A disintegrin and metalloproteinase with thrombospondin motifs 7
Domain
The spacer domain and the TSP type-1 domains are important for a tight interaction with the extracellular matrix.
The conserved cysteine present in the cysteine-switch motif binds the catalytic zinc ion, thus inhibiting the enzyme. The dissociation of the cysteine from the zinc ion upon the activation-peptide release activates the enzyme.
Function
Metalloprotease that may play a role in the degradation of COMP.
Post-translational modifications
N-glycosylated. Can be O-fucosylated by POFUT2 on a serine or a threonine residue found within the consensus sequence C1-X(2)-(S/T)-C2-G of the TSP type-1 repeat domains where C1 and C2 are the first and second cysteine residue of the repeat, respectively. Fucosylated repeats can then be further glycosylated by the addition of a beta-1,3-glucose residue by the glucosyltransferase, B3GALTL. Fucosylation mediates the efficient secretion of ADAMTS family members. Can also be C-glycosylated with one or two mannose molecules on tryptophan residues within the consensus sequence W-X-X-W of the TPRs. N- and C-glycosylations can also facilitate secretion. O-glycosylated proteoglycan. Contains chondroitin sulfate.
May be cleaved by a furin endopeptidase (By similarity). The precursor is sequentially processed.
Tissue Specificity
Expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas. Detected in meniscus, bone, tendon, cartilage, synovium, fat and ligaments.
Cellular localization
- Secreted
- Extracellular space
- Extracellular matrix
- Also found associated with the external cell surface.
Alternative names
A disintegrin and metalloproteinase with thrombospondin motifs 7, ADAM-TS 7, ADAM-TS7, ADAMTS-7, COMPase, ADAMTS7