llar 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 COL3A1 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 COL3A1.蛋白別名為：COL3A1; Collagen alpha-1(III) chain;基因ID為：1281；蛋白質ID:P02461
