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EC 2.5.1.148 Details
EC number
2.5.1.148
Accepted name
lycopaoctaene synthase
Reaction
2 geranylgeranyl diphosphate + NADPH + H+ = lycopaoctaene + 2 diphosphate + NADP+ (overall reaction);;(1a) 2 geranylgeranyl diphosphate = diphosphate + prephytoene diphosphate;;(1b) prephytoene diphosphate + NADPH + H+ = lycopaoctaene + diphosphate + NADP+
Other name(s)
LOS (gene name)
Systematic name
geranylgeranyl-diphosphate:geranylgeranyl diphosphate geranylgeranyltransferase
Comment
The enzyme, characterized from the green microalga Botryococcus braunii race L, in involved in biosynthesis of (14E,18E)-lycopadiene. In vitro, the enzyme can accept (2E,6E)-farnesyl diphosphate and phytyl diphosphate as substrates, and is also able to catalyse the condensation of two different substrate molecules, forming chimeric products. However, the use of these alternative substrates is not significant in vivo.
History
created 2018
EC Tree
2.5.1.12 created 1972, deleted 1976
2.5.1.13 created 1972, deleted 1976
2.5.1.14 created 1972, deleted 1976
2.5.1.37 created 1989, deleted 2004
2.5.1.40 created 1992, deleted 1999