Primary Citation of Related Structures: 1N7U, 1N7V
PubMed Abstract:
Bacteriophage PRD1 is unusual, with an internal lipid membrane, but has striking resemblances to adenovirus that include receptor binding spikes. The PRD1 vertex complex contains P2, a 590 residue monomer that binds to receptors on antibiotic-resistant strains of E ...
Bacteriophage PRD1 is unusual, with an internal lipid membrane, but has striking resemblances to adenovirus that include receptor binding spikes. The PRD1 vertex complex contains P2, a 590 residue monomer that binds to receptors on antibiotic-resistant strains of E. coli and so is the functional counterpart to adenovirus fiber. P2 structures from two crystal forms, at 2.2 and 2.4 A resolution, reveal an elongated club-shaped molecule with a novel beta propeller "head" showing pseudo-6-fold symmetry. An extended loop with another novel fold forms a long "tail" containing a protruding proline-rich "fin." The head and fin structures are well suited to recognition and attachment, and the tail is likely to trigger the processes of vertex disassembly, membrane tube formation, and subsequent DNA injection.
Related Citations:
Crystallization and preliminary X-ray analysis of receptor-binding
protein P2 of bacteriopahge PRD1 Xu, L., Butcher, S.J., Benson, S.D., Bamford, D.H., Burnett, R.M. (2000) J Struct Biol 131: 159
Stable packing of phage PRD1 DNA requires adsorption protein P2,
which binds to the IncP plasmid-encoded conjugative transfer complex Grahn, A.M., Caldentey, J., Bamford, J.K.H., Bamford, D.H. (1999) J Bacteriol 181: 6689
Bacteriophage PRD1: a broad host range dsDNA tectivirus with an internal membrane Bamford, D.H., Caldentey, J., Bamford, J.K.H. (1995) Adv Virus Res 45: 281
Viral evolution revealed by bacteriophage PRD1 and human adenovirus coat protein structures Benson, S.D., Bamford, J.K.H., Bamford, D.H., Burnett, R.M. (1999) Cell 98: 825
Bacteriophage PRD1 contains a labile receptor-binding structure at each vertex Rydman, P.S., Caldentey, J., Butcher, S.J., Fuller, S.D., Rutten, T., Bamford, D.H. (1999) J Mol Biol 291: 575
A tale of two viruses with therapeutic potential:
Structural studies on CELO, an avian adenovirus and the bacteriophage PRD1 Xu, L. (2002) Thesis --: --
Organizational Affiliation:
The Wistar Institute, 3601 Spruce Street, Philadelphia, PA 19104, USA.
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