| Chain | GOid | namespace | contents |
| A | 0002376 | biological_process | immune system process |
| A | 0005515 | molecular_function | protein binding |
| A | 0005576 | cellular_component | extracellular region |
| A | 0005615 | cellular_component | extracellular space |
| A | 0006955 | biological_process | immune response |
| A | 0008270 | molecular_function | zinc ion binding |
| A | 0008745 | molecular_function | N-acetylmuramoyl-L-alanine amidase activity |
| A | 0009253 | biological_process | peptidoglycan catabolic process |
| A | 0016019 | molecular_function | peptidoglycan immune receptor activity |
| A | 0032499 | biological_process | detection of peptidoglycan |
| A | 0042834 | molecular_function | peptidoglycan binding |
| A | 0045087 | biological_process | innate immune response |
| A | 0050829 | biological_process | defense response to Gram-negative bacterium |
| A | 0050830 | biological_process | defense response to Gram-positive bacterium |
| A | 0061059 | biological_process | positive regulation of peptidoglycan recognition protein signaling pathway |