Evidence map›Paper›PMID 26030923›Full record

ArticlePloS one2015

Maltose-Dependent Transcriptional Regulation of the mal Regulon by MalR in Streptococcus pneumoniae.

Muhammad Afzal, Sulman Shafeeq, Irfan Manzoor, Oscar P Kuipers

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. N-acetylglucosamine-Mediated Expression ofFrontiers in cellular and infection microbiology · 2016
    Article
  7. N-acetylgalatosamine-Mediated Regulation of theFrontiers in cellular and infection microbiology
    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 3 countries.

Muhammad AfzalDepartment of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands; Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan.
Sulman ShafeeqDepartment of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands; Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Nobels väg 16, 17177, Stockholm, Sweden.
Irfan ManzoorDepartment of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands; Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan.
Oscar P KuipersDepartment of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
University of Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The maltose regulon (mal regulon) has previously been shown to consist of the mal gene cluster (malMP, malXCD and malAR operons) in Streptococcus pneumoniae. In this study, we have further elucidated the complete mal regulon in S. pneumoniae D39 using microarray analyses and β-galactosidase assays. In addition to the mal gene cluster, the complete mal regulon of S. pneumoniae D39 consists of a pullulanase (PulA), a glucosidase (DexB), a glucokinase (RokB), a PTS component (PtsG) and an amylase (AmyA2). Our microarray studies and β-galactosidase assays further showed that the LacI-family transcriptional regulator MalR represses the expression of the mal regulon in the absence of maltose. Furthermore, the role of the pleiotropic transcriptional regulator CcpA in the regulation of the mal regulon in the presence of maltose was explored. Our microarray analysis with a ΔccpA strain showed that CcpA only represses the expression of the malXCD operon and the pulA gene in the presence of maltose. Hence, we extend the mal regulon now consisting of pulA, dexB, rokB, ptsG and amyA2 in addition to malMP, malXCD and malAR operons.

Indexed as

Bacterial ProteinsBase SequenceGene Expression Regulation, BacterialGenes, BacterialGlucoseMaltoseMolecular Sequence DataMutationOligonucleotide Array Sequence AnalysisOperator Regions, GeneticOperonRegulonRepressor ProteinsStreptococcus pneumoniaeTranscription, GeneticTranscriptomeBacterial ProteinsGlucosemalR protein, bacteriaMaltoseRepressor Proteins

Identifiers

PMID26030923
PMCPMC4451989
OpenAlexW2106110012

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.