| MF | GO:0000166 | nucleotide binding | None | Extended |
| MF | GO:0003674 | molecular_function | None | Extended |
| MF | GO:0003676 | nucleic acid binding | None | Extended |
| MF | GO:0003723 | RNA binding | None | Extended |
| MF | GO:0003729 | mRNA binding | IEA | AHRD |
| MF | GO:0003824 | catalytic activity | None | Extended |
| MF | GO:0005488 | binding | None | Extended |
| MF | GO:0005515 | protein binding | None | Extended |
| CC | GO:0005575 | cellular_component | None | Extended |
| CC | GO:0005773 | vacuole | IEA | AHRD |
| CC | GO:0005829 | cytosol | IEA | AHRD |
| CC | GO:0005886 | plasma membrane | IEA | AHRD |
| BP | GO:0006082 | organic acid metabolic process | None | Extended |
| BP | GO:0006807 | nitrogen compound metabolic process | None | Extended |
| BP | GO:0006809 | nitric oxide biosynthetic process | IEA | AHRD |
| BP | GO:0006950 | response to stress | None | Extended |
| BP | GO:0008150 | biological_process | None | Extended |
| BP | GO:0008152 | metabolic process | None | Extended |
| MF | GO:0008940 | nitrate reductase activity | None | Extended |
| BP | GO:0009058 | biosynthetic process | None | Extended |
| BP | GO:0009314 | response to radiation | None | Extended |
| BP | GO:0009416 | response to light stimulus | IEA | AHRD |
| BP | GO:0009605 | response to external stimulus | None | Extended |
| BP | GO:0009607 | response to biotic stimulus | None | Extended |
| BP | GO:0009608 | response to symbiont | None | Extended |
| BP | GO:0009610 | response to symbiotic fungus | IEA | AHRD |
| BP | GO:0009620 | response to fungus | None | Extended |
| BP | GO:0009628 | response to abiotic stimulus | None | Extended |
| BP | GO:0009635 | response to herbicide | IEA | AHRD |
| BP | GO:0009636 | response to toxic substance | None | Extended |
| MF | GO:0009703 | nitrate reductase (NADH) activity | IEA | AHRD |
| BP | GO:0009987 | cellular process | None | Extended |
| CC | GO:0016020 | membrane | None | Extended |
| MF | GO:0016491 | oxidoreductase activity | None | Extended |
| MF | GO:0016661 | oxidoreductase activity, acting on other nitrogenous compounds as donors | None | Extended |
| MF | GO:0020037 | heme binding | IEA | AHRD |
| MF | GO:0030151 | molybdenum ion binding | IEA | AHRD |
| BP | GO:0034641 | cellular nitrogen compound metabolic process | None | Extended |
| MF | GO:0036094 | small molecule binding | None | Extended |
| BP | GO:0042126 | nitrate metabolic process | None | Extended |
| BP | GO:0042128 | nitrate assimilation | IEA | AHRD |
| BP | GO:0042221 | response to chemical | None | Extended |
| MF | GO:0042802 | identical protein binding | IEA | AHRD |
| MF | GO:0043167 | ion binding | None | Extended |
| MF | GO:0043168 | anion binding | None | Extended |
| MF | GO:0043169 | cation binding | None | Extended |
| BP | GO:0043207 | response to external biotic stimulus | None | Extended |
| CC | GO:0043226 | organelle | None | Extended |
| CC | GO:0043227 | membrane-bounded organelle | None | Extended |
| CC | GO:0043229 | intracellular organelle | None | Extended |
| CC | GO:0043231 | intracellular membrane-bounded organelle | None | Extended |
| BP | GO:0043436 | oxoacid metabolic process | None | Extended |
| MF | GO:0043546 | molybdopterin cofactor binding | IEA | AHRD |
| BP | GO:0044237 | cellular metabolic process | None | Extended |
| BP | GO:0044249 | cellular biosynthetic process | None | Extended |
| BP | GO:0044271 | cellular nitrogen compound biosynthetic process | None | Extended |
| BP | GO:0044281 | small molecule metabolic process | None | Extended |
| BP | GO:0044419 | biological process involved in interspecies interaction between organisms | None | Extended |
| BP | GO:0046209 | nitric oxide metabolic process | None | Extended |
| MF | GO:0046857 | oxidoreductase activity, acting on other nitrogenous compounds as donors, with NAD or NADP as acceptor | None | Extended |
| MF | GO:0046872 | metal ion binding | None | Extended |
| MF | GO:0046906 | tetrapyrrole binding | None | Extended |
| MF | GO:0046914 | transition metal ion binding | None | Extended |
| MF | GO:0050463 | nitrate reductase [NAD(P)H] activity | None | Extended |
| MF | GO:0050464 | nitrate reductase (NADPH) activity | IEA | AHRD |
| MF | GO:0050660 | flavin adenine dinucleotide binding | None | Extended |
| BP | GO:0050896 | response to stimulus | None | Extended |
| BP | GO:0051707 | response to other organism | None | Extended |
| BP | GO:0071704 | organic substance metabolic process | None | Extended |
| BP | GO:0071941 | nitrogen cycle metabolic process | None | Extended |
| MF | GO:0071949 | FAD binding | IEA | AHRD |
| MF | GO:0097159 | organic cyclic compound binding | None | Extended |
| CC | GO:0110165 | cellular anatomical entity | None | Extended |
| MF | GO:1901265 | nucleoside phosphate binding | None | Extended |
| MF | GO:1901363 | heterocyclic compound binding | None | Extended |
| BP | GO:2001057 | reactive nitrogen species metabolic process | None | Extended |