identified for this gene. [provided by R. Dalgleish, Feb 2008]

CO3A1: Collagen type III occurs in most soft connective tissues along with type I collagen. Defects in COL3A1 are a cause of Ehlers-Danlos syndrome type 3 (EDS3); also known as benign hypermobility syndrome. EDS is a connective tissue disorder characterized by hyperextensible skin, atrophic cutaneous scars due to tissue fragility and joint hyperlaxity. EDS3 is a form of Ehlers-Danlos syndrome characterized by marked joint hyperextensibility without skeletal deformity. Defects in COL3A1 are the cause of Ehlers-Danlos syndrome type 4 (EDS4). EDS is a connective tissue disorder characterized by hyperextensible skin, atrophic cutaneous scars due to tissue fragility and joint hyperlaxity. EDS4 is the most severe form of the disease. It is characterized by the joint and dermal manifestations as in other forms of the syndrome, characteristic facial features (acrogeria) in most patients, and by proneness to spontaneous rupture of bowel and large arteries. The vascular complications may affect all anatomical areas. Defects in COL3A1 are a cause of susceptibility to aortic aneurysm abdominal (AAA). AAA is a common multifactorial disorder characterized by permanent dilation of the abdominal aorta, usually due to degenerative changes in the aortic wall. Histologically, AAA is characterized by signs of chronic inflammation, destructive remodeling of the extracellular matrix, and depletion of vascular smooth muscle cells. Belongs to the fibrillar collagen family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Secreted; Motility/polarity/chemotaxis; Extracellular matrix; Secreted, signal peptide; Cell adhesion

Chromosomal Location of Human Ortholog: 2q31

Cellular Component: extracellular matrix; extracellular space; endoplasmic reticulum lumen; extracellular region; collagen type III

Molecular Function: integrin binding; protein binding; extracellular matrix structural constituent; platelet-derived growth factor binding; metal ion binding; SMAD binding

Biological Process: integrin-mediated signaling pathway; skin development; platelet activation; axon guidance; receptor-mediated endocytosis; extracellular matrix organization and biogenesis; collagen fibril organization; wound healing; heart development; cell-matrix adhesion; negative regulation of immune response; positive regulation of Rho protein signal transduction; collagen catabolic process; extracellular matrix disassembly; response to radiation; gut development; response to mechanical stimulus; response to cytokine stimulus; transforming growth factor beta receptor signaling pathway; fibril organization and biogenesis; cerebral cortex development; peptide cross-linking; skeletal development; aging

Disease: Ehlers-danlos Syndrome, Type Iv, Autosomal Dominant; Ehlers-danlos Syndrome, Type Iii