Evidence map›Paper›PMID 36513643›Full record

ArticleNature communications2022

Structure-function studies reveal ComEA contains an oligomerization domain essential for transformation in gram-positive bacteria.

Ishtiyaq Ahmed, Jeanette Hahn, Amy Henrickson, Faisal Tarique Khaja, Borries Demeler, David Dubnau, Matthew B Neiditch

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
4.9field-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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
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  5. ComFB, a widespread family of c-di-NMP receptor proteins.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

7 authors at 3 institutions in 2 countries.

Ishtiyaq AhmedDepartment of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical Health Sciences, Newark, NJ, 07103, USA.
Jeanette HahnPublic Health Research Institute, Rutgers Biomedical Health Sciences, Newark, NJ, 07103, USA.
Amy HenricksonDepartment of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.ORCID 0000-0003-3266-5202
Faisal Tarique KhajaGreehey Children's Cancer Research Institute, University of Texas Health at San Antonio, San Antonio, TX, 78229, USA.
Borries DemelerDepartment of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.ORCID 0000-0002-2414-9518
David DubnauDepartment of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical Health Sciences, Newark, NJ, 07103, USA. dubnauda@njms.rutgers.edu.ORCID 0000-0001-9713-6120
Matthew B NeiditchDepartment of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical Health Sciences, Newark, NJ, 07103, USA. matthew.neiditch@rutgers.edu.ORCID 0000-0002-7039-4469
Rutgers, The State University of New Jersey · USUniversity of Lethbridge · CAThe University of Texas Health Science Center at San Antonio · US

Funding

Understanding the mechanism of genetic transformationR01GM057720 · NIGMS · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI DAVID A DUBNAU, Matthew B Neiditch · 1998 to 2026
$15.4M
Development of an UltraScan Meta-Scheduler for HPC Job SubmissionR01GM120600 · NIGMS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Emre H. Brookes, BORRIES DEMELER · 2016 to 2026
$3.6M
NIGMS NIH HHS R01 GM057720
6 · The paper itself

Abstract

An essential step in bacterial transformation is the uptake of DNA into the periplasm, across the thick peptidoglycan cell wall of Gram-positive bacteria, or the outer membrane and thin peptidoglycan layer of Gram-negative bacteria. ComEA, a DNA-binding protein widely conserved in transformable bacteria, is required for this uptake step. Here we determine X-ray crystal structures of ComEA from two Gram-positive species, Bacillus subtilis and Geobacillus stearothermophilus, identifying a domain that is absent in Gram-negative bacteria. X-ray crystallographic, genetic, and analytical ultracentrifugation (AUC) analyses reveal that this domain drives ComEA oligomerization, which we show is required for transformation. We use multi-wavelength AUC (MW-AUC) to characterize the interaction between DNA and the ComEA DNA-binding domain. Finally, we present a model for the interaction of the ComEA DNA-binding domain with DNA, suggesting that ComEA oligomerization may provide a pulling force that drives DNA uptake across the thick cell walls of Gram-positive bacteria.

Indexed as

Bacterial ProteinsPeptidoglycanBacillus subtilisDNAGram-Positive BacteriaTransformation, BacterialBacterial ProteinsDNAPeptidoglycan

Identifiers

PMID36513643
PMCPMC9747964
OpenAlexW4311305932

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Registered trials

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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.