ID 2.1.1.287 DE 25S rRNA (adenine(645)-N(1))-methyltransferase. AN 25S rRNA m(1)A(645) methyltransferase. CA adenosine(645) in 25S rRNA + S-adenosyl-L-methionine = H(+) + N(1)- CA methyladenosine(645) in 25S rRNA + S-adenosyl-L-homocysteine. CC -!- The enzyme is found in eukaryotes. CC -!- The adenine position refers to tRNA the yeast Saccharomyces CC cerevisiae, in which the enzyme is important for ribosome biogenesis. DR Q10257, RRP8_SCHPO ; P38961, RRP8_YEAST ; //