The Enzyme Database

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Accepted name: CDP-2,3-bis-(O-geranylgeranyl)-sn-glycerol synthase
Reaction: CTP + 2,3-bis-(O-geranylgeranyl)-sn-glycerol 1-phosphate = diphosphate + CDP-2,3-bis-(O-geranylgeranyl)-sn-glycerol
For diagram of archaetidylserine biosynthesis, click here
Glossary: 2,3-bis-(O-geranylgeranyl)-sn-glycerol 1-phosphate = 2,3-bis-(O-geranylgeranyl)-glycerophosphate ether = unsaturated archaetidic acid
CDP-unsaturated archaeol = CDP-2,3-bis-(O-geranylgeranyl)-sn-glycerol
Other name(s): carS (gene name); CDP-2,3-di-O-geranylgeranyl-sn-glycerol synthase; CTP:2,3-GG-GP ether cytidylyltransferase; CTP:2,3-di-O-geranylgeranyl-sn-glycero-1-phosphate cytidyltransferase; CDP-2,3-bis-O-(geranylgeranyl)-sn-glycerol synthase; CTP:2,3-bis-O-(geranylgeranyl)-sn-glycero-1-phosphate cytidylyltransferase; CDP-unsaturated archaeol synthase; CDP-archaeol synthase (incorrect)
Systematic name: CTP:2,3-bis-(O-geranylgeranyl)-sn-glycerol 1-phosphate cytidylyltransferase
Comments: This enzyme catalyses one of the steps in the biosynthesis of polar lipids in archaea, which are characterized by having an sn-glycerol 1-phosphate backbone rather than an sn-glycerol 3-phosphate backbone as is found in bacteria and eukaryotes [1]. The enzyme requires Mg2+ and K+ for maximal activity [1].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 329791-09-5
1.  Morii, H., Nishihara, M. and Koga, Y. CTP:2,3-di-O-geranylgeranyl-sn-glycero-1-phosphate cytidyltransferase in the methanogenic archaeon Methanothermobacter thermoautotrophicus. J. Biol. Chem. 275 (2000) 36568–36574. [DOI] [PMID: 10960477]
2.  Morii, H. and Koga, Y. CDP-2,3-di-O-geranylgeranyl-sn-glycerol:L-serine O-archaetidyltransferase (archaetidylserine synthase) in the methanogenic archaeon Methanothermobacter thermautotrophicus. J. Bacteriol. 185 (2003) 1181–1189. [DOI] [PMID: 12562787]
3.  Jain, S., Caforio, A., Fodran, P., Lolkema, J.S., Minnaard, A.J. and Driessen, A.J. Identification of CDP-archaeol synthase, a missing link of ether lipid biosynthesis in Archaea. Chem. Biol. 21 (2014) 1392–1401. [DOI] [PMID: 25219966]
[EC created 2009, modified 2014]

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