1l7h

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[[Image:1l7h.gif|left|200px]]
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{{Seed}}
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[[Image:1l7h.png|left|200px]]
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{{STRUCTURE_1l7h| PDB=1l7h | SCENE= }}
{{STRUCTURE_1l7h| PDB=1l7h | SCENE= }}
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'''Crystal structure of R292K mutant influenza virus neuraminidase in complex with BCX-1812'''
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===Crystal structure of R292K mutant influenza virus neuraminidase in complex with BCX-1812===
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==Overview==
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Zanamivir and oseltamivir, specific inhibitors of influenza virus neuraminidase, have significantly different characteristics in resistance studies. In both cases resistance is known to arise through mutations in either the hemagglutinin or neuraminidase surface proteins. A new inhibitor under development by Biocryst Pharmaceuticals, BCX-1812, has both a guanidino group, as in zanamivir, and a bulky hydrophobic group, as in oseltamivir. Using influenza A/NWS/Tern/Australia/G70C/75 (H1N9), neuraminidase variants E119G and R292K have previously been selected by different inhibitors. The sensitivity of these variants to BCX-1812 has now been measured and found in both cases to be intermediate between those of zanamivir and oseltamivir. In addition, the X-ray crystal structures of the complexes of BCX-1812 with the wild type and the two mutant neuraminidases were determined. The ligand is bound in an identical manner in each structure, with a rearrangement of the side chain of E276 from its ligand-free position. A structural explanation of the mechanism of resistance of BCX-1812, relative to zanamivir and oseltamivir in particular, is provided.
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The line below this paragraph, {{ABSTRACT_PUBMED_12014958}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 12014958 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12014958}}
==About this Structure==
==About this Structure==
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[[Category: N9 neuraminidase]]
[[Category: N9 neuraminidase]]
[[Category: R292k mutant]]
[[Category: R292k mutant]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 23:37:39 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 11:52:27 2008''

Revision as of 08:52, 2 July 2008

Image:1l7h.png

Template:STRUCTURE 1l7h

Crystal structure of R292K mutant influenza virus neuraminidase in complex with BCX-1812

Template:ABSTRACT PUBMED 12014958

About this Structure

1L7H is a Single protein structure of sequence from Unidentified influenza virus. Full crystallographic information is available from OCA.

Reference

Structural studies of the resistance of influenza virus neuramindase to inhibitors., Smith BJ, McKimm-Breshkin JL, McDonald M, Fernley RT, Varghese JN, Colman PM, J Med Chem. 2002 May 23;45(11):2207-12. PMID:12014958

Page seeded by OCA on Wed Jul 2 11:52:27 2008

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