Figure 1.
CXCL12 and CXCR4 structure and molecular interactions. A) Structure. Crystal structure of the monomer forms are shown for CXCL12 and CXCR4 complexed with the small molecular weight antagonist IT1t [41]. B) Molecular interactions. Some demonstrated binding interactions are shown for CXCL12, CXCR4, ACKR3 and several non-chemokine ligands for CXCR4 and ACKR3. See text for details and references. Abbreviations: MIF, macrophage migration inhibitory factor; AM, adrenomedullin; HMGB1, high mobility group-box 1.