label: guanosine(1835) in 23S rRNA + S-adenosyl-L-methionine => N(2)-methylguanosine(1835) in 23S rRNA + S-adenosyl-L-homocysteine + H(+)
label_lc: guanosine(1835) in 23s rrna + s-adenosyl-l-methionine => n(2)-methylguanosine(1835) in 23s rrna + s-adenosyl-l-homocysteine + h(+)