1muk: Difference between revisions

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{{STRUCTURE_1muk|  PDB=1muk  |  SCENE=  }}  
{{STRUCTURE_1muk|  PDB=1muk  |  SCENE=  }}  


'''reovirus lambda3 native structure'''
===reovirus lambda3 native structure===




==Overview==
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The reovirus polymerase and those of other dsRNA viruses function within the confines of a protein capsid to transcribe the tightly packed dsRNA genome segments. The crystal structure of the reovirus polymerase, lambda3, determined at 2.5 A resolution, shows a fingers-palm-thumb core, similar to those of other viral polymerases, surrounded by major N- and C-terminal elaborations, which create a cage-like structure, with four channels leading to the catalytic site. This "caged" polymerase has allowed us to visualize the results of several rounds of RNA polymerization directly in the crystals. A 5' cap binding site on the surface of lambda3 suggests a template retention mechanism by which attachment of the 5' end of the plus-sense strand facilitates insertion of the 3' end of the minus-sense strand into the template channel.
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{{ABSTRACT_PUBMED_12464184}}


==About this Structure==
==About this Structure==
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[[Category: Single subunit polymerase fold]]
[[Category: Single subunit polymerase fold]]
[[Category: Thumb]]
[[Category: Thumb]]
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