ID   2.1.1.203
DE   tRNA (cytosine(34)-C(5))-methyltransferase.
CA   cytidine(34) in tRNA precursor + S-adenosyl-L-methionine =
CA   5-methylcytidine(34) in tRNA precursor + H(+) + S-adenosyl-L-
CA   homocysteine.
CC   -!- The human enzyme is specific for C(5)-methylation of cytosine(34) in
CC       tRNA precursors.
CC   -!- The intron in the human pre-tRNA(Leu)(CAA) is indispensable for the
CC       C(5)-methylation of cytosine in the first position of the anticodon.
CC   -!- It is not able to form 5-methylcytosine at positions 48 and 49 of
CC       human and yeast tRNA precursors.
CC   -!- Formerly EC 2.1.1.29.
DR   Q5ZLV4, NSUN2_CHICK;  Q9W4M9, NSUN2_DROME;  Q08J23, NSUN2_HUMAN;
DR   Q1HFZ0, NSUN2_MOUSE;  Q4V7N2, NSUN2_XENLA;  Q28E61, NSUN2_XENTR;
DR   Q9HGQ2, TRM4A_SCHPO;
//