| BP | GO:0001510 | RNA methylation | None | Extended |
| BP | GO:0002128 | tRNA nucleoside ribose methylation | None | Extended |
| BP | GO:0002130 | wobble position ribose methylation | IEA | AHRD |
| MF | GO:0003674 | molecular_function | None | Extended |
| MF | GO:0003824 | catalytic activity | None | Extended |
| CC | GO:0005575 | cellular_component | None | Extended |
| CC | GO:0005622 | intracellular anatomical structure | IEA | AHRD |
| BP | GO:0006139 | nucleobase-containing compound metabolic process | None | Extended |
| BP | GO:0006364 | rRNA processing | IEA | AHRD |
| BP | GO:0006396 | RNA processing | None | Extended |
| BP | GO:0006399 | tRNA metabolic process | None | Extended |
| BP | GO:0006400 | tRNA modification | None | Extended |
| BP | GO:0006725 | cellular aromatic compound metabolic process | None | Extended |
| BP | GO:0006807 | nitrogen compound metabolic process | None | Extended |
| BP | GO:0008033 | tRNA processing | None | Extended |
| BP | GO:0008150 | biological_process | None | Extended |
| BP | GO:0008152 | metabolic process | None | Extended |
| MF | GO:0008168 | methyltransferase activity | None | Extended |
| MF | GO:0008171 | O-methyltransferase activity | None | Extended |
| MF | GO:0008173 | RNA methyltransferase activity | None | Extended |
| MF | GO:0008175 | tRNA methyltransferase activity | None | Extended |
| MF | GO:0008649 | rRNA methyltransferase activity | IEA | AHRD |
| MF | GO:0008757 | S-adenosylmethionine-dependent methyltransferase activity | None | Extended |
| MF | GO:0009020 | tRNA (guanosine-2'-O-)-methyltransferase activity | IEA | AHRD |
| BP | GO:0009451 | RNA modification | None | Extended |
| BP | GO:0009987 | cellular process | None | Extended |
| BP | GO:0016070 | RNA metabolic process | None | Extended |
| BP | GO:0016072 | rRNA metabolic process | None | Extended |
| MF | GO:0016423 | tRNA (guanine) methyltransferase activity | None | Extended |
| MF | GO:0016427 | tRNA (cytosine) methyltransferase activity | None | Extended |
| MF | GO:0016740 | transferase activity | None | Extended |
| MF | GO:0016741 | transferase activity, transferring one-carbon groups | None | Extended |
| BP | GO:0030488 | tRNA methylation | None | Extended |
| BP | GO:0032259 | methylation | None | Extended |
| BP | GO:0034470 | ncRNA processing | None | Extended |
| BP | GO:0034641 | cellular nitrogen compound metabolic process | None | Extended |
| BP | GO:0034660 | ncRNA metabolic process | None | Extended |
| BP | GO:0043170 | macromolecule metabolic process | None | Extended |
| BP | GO:0043412 | macromolecule modification | None | Extended |
| BP | GO:0043414 | macromolecule methylation | None | Extended |
| BP | GO:0044237 | cellular metabolic process | None | Extended |
| BP | GO:0044238 | primary metabolic process | None | Extended |
| BP | GO:0044260 | cellular macromolecule metabolic process | None | Extended |
| BP | GO:0046483 | heterocycle metabolic process | None | Extended |
| MF | GO:0052666 | tRNA (cytosine-2'-O-)-methyltransferase activity | IEA | AHRD |
| MF | GO:0062105 | RNA 2'-O-methyltransferase activity | None | Extended |
| BP | GO:0071704 | organic substance metabolic process | None | Extended |
| BP | GO:0090304 | nucleic acid metabolic process | None | Extended |
| MF | GO:0106050 | tRNA 2'-O-methyltransferase activity | None | Extended |
| CC | GO:0110165 | cellular anatomical entity | None | Extended |
| MF | GO:0140098 | catalytic activity, acting on RNA | None | Extended |
| MF | GO:0140101 | catalytic activity, acting on a tRNA | None | Extended |
| MF | GO:0140102 | catalytic activity, acting on a rRNA | None | Extended |
| MF | GO:0140640 | catalytic activity, acting on a nucleic acid | None | Extended |
| BP | GO:1901360 | organic cyclic compound metabolic process | None | Extended |