An isoleucine-based allosteric switch controls affinity and shape shifting in integrin CD11b A-domain.
Xiong, J.P., Li, R., Essafi, M., Stehle, T., Arnaout, M.A.(2000) J Biol Chem 275: 38762-38767
- PubMed: 11034990 
- DOI: 10.1074/jbc.C000563200
- Primary Citation of Related Structures:  
1M1U - PubMed Abstract: 
In response to cell activation signals, integrins switch from a low to a high affinity state. Physiologic ligands bind to integrins through a von Willebrand Factor A-type domain. Crystallographic studies revealed two conformations of this domain, "closed" and "open ...