The Enzyme Database

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Accepted name: 2,3-bis-O-geranylgeranyl-sn-glycero-phospholipid reductase
Reaction: a 2,3-bis-(O-phytanyl)-sn-glycero-phospholipid + 16 oxidized ferredoxin [iron-sulfur] cluster = a 2,3-bis-(O-geranylgeranyl)-sn-glycero-phospholipid + 16 reduced ferredoxin [iron-sulfur] cluster + 16 H+
For diagram of archaetidylserine biosynthesis, click here
Glossary: phytanol = 3,7,11,15-tetramethylhexadecan-1-ol
Other name(s): AF0464 (gene name); 2,3-bis-O-geranylgeranyl-sn-glycerol 1-phosphate reductase (donor)
Systematic name: 2,3-bis-(O-phytanyl)-sn-glycero-phospholipid:ferredoxin oxidoreductase
Comments: A flavoprotein (FAD). The enzyme is involved in the biosynthesis of archaeal membrane lipids. It catalyses the reduction of all 8 double bonds in 2,3-bis-O-geranylgeranyl-sn-glycero-phospholipids and all 4 double bonds in 3-O-geranylgeranyl-sn-glycerol phospholipids with comparable activity. Unlike EC, 2,3-bis-O-geranylgeranyl-sn-glycerol 1-phosphate reductase [NAD(P)H], this enzyme shows no activity with NADPH, and requires a dedicated ferredoxin [4].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Murakami, M., Shibuya, K., Nakayama, T., Nishino, T., Yoshimura, T. and Hemmi, H. Geranylgeranyl reductase involved in the biosynthesis of archaeal membrane lipids in the hyperthermophilic archaeon Archaeoglobus fulgidus. FEBS J. 274 (2007) 805–814. [PMID: 17288560]
2.  Sato, S., Murakami, M., Yoshimura, T. and Hemmi, H. Specific partial reduction of geranylgeranyl diphosphate by an enzyme from the thermoacidophilic archaeon Sulfolobus acidocaldarius yields a reactive prenyl donor, not a dead-end product. J. Bacteriol. 190 (2008) 3923–3929. [PMID: 18375567]
3.  Sasaki, D., Fujihashi, M., Iwata, Y., Murakami, M., Yoshimura, T., Hemmi, H. and Miki, K. Structure and mutation analysis of archaeal geranylgeranyl reductase. J. Mol. Biol. 409 (2011) 543–557. [PMID: 21515284]
4.  Isobe, K., Ogawa, T., Hirose, K., Yokoi, T., Yoshimura, T. and Hemmi, H. Geranylgeranyl reductase and ferredoxin from Methanosarcina acetivorans are required for the synthesis of fully reduced archaeal membrane lipid in Escherichia coli cells. J. Bacteriol. 196 (2014) 417–423. [PMID: 24214941]
[EC created 2013 as EC, transferred 2015 to EC ]

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