1khv: Difference between revisions

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[[Image:1khv.jpg|left|200px]]
{{Seed}}
[[Image:1khv.png|left|200px]]


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{{STRUCTURE_1khv|  PDB=1khv  |  SCENE=  }}  
{{STRUCTURE_1khv|  PDB=1khv  |  SCENE=  }}  


'''Crystal Structure of Rabbit Hemorrhagic Disease Virus RNA-dependent RNA polymerase complexed with Lu3+'''
===Crystal Structure of Rabbit Hemorrhagic Disease Virus RNA-dependent RNA polymerase complexed with Lu3+===




==Overview==
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The structure of the RNA-dependent RNA polymerase (RdRP) from the rabbit hemorrhagic disease virus has been determined by x-ray crystallography to a 2.5-A resolution. The overall structure resembles a "right hand," as seen before in other polymerases, including the RdRPs of polio virus and hepatitis C virus. Two copies of the polymerase are present in the asymmetric unit of the crystal, revealing active and inactive conformations within the same crystal form. The fingers and palm domains form a relatively rigid unit, but the thumb domain can adopt either "closed" or "open" conformations differing by a rigid body rotation of approximately 8 degrees. Metal ions bind at different positions in the two conformations and suggest how structural changes may be important to enzymatic function in RdRPs. Comparisons between the structures of the alternate conformational states of rabbit hemorrhagic disease virus RdRP and the structures of RdRPs from hepatitis C virus and polio virus suggest novel structure-function relationships in this medically important class of enzymes.
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{{ABSTRACT_PUBMED_11677245}}


==About this Structure==
==About this Structure==
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[[Category: Vazquez, A L.]]
[[Category: Vazquez, A L.]]
[[Category: Rna-dependent rna polymerase]]
[[Category: Rna-dependent rna polymerase]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:46:01 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 10:22:18 2008''

Revision as of 07:22, 2 July 2008

File:1khv.png

Template:STRUCTURE 1khv

Crystal Structure of Rabbit Hemorrhagic Disease Virus RNA-dependent RNA polymerase complexed with Lu3+

Template:ABSTRACT PUBMED 11677245

About this Structure

1KHV is a Single protein structure of sequence from Rabbit hemorrhagic disease virus. Full crystallographic information is available from OCA.

Reference

Crystal structures of active and inactive conformations of a caliciviral RNA-dependent RNA polymerase., Ng KK, Cherney MM, Vazquez AL, Machin A, Alonso JM, Parra F, James MN, J Biol Chem. 2002 Jan 11;277(2):1381-7. Epub 2001 Oct 24. PMID:11677245

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