Evidence map›Paper›PMID 21725019›Full record

ArticleJournal of bacteriology2011

UvrD2 is essential in Mycobacterium tuberculosis, but its helicase activity is not required.

Alan Williams, Carolin Güthlein, Nicola Beresford, Erik C Böttger, Burkhard Springer, Elaine O Davis

Open access · bronzeAbstract 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 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
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

6 authors at 2 institutions in 2 countries.

Alan WilliamsMRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, UK. alan.williams@nimr.mrc.ac.uk
Carolin Güthlein
Nicola Beresford
Erik C Böttger
Burkhard Springer
Elaine O Davis
University of Zurich · CHAustrian Agency for Health and Food Safety · AT

Funding

Medical Research Council U1175 32056
6 · The paper itself

Abstract

UvrD is an SF1 family helicase involved in DNA repair that is widely conserved in bacteria. Mycobacterium tuberculosis has two annotated UvrD homologues; here we investigate the role of UvrD2. The uvrD2 gene at its native locus could be knocked out only in the presence of a second copy of the gene, demonstrating that uvrD2 is essential. Analysis of the putative protein domain structure of UvrD2 shows a distinctive domain architecture, with an extended C terminus containing an HRDC domain normally found in SF2 family helicases and a linking domain carrying a tetracysteine motif. Truncated constructs lacking the C-terminal domains of UvrD2 were able to compensate for the loss of the chromosomal copy, showing that these C-terminal domains are not essential. Although UvrD2 is a functional helicase, a mutant form of the protein lacking helicase activity was able to permit deletion of uvrD2 at its native locus. However, a mutant protein unable to hydrolyze ATP or translocate along DNA was not able to compensate for lack of the wild-type protein. Therefore, we concluded that the essential role played by UvrD2 is unlikely to involve its DNA unwinding activity and is more likely to involve DNA translocation and, possibly, protein displacement.

Indexed as

Genes, EssentialAdenosine TriphosphatasesAdenosine TriphosphateAmino Acid MotifsAmino Acid SequenceBacterial ProteinsChromosomes, BacterialDNA, BacterialDNA HelicasesEscherichia coliGene DeletionGenes, BacterialGenetic LociHydrolysisMolecular Sequence DataMycobacterium tuberculosisAdenosine TriphosphatasesAdenosine TriphosphateBacterial ProteinsDNA, BacterialDNA Helicases

Identifiers

PMID21725019
PMCPMC3165537
OpenAlexW2088063597

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.