| Chain | GOid | namespace | contents |
| A | 0003824 | molecular_function | catalytic activity |
| A | 0008704 | molecular_function | 5-carboxymethyl-2-hydroxymuconate delta-isomerase activity |
| A | 0016829 | molecular_function | lyase activity |
| A | 0016853 | molecular_function | isomerase activity |
| A | 0018800 | molecular_function | 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase activity |
| A | 0019752 | biological_process | carboxylic acid metabolic process |
| A | 0046872 | molecular_function | metal ion binding |
| A | 1901023 | biological_process | 4-hydroxyphenylacetate catabolic process |
| B | 0003824 | molecular_function | catalytic activity |
| B | 0008704 | molecular_function | 5-carboxymethyl-2-hydroxymuconate delta-isomerase activity |
| B | 0016829 | molecular_function | lyase activity |
| B | 0016853 | molecular_function | isomerase activity |
| B | 0018800 | molecular_function | 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase activity |
| B | 0019752 | biological_process | carboxylic acid metabolic process |
| B | 0046872 | molecular_function | metal ion binding |
| B | 1901023 | biological_process | 4-hydroxyphenylacetate catabolic process |
| C | 0003824 | molecular_function | catalytic activity |
| C | 0008704 | molecular_function | 5-carboxymethyl-2-hydroxymuconate delta-isomerase activity |
| C | 0016829 | molecular_function | lyase activity |
| C | 0016853 | molecular_function | isomerase activity |
| C | 0018800 | molecular_function | 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase activity |
| C | 0019752 | biological_process | carboxylic acid metabolic process |
| C | 0046872 | molecular_function | metal ion binding |
| C | 1901023 | biological_process | 4-hydroxyphenylacetate catabolic process |
| D | 0003824 | molecular_function | catalytic activity |
| D | 0008704 | molecular_function | 5-carboxymethyl-2-hydroxymuconate delta-isomerase activity |
| D | 0016829 | molecular_function | lyase activity |
| D | 0016853 | molecular_function | isomerase activity |
| D | 0018800 | molecular_function | 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase activity |
| D | 0019752 | biological_process | carboxylic acid metabolic process |
| D | 0046872 | molecular_function | metal ion binding |
| D | 1901023 | biological_process | 4-hydroxyphenylacetate catabolic process |