the alpha 3 ( vi ) collagen gene is the fifth extracellular matrix gene to be localized to 2q , as four other extracellular matrix genes -- i.e. , the alpha 1 ( iii ) and alpha 2 ( v ) collagen genes , the elastin gene , and the fibronectin gene -- have been previously mapped to the distal region of the long arm of chromosome 2 .
C0015350
extracellular matrix
C0013765
elastin