| CXCL | CXC ligand |
| CXCR2 | CXC chemokine receptor 2 |
| CXCL7/NAP-2 | Neutrophil-activating peptide 2 |
| GAG | Glycosaminoglycan |
| CXCR2Nd | CXCR2 N-terminal domain |
| GPCR | G-protein coupled receptor |
| NAC | Neutrophil activating chemokine |
| NMR | Nuclear magnetic resonance |
| HSQC | Heteronuclear single quantum coherence |
| CSP | Chemical shift perturbation |
| NOE | Nuclear Overhauser effect |
| AIR | Ambiguous interaction restraints |