Evidence map›Paper›PMID 9658098›Full record

ArticleJournal of virology1998

Template-dependent initiation of Sindbis virus RNA replication in vitro.

J A Lemm, A Bergqvist, C M Read, C M Rice

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

55 citing papers in PubMed, 97 citations in OpenAlex.

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  7. Journal of virology · 2024
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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

4 authors at 1 institution in 1 country.

J A LemmDepartment of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri 63110-1093, USA.
A Bergqvist
C M Read
C M Rice
Washington University in St. Louis · US

Funding

MOLECULAR GENETICS OF SINDBIS VIRUS REPLICATIONR37AI024134 · NIAID · WASHINGTON UNIVERSITY · PI RICE, CHARLES M. · 1996 to 2005
$2.2M
MOLECULAR GENETICS OF SINDBIS VIRUS REPLICATIONR01AI024134 · NIAID · WASHINGTON UNIVERSITY · PI RICE, CHARLES M. · 1987 to 1994
–
NIAID NIH HHS AI24134NIAID NIH HHS R37 AI024134
6 · The paper itself

Abstract

Recent insights into the early events in Sindbis virus RNA replication suggest a requirement for either the P123 or P23 polyprotein, as well as mature nsP4, the RNA-dependent RNA polymerase, for initiation of minus-strand RNA synthesis. Based on this observation, we have succeeded in reconstituting an in vitro system for template-dependent initiation of SIN RNA replication. Extracts were isolated from cells infected with vaccinia virus recombinants expressing various SIN proteins and assayed by the addition of exogenous template RNAs. Extracts from cells expressing P123C>S, a protease-defective P123 polyprotein, and nsP4 synthesized a genome-length minus-sense RNA product. Replicase activity was dependent upon addition of exogenous RNA and was specific for alphavirus plus-strand RNA templates. RNA synthesis was also obtained by coexpression of nsP1, P23C>S, and nsP4. However, extracts from cells expressing nsP4 and P123, a cleavage-competent P123 polyprotein, had much less replicase activity. In addition, a P123 polyprotein containing a mutation in the nsP2 protease which increased the efficiency of processing exhibited very little, if any, replicase activity. These results provide further evidence that processing of the polyprotein inactivates the minus-strand initiation complex. Finally, RNA synthesis was detected when soluble nsP4 was added to a membrane fraction containing P123C>S, thus providing a functional assay for purification of the nsP4 RNA polymerase.

Indexed as

Virus ReplicationAnimalsCell LineCricetinaeDNA-Directed RNA PolymerasesRNA-Dependent RNA PolymeraseRNA, ViralSindbis VirusSolubilitySubstrate SpecificityTemplates, GeneticViral Nonstructural ProteinsDNA-Directed RNA PolymerasesRNA-Dependent RNA PolymeraseRNA, ViralViral Nonstructural Proteins

Identifiers

PMID9658098
PMCPMC109826
OpenAlexW2116621112

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.