Evidence map›Paper›PMID 22126997›Full record

ReviewMicrobiology and molecular biology reviews : MMBR2011

Peptidoglycan hydrolases of Escherichia coli.

Jean van Heijenoort

Abstract readReview
In one paragraph

Review in Microbiology and molecular biology reviews : MMBR, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 128 papers.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed
14.3field-weighted citation impact, top 1% 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

128 citing papers in PubMed, 225 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Peptidoglycan polymerase function and regulation.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  7. Milestones in the development ofJournal of bacteriology · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Editorial: Reviews in microbial pathogenesis.Frontiers in microbiology · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. TargetingAntibiotics (Basel, Switzerland) · 2024
    Article
  19. Article
  20. Article

68 more citing papers are in PubMed but not listed here.

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

1 author at 1 institution in 1 country.

Jean van HeijenoortInstitut de Biochimie et Biophysique Moléculaire et Cellulaire, Bat 430, Université Paris-Sud, Orsay F-91405, France. jean.van-heijenoort@u-psud.fr
Université Paris-Sud · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The review summarizes the abundant information on the 35 identified peptidoglycan (PG) hydrolases of Escherichia coli classified into 12 distinct families, including mainly glycosidases, peptidases, and amidases. An attempt is also made to critically assess their functions in PG maturation, turnover, elongation, septation, and recycling as well as in cell autolysis. There is at least one hydrolytic activity for each bond linking PG components, and most hydrolase genes were identified. Few hydrolases appear to be individually essential. The crystal structures and reaction mechanisms of certain hydrolases having defined functions were investigated. However, our knowledge of the biochemical properties of most hydrolases still remains fragmentary, and that of their cellular functions remains elusive. Owing to redundancy, PG hydrolases far outnumber the enzymes of PG biosynthesis. The presence of the two sets of enzymes acting on the PG bonds raises the question of their functional correlations. It is difficult to understand why E. coli keeps such a large set of PG hydrolases. The subtle differences in substrate specificities between the isoenzymes of each family certainly reflect a variety of as-yet-unidentified physiological functions. Their study will be a far more difficult challenge than that of the steps of the PG biosynthesis pathway.

Indexed as

BacteriolysisCell WallEscherichia coliGlycoside HydrolasesMutationN-Acetylmuramoyl-L-alanine AmidasePeptide HydrolasesGlycoside HydrolasesN-Acetylmuramoyl-L-alanine AmidasePeptide Hydrolases

Identifiers

PMID22126997
PMCPMC3232740
OpenAlexW2134968979

What OpenQuestion holds

Textmetadata
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.