ID   2.1.1.219
DE   tRNA (adenine(57)-N(1)/adenine(58)-N(1))-methyltransferase.
CA   adenosine(57)/adenosine(58) in tRNA + 2 S-adenosyl-L-methionine = 2 H(+)
CA   + N(1)-methyladenosine(57)/N(1)-methyladenosine(58) in tRNA +
CA   2 S-adenosyl-L-homocysteine.
CC   -!- The enzyme catalyzes the formation of N(1)-methyladenine at two
CC       adjacent positions (57 and 58) in the T-loop of certain tRNAs (e.g.
CC       tRNA(Asp)).
CC   -!- Methyladenosine at position 57 is an obligatory intermediate for the
CC       synthesis of methylinosine, which is commonly found at position 57 of
CC       archaeal tRNAs.
CC   -!- Formerly EC 2.1.1.36.
DR   Q57598, TRMI_METJA ;  Q9V1J7, TRMI_PYRAB ;
//