Structural Analysis of a Novel Small Molecule Ligand Bound to the CXCL12 Chemokine.
Smith, E.W., Liu, Y., Getschman, A.E., Peterson, F.C., Ziarek, J.J., Li, R., Volkman, B.F., Chen, Y.(2014) J Med Chem 57: 9693-9699
- PubMed: 25356720 
- DOI: https://doi.org/10.1021/jm501194p
- Primary Citation of Related Structures:  
4UAI - PubMed Abstract: 
CXCL12 binds to CXCR4, promoting both chemotaxis of lymphocytes and metastasis of cancer cells. We previously identified small molecule ligands that bind CXCL12 and block CXCR4-mediated chemotaxis. We now report a 1.9 Å resolution X-ray structure of CXCL12 bound by such a molecule at a site normally bound by sY21 of CXCR4. The complex structure reveals binding hot spots for future inhibitor design and suggests a new approach to targeting CXCL12-CXCR4 signaling in drug discovery.
Organizational Affiliation: 
Department of Molecular Medicine, University of South Florida , 12901 Bruce B. Downs Boulevard, Tampa, Florida 33612, United States.