MMP-12 protein has significant elastolytic activity and may contribute to tissue damage and remodeling.Its substrate preferences include preference for leucine at the P1' site and aromatic/hydrophobic residues at the P1 site, and preference for small hydrophobic residues such as alanine at the P3 site.MMP-12 Protein, Mouse (HEK293, His) is the recombinant mouse-derived MMP-12 protein, expressed by HEK293 , with C-6*His labeled tag.