Evidence map›Paper›PMID 8631677›Full record

ArticleJournal of bacteriology1996

Novel mechanisms of Escherichia coli succinyl-coenzyme A synthetase regulation.

M Birney, H D Um, C Klein

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.1field-weighted citation impact, top 52% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
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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

3 authors at 1 institution in 1 country.

M BirneyDepartment of Biochemistry and Molecular Biology, St. Louis University School of Medicine, Missouri 63104, USA.
H D Um
C Klein
Washington University in St. Louis · US

Funding

MULTIDISCIPLINARY LUNG DISEASE RESEARCH TRAINING PROGRAMT32HL007050 · NHLBI · SAINT LOUIS UNIVERSITY · PI LONGMORE, WILLIAM J · 1985 to 1995
–
NHLBI NIH HHS HL 07050
6 · The paper itself

Abstract

Low concentrations of ADP are shown to increase the rate of phosphoenzyme formation of E. coli succinyl-coenzyme A (CoA) synthetase (SCS) without altering the fraction of phosphorylated enzyme. This is true when either ATP or succinyl-CoA and Pi are used to phosphorylate the enzyme. The stimulatory effect of ADP is not altered by sample dilution, is retained upon partial purification of the enzyme, and reflects the binding of ADP to a site other than the catalytic site. GDP also alters the phosphorylation of the E. coli SCS but does so primarily by enhancing the level of the phosphoenzyme and only when ATP is used as the phosphate donor. GDP appears to function by neutralizing the action of a specific inhibitory protein. This inhibitor of SCS allows for interconversion of succinate and succinyl-CoA in a manner dissociated from changes in ATP-ADP metabolism. These previously unidentified and varied mechanisms by which SCS is regulated focus attention on this enzyme as an important control point in determining the cell's potential to meet its metabolic demands.

Indexed as

Adenosine DiphosphateAllosteric RegulationEscherichia coliGuanosine DiphosphatePhosphorylationSuccinate-CoA LigasesAdenosine DiphosphateGuanosine DiphosphateSuccinate-CoA Ligases

Identifiers

PMID8631677
PMCPMC178024
OpenAlexW2132316790

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.