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Information on EC 1.1.1.261 - sn-glycerol-1-phosphate dehydrogenase

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IUBMB Comments
This enzyme is found primarily as a Zn2+-dependent form in Archaea but a Ni2+-dependent form has been found in Gram-positive bacteria . The Zn2+-dependent metalloenzyme is responsible for the formation of Archaea-specific sn-glycerol-1-phosphate, the first step in the biosynthesis of polar lipids in Archaea. It is the enantiomer of sn-glycerol 3-phosphate, the form of glycerophosphate found in bacteria and eukaryotes. The other enzymes involved in the biosynthesis of polar lipids in Archaea are EC 2.5.1.41 (phosphoglycerol geranylgeranyltransferase) and EC 2.5.1.42 (geranylgeranylglycerol-phosphate geranylgeranyltransferase), which together alkylate the hydroxy groups of glycerol 1-phosphate to give unsaturated archaetidic acid, which is acted upon by EC 2.7.7.67 (CDP-archaeol synthase) to form CDP-unsaturated archaeol. The final step in the pathway involves the addition of L-serine, with concomitant removal of CMP, leading to the production of unsaturated archaetidylserine . Activity of the enzyme is stimulated by K+ .
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The expected taxonomic range for this enzyme is: Bacteria, Archaea, Eukaryota
Synonyms
sn-glycerol-1-phosphate dehydrogenase, g1pdh, gro1pdh, g-1-p dehydrogenase, st0344 protein, nad(p)h-dependent g1p dehydrogenase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
sn-glycerol 1-phosphate + NAD(P)+ = glycerone phosphate + NAD(P)H + H+
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