preferred_name: N(6),N(6)-dimethyl-L-lysyl-[histone] + S-adenosyl-L-homocysteine + H(+) => N(6)-methyl-L-lysyl-[histone] + S-adenosyl-L-methionine
preferred_name_lc: n(6),n(6)-dimethyl-l-lysyl-[histone] + s-adenosyl-l-homocysteine + h(+) => n(6)-methyl-l-lysyl-[histone] + s-adenosyl-l-methionine
label: N(6),N(6)-dimethyl-L-lysyl-[histone] + S-adenosyl-L-homocysteine + H(+) => N(6)-methyl-L-lysyl-[histone] + S-adenosyl-L-methionine
label_lc: n(6),n(6)-dimethyl-l-lysyl-[histone] + s-adenosyl-l-homocysteine + h(+) => n(6)-methyl-l-lysyl-[histone] + s-adenosyl-l-methionine