Evidence map›Paper›PMID 22675445›Full record

ArticlePloS one2012

Effect of levels of acetate on the mevalonate pathway of Borrelia burgdorferi.

Tricia A Van Laar, Ying-Han Lin, Christine L Miller, S L Rajasekhar Karna, James P Chambers, J Seshu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

44 citing papers in PubMed, 48 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Protective efficacy of mutant strains ofInfection and immunity · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Current and emerging approaches for eliminatingFrontiers in microbiology · 2024
    Review
  11. Article
  12. Cholesterol Contributes to Risk, Severity, and Machine Learning-Driven Diagnosis of Lyme Disease.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Gene Regulation and Transcriptomics.Current issues in molecular biology · 2021
    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 at 2 institutions in 1 country.

Tricia A Van LaarDepartment of Biology, Center for Excellence in Infection Genomics and The University of Texas at San Antonio, San Antonio, Texas, United States of America.
Ying-Han Lin
Christine L Miller
S L Rajasekhar Karna
James P Chambers
J Seshu
The University of Texas at San Antonio · USTexas Center for Infectious Disease · 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, is a spirochetal pathogen with limited metabolic capabilities that survives under highly disparate host-specific conditions. However, the borrelial genome encodes several proteins of the mevalonate pathway (MP) that utilizes acetyl-CoA as a substrate leading to intermediate metabolites critical for biogenesis of peptidoglycan and post-translational modifications of proteins. In this study, we analyzed the MP and contributions of acetate in modulation of adaptive responses in B. burgdorferi. Reverse-transcription PCR revealed that components of the MP are transcribed as individual open reading frames. Immunoblot analysis using monospecific sera confirmed synthesis of members of the MP in B. burgdorferi. The rate-limiting step of the MP is mediated by HMG-CoA reductase (HMGR) via conversion of HMG-CoA to mevalonate. Recombinant borrelial HMGR exhibited a K(m) value of 132 µM with a V(max) of 1.94 µmol NADPH oxidized minute(-1) (mg protein)(-1) and was inhibited by statins. Total protein lysates from two different infectious, clonal isolates of B. burgdorferi grown under conditions that mimicked fed-ticks (pH 6.8/37°C) exhibited increased levels of HMGR while other members of the MP were elevated under unfed-tick (pH 7.6/23°C) conditions. Increased extra-cellular acetate gave rise to elevated levels of MP proteins along with RpoS, CsrA(Bb) and their respective regulons responsible for mediating vertebrate host-specific adaptation. Both lactone and acid forms of two different statins inhibited growth of B. burgdorferi strain B31, while overexpression of HMGR was able to partially overcome that inhibition. In summary, these studies on MP and contributions of acetate to host-specific adaptation have helped identify potential metabolic targets that can be manipulated to reduce the incidence of Lyme disease.

Indexed as

AcetatesAmino Acid SequenceBacterial ProteinsBorrelia burgdorferiEnzyme ActivationGene Expression Regulation, BacterialGene OrderHydroxymethylglutaryl-CoA Reductase InhibitorsHydroxymethylglutaryl CoA ReductasesMetabolic Networks and PathwaysMevalonic AcidMolecular Sequence DataOpen Reading FramesSequence AlignmentTranscriptomeAcetatesBacterial ProteinsHydroxymethylglutaryl-CoA Reductase InhibitorsHydroxymethylglutaryl CoA ReductasesMevalonic Acid

Identifiers

PMID22675445
PMCPMC3364977
OpenAlexW2087099306

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.