ID   2.7.7.67
DE   CDP-archaeol synthase.
CA   CTP + 2,3-bis-O-(geranylgeranyl)-sn-glycero-1-phosphate = diphosphate +
CA   CDP-2,3-bis-O-(geranylgeranyl)-sn-glycerol.
CF   Magnesium; Potassium.
CC   -!- Catalyzes one of the steps in the biosynthesis of polar lipids in
CC       archaea, which are characterized by having an sn-glycero-1-phosphate
CC       backbone rather than an sn-glycero-3-phosphate backbone as is found
CC       in bacteria and eukaryotes.
CC   -!- The other enzymes involved in the biosynthesis of polar lipids in
CC       archaea are EC 1.1.1.261, EC 2.5.1.41 and EC 2.5.1.42, which together
CC       alkylate the hydroxy groups of glycerol 1-phosphate to give
CC       unsaturated archaetidic acid, which is acted upon by this enzyme to
CC       form CDP-unsaturated archaeol.
CC   -!- The final step in the pathway involves the addition of L-serine, with
CC       concomitant removal of CMP, leading to the production of unsaturated
CC       archaetidylserine.
CC   -!- Formerly EC 2.7.7.n2.
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