Evidence map›Paper›PMID 20233308›Full record

ArticleMolecular microbiology2010

A localized multimeric anchor attaches the Caulobacter holdfast to the cell pole.

Gail G Hardy, Rebecca C Allen, Evelyn Toh, Maria Long, Pamela J B Brown, Jennifer L Cole-Tobian, Yves V Brun

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

39 citing papers in PubMed, 68 citations in OpenAlex.

  1. Review
  2. Article
  3. What Glues the Glue to the Cell Surface?Journal of bacteriology · 2022
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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

7 authors at 1 institution in 1 country.

Gail G HardyDepartment of Biology, Jordan Hall 142, Indiana University, 1001 E. 3rd Street, Bloomington, IN 47405, USA.
Rebecca C Allen
Evelyn Toh
Maria Long
Pamela J B Brown
Jennifer L Cole-Tobian
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
Mechanism of Caulobacter adhesionR01GM077648 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI BRUN, YVES V · 2007 to 2011
$1.5M
NIGMS NIH HHS GM077648NIGMS NIH HHS GM51986NIGMS NIH HHS R01 GM051986NIGMS NIH HHS R01 GM077648
6 · The paper itself

Abstract

Caulobacter crescentus attachment is mediated by the holdfast, a complex of polysaccharide anchored to the cell by HfaA, HfaB and HfaD. We show that all three proteins are surface exposed outer membrane (OM) proteins. HfaA is similar to fimbrial proteins and assembles into a high molecular weight (HMW) form requiring HfaD, but not holdfast polysaccharide. The HfaD HMW form is dependent on HfaA but not on holdfast polysaccharide. We show that HfaA and HfaD form homomultimers and that they require HfaB for stability and OM translocation. All three proteins localize to the late pre-divisional flagellar pole, remain at this pole in swarmer cells, and localize at the stalk tip after the stalk is synthesized at the same pole. Hfa protein localization requires the holdfast polysaccharide secretion proteins and the polar localization factor PodJ. An hfaB mutant is much more severely deficient in adherence and holdfast attachment than hfaA and hfaD mutants. An hfaA, hfaD double mutant phenocopies either single mutant, suggesting that HfaB is involved in holdfast attachment beyond secretion of HfaA and HfaD. We hypothesize that HfaB secretes HfaA and HfaD across the outer membrane, and the three proteins form a complex anchoring the holdfast to the stalk.

Indexed as

Bacterial AdhesionHost-Pathogen InteractionsAdhesins, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsCaulobacter crescentusFlagellaMacromolecular SubstancesMembrane ProteinsPolysaccharidesProtein BindingProtein MultimerizationVirulence FactorsAdhesins, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsHfaA protein, Caulobacter crescentusHfaD protein, Caulobacter crescentusMacromolecular SubstancesMembrane ProteinsPolysaccharidesVirulence Factors

Identifiers

PMID20233308
PMCPMC2908716
OpenAlexW2108687246

What OpenQuestion holds

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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.