The domain structures of human MMP-12. The latent form of human MMP-12(top), the active form of MMP-12 with molecular weight 45 KDa (middle), and the catalytic domain of MMP-12 with molecular weight 22 KDa (bottom) are illustrated. The precise amino acid residues are known from protein sequencing.
Song et al. BMC Cardiovascular Disorders 2013 13:34 doi:10.1186/1471-2261-13-34