label: N(1)-methyladenosine(2142) in 25S rRNA + S-adenosyl-L-homocysteine + H(+) => adenosine(2142) in 25S rRNA + S-adenosyl-L-methionine
label_lc: n(1)-methyladenosine(2142) in 25s rrna + s-adenosyl-l-homocysteine + h(+) => adenosine(2142) in 25s rrna + s-adenosyl-l-methionine