2bld

From Proteopedia

THE QUASI-ATOMIC MODEL OF HUMAN ADENOVIRUS TYPE 5 CAPSID (PART 1)

Overview

Adenoviruses infect a wide range of vertebrates including humans. Their, icosahedral capsids are composed of three major proteins: the trimeric, hexon forms the facets and the penton, a noncovalent complex of the, pentameric penton base and trimeric fibre proteins, is located at the 12, capsid vertices. Several proteins (IIIa, VI, VIII and IX) stabilise the, capsid. We have obtained a 10 A resolution map of the human adenovirus 5, by image analysis from cryo-electron micrographs (cryoEMs). This map, in, combination with the X-ray structures of the penton base and hexon, was, used to build a quasi-atomic model of the arrangement of the two major, capsid components and to analyse the hexon-hexon and hexon-penton, interactions. The secondary proteins, notably VIII, were located by, comparing cryoEM maps of native and pIX deletion mutant virions. Minor, proteins IX and IIIa are located on the outside of the capsid, whereas, protein VIII is organised with a T=2 lattice on the inner face of the, capsid. The capsid organisation is compared with the known X-ray structure, of bacteriophage PRD1.

About this Structure

2BLD is a Protein complex structure of sequences from Human adenovirus type 4. Full crystallographic information is available from OCA.

Reference

A quasi-atomic model of human adenovirus type 5 capsid., Fabry CM, Rosa-Calatrava M, Conway JF, Zubieta C, Cusack S, Ruigrok RW, Schoehn G, EMBO J. 2005 May 4;24(9):1645-54. Epub 2005 Apr 21. PMID:15861131

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