Evidence map›Paper›PMID 14617644›Full record

ArticleJournal of bacteriology2003

Identification and characterization of a peptidoglycan hydrolase, MurA, of Listeria monocytogenes, a muramidase needed for cell separation.

Shannon A Carroll, Torsten Hain, Ulrike Technow, Ayub Darji, Philippos Pashalidis, Sam W Joseph, Trinad Chakraborty

Abstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–field-weighted citation impact
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

33 citing papers in PubMed.

  1. Article
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  6. Biofilm Formation byApplied and environmental microbiology · 2021
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  15. How Listeria monocytogenes organizes its surface for virulence.Frontiers in cellular and infection microbiology · 2014
    Review
  16. Article
  17. Article
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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.

Shannon A CarrollDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland 20742, USA.
Torsten Hain
Ulrike Technow
Ayub Darji
Philippos Pashalidis
Sam W Joseph
Trinad Chakraborty

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A novel cell wall hydrolase encoded by the murA gene of Listeria monocytogenes is reported here. Mature MurA is a 66-kDa cell surface protein that is recognized by the well-characterized L. monocytogenes-specific monoclonal antibody EM-7G1. MurA displays two characteristic features: (i) an N-terminal domain with homology to muramidases from several gram-positive bacterial species and (ii) four copies of a cell wall-anchoring LysM repeat motif present within its C-terminal domain. Purified recombinant MurA produced in Escherichia coli was confirmed to be an authentic cell wall hydrolase with lytic properties toward cell wall preparations of Micrococcus lysodeikticus. An isogenic mutant with a deletion of murA that lacked the 66-kDa cell wall hydrolase grew as long chains during exponential growth. Complementation of the mutant strain by chromosomal reintegration of the wild-type gene restored expression of this murein hydrolase activity and cell separation levels to those of the wild-type strain. Studies reported herein suggest that the MurA protein is involved in generalized autolysis of L. monocytogenes.

Indexed as

Amino Acid SequenceCell WallCloning, MolecularConsensus SequenceGene DeletionGenome, BacterialListeria monocytogenesMolecular Sequence DataMolecular WeightMuramidaseN-Acetylmuramoyl-L-alanine AmidaseRecombinant ProteinsSequence AlignmentTerminal Repeat SequencesMuramidaseN-Acetylmuramoyl-L-alanine AmidaseRecombinant Proteins

Identifiers

PMID14617644
PMCPMC262698

What OpenQuestion holds

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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.