Function: Cleaves the membrane-bound precursor of TNF-alpha at '76-Ala-|-Val-77' to its mature soluble form. Responsible for the proteolytical release of soluble JAM3 from endothelial cells surface. Responsible for the proteolytic release of several other cell-surface proteins, including heparin-binding epidermal growth-like factor, ephrin-A2 and for constitutive and regulated alpha-secretase cleavage of amyloid precursor protein (APP). Contributes to the normal cleavage of the cellular prion protein. Involved in the cleavage of the adhesion molecule L1 at the cell surface and in released membrane vesicles, suggesting a vesicle-based protease activity. Controls also the proteolytic processing of Notch and mediates lateral inhibition during neurogenesis. Responsible for the FasL ectodomain shedding and for the generation of the remnant ADAM10-processed FasL (FasL APL) transmembrane form. Also cleaves the ectodomain of the integral membrane proteins CORIN and ITM2B. May regulate the EFNA5-EPHA3 signaling. Ref.4 Ref.5 Ref.7 Ref.8 Ref.10 Ref.11 Ref.14 Ref.16
Catalytic activity: Endopeptidase of broad specificity.
Cofactor: Binds 1 zinc ion
By similarity.
Subunit structure: Interacts with EPHA2
By similarity. Forms a ternary EFNA5-EPHA3-ADAM10 complex mediating EFNA5 extracellular domain shedding by ADAM10 which regulates the EFNA5-EPHA3 complex internalization and function, the cleavage occurs in trans, with ADAM10 and its substrate being on the membranes of opposing cells. Ref.8
Subcellular location: Cell membrane; Single-pass type I membrane protein. Endomembrane system; Single-pass type I membrane protein. Note: Is localized in the plasma membrane but is predominantly expressed in the Golgi apparatus and in released membrane vesicles derived likely from the Golgi.
Tissue specificity: Expressed in spleen, lymph node, thymus, peripheral blood leukocyte, bone marrow, cartilage, chondrocytes and fetal liver. Ref.3 Ref.6
Induction: In osteoarthritis affected-cartilage.
Domain: 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.The Cys-rich region C-terminal to the disintegrin domain functions as a substrate-recognition module, it recognizes the EFNA5-EPHA3 Complex but not the individual proteins
By similarity.
Post-translational modification: The precursor is cleaved by a furin endopeptidase
By similarity.
Sequence similarities: Contains 1 disintegrin domain.Contains 1 peptidase M12B domain.
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