Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/38611
Título : Adsorption of bacteriophage ø29 to Bacillus subtilis through the neck appendages of the viral particle
Autor : Villanueva, N., Salas, Margarita
Fecha de publicación : Apr-1981
Editor: American Society for Microbiology
Citación : Journal of Virology 38(1): 15-19 (1981)
Resumen: Phage phi 29 particles produced under restrictive conditions by mutants in gene 12 have normal amounts of all of the structural proteins except the appendage protein, p12*, which is missing. These particles are not infective and do not adsorb to Bacillus subtilis cells. By in vitro complementation of 12- particles with extracts containing protein p12* or with purified protein p12*, the defective particles could bind the appendage protein and become infective and able to adsorb to bacteria. Therefore, the neck appendages of phage phi 29, formed by protein p12*, are involved in the interaction of the phage with the cell wall receptors. Protein p12*, purified in its native state, competed with wild-type phage for adsorption to bacteria. Also, protein p12* could displace adsorbed phage from bacteria. Since the displaced phage was infective, protein p12* does not seem to be modified after phage adsorption.
Versión del editor: http://jvi.asm.org/cgi/reprint/38/1/15
URI : http://hdl.handle.net/10261/38611
ISSN: 0022-538X
Citación : Journal of Virology 38(1): 15-19 (1981)
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