Evidence map›Paper›PMID 34428301›Full record

ArticleNucleic acids research2021

Unraveling the functions of uncharacterized transcription factors in Escherichia coli using ChIP-exo.

Ye Gao, Hyun Gyu Lim, Hans Verkler, Richard Szubin, Daniel Quach, Irina Rodionova, Ke Chen, James T Yurkovich, Byung-Kwan Cho, Bernhard O Palsson

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
7.1field-weighted citation impact, top 3% 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

34 citing papers in PubMed, 54 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

10 authors at 3 institutions in 3 countries.

Ye GaoDepartment of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA.ORCID 0000-0001-8519-1392
Hyun Gyu LimDepartment of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
Hans VerklerDepartment of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
Richard SzubinDepartment of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
Daniel QuachDepartment of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA.
Irina RodionovaDepartment of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.ORCID 0000-0002-6500-2758
Ke ChenDepartment of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
James T YurkovichDepartment of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
Byung-Kwan ChoDepartment of Biological Sciences and KI for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.ORCID 0000-0003-4788-4184
Bernhard O PalssonDepartment of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.ORCID 0000-0003-2357-6785
University of California San Diego · USKorea Advanced Institute of Science and Technology · KRNovo Nordisk Foundation · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacteria regulate gene expression to adapt to changing environments through transcriptional regulatory networks (TRNs). Although extensively studied, no TRN is fully characterized since the identity and activity of all the transcriptional regulators comprising a TRN are not known. Here, we experimentally evaluate 40 uncharacterized proteins in Escherichia coli K-12 MG1655, which were computationally predicted to be transcription factors (TFs). First, we used a multiplexed chromatin immunoprecipitation method combined with lambda exonuclease digestion (multiplexed ChIP-exo) assay to characterize binding sites for these candidate TFs; 34 of them were found to be DNA-binding proteins. We then compared the relative location between binding sites and RNA polymerase (RNAP). We found 48% (283/588) overlap between the TFs and RNAP. Finally, we used these data to infer potential functions for 10 of the 34 TFs with validated DNA binding sites and consensus binding motifs. Taken together, this study: (i) significantly expands the number of confirmed TFs to 276, close to the estimated total of about 280 TFs; (ii) provides putative functions for the newly discovered TFs and (iii) confirms the functions of four representative TFs through mutant phenotypes.

Indexed as

Binding SitesChromatin Immunoprecipitation SequencingEscherichia coli K12Escherichia coli ProteinsTranscription FactorsEscherichia coli ProteinsTranscription FactorsYidZ protein, E coli

Identifiers

PMID34428301
PMCPMC8464067
OpenAlexW3193916265

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.