1mwh

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REOVIRUS POLYMERASE LAMBDA3 BOUND TO MRNA CAP ANALOGREOVIRUS POLYMERASE LAMBDA3 BOUND TO MRNA CAP ANALOG

Structural highlights

1mwh is a 1 chain structure with sequence from Reovirus sp.. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:,
Gene:L1 (Reovirus sp.)
Resources:FirstGlance, OCA, RCSB, PDBsum

Publication Abstract from PubMed

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.

RNA synthesis in a cage--structural studies of reovirus polymerase lambda3.,Tao Y, Farsetta DL, Nibert ML, Harrison SC Cell. 2002 Nov 27;111(5):733-45. PMID:12464184[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Tao Y, Farsetta DL, Nibert ML, Harrison SC. RNA synthesis in a cage--structural studies of reovirus polymerase lambda3. Cell. 2002 Nov 27;111(5):733-45. PMID:12464184

1mwh, resolution 2.50Å

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