| Chain | GOid | namespace | contents |
| A | 0004124 | molecular_function | cysteine synthase activity |
| A | 0005737 | cellular_component | cytoplasm |
| A | 0006535 | biological_process | cysteine biosynthetic process from serine |
| A | 0008652 | biological_process | amino acid biosynthetic process |
| A | 0016740 | molecular_function | transferase activity |
| A | 0016765 | molecular_function | transferase activity, transferring alkyl or aryl (other than methyl) groups |
| A | 0019344 | biological_process | cysteine biosynthetic process |
| A | 0080146 | molecular_function | L-cysteine desulfhydrase activity |
| B | 0004124 | molecular_function | cysteine synthase activity |
| B | 0005737 | cellular_component | cytoplasm |
| B | 0006535 | biological_process | cysteine biosynthetic process from serine |
| B | 0008652 | biological_process | amino acid biosynthetic process |
| B | 0016740 | molecular_function | transferase activity |
| B | 0016765 | molecular_function | transferase activity, transferring alkyl or aryl (other than methyl) groups |
| B | 0019344 | biological_process | cysteine biosynthetic process |
| B | 0080146 | molecular_function | L-cysteine desulfhydrase activity |