A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS)

"A disintegrin and metalloproteinase with thrombospondin motifs" (ADAMTS) refers to a family of secreted, zinc-dependent metalloproteinases structurally distinct from other metalloproteinases due to the presence of thrombospondin type 1 repeats (TSRs) in addition to a disintegrin-like and metalloprotease domain[1][2][6]. Humans express at least 19 ADAMTS genes, whose protein products are primarily involved in extracellular matrix remodeling and substrate-specific proteolysis of large proteoglycans such as aggrecan and versican. ADAMTS proteins are grouped into subfamilies by sequence similarity and substrate preference (notably the aggrecanase subfamily: ADAMTS1, -4, -5, -8, -15). Different ADAMTS family members are implicated in diverse biological processes, including development, angiogenesis, and the pathogenesis of diseases such as arthritis (via cartilage degradation), cancer, atherosclerosis, and bleeding/thrombotic disorders (notably the ADAMTS13-mediated cleavage of von Willebrand factor)[1][3][6][7]. **Key distinction:** The ADAMTS family is structurally related to—but molecularly distinct from—membrane-bound ADAMs due to the absence of a transmembrane region and the presence of multiple TSR domains. This family plays crucial roles in regulating tissue morphogenesis and disease via the controlled degradation of extracellular matrix components[1][6].

Other names

ADAMTS proteinsADAMTS proteasesA disintegrin-like and metalloprotease domain with thrombospondin type 1 motifs

Inhibition of protease catalytic activity (including zinc-chelation or blocking the active site); prevention of extracellular matrix degradation (e.g., aggrecanase inhibition in cartilage); restoration of normal substrate cleavage balance[6].