Evidence map›Paper›PMID 18632861›Full record

ArticleJournal of virology2008

The crystal structure of coxsackievirus B3 RNA-dependent RNA polymerase in complex with its protein primer VPg confirms the existence of a second VPg binding site on Picornaviridae polymerases.

Arnaud Gruez, Barbara Selisko, Michael Roberts, Gérard Bricogne, Cécile Bussetta, Ilham Jabafi, Bruno Coutard, Armando M De Palma, Johan Neyts, Bruno Canard

Abstract read
In one paragraph

Article in Journal of virology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

57 citing papers in PubMed.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Arnaud GruezArchitecture et Fonction des Macromolécules Biologiques, CNRS and Universités d'Aix-Marseille I et II, UMR 6098, ESIL Case 925, 13288 Marseille, France.
Barbara Selisko
Michael Roberts
Gérard Bricogne
Cécile Bussetta
Ilham Jabafi
Bruno Coutard
Armando M De Palma
Johan Neyts
Bruno Canard

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The RNA-dependent RNA polymerase (RdRp) is a central piece in the replication machinery of RNA viruses. In picornaviruses this essential RdRp activity also uridylates the VPg peptide, which then serves as a primer for RNA synthesis. Previous genetic, binding, and biochemical data have identified a VPg binding site on poliovirus RdRp and have shown that is was implicated in VPg uridylation. More recent structural studies have identified a topologically distinct site on the closely related foot-and-mouth disease virus RdRp supposed to be the actual VPg-primer-binding site. Here, we report the crystal structure at 2.5-A resolution of active coxsackievirus B3 RdRp (also named 3D(pol)) in a complex with VPg and a pyrophosphate. The pyrophosphate is situated in the active-site cavity, occupying a putative binding site either for the coproduct of the reaction or an incoming NTP. VPg is bound at the base of the thumb subdomain, providing first structural evidence for the VPg binding site previously identified by genetic and biochemical methods. The binding mode of VPg to CVB3 3D(pol) at this site excludes its uridylation by the carrier 3D(pol). We suggest that VPg at this position is either uridylated by another 3D(pol) molecule or that it plays a stabilizing role within the uridylation complex. The CVB3 3D(pol)/VPg complex structure is expected to contribute to the understanding of the multicomponent VPg-uridylation complex essential for the initiation of genome replication of picornaviruses.

Indexed as

Amino Acid SequenceBinding SitesCrystallography, X-RayDiphosphatesEnterovirusGenome, ViralGuanosine TriphosphateMolecular ConformationMolecular Sequence DataPeptidesPicornaviridaeProtein BindingRNA-Dependent RNA PolymeraseSequence Homology, Amino AcidVirus ReplicationDiphosphatesGuanosine TriphosphatePeptidesRNA-Dependent RNA Polymerase

Identifiers

PMID18632861
PMCPMC2546979

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.