si_0723 Methylthiotransferases Ribosomal protein S12p Asp88 (E. coli) methylthiotransferase si_0723 Methylthiotransferases tRNA-i(6)A37 methylthiotransferase si_0723 Methylthiotransferases MiaB family protein, possibly involved in tRNA or rRNA modification si_0723 Methylthiotransferases tRNA N6-threonylcarbamoyladenosine 2-methylthiotransferase (putative)