ID   2.1.1.41
DE   sterol 24-C-methyltransferase.
AN   24-sterol C-methyltransferase.
AN   Delta(24)-methyltransferase.
AN   Delta(24)-sterol methyltransferase.
AN   phytosterol methyltransferase.
AN   S-adenosyl-4-methionine:sterol Delta(24)-methyltransferase.
AN   S-adenosyl-L-methionine:Delta(24(23))-sterol methyltransferase.
AN   SMT1.
AN   zymosterol-24-methyltransferase.
CA   S-adenosyl-L-methionine + zymosterol = fecosterol + H(+) + S-adenosyl-L-
CA   homocysteine.
CC   -!- Acts on a range of sterols with a 24(25)-double bond in the side
CC       chain.
CC   -!- While zymosterol is the preferred substrate it also acts on
CC       desmosterol, 5alpha-cholesta-7,24-dien-3beta-ol, 5alpha-cholesta-
CC       5,7,24-trien-3beta-ol, 4alpha-methylzymosterol and others.
CC   -!- S-Adenosyl-L-methionine attacks the Si face of the 24(25) double bond
CC       and the C-24 hydrogen is transferred to C-25 on the Re face of the
CC       double bond.
DR   O74198, ERG6_CANAL ;  Q6FRZ7, ERG6_CANGA ;  Q875K1, ERG6_CLAL4 ;
DR   Q6BRB7, ERG6_DEBHA ;  Q759S7, ERG6_EREGS ;  Q6CYB3, ERG6_KLULA ;
DR   L7IP31, ERG6_PYRO3 ;  P0CT10, ERG6_PYRO7 ;  O14321, ERG6_SCHPO ;
DR   Q6C2D9, ERG6_YARLI ;  P25087, ERG6_YEAST ;  Q9LM02, SMT1_ARATH ;
DR   Q54I98, SMT1_DICDI ;  Q6ZIX2, SMT1_ORYSJ ;
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