label: guanosine(2069) in 23S rRNA + S-adenosyl-L-methionine <=> N(2)-methylguanosine(2069) in 23S rRNA + S-adenosyl-L-homocysteine + H(+)
label_lc: guanosine(2069) in 23s rrna + s-adenosyl-l-methionine <=> n(2)-methylguanosine(2069) in 23s rrna + s-adenosyl-l-homocysteine + h(+)