The Enzyme Database

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Accepted name: GDP-mannose:di-myo-inositol-1,3′-phosphate β-1,2-mannosyltransferase
Reaction: 2 GDP-α-D-mannose + bis(myo-inositol) 1,3′-phosphate = 2 GDP + 2-O-(β-D-mannosyl-(1→2)-β-D-mannosyl)-bis(myo-inositol) 1,3′-phosphate (overall reaction)
(1a) GDP-α-D-mannose + bis(myo-inositol) 1,3′-phosphate = GDP + 2-O-(β-D-mannosyl)-bis(myo-inositol) 1,3′-phosphate
(1b) GDP-α-D-mannose + 2-O-(β-D-mannosyl)-bis(myo-inositol) 1,3′-phosphate = GDP + 2-O-(β-D-mannosyl-(1→2)-β-D-mannosyl)-bis(myo-inositol) 1,3′-phosphate
Other name(s): MDIP synthase
Systematic name: GDP-α-D-mannose:bis(myo-inositol)-1,3′-phosphate 2-β-D-mannosyltransferase
Comments: The enzyme from the hyperthermophilic bacterium Thermotoga maritima is involved in the synthesis of the solutes 2-O-(β-D-mannosyl)-bis(myo-inositol) 1,3′-phosphate and 2-O-(β-D-mannosyl-(1→2)-β-D-mannosyl)-bis(myo-inositol) 1,3′-phosphate.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Rodrigues, M.V., Borges, N., Almeida, C.P., Lamosa, P. and Santos, H. A unique β-1,2-mannosyltransferase of Thermotoga maritima that uses di-myo-inositol phosphate as the mannosyl acceptor. J. Bacteriol. 191 (2009) 6105–6115. [PMID: 19648237]
[EC created 2019]

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