Evidence map›Paper›PMID 12021354›Full record

ArticleJournal of virology2002

Subcellular localization and integration activities of rous sarcoma virus reverse transcriptase.

Susanne Werner, Patrick Hindmarsh, Markus Napirei, Karin Vogel-Bachmayr, Birgitta M Wöhrl

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In one paragraph

Article in Journal of virology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.5field-weighted citation impact, top 45% 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

8 citing papers in PubMed, 9 citations in OpenAlex.

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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 at 4 institutions in 2 countries.

Susanne WernerMax-Planck-Institut für Molekulare Physiologie, Abteilung Physikalische Biochemie, 44227 Dortmund, Germany.
Patrick Hindmarsh
Markus Napirei
Karin Vogel-Bachmayr
Birgitta M Wöhrl
Max Planck Institute of Molecular Physiology · DEMax Planck Society · DENorthwestern University · USRuhr University Bochum · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reverse transcriptases (RTs) alphabeta and beta from avian Rous sarcoma virus (RSV) harbor an integrase domain which is absent in nonavian retroviral RTs. RSV integrase contains a nuclear localization signal which enables the enzyme to enter the nucleus of the cell in order to perform integration of the proviral DNA into the host genome. In the present study we analyzed the subcellular localization of RSV RT, since previous results indicated that RSV finishes synthesis of the proviral DNA in the nucleus. Our results demonstrate that the heterodimeric RSV RT alphabeta and the beta subunit, when expressed independently, can be detected in the nucleus, whereas the separate alpha subunit lacking the integrase domain is prevalent in the cytoplasm. These data suggest an involvement of RSV RT in the transport of the preintegration complex into the nucleus. In addition, to analyze whether the integrase domain, located at the carboxyl terminus of beta, exhibits integration activities, we investigated the nicking and joining activities of heterodimeric RSV RT alphabeta with an oligodeoxynucleotide-based assay system and with a donor substrate containing the supF gene flanked by the viral long terminal repeats. Our data show that RSV RT alphabeta is able to perform the integration reaction in vitro; however, it does so with an estimated 30-fold lower efficiency than the free RSV integrase, indicating that RSV RT is not involved in integration in vivo. Integration with RSV RT alphabeta could be stimulated in the presence of human immunodeficiency virus type 1 nucleocapsid protein or HMG-I(Y).

Indexed as

Virus Integration3T3 CellsAnimalsAvian Sarcoma VirusesDNA, ViralIntegrasesMiceOligodeoxyribonucleotidesRNA-Directed DNA PolymeraseSubcellular FractionsDNA, ViralIntegrasesOligodeoxyribonucleotidesRNA-Directed DNA Polymerase

Identifiers

PMID12021354
PMCPMC136205
OpenAlexW1972206825

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.