Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 406

The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

EK2 Derivatives of Bacteriophage Lambda Useful in the Cloning of DNA from Higher Organisms: The λgt WES System

Leder, P., Tiemeier, D., Enquist, L.·1977·Science

Abstract

A derivative of bacteriophage λ has been modified and tested together with an appropriate host system to meet the criteria of EK2 biologic containment for cloning DNA from higher organisms. In this report certain of the safety features are summarized and some of the tests carried out to confirm the containment properties of the vector are described. The cloning efficiency of this system, together with available gene purification and hybrid screening technology, indicate that it can be used to clone DNA fragments carrying specific, unique mammalian genes.

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 · 10.1126/science.322278

Cites

4 of 4 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 4 references

Cited by

See all 406

Metadata

Authors
Leder, P., Tiemeier, D., & Enquist, L.
Venue
Science
Published
1977-04-08
Volume
196
Issue
4286
Pages
175-177
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2035520923
Cited by
406
References
4
FWCI
29.47
Type
journal article
Language
en
Open access
closed

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: EK2 Derivatives of Bacteriophage Lambda Useful in the Cloning of DNA from Higher Organisms: The λgt WES System. https://app.cochat.ai/papers/10.1126/science.322278
The paper
Leder, P., Tiemeier, D., & Enquist, L. (1977). EK2 Derivatives of Bacteriophage Lambda Useful in the Cloning of DNA from Higher Organisms: The λgt WES System. Science. https://doi.org/10.1126/science.322278

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.