2V53, 3DMW, 4AE2, 4AEJ, 4AK3, 4GYX
Collagen alpha-1(III) chain is a protein that in humans is encoded by the COL3A1 gene, which is located on chromosome 2.
Collagen alpha-1(III) chain is a precursor to collagen III, a protein that is found in extensible connective tissues such as skin, lung, and the vascular system, frequently in association with type I collagen. Although alternate transcripts have been detected for this gene, they are the result of mutations; these mutations alter splicing, often leading to the exclusion of multiple exons.