Evidence map›Paper›PMID 7828587›Full record

ArticleThe EMBO journal1995

The identity of the base following the stop codon determines the efficiency of in vivo translational termination in Escherichia coli.

E S Poole, C M Brown, W P Tate

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The EMBO journal, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
5.1field-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

95 citing papers in PubMed, 273 citations in OpenAlex.

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35 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

3 authors at 1 institution in 1 country.

E S PooleDepartment of Biochemistry, University of Otago, Dunedin, New Zealand.
C M Brown
W P Tate
University of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A statistical analysis of > 2000 Escherichia coli genes suggested that the base following the translational stop codon might be an important feature of the signal for termination. The strengths of each of 12 possible 'four base stop signals' (UAAN, UGAN and UAGN) were tested in an in vivo termination assay that measured termination efficiency by its direct competition with frameshifting. Termination efficiencies varied significantly depending on both the stop codon and the fourth base, ranging from 80 (UAAU) to 7% (UGAC). For both the UAAN and UGAN series, the fourth base hierarchy was U > G > A approximately C. UAG stop codons, which are used rarely in E. coli, showed efficiencies comparable with UAAN and UGAN, but differed in that the hierarchy of the fourth base was G > U approximately A > C. The rate of release factor selection varied 30-fold at UGAN stop signals, and 10-fold for both the UAAN and UAGN series; it correlated well with the frequency with which the different UAAN and UGAN signals are found at natural termination sites. The results suggest that the identity of the base following the stop codon determines the efficiency of translational termination in E. coli. They also provide a rationale for the use of the strong UAAU signal in highly expressed genes and for the occurrence of the weaker UGAC signal at several recording sites.

Indexed as

Base CompositionBase SequenceCodon, TerminatorEscherichia coliGenes, BacterialMolecular Sequence DataPeptide Chain Termination, TranslationalReading FramesStructure-Activity RelationshipCodon, Terminator

Identifiers

PMID7828587
PMCPMC398062
OpenAlexW152630325

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.