label: guanosine(966) in 16S rRNA + S-adenosyl-L-methionine => N(2)-methylguanosine(966) in 16S rRNA + S-adenosyl-L-homocysteine + H(+)
label_lc: guanosine(966) in 16s rrna + s-adenosyl-l-methionine => n(2)-methylguanosine(966) in 16s rrna + s-adenosyl-l-homocysteine + h(+)