2obr

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{{STRUCTURE_2obr| PDB=2obr | SCENE= }}
{{STRUCTURE_2obr| PDB=2obr | SCENE= }}
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'''Crystal Structures of P Domain of Norovirus VA387'''
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===Crystal Structures of P Domain of Norovirus VA387===
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==Overview==
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Noroviruses are one of the major causes of nonbacterial gastroenteritis epidemics in humans. Recent studies on norovirus receptors show that different noroviruses recognize different human histo-blood group antigens (HBGAs), and eight receptor binding patterns of noroviruses have been identified. The P domain of the norovirus capsids is directly involved in this recognition. To determine the precise locations and receptor binding modes of HBGA carbohydrates on the viral capsids, a recombinant P protein of a GII-4 strain norovirus, VA387, was cocrystallized with synthetic type A or B trisaccharides. Based on complex crystal structures observed at a 2.0-A resolution, we demonstrated that the receptor binding site lies at the outermost end of the P domain and forms an extensive hydrogen-bonding network with the saccharide ligand. The A and B trisaccharides display similar binding modes, and the common fucose ring plays a key role in this interaction. The extensive interface between the two protomers in a P dimer also plays a crucial role in the formation of the receptor binding interface.
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{{ABSTRACT_PUBMED_17392366}}
==About this Structure==
==About this Structure==
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[[Category: Norovirus va387]]
[[Category: Norovirus va387]]
[[Category: P domain]]
[[Category: P domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 08:50:57 2008''

Revision as of 05:51, 28 July 2008

Image:2obr.png

Template:STRUCTURE 2obr

Crystal Structures of P Domain of Norovirus VA387

Template:ABSTRACT PUBMED 17392366

About this Structure

2OBR is a Single protein structure of sequence from Norovirus. Full crystallographic information is available from OCA.

Reference

Structural basis for the recognition of blood group trisaccharides by norovirus., Cao S, Lou Z, Tan M, Chen Y, Liu Y, Zhang Z, Zhang XC, Jiang X, Li X, Rao Z, J Virol. 2007 Jun;81(11):5949-57. Epub 2007 Mar 28. PMID:17392366

Page seeded by OCA on Mon Jul 28 08:50:57 2008

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