The Enzyme Database

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Accepted name: molybdenum cofactor guanylyltransferase
Reaction: GTP + molybdenum cofactor = diphosphate + guanylyl molybdenum cofactor
For diagram of MoCo biosynthesis, click here
Glossary: molybdenum cofactor = MoCo = MoO2(OH)Dtpp-mP = {[(5aR,8R,9aR)-2-amino-4-oxo-6,7-bis(sulfanyl-κS)-1,5,5a,8,9a,10-hexahydro-4H-pyrano[3,2-g]pteridin-8-yl]methyl dihydrogenato(2-) phosphate}(dioxo)molybdate
Other name(s): MobA; MoCo guanylyltransferase
Systematic name: GTP:molybdenum cofactor guanylyltransferase
Comments: Catalyses the guanylation of the molybdenum cofactor. This modification occurs only in prokaryotes.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Lake, M.W., Temple, C.A., Rajagopalan, K.V. and Schindelin, H. The crystal structure of the Escherichia coli MobA protein provides insight into molybdopterin guanine dinucleotide biosynthesis. J. Biol. Chem. 275 (2000) 40211–40217. [DOI] [PMID: 10978347]
2.  Temple, C.A. and Rajagopalan, K.V. Mechanism of assembly of the bis(molybdopterin guanine dinucleotide)molybdenum cofactor in Rhodobacter sphaeroides dimethyl sulfoxide reductase. J. Biol. Chem. 275 (2000) 40202–40210. [DOI] [PMID: 10978348]
3.  Guse, A., Stevenson, C.E., Kuper, J., Buchanan, G., Schwarz, G., Giordano, G., Magalon, A., Mendel, R.R., Lawson, D.M. and Palmer, T. Biochemical and structural analysis of the molybdenum cofactor biosynthesis protein MobA. J. Biol. Chem. 278 (2003) 25302–25307. [DOI] [PMID: 12719427]
[EC created 2011]

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