si_0571 Archease2 tRNA and rRNA cytosine-C5-methylase Type 1 si_0571 Archease2 Archease si_0571 Archease2 tRNA m(1)G methyltransferase; COG2419: Uncharacterized ACR si_0571 Archease2 SSO0251 family si_0571 Archease2 tRNA/RNA cytosine-C5-methylase (EC 2.1.1.-)