| Chain | GOid | namespace | contents |
| A | 0000166 | molecular_function | nucleotide binding |
| A | 0004812 | molecular_function | aminoacyl-tRNA ligase activity |
| A | 0004821 | molecular_function | histidine-tRNA ligase activity |
| A | 0005524 | molecular_function | ATP binding |
| A | 0005737 | cellular_component | cytoplasm |
| A | 0006412 | biological_process | translation |
| A | 0006418 | biological_process | tRNA aminoacylation for protein translation |
| A | 0006427 | biological_process | histidyl-tRNA aminoacylation |
| A | 0016740 | molecular_function | transferase activity |
| A | 0016874 | molecular_function | ligase activity |
| A | 0140096 | molecular_function | catalytic activity, acting on a protein |
| A | 0140101 | molecular_function | catalytic activity, acting on a tRNA |
| B | 0000166 | molecular_function | nucleotide binding |
| B | 0004812 | molecular_function | aminoacyl-tRNA ligase activity |
| B | 0004821 | molecular_function | histidine-tRNA ligase activity |
| B | 0005524 | molecular_function | ATP binding |
| B | 0005737 | cellular_component | cytoplasm |
| B | 0006412 | biological_process | translation |
| B | 0006418 | biological_process | tRNA aminoacylation for protein translation |
| B | 0006427 | biological_process | histidyl-tRNA aminoacylation |
| B | 0016740 | molecular_function | transferase activity |
| B | 0016874 | molecular_function | ligase activity |
| B | 0140096 | molecular_function | catalytic activity, acting on a protein |
| B | 0140101 | molecular_function | catalytic activity, acting on a tRNA |
