L-histidine N(alpha)-methyltransferase activity
Catalysis of the reaction: L-histidine + 3 S-adenosyl-L-methionine <=> 3 H(+) + hercynine + 3 S-adenosyl-L-homocysteine. This reaction is the addition of three methyl groups to L-histidine to form N-alpha,N-alpha,N-alpha-trimethyl-L-histidine (also known as hercynine).
GO:0008757
S-adenosylmethionine-dependent methyltransferase activity
is_a
S-adenosyl-L-methionine:L-histidine Nalpha-methyltransferase activity
exact
S-adenosyl-L-methionine:L-histidine alpha-N-methyltransferase activity
exact
histidine N-methyltransferase activity
exact
histidine methyltransferase activity
exact
histidine-alpha-N-methyltransferase activity
exact
SPBC1604.01