Evidence map›Paper›PMID 23517529›Full record

ArticleMolecular microbiology2013

The adhesive and cohesive properties of a bacterial polysaccharide adhesin are modulated by a deacetylase.

Zhe Wan, Pamela J B Brown, Ellen N Elliott, Yves V Brun

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-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

19 citing papers in PubMed, 46 citations in OpenAlex.

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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 1 institution in 1 country.

Zhe WanDepartment of Biology, Indiana University, Bloomington, IN 47405, USA.
Pamela J B Brown
Ellen N Elliott
Yves V Brun
Indiana University Bloomington · US

Funding

GLOBAL CONTROL OF DIFFERENTIATION IN CAULOBACTERR01GM051986 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI BRUN, YVES V · 1995 to 2016
$6.0M
Synthesis and properties of a bacterial bioadhesiveR01GM102841 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI BRUN, YVES V · 2012 to 2015
$1.5M
Acquisition of a DeltaVision OMX Super-Resolution Imaging SystemS10RR028697 · NCRR · INDIANA UNIVERSITY INDIANAPOLIS · PI WALCZAK, CLAIRE E · 2010 to 2010
$1.2M
Nutrient Uptake by the Stalk of Caulobacter crescentusF32AI072992 · NIAID · TRUSTEES OF INDIANA UNIVERSITY · PI BROWN, PAMELA JANE BONNER · 2007 to 2009
$148k
NCRR NIH HHS S10 RR028697NCRR NIH HHS S10RR028697NIAID NIH HHS F32 AI072992NIAID NIH HHS F32AI072992NIGMS NIH HHS GM102841NIGMS NIH HHS R01 GM051986NIGMS NIH HHS R01 GM102841
6 · The paper itself

Abstract

Bacterial exopolysaccharide synthesis is a prevalent and indispensible activity in many biological processes, including surface adhesion and biofilm formation. In Caulobacter crescentus, surface attachment and subsequent biofilm growth depend on the ability to synthesize an adhesive polar polysaccharide known as the holdfast. In this work, we show that polar polysaccharide synthesis is a conserved phenomenon among Alphaproteobacterial species closely related to C. crescentus. Among them, mutagenesis of Asticcacaulis biprosthecum showed that disruption of the hfsH gene, which encodes a putative polysaccharide deacetylase, leads to accumulation of holdfast in the culture supernatant. Examination of the hfsH deletion mutant in C. crescentus revealed that this strain synthesizes holdfast; however, like the A. biprosthecum hfsH mutant, the holdfasts are shed into the medium and have decreased adhesiveness and cohesiveness. Site-directed mutagenesis at the predicted catalytic site of C. crescentus HfsH phenocopied the ΔhfsH mutant and abolished the esterase activity of HfsH. In contrast, overexpression of HfsH increased cell adherence without increasing holdfast synthesis. We conclude that the polysaccharide deacetylase activity of HfsH is required for the adhesive and cohesive properties of the holdfast, as well as for the anchoring of the holdfast to the cell envelope.

Indexed as

Bacterial AdhesionAdhesins, BacterialAmidohydrolasesBiofilmsBlotting, WesternCaulobacter crescentusChromosome MappingComputational BiologyImage Processing, Computer-AssistedMicroscopy, FluorescenceMultigene FamilyMutagenesis, Site-DirectedPlasmidsPolysaccharides, BacterialSequence DeletionAdhesins, BacterialAmidohydrolasesbacterial adhesins, polysaccharidepolysaccharide deacetylasePolysaccharides, Bacterial

Identifiers

PMID23517529
PMCPMC3633684
OpenAlexW1936644380

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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.