Evidence map›Paper›PMID 21628523›Full record

ArticleInfection and immunity2011

Oligopeptide permease A5 modulates vertebrate host-specific adaptation of Borrelia burgdorferi.

B V Subba Raju, Maria D Esteve-Gassent, S L Rajasekhar Karna, Christine L Miller, Tricia A Van Laar, J Seshu

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

29 citing papers in PubMed, 34 citations in OpenAlex.

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  12. The RpoS Gatekeeper inFrontiers in microbiology · 2019
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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

6 authors at 2 institutions in 1 country.

B V Subba RajuSouth Texas Center for Emerging Infectious Diseases and Department of Biology, The University of Texas at San Antonio, San Antonio, TX 78249, USA.
Maria D Esteve-Gassent
S L Rajasekhar Karna
Christine L Miller
Tricia A Van Laar
J Seshu
Texas Center for Infectious Disease · USThe University of Texas at San Antonio · US

Funding

Borrelia burgdorferi Interactions with Mammalian Host CellsSC1AI078559 · NIAID · UNIVERSITY OF TEXAS SAN ANTONIO · PI SESHU, JANAKIRAM · 2007 to 2010
$1.4M
NIAID NIH HHS SC1 AI078559NIAID NIH HHS SC1-AI-078559
6 · The paper itself

Abstract

Borrelia burgdorferi, the agent of Lyme disease, undergoes rapid adaptive gene expression in response to signals unique to its arthropod vector or vertebrate hosts. Among the upregulated genes under vertebrate host conditions is one of the five annotated homologs of oligopeptide permease A (OppA5, BBA34). A mutant lacking oppA5 was constructed in an lp25-deficient isolate of B. burgdorferi strain B31, and the minimal regions of infectivity were restored via a shuttle vector pBBE22 with or without an intact copy of bba34. Immunoblot analysis of the bba34 mutant revealed a reduction in the levels of RpoS, BosR, and CsrA(Bb) with a concomitant reduction in the levels of OspC, DbpA, BBK32, and BBA64. There were no changes in the levels of OspA, NapA, P66, and three other OppA orthologs. Quantitative transcriptional analysis correlated with the changes in the protein levels. However, the bba34 mutant displayed comparable infectivities in the C3H/HeN mice and the wild-type strain, despite the reduction in several pathogenesis-related proteins. Supplementation of the growth medium with increased levels of select components, notably sodium acetate and sodium bicarbonate, restored the levels of several proteins in the bba34 mutant to wild-type levels. We speculate that the transport of acetate appears to contribute to the accumulation of key metabolites, like acetyl phosphate, that facilitate the adaptation of B. burgdorferi to the vertebrate host by the activation of the Rrp2-RpoN-RpoS pathway. These studies underscore the importance of solute transport to host-specific adaptation of B. burgdorferi.

Indexed as

Host-Pathogen InteractionsAnimalsBacterial ProteinsBlotting, WesternBorrelia burgdorferiCarrier ProteinsDisease Models, AnimalFemaleGene Expression ProfilingGene Knockout TechniquesGenetic Complementation TestLipoproteinsLyme DiseaseMiceMice, Inbred C3HReverse Transcriptase Polymerase Chain ReactionBacterial ProteinsCarrier ProteinsLipoproteinsoligopeptide-binding protein, bacteriaVirulence Factors

Identifiers

PMID21628523
PMCPMC3147597
OpenAlexW2140604657

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.