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  Domain Name: MPN_like
Mpr1p, Pad1p N-terminal (MPN) domains with catalytic isopeptidase activity (metal-binding). This family contains archaeal and bacterial MPN (also known as Mov34, PAD-1, JAMM, JAB, MPN+)-like domains. These domains contain the signature JAB1/MPN/Mov34 metalloenzyme (JAMM) motif, EXnHS/THX7SXXD, which is involved in zinc ion coordination and provides the active site for isopeptidase activity for the release of ubiquitin from ubiquitinated proteins (thus having deubiquitinating (DUB) activity) that are tagged for degradation. The JAMM proteins likely hydrolyze ubiquitin conjugates in a manner similar to thermolysin, in which the zinc-polarized aqua ligand serves as the nucleophile, compared with the classical DUBs that do so with a cysteine residue in the active site.
No pairwise interactions are available for this conserved domain.

Total Mutations Found: 0
Total Disease Mutations Found: 0
This domain occurred 3 times on human genes (4 proteins).




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Range on the Protein:  

   Protein ID            Protein Position

Domain Position:  


Feature Name:Total Found:
MPN+ (JAMM) motif
Zinc-binding site













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Please Cite: Peterson, T.A., Adadey, A., Santana-Cruz ,I., Sun, Y., Winder A, Kann, M.G., (2010) DMDM: Domain Mapping of Disease Mutations. Bioinformatics 26 (19), 2458-2459.

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