Synonyms : 7S Collagen, Collagen Type IV, alpha1 Chain, Collagen Type IV, alpha1 Subunit, Collagen Type IV, alpha2 Chain, Collagen Type IV, alpha2 Subunit, Collagen alpha1(IV), Procollagen Type IV, Type IV (Basement Membrane) Collagen, Type IV Collagen, Collagen, 7S