EC - Geosmin synthase

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DE   Geosmin synthase.
CA   (1E,4S,5E,7R)-germacra-1(10),5-dien-11-ol + H(2)O = (-)-geosmin +
CA   acetone.
CF   Mg(2+).
CC   -!- Geosmin is the cause of the characteristic smell of moist soil.
CC   -!- It is a bifunctional enzyme.
CC   -!- The N-terminal part of the enzyme is EC, germacradienol
CC       synthase, and forms germacradienol from FPP.
CC   -!- The C-terminal part of the enzyme catalyzes the conversion of
CC       germacradienol to geosmin via (1S,4aS,8aS)-8,10-dimethyl-
CC       1,2,3,4,4a,5,6,8a-octahydronaphthalene.
DR   Q9X839    , CYC2_STRCO ;