Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 269

The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.

The particle SSV1 from the extremely thermophilic archaeon Sulfolobus is a virus: demonstration of infectivity and of transfection with viral DNA.

Open access
Schleper, C, Kubo, K, Zillig, W·1992·Proceedings of the National Academy of Sciences

Abstract

The lemon-shaped "virus-like" particle SSV1 produced by the thermophilic archaeon Sulfolobus shibatae has not previously been observed to infect any host. Using a plaque assay suitable for the extreme growth conditions of this archaeon, we have shown infection of Sulfolobus solfataricus by SSV1. Upon infection, the viral genome was always found integrated into a tRNA gene of the host chromosome, a situation similar to that in S. shibatae, proving that site-specific integration is involved in establishing the lysogenic state. As in S. shibatae, UV-irradiation of lysogenized S. solfataricus led to virus production apparently not accompanied by cell lysis. We have also demonstrated the efficient uptake of exogenous DNA and its expression in Sulfolobus by transfecting S. solfataricus with SSV1 DNA by electroporation. Transfection efficiencies of up to 10(6) transfectants per microgram of DNA were obtained.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1073/pnas.89.16.7645

Cites

20 of 20 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 20 references

Cited by

See all 269

Metadata

Authors
Schleper, C., Kubo, K., & Zillig, W.
Venue
Proceedings of the National Academy of Sciences
Published
1992-08-15
Volume
89
Issue
16
Pages
7645-7649
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2036821612
Cited by
269
References
20
FWCI
5.45
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: The particle SSV1 from the extremely thermophilic archaeon Sulfolobus is a virus: demonstration of infectivity and of transfection with viral DNA. https://app.cochat.ai/papers/10.1073/pnas.89.16.7645
The paper
Schleper, C., Kubo, K., & Zillig, W. (1992). The particle SSV1 from the extremely thermophilic archaeon Sulfolobus is a virus: demonstration of infectivity and of transfection with viral DNA. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.89.16.7645

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.