Evidence map›Paper›PMID 21531803›Full record

ArticleJournal of bacteriology2011

Characteristic phenotypes associated with ptsN-null mutants in Escherichia coli K-12 are absent in strains with functional ilvG.

Marshall Louis Reaves, Joshua D Rabinowitz

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. GTPase Era at the heart of ribosome assembly.Frontiers in molecular biosciences · 2023
    Review
  3. Engineering glucose metabolism ofNPJ systems biology and applications · 2017
    Article
  4. Article
  5. Article
  6. Article
  7. The Emergence of 2-Oxoglutarate as a Master Regulator Metabolite.Microbiology and molecular biology reviews : MMBR · 2015
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Unnecessary signaling: poorly named?Journal of bacteriology · 2011
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Marshall Louis ReavesLewis Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08544, USA.
Joshua D Rabinowitz
Princeton University · US

Funding

Spatial Patterning During DevelopmentP50GM071508 · NIGMS · PRINCETON UNIVERSITY · PI POWELL, SUSAN M · 2004 to 2013
$30.6M
NIGMS NIH HHS P50 GM071508NIGMS NIH HHS P50GM071508
6 · The paper itself

Abstract

The phosphotransferase system (PTS), encompassing EI, HPr, and assorted EII proteins, uses phosphoenolpyruvate to import and phosphorylate sugars. A paralog of EIIA of the sugar PTS system known as ptsN has been purported to regulate organic nitrogen source utilization in Escherichia coli K-12. Its known biochemical function, however, relates to potassium homeostasis. The evidence for regulation of organic nitrogen source utilization by ptsN is based primarily on the defective growth of ΔptsN mutants on amino acid nitrogen sources and other nutrient combinations. These observations were made with E. coli strains MG1655 and W3110, which carry a nonfunctional version of ilvG. There are three isozymes that effectively catalyze the first committed step of branched-chain amino acid biosynthesis, but ilvG is unique for doing so effectively across a range of potassium concentrations. Here we show that all of the nutrient utilization phenotypes attributed to ptsN are manifested selectively in strains lacking functional ilvG. We conclude that the ptsN gene product does not regulate organic nitrogen source utilization as previously proposed.

Indexed as

Gene DeletionAcetolactate SynthaseAmino AcidsEscherichia coli K12Escherichia coli ProteinsPhenotypePhosphoenolpyruvate Sugar Phosphotransferase SystemAcetolactate SynthaseAmino AcidsEscherichia coli ProteinsPhosphoenolpyruvate Sugar Phosphotransferase SystemPtsN protein, E coli

Identifiers

PMID21531803
PMCPMC3165713
OpenAlexW1995972929

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.