NTR domain, TIMP-like subfamily; TIMPs, or tissue inibitors of metalloproteases, are essential regulators of extracellular matrix turnover and remodeling. They form complexes with matrix metalloproteases (MMPs) and inactivate them irreversibly by non-covalently binding their active zinc-binding sites. This group contains domains similar to the TIMP NTR domain, which binds MMPs. Members of this group may or may not function as MMP inhibitors.