The Enzyme Database

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Accepted name: molybdopterin molybdotransferase
Reaction: adenylyl-molybdopterin + molybdate = molybdenum cofactor + AMP
For diagram of MoCo biosynthesis, click here
Glossary: molybdopterin = H2Dtpp-mP = ((5aR,8R,9aR)-2-amino-6,7-dimercapto-4-oxo-4,5,5a,8,9a,10-hexahydro-1H-pyrano[3,2-g]pteridin-8-yl)methyl dihydrogen phosphate = [(5aR,8R,9aR)-2-amino-4-oxo-6,7-disulfanyl-1,5,5a,8,9a,10-hexahydro-4H-pyrano[3,2-g]pteridin-8-yl]methyl dihydrogen phosphate
molybdenum cofactor = MoCo = MoO2(OH)Dtpp-mP = {[(5aR,8R,9aR)-2-amino-4-oxo-6,7-di(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): MoeA; Cnx1 (ambiguous)
Systematic name: adenylyl-molybdopterin:molybdate molybdate transferase (AMP-forming)
Comments: Catalyses the insertion of molybdenum into the ene-dithiol group of molybdopterin. In eukaryotes this reaction is catalysed by the N-terminal domain of a fusion protein whose C-terminal domain catalyses EC, molybdopterin adenylyltransferase. Requires divalent cations such as Mg2+ or Zn2+ for activity.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Nichols, J.D. and Rajagopalan, K.V. In vitro molybdenum ligation to molybdopterin using purified components. J. Biol. Chem. 280 (2005) 7817–7822. [PMID: 15632135]
2.  Nichols, J.D., Xiang, S., Schindelin, H. and Rajagopalan, K.V. Mutational analysis of Escherichia coli MoeA: two functional activities map to the active site cleft. Biochemistry 46 (2007) 78–86. [PMID: 17198377]
3.  Llamas, A., Otte, T., Multhaup, G., Mendel, R.R. and Schwarz, G. The Mechanism of nucleotide-assisted molybdenum insertion into molybdopterin. A novel route toward metal cofactor assembly. J. Biol. Chem. 281 (2006) 18343–18350. [PMID: 16636046]
[EC created 2011]

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