2.5.1.B14: (2E,6E)-farnesyl-diphosphate all-trans-nonaprenyl diphosphate synthase
This is an abbreviated version!
For detailed information about (2E,6E)-farnesyl-diphosphate all-trans-nonaprenyl diphosphate synthase, go to the full flat file.
Reaction
+ 6 isopentenyl diphosphate = 6 diphosphate +
Synonyms
OsSPS1, solanesyl diphosphate synthase, solanesyl diphosphate synthase 1, SPP synthase, SPPS, SPS, SPS1, Sps2
ECTree
Advanced search results
General Information
General Information on EC 2.5.1.B14 - (2E,6E)-farnesyl-diphosphate all-trans-nonaprenyl diphosphate synthase
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
metabolism
physiological function
solanesyl diphosphate is a precursor for solanesol biosynthesis. In the solanesol biosynthetic pathway, isopentenyl diphosphate is first isomerised to form dimethylallyl diphosphate by isopentenyl diphosphate isomerase, Ipi, which then binds to isopentenyl diphosphates one by one in the head-tail mode
metabolism
-
solanesyl diphosphate synthase 1 is the key enzyme in solanesol biosynthesis
isoform SPS1 is able to complement the yeast coq1 disruptant, which does not form ubiquinone. tranformants produce ubiquinone 9 instead of the native yeast product ubiquinone 6
physiological function
when expressed in Escherichia coli, enzyme extends the prenyl chain length of the endogenous ubiquinone to nine isoprene units respectively. In planta, constitutive overexpression elevates the plastoquinone content of immature tobacco leaves. Virus-induced gene silencing shows that the enzyme is necessary for normal chloroplast structure and function. Plants silenced for SPS are photobleached and accumulate phytoene
physiological function
-
isoform SPS1 overexpression significantly increases leaf growth, photosynthesis, and chlorophyll content