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PMID:15071181

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Citation

Fokine, A, Chipman, PR, Leiman, PG, Mesyanzhinov, VV, Rao, VB and Rossmann, MG (2004) Molecular architecture of the prolate head of bacteriophage T4. Proc. Natl. Acad. Sci. U.S.A. 101:6003-8

Abstract

The head of bacteriophage T4 is a prolate icosahedron with one unique portal vertex to which the phage tail is attached. The three-dimensional structure of mature bacteriophage T4 head has been determined to 22-A resolution by using cryo-electron microscopy. The T4 capsid has a hexagonal surface lattice characterized by the triangulation numbers T(end) = 13 laevo for the icosahedral caps and T(mid) = 20 for the midsection. Hexamers of the major capsid protein gene product (gp)23* and pentamers of the vertex protein gp24*, as well as the outer surface proteins highly antigenic outer capsid protein (hoc) and small outer capsid protein (soc), are clearly evident in the reconstruction. The size and shape of the gp23* hexamers are similar to the major capsid protein organization of bacteriophage HK97. The binding sites and shape of the hoc and soc proteins have been established by analysis of the soc(-) and hoc(-)soc(-) T4 structures.

Links

PubMed PMC395913 Online version:10.1073/pnas.0400444101

Keywords

Bacteriophage T4/chemistry; Bacteriophage T4/ultrastructure; Cryoelectron Microscopy

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

Notes

See also

References

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