R00591


L-histidine
L-histidine
<i>S</i>-adenosyl-L-methionine
S-adenosyl-L-methionine
H<SUP>+</SUP>
H+
<i>N</i><sup>π</sup>-methyl-L-histidine
Nπ-methyl-L-histidine
<i>S</i>-adenosyl-L-homocysteine
S-adenosyl-L-homocysteine