label: adenosine(645) in 25S rRNA + S-adenosyl-L-methionine <=> N(1)-methyladenosine(645) in 25S rRNA + S-adenosyl-L-homocysteine + H(+)
label_lc: adenosine(645) in 25s rrna + s-adenosyl-l-methionine <=> n(1)-methyladenosine(645) in 25s rrna + s-adenosyl-l-homocysteine + h(+)