2.5.1.82: hexaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific]
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For detailed information about hexaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific], go to the full flat file.
Reaction
+ 2 isopentenyl diphosphate = 2 diphosphate +
Synonyms
(all-E) hexaprenyl diphosphate synthase, (all-trans) hexaprenyl diphosphate synthase, EC 2.5.1.33, hexaprenyl pyrophosphate synthase, HexPPs, HexPS
ECTree
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Systematic Name
Systematic Name on EC 2.5.1.82 - hexaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific]
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geranylgeranyl-diphosphate:isopentenyl-diphosphate transferase (adding 2 isopentenyl units)
The enzyme prefers geranylgeranyl diphosphate to farnesyl diphosphate as an allylic substrate and does not show activity for geranyl diphosphate and prenyl diphosphate. Requires Mg2+ [1].