Evidence map›Paper›PMID 20421380›Full record

ArticleInfection and immunity2010

Role of the surface lipoprotein BBA07 in the enzootic cycle of Borrelia burgdorferi.

Haijun Xu, Ming He, Jane Jingyuan He, X Frank Yang

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.4field-weighted citation impact, top 9% 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

35 citing papers in PubMed, 42 citations in OpenAlex.

  1. Comparative evaluation of viability assays and functional analysis ofApplied and environmental microbiology · 2026
    Article
  2. Mechanisms of bacterial host-to-host transmission.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  3. Infection and immunity · 2025
    Article
  4. Hitchhiker's Guide toJournal of bacteriology · 2024
    Review
  5. Article
  6. Article
  7. Review
  8. Lyme Disease Pathogenesis.Current issues in molecular biology · 2021
    Review
  9. Structural and Functional Analysis of BBA03,Pathogens (Basel, Switzerland) · 2020
    Article
  10. Role of HK2 in the Enzootic Cycle ofFrontiers in medicine · 2020
    Article
  11. The RpoS Gatekeeper inFrontiers in microbiology · 2019
    Article
  12. Article
  13. Article
  14. Investigation ofFrontiers in cellular and infection microbiology · 2017
    Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Evolutionary genomics of Borrelia burgdorferi sensu lato: findings, hypotheses, and the rise of hybrids.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2014
    Review
  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

4 authors at 1 institution in 1 country.

Haijun XuDepartment of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Ming He
Jane Jingyuan He
X Frank Yang
Indiana University School of Medicine

Funding

Regulatory Network of the Lyme Disease PathogenR01AI083640 · NIAID · INDIANA UNIVERSITY INDIANAPOLIS · PI X. Frank Yang · 2009 to 2026
$5.9M
EXTRAMURAL RESEARCH FACILITIES CONSTRUCTIONC06RR015481 · NCRR · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI FIFE, ROSE S · 2001 to 2001
$1.6M
The mechanism of activation of the Rrp2-RpoN-RpoS pathway in Borrelia burgdorferiR21AI085242 · NIAID · INDIANA UNIVERSITY INDIANAPOLIS · PI YANG, X. FRANK · 2010 to 2011
$397k
NCRR NIH HHS C06 RR015481NCRR NIH HHS C06 RR015481-01NIAID NIH HHS R01 AI083640NIAID NIH HHS R21 AI085242NIAMS NIH HHS R03 AR054942
6 · The paper itself

Abstract

Borrelia burgdorferi, the Lyme disease pathogen, dramatically alters its protein profile when it is transmitted between ticks and mammals. Several differentially expressed proteins have been shown to be critical for the enzootic cycle of B. burgdorferi. In this study, we demonstrated that expression of the surface lipoprotein-encoding gene bba07 is induced by an elevated temperature and a reduced pH during in vitro cultivation, as well as during nymphal tick feeding. Expression of bba07 is regulated by the Rrp2-RpoN-RpoS pathway, a central regulatory network that is activated during nymphal feeding. By generating a bba07 mutant of an infectious strain of B. burgdorferi, we demonstrated that although BBA07-deficient spirochetes were capable of infecting mice via needle inoculation and surviving in ticks, they were defective in infection of mammals via tick transmission. Complementation of the bba07 mutant with a wild-type copy of bba07 partially restored the transmission defect of the bba07 mutant. Based on these findings, we concluded that the surface lipoprotein BBA07 is produced during tick feeding and facilitates optimal transmission of B. burgdorferi from the tick vector to a mammalian host.

Indexed as

AnimalsArachnid VectorsBacterial Outer Membrane ProteinsBorrelia burgdorferiElectrophoresis, Polyacrylamide GelGene Expression Regulation, BacterialImmunoblottingIxodesLife Cycle StagesLyme DiseaseMiceMice, Inbred C3HProtein EngineeringReverse Transcriptase Polymerase Chain ReactionBacterial Outer Membrane Proteins

Identifiers

PMID20421380
PMCPMC2897396
OpenAlexW2056015255

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.