Crystal structure of M tuberculosis ABC phosphate transport receptor: specificity and charge compensation dominated by ion-dipole interactions.
Vyas, N.K., Vyas, M.N., Quiocho, F.A.(2003) Structure 11: 765-774
- PubMed: 12842040 
- DOI: 10.1016/s0969-2126(03)00109-6
- Primary Citation of Related Structures:  
1PC3 - PubMed Abstract: 
The 2.16 A structure of the phosphate-bound PstS-1, the primary extracellular receptor for the ABC phosphate transporter and immunodominant species-specific antigen of Mycobacterium tuberculosis, has been determined. The phosphate, completely engulfed in the cleft between two domains, is bound by 13 hydrogen bonds, 11 of which are formed with NH and OH dipolar donor groups ...