Evidence map›Paper›PMID 21902733›Full record

ArticleMolecular microbiology2011

Dysregulation of serine biosynthesis contributes to the growth defect of a Mycobacterium tuberculosis crp mutant.

Guangchun Bai, Damen D Schaak, Eric A Smith, Kathleen A McDonough

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 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
1.7field-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

29 citing papers in PubMed, 41 citations in OpenAlex.

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  17. Overexpression of Adenylyl Cyclase Encoded by theFrontiers in cellular and infection microbiology · 2017
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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

4 authors at 2 institutions in 1 country.

Guangchun BaiWadsworth Center, New York State Department of Health, 120 New Scotland Avenue, PO Box 22002, Albany, NY 12201-2002, USA.
Damen D Schaak
Eric A Smith
Kathleen A McDonough
Wadsworth Center · USNew York State Department of Health · US

Funding

cAMP signaling pathways within Mycobacterium tuberculosisR01AI063499 · NIAID · WADSWORTH CENTER · PI MCDONOUGH, KATHLEEN A · 2005 to 2016
$2.8M
NIAID NIH HHS AI063499NIAID NIH HHS R01 AI063499
6 · The paper itself

Abstract

Mycobacterium tuberculosis CRP(Mt), encoded by Rv3676 (crp), is a CRP-like transcription factor that binds with the serC-Rv0885 intergenic region. In the present study, we evaluated CRP(Mt) 's regulation of serC and Rv0885 in M. tuberculosis and M. bovis BCG, using site-specific mutagenesis, promoter fusions and reverse-transcriptase PCR (RT-PCR). The CRP(Mt) binding site was required for full expression of serC and Rv0885, and expression of both genes was reduced in M. tuberculosis and M. bovis BCG crp mutants. These data show that CRP(Mt) binding directly activates both serC and Rv0885 expression. M. tuberculosis serC restored the ability of an Escherichia coli serC mutant to grow in serine-dropout medium, demonstrating that M. tuberculosis serC encodes a phosphoserine aminotransferase. Serine supplementation, or overexpression of serC, accelerated the growth of M. tuberculosis and M. bovis BCG crp mutants in mycomedium, but not within macrophages. These results establish a role for CRP(Mt) in the regulation of amino acid biosynthesis, and show that reduced serine production contributes to the slow-growth phenotype of M. tuberculosis and M. bovis BCG crp mutants in vitro. Restoration of serine biosynthesis by serC expression will facilitate identification of additional CRP(Mt)-regulated factors required by M. tuberculosis during macrophage and host infection.

Indexed as

Gene Expression Regulation, BacterialAnimalsBacterial ProteinsBase SequenceBinding SitesCell LineCyclic AMP Receptor ProteinHumansMacrophagesMiceMolecular Sequence DataMutationMycobacterium tuberculosisPromoter Regions, GeneticProtein BindingSerineBacterial ProteinsCyclic AMP Receptor Proteinphosphoserine aminotransferaseSerineTransaminases

Identifiers

PMID21902733
PMCPMC3785234
OpenAlexW2153770606

What OpenQuestion holds

Textmetadata
LicenceTDM
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.