Evidence map›Paper›PMID 11673425›Full record

ArticleJournal of bacteriology2001

Complementation of a nonmotile flaB mutant of Borrelia burgdorferi by chromosomal integration of a plasmid containing a wild-type flaB allele.

M L Sartakova, E Y Dobrikova, M A Motaleb, H P Godfrey, N W Charon, F C Cabello

Abstract read
In one paragraph

Article in Journal of bacteriology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

  1. Genetic Manipulation ofCurrent issues in molecular biology · 2021
    Review
  2. Article
  3. Flagellar motility of the pathogenic spirochetes.Seminars in cell & developmental biology · 2015
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Borrelia burgdorferi tissue morphologies and imaging methodologies.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2013
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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.

M L SartakovaDepartment of Microbiology, New York Medical College, Valhalla, New York 10595, USA.
E Y Dobrikova
M A Motaleb
H P Godfrey
N W Charon
F C Cabello

Funding

Stringent response and bmp expression in B. burgdorferiR01AI043063 · NIAID · NEW YORK MEDICAL COLLEGE · PI CABELLO, FELIPE CARDENAS · 1998 to 2007
$2.2M
BORRELIA BURGDORFERI MOTILITYR01AI029743 · NIAID · WEST VIRGINIA UNIVERSITY · PI CHARON, NYLES · 1990 to 2007
$2.1M
Stringent response and bmp expression in B.burgdorferiR21AI043063 · NIAID · NEW YORK MEDICAL COLLEGE · PI CABELLO, FELIPE C. · 2002 to 2002
$380k
NIAID NIH HHS AI29743NIAID NIH HHS AI43063NIAID NIH HHS R01 AI029743NIAID NIH HHS R01 AI043063NIAID NIH HHS R21 AI043063
6 · The paper itself

Abstract

With the recent identification of antibiotic resistance phenotypes, the use of reporter genes, the isolation of null mutants by insertional inactivation, and the development of extrachromosomal cloning vectors, genetic analysis of Borrelia burgdorferi is becoming a reality. A previously described nonmotile, rod-shaped, kanamycin-resistant B. burgdorferi flaB::Km null mutant was complemented by electroporation with the erythromycin resistance plasmid pED3 (a pGK12 derivative) containing the wild-type flaB sequence and 366 bp upstream from its initiation codon. The resulting MS17 clone possessed erythromycin and kanamycin resistance, flat-wave morphology, and microscopic and macroscopic motility. Several other electroporations with plasmids containing wild-type flaB and various lengths (198, 366, or 762 bp) of sequence upstream from the flaB gene starting codon did not lead to functional restoration of the nonmotile flaB null mutant. DNA hybridization, PCR analysis, and sequencing indicated that the wild-type flaB gene in nonmotile clones was present in the introduced extrachromosomal plasmids, while the motile MS17 clone was a merodiploid containing single tandem chromosomal copies of mutated flaB::Km and wild-type flaB with a 366-bp sequence upstream from its starting codon. Complementation was thus achieved only when wild-type flaB was inserted into the borrelial chromosome. Several possible mechanisms for the failure of complementation for extrachromosomally located flaB are discussed.

Indexed as

AllelesBorrelia burgdorferiChromosomes, BacterialElectroporationFlagellinMutationPlasmidsTransformation, BacterialflaB flagellinFlagellin

Identifiers

PMID11673425
PMCPMC95486

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.