TIMP metallopeptidase inhibitor 3; Complexes with metalloproteinases (such as collagenases) and irreversibly inactivates them. May form part of a tissue- specific acute response to remodeling stimuli. Known to act on MMP-1, MMP-2, MMP-3, MMP-7, MMP-9, MMP-13, MMP-14 and MMP-15 (211 aa)