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