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Article

Structure and size determination of bacteriophage P2 and P4 procapsids: function of size responsiveness mutations.

Journal of structural biology - 1 Jun 2012

Dearborn Altaira D, Laurinmaki Pasi, Chandramouli Preethi, Rodenburg Cynthia M, Wang Sifang, Butcher Sarah J, Dokland Terje

Abstract excerpt

Bacteriophage P4 is dependent on structural proteins supplied by a helper phage, P2, to assemble infectious virions. Bacteriophage P2 normally forms an icosahedral capsid with T=7 symmetry from the gpN capsid protein, the gpO scaffolding protein and the gpQ portal protein. In the presence of P4, however, the same structural proteins are assembled into a smaller capsid with T=4 symmetry. This size determination is...

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Identifiers

PMID: 22508104
DOI: 10.1016/j.jsb.2012.04.002
PMCID: PMC3361666

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Source receipt: pubmed, retrieved 7 Sept 2026.

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