The structural basis of Arfaptin-mediated cross-talk between Rac and Arf signalling pathways.
Tarricone, C., Xiao, B., Justin, N., Walker, P.A., Rittinger, K., Gamblin, S.J., Smerdon, S.J.(2001) Nature 411: 215-219
- PubMed: 11346801 
- DOI: 10.1038/35075620
- Primary Citation of Related Structures:  
1I49, 1I4D, 1I4L, 1I4T - PubMed Abstract: 
Small G proteins are GTP-dependent molecular switches that regulate numerous cellular functions. They can be classified into homologous subfamilies that are broadly associated with specific biological processes. Cross-talk between small G-protein families has an important role in signalling, but the mechanism by which it occurs is poorly understood ...