The structural basis of phage display elucidated by the crystal structure of the N-terminal domains of g3p.Lubkowski, J., Hennecke, F., Pluckthun, A., Wlodawer, A.
(1998) Nat Struct Biol 5: 140-147
- PubMed: 9461080
- DOI: https://doi.org/10.1038/nsb0298-140
- Primary Citation of Related Structures:
- PubMed Abstract:
The structure of the two N-terminal domains of the gene 3 protein of filamentous phages (residues 1-217) has been solved by multiwavelength anomalous diffraction and refined at 1.46 A resolution. Each domain consists of either five or eight beta-strands and a single alpha-helix. Despite missing sequence homology, their cores superimposed with a root-mean-square deviation of 2 A. The domains are engaged in extensive interactions, resulting in a horseshoe shape with aliphatic amino acids and threonines lining the inside, delineating the likely binding site for the F-pilus. The glycine-rich linker connecting the domains is invisible in the otherwise highly ordered structure and may confer flexibility between the domains required during the infection process.
Macromolecular Structure Laboratory, ABL-Basic Research Program, NCI-FCRDC, Frederick, Maryland 21702, USA.