Evidence map›Paper›PMID 20961592›Full record

ArticleVirology2010

Identification of aromatic amino acid residues in conserved region VI of the large polymerase of vesicular stomatitis virus is essential for both guanine-N-7 and ribose 2'-O methyltransferases.

Xiaodong Zhang, Yongwei Wei, Yuanmei Ma, Songhua Hu, Jianrong Li

Abstract read
In one paragraph

Article in Virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

3 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Xiaodong ZhangCollege of Animal Science, Zhejiang University, Hangzhou, Zhejiang, China.
Yongwei Wei
Yuanmei Ma
Songhua Hu
Jianrong Li

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Non-segmented negative-sense RNA viruses possess a unique mechanism for mRNA cap methylation. For vesicular stomatitis virus, conserved region VI in the large (L) polymerase protein catalyzes both guanine-N-7 (G-N-7) and ribose 2'-O (2'-O) methyltransferases, and the two methylases share a binding site for the methyl donor S-adenosyl-l-methionine. Unlike conventional mRNA cap methylation, the 2'-O methylation of VSV precedes subsequent G-N-7 methylation. In this study, we found that individual alanine substitutions in two conserved aromatic residues (Y1650 and F1691) in region VI of L protein abolished both G-N-7 and 2'-O methylation. However, replacement of one aromatic residue with another aromatic residue did not significantly affect the methyltransferase activities. Our studies provide genetic and biochemical evidence that conserved aromatic residues in region VI of L protein essential for both G-N-7 and 2'-O methylations. In combination with the structural prediction, our results suggest that these aromatic residues may participate in RNA recognition.

Indexed as

Amino Acids, AromaticAmino Acid SequenceAmino Acid SubstitutionAnimalsCatalytic DomainCell LineConserved SequenceDNA-Directed RNA PolymerasesMethylationMethyltransferasesModels, MolecularMolecular Sequence DataMutagenesis, Site-DirectedMutationRecombinant ProteinsRNA CapsAmino Acids, AromaticDNA-Directed RNA PolymerasesL polymerase protein, Vesicular stomatitis-Indiana virusMethyltransferasesRecombinant ProteinsRNA CapsRNA, ViralViral Proteins

Identifiers

PMID20961592
PMCPMC7111938

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.