Evidence map›Paper›PMID 34634934›Full record

ArticlemBio2021

Morphological and Transcriptional Responses to CRISPRi Knockdown of Essential Genes in Escherichia coli.

Melanie R Silvis, Manohary Rajendram, Handuo Shi, Hendrik Osadnik, Andrew N Gray, Spencer Cesar, Jason M Peters, Cameron C Hearne, Parth Kumar, Horia Todor and 2 more

Open access · goldAbstract read
In one paragraph

Article in mBio, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.4field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 65 citations in OpenAlex.

  1. The phenotypic landscape of the model firmicuteProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Systematic CRISPRi screening reveals genetic modulators ofbioRxiv : the preprint server for biology · 2026
    Article
  4. The Metabolic State ofACS infectious diseases · 2026
    Article
  5. Article
  6. Using CRISPRi inJournal of microbiology & biology education · 2025
    Article
  7. Article
  8. Analysis of essential genes inJournal of bacteriology · 2025
    Article
  9. Article
  10. Review
  11. Analysis of Essential Genes inbioRxiv : the preprint server for biology · 2025
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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

12 authors at 4 institutions in 1 country.

Melanie R Silvis *Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, USA.
Manohary Rajendram *Department of Bioengineering, Stanford Universitygrid.168010.e, Stanford, California, USA.
Handuo Shi *Department of Microbiology and Immunology, Stanford Universitygrid.168010.e School of Medicine, Stanford, California, USA.ORCID 0000-0002-1688-6905
Hendrik Osadnik *Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, USA.
Andrew N GrayDepartment of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, USA.
Spencer CesarDepartment of Microbiology and Immunology, Stanford Universitygrid.168010.e School of Medicine, Stanford, California, USA.
Jason M PetersPharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin, USA.ORCID 0000-0003-2722-8382
Cameron C HearneDepartment of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, USA.
Parth KumarDepartment of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, USA.
Horia TodorDepartment of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, USA.
Kerwyn Casey HuangDepartment of Bioengineering, Stanford Universitygrid.168010.e, Stanford, California, USA.ORCID 0000-0002-8043-8138
Carol A GrossDepartment of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, USA.
University of California, San Francisco · USStanford University · USChan Zuckerberg Initiative (United States) · USUniversity of Wisconsin–Madison · US

Funding

GENETICS OF EUCARYOTIC AND PROCARYOTIC ORGANISMST32GM007810 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ASHRAFI, KAVEH, NARLIKAR, GEETA J · 1985 to 2020
$15.1M
Cellular homeostasis pathways in bacteriaR35GM118061 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GROSS, CAROL ANNE · 2016 to 2025
$9.0M
A universal pipeline for functional characterization of the human microbiota at a massive scaleRM1GM135102 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BUIE, CULLEN RICHARD, DEUTSCHBAUER, ADAM M · 2020 to 2024
$7.6M
CRISPR-based Functional Genomics in Pathogenic BacteriaK22AI137122 · NIAID · UNIVERSITY OF WISCONSIN-MADISON · PI PETERS, JASON M. · 2018 to 2019
$269k
Systematic Phenotypic Analysis of the Gram-positive EnvelopeF32GM108222 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PETERS, JASON M. · 2013 to 2016
$161k
Phenotypic profiling of bacterial stress response networks: A transformative framework for characterizing and predicting antibiotic targets and interactionsF32AI133917 · NIAID · STANFORD UNIVERSITY · PI RAJENDRAM, MANOHARY · 2018 to 2020
$151k
NIAID NIH HHS F32 AI133917NIAID NIH HHS K22 AI137122NIGMS NIH HHS F32 GM108222NIGMS NIH HHS R35 GM118061NIGMS NIH HHS RM1 GM135102NIGMS NIH HHS T32 GM007810
6 · The paper itself

Abstract

CRISPR interference (CRISPRi) has facilitated the study of essential genes in diverse organisms using both high-throughput and targeted approaches. Despite the promise of this technique, no comprehensive arrayed CRISPRi library targeting essential genes exists for the model bacterium Escherichia coli, or for any Gram-negative species. Here, we built and characterized such a library. Each of the ∼500 strains in our E. coli library contains an inducible, chromosomally integrated single guide RNA (sgRNA) targeting an essential (or selected nonessential) gene and can be mated with a pseudo-Hfr donor strain carrying a

Indexed as

CRISPR-Cas SystemsGene LibraryTranscription, GeneticBacterial ProteinsEscherichia coliGene Knockdown TechniquesGenes, EssentialHigh-Throughput Screening AssaysBacterial Proteinsarrayed libraryCRISPRiEscherichia coliessential genesmicroscopy

Identifiers

PMID34634934
PMCPMC8510551
OpenAlexW3205106837

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.