Alpha 2 collagen type I,Alpha 2 type I collagen,Alpha 2 type I procollagen,Alpha 2(I) collagen,Alpha 2(I) procollagen,Alpha-2 type I collagen,CO1A2,COL1A2,Collagen alpha 2(I) chain,Collagen alpha-2(I) chain,Collagen I alpha 2 polypeptide,Collagen of skin tendon and bone alpha 2 chain,Collagen type I alpha 2,OI4,Osteogenesis imperfecta type IV,Type I procollagen