Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 529

The DOI matches its Crossref record.

A large family of bacterial activator proteins.

Open access
Henikoff, S, Haughn, G W, Calvo, J M, Wallace, J C·1988·Proceedings of the National Academy of Sciences

Abstract

At least nine different bacterial proteins belong to the LysR family. The gene sequence for one of these proteins is presented here. Six others (Escherichia coli LysR, IlvY, CysB; Salmonella typhimurium MetR; Rhizobium NodD; and Enterobacter cloacae AmpR) are known to activate other genes. Based on sequence alignments, each member of this family is predicted to have a helix-turn-helix DNA binding motif near its amino terminus. The combined evidence indicates that all nine proteins are related by common ancestry, are similarly folded, and are not detectably related to other known bacterial regulatory proteins. The DNA database searching procedure and other methods used in this study should be useful in detecting other groups of related proteins.

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.85.18.6602

Cites

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

Cited by

See all 529

Metadata

Authors
Henikoff, S., Haughn, G. W., Calvo, J. M., & Wallace, J. C.
Venue
Proceedings of the National Academy of Sciences
Published
1988-09
Volume
85
Issue
18
Pages
6602-6606
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2156758701
Cited by
529
References
0
FWCI
20.20
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: A large family of bacterial activator proteins. https://app.cochat.ai/papers/10.1073/pnas.85.18.6602
The paper
Henikoff, S., Haughn, G. W., Calvo, J. M., & Wallace, J. C. (1988). A large family of bacterial activator proteins. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.85.18.6602

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.