| Chain | GOid | namespace | contents |
| A | 0005886 | cellular_component | plasma membrane |
| A | 0015112 | molecular_function | nitrate transmembrane transporter activity |
| A | 0015113 | molecular_function | nitrite transmembrane transporter activity |
| A | 0015291 | molecular_function | secondary active transmembrane transporter activity |
| A | 0015514 | molecular_function | nitrite efflux transmembrane transporter activity |
| A | 0015706 | biological_process | nitrate transmembrane transport |
| A | 0015707 | biological_process | nitrite transport |
| A | 0016020 | cellular_component | membrane |
| A | 0022857 | molecular_function | transmembrane transporter activity |
| A | 0042128 | biological_process | nitrate assimilation |
| A | 0055085 | biological_process | transmembrane transport |
| B | 0005886 | cellular_component | plasma membrane |
| B | 0015112 | molecular_function | nitrate transmembrane transporter activity |
| B | 0015113 | molecular_function | nitrite transmembrane transporter activity |
| B | 0015291 | molecular_function | secondary active transmembrane transporter activity |
| B | 0015514 | molecular_function | nitrite efflux transmembrane transporter activity |
| B | 0015706 | biological_process | nitrate transmembrane transport |
| B | 0015707 | biological_process | nitrite transport |
| B | 0016020 | cellular_component | membrane |
| B | 0022857 | molecular_function | transmembrane transporter activity |
| B | 0042128 | biological_process | nitrate assimilation |
| B | 0055085 | biological_process | transmembrane transport |