Protein
Presqualene diphosphate synthase
Organism
Zymomonas mobilis subsp. mobilis (strain ATCC 31821 / ZM4 / CP4)
Function
Involved in the biosynthesis of the hopanoid precursor squalene (SQ) from farnesyl diphosphate (FPP). Catalyzes the first step, the formation of presqualene diphosphate (PSPP) from two molecules of FPP.
Similarity
Belongs to the phytoene/squalene synthase family. HpnD subfamily.
Sequence
MTSAMKKIQPEAFSEKSSDSQASVSGAKSSSFYIGMRVLPPAEREAMYAIYNFCRQVDDIADDLEGSQEERKQALDAWRHDINALYAGEPCGQAAFLKEPVARFHLRQEDFIAVIDGMAMDLKGPIVFPDEATLDLYCDRVASAVGRLSVYVFGMDPNIGESLAYHLGRALQLTNILRDIDEDAEIGRCYLPREPLEKAGIPLDIEKALADPRLDKVCRDLAWQAEGHYAASDHIIHNRPKGYLIAPRLMAAAYSALLRKMLAQGWKNPRKKVKHNKLALLWTLLRLKVTS