Crystal structure of the conserved core of HIV-1 Nef complexed with a Src family SH3 domain.
Lee, C.H., Saksela, K., Mirza, U.A., Chait, B.T., Kuriyan, J.(1996) Cell 85: 931-942
- PubMed: 8681387 
- DOI: 10.1016/s0092-8674(00)81276-3
- Primary Citation of Related Structures:  
1EFN - PubMed Abstract: 
The crystal structure of the conserved core of HIV-1 Nef has been determined in complex with the SH3 domain of a mutant Fyn tyrosine kinase (a single amino acid substitution, Arg-96 to isoleucine), to which Nef binds tightly. The conserved PxxP sequence motif of Nef, known to be important for optimal viral replication, is part of a polyproline type II helix that engages the SH3 domain in a manner resembling closely the interaction of isolated peptides with SH3 domains ...