molecular function |
| GO:0008685 | | 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase activity | | Catalysis of the reaction: 4-CDP-2-C-methyl-D-erythritol 2-phosphate = 2-C-methyl-D-erythritol 2,4-cyclic diphosphate + CMP. |
| GO:0008168 | | methyltransferase activity | | Catalysis of the transfer of a methyl group to an acceptor molecule. |
| GO:0052906 | | tRNA (guanine(37)-N(1))-methyltransferase activity | | Catalysis of the reaction: S-adenosyl-L-methionine + guanine(37) in tRNA = N(1)-methylguanine(37) in tRNA + S-adenosyl-L-homocysteine. |
| GO:0009019 | | tRNA (guanine-N1-)-methyltransferase activity | | Catalysis of the reaction: S-adenosyl-L-methionine + tRNA = S-adenosyl-L-homocysteine + tRNA containing N1-methylguanine. |
| GO:0016740 | | transferase activity | | Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2. |
biological process |
| GO:0032259 | | methylation | | The process in which a methyl group is covalently attached to a molecule. |
| GO:0030488 | | tRNA methylation | | The posttranscriptional addition of methyl groups to specific residues in a tRNA molecule. |
| GO:0006400 | | tRNA modification | | The covalent alteration of one or more nucleotides within a tRNA molecule to produce a tRNA molecule with a sequence that differs from that coded genetically. |
| GO:0008033 | | tRNA processing | | The process in which a pre-tRNA molecule is converted to a mature tRNA, ready for addition of an aminoacyl group. |
cellular component |
| GO:0005737 | | cytoplasm | | All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |