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  Domain Name: MPP_SoxB_N
Thermus thermophilus SoxB and related proteins, N-terminal metallophosphatase domain. SoxB (sulfur oxidation protein B) is a periplasmic thiosulfohydrolase and an essential component of the sulfur oxidation pathway in archaea and bacteria. SoxB has a dinuclear manganese cluster and is thought to catalyze the release of sulfate from a protein-bound cysteine S-thiosulfonate. SoxB is expressed from the sox (sulfur oxidation) gene cluster, which encodes 15 other sox genes, and has two domains, an N-terminal metallophosphatase domain and a C-terminal 5'-nucleotidase domain. SoxB binds the SoxYZ complex and is thought to function as a sulfate-thiohydrolase. SoxB is closely related to the UshA, YchR, and CpdB proteins, all of which have the same two-domain architecture. The N-terminal metallophosphatase domain belongs to a large superfamily of distantly related metallophosphatases (MPPs) that includes: Mre11/SbcD-like exonucleases, Dbr1-like RNA lariat debranching enzymes, YfcE-like phosphodiesterases, purple acid phosphatases (PAPs), YbbF-like UDP-2,3-diacylglucosamine hydrolases, and acid sphingomyelinases (ASMases). MPPs are functionally diverse, but all share a conserved domain with an active site consisting of two metal ions (usually manganese, iron, or zinc) coordinated with octahedral geometry by a cage of histidine, aspartate, and asparagine residues. The conserved domain is a double beta-sheet sandwich with a di-metal active site made up of residues located at the C-terminal side of the sheets. This domain is thought to allow for productive metal coordination.
No pairwise interactions are available for this conserved domain.

Total Mutations Found: 2
Total Disease Mutations Found: 1
This domain occurred 1 times on human genes (3 proteins).


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Range on the Protein:  

   Protein ID            Protein Position

Domain Position:  

Feature Name:Total Found:
active site
metal 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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