1jo7

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{{STRUCTURE_1jo7| PDB=1jo7 | SCENE= }}
{{STRUCTURE_1jo7| PDB=1jo7 | SCENE= }}
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'''Solution Structure of Influenza A Virus Promoter'''
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===Solution Structure of Influenza A Virus Promoter===
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==Overview==
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The influenza A virus, a severe pandemic pathogen, has a segmented RNA genome consisting of eight single-stranded RNA molecules. The 5' and 3' ends of each RNA segment recognized by the influenza A virus RNA-dependent RNA polymerase direct both transcription and replication of the virus's RNA genome. Promoter binding by the viral RNA polymerase and formation of an active open complex are prerequisites for viral replication and proliferation. Here we describe the solution structure of this promoter as solved by multidimensional, heteronuclear magnetic resonance spectroscopy. Our studies show that the viral promoter has a significant dynamic nature and reveal an unusual displacement of an adenosine that forms a novel (A-A) x U motif and a C-A mismatch stacked in a helix. The characterized structural features of the promoter imply that the specificity of polymerase binding results from an internal RNA loop. In addition, an unexpected bending (46 +/- 10 degrees ) near the initiation site suggests the existence of a promoter recognition mechanism similar to that of DNA-dependent RNA polymerase and a possible regulatory function for the terminal structure during open complex formation.
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The line below this paragraph, {{ABSTRACT_PUBMED_11553808}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 11553808 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11553808}}
==About this Structure==
==About this Structure==
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JO7 OCA].
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Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JO7 OCA].
==Reference==
==Reference==
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[[Category: Rna panhandle]]
[[Category: Rna panhandle]]
[[Category: Uucg]]
[[Category: Uucg]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 21:29:45 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 20:32:45 2008''

Revision as of 17:32, 1 July 2008

Image:1jo7.png

Template:STRUCTURE 1jo7

Solution Structure of Influenza A Virus Promoter

Template:ABSTRACT PUBMED 11553808

About this Structure

Full experimental information is available from OCA.

Reference

Structural features of an influenza virus promoter and their implications for viral RNA synthesis., Bae SH, Cheong HK, Lee JH, Cheong C, Kainosho M, Choi BS, Proc Natl Acad Sci U S A. 2001 Sep 11;98(19):10602-7. PMID:11553808

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