Evidence map›Paper›PMID 22408166›Full record

ArticleJournal of bacteriology2012

Lactate utilization is regulated by the FadR-type regulator LldR in Pseudomonas aeruginosa.

Chao Gao, Chunhui Hu, Zhaojuan Zheng, Cuiqing Ma, Tianyi Jiang, Peipei Dou, Wen Zhang, Bin Che, Yujiao Wang, Min Lv and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

33 citing papers in PubMed, 60 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. The L-lactate dehydrogenases ofbioRxiv : the preprint server for biology · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Genome Annotation of Poly(lactic acid) DegradingInternational journal of molecular sciences · 2021
    Article
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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

11 authors at 3 institutions in 1 country.

Chao GaoState Key Laboratory of Microbial Technology, Shandong University, Jinan, People's Republic of China.
Chunhui Hu
Zhaojuan Zheng
Cuiqing Ma
Tianyi Jiang
Peipei Dou
Wen Zhang
Bin Che
Yujiao Wang
Min Lv
Ping Xu
Shandong University · CNShanghai Jiao Tong University · CNState Key Laboratory of Microbial Technology

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

NAD-independent L-lactate dehydrogenase (l-iLDH) and NAD-independent D-lactate dehydrogenase (D-iLDH) activities are induced coordinately by either enantiomer of lactate in Pseudomonas strains. Inspection of the genomic sequences of different Pseudomonas strains revealed that the lldPDE operon comprises 3 genes, lldP (encoding a lactate permease), lldD (encoding an L-iLDH), and lldE (encoding a D-iLDH). Cotranscription of lldP, lldD, and lldE in Pseudomonas aeruginosa strain XMG starts with the base, C, that is located 138 bp upstream of the lldP ATG start codon. The lldPDE operon is located adjacent to lldR (encoding an FadR-type regulator, LldR). The gel mobility shift assays revealed that the purified His-tagged LldR binds to the upstream region of lldP. An XMG mutant strain that constitutively expresses D-iLDH and L-iLDH was found to contain a mutation in lldR that leads to an Ile23-to-serine substitution in the LldR protein. The mutated protein, LldR(M), lost its DNA-binding activity. A motif with a hyphenated dyad symmetry (TGGTCTTACCA) was identified as essential for the binding of LldR to the upstream region of lldP by using site-directed mutagenesis. L-Lactate and D-lactate interfered with the DNA-binding activity of LldR. Thus, L-iLDH and D-iLDH were expressed when the operon was induced in the presence of L-lactate or D-lactate.

Indexed as

Bacterial ProteinsBase SequenceDNA-Binding ProteinsGene Expression Regulation, BacterialGenome, BacterialGenomicsLactatesMolecular Sequence DataMutagenesis, Site-DirectedOligopeptidesOperonProtein BindingPseudomonas aeruginosaReverse Transcriptase Polymerase Chain ReactionTranscription FactorsBacterial ProteinsDNA-Binding ProteinsLactatesMUT 1 peptideOligopeptidesTranscription Factors

Identifiers

PMID22408166
PMCPMC3347178
OpenAlexW2124274406

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.