Evidence map›Paper›PMID 8195064›Full record

ArticleJournal of bacteriology1994

The Bacillus subtilis sigma D-dependent operon encoding the flagellar proteins FliD, FliS, and FliT.

L Chen, J D Helmann

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Structural Analysis ofMicroorganisms · 2023
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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

2 authors at 1 institution in 1 country.

L ChenSection of Microbiology, Cornell University, Ithaca, New York 14853.
J D Helmann
Cornell University · US

Funding

STRUCTURAL STUDIES OF BACILLUS SUBTILIS SIGMA FACTORSR01GM047446 · NIGMS · CORNELL UNIVERSITY ITHACA · PI HELMANN, JOHN D · 1992 to 2016
$6.7M
NIGMS NIH HHS GM47446
6 · The paper itself

Abstract

During a genetic screen to identify metalloregulated loci in Bacillus subtilis, we isolated a Tn917-lacZ insertion in the second gene of an operon downstream of the flagellin (hag) gene. Sequence analysis indicates that this gene encodes a homolog of the enteric flagellar filament cap protein FliD. The fliD gene is followed by homologs of the fliS and fliT genes. Transcription of the fliD-lacZ fusion is sigma D dependent, with peak expression at the end of logarithmic-phase growth. Like other sigma D-dependent genes, expression of fliD-lacZ is greatly reduced by mutations in genes essential for assembly and function of the basal body and hook complex (class II functions). These results suggest that B. subtilis flagellar genes are organized in a hierarchy of gene expression similar to that found in enteric bacteria with hag and fliD as class III genes. Expression from the fliD operon promoter, but not the hag promoter, is repressed by iron, which suggests that the target of metalloregulation is the promoter rather than the sigma D protein.

Indexed as

FlagellaMolecular ChaperonesAmino Acid SequenceBacillus subtilisBacterial ProteinsBase SequenceFlagellinGene Expression Regulation, BacterialMetalsMolecular Sequence DataMutagenesis, InsertionalOperonPromoter Regions, GeneticRecombinant Fusion ProteinsSequence Analysis, DNASequence Homology, Amino AcidBacterial ProteinsFlaD protein, BacteriaFlagellinFliS protein, BacteriafliT protein, BacteriaMetalsMolecular ChaperonesRecombinant Fusion Proteins

Identifiers

PMID8195064
PMCPMC205476
OpenAlexW1761407655

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.