Evidence map›Paper›PMID 41620559›Full record

ArticleCommunications biology2026

A histidine pseudokinase modulates polar growth and cell shape in Streptomyces venezuelae.

Parminder Singh Mavi, Klas Flärdh

Abstract read
In one paragraph

Article in Communications biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

2 authors.

Parminder Singh MaviDepartment of Biology, Lund University, Lund, Sweden.
Klas FlärdhDepartment of Biology, Lund University, Lund, Sweden. klas.flardh@biol.lu.se.ORCID http://orcid.org/0000-0002-7131-9743

Funding

Carl Tryggers Stiftelse för Vetenskaplig Forskning (Carl Trygger Foundation) 19:102Kungliga Fysiografiska Sällskapet i Lund (Royal Physiographic Society in Lund) 42451Vetenskapsrådet (Swedish Research Council) 2019-04643Vetenskapsrådet (Swedish Research Council) 2023-04417
6 · The paper itself

Abstract

Polar growth and cell shape determination in mycelium-forming Streptomyces bacteria depends on the function of a polarly localised multiprotein complex that directs cell wall synthesis - the polarisome. This complex assembles around the essential cell polarity determinant DivIVA, alongside other largely unknown components. We report here the discovery of a conserved hybrid histidine kinase-like protein, PsmA, that interacts and co-localises with DivIVA at the hyphal tips. Deletion of psmA affects the shape and dynamics of the polarisome, leading to aberrant cell shape and hyphal hyperbranching. PsmA is a pseudokinase that lacks the critical histidine residue in its catalytic core. Our results suggest that PsmA tunes the dynamics and properties of the DivIVA-based polar organelle in streptomycetes in parallel to but not redundantly with Scy and FilP, two coiled-coil proteins known to influence polarisome properties. In summary, PsmA interacts with DivIVA and modulates the integrity of the growth zones at hyphal tips.

Indexed as

Bacterial ProteinsHistidine KinaseStreptomycesCell Cycle ProteinsCell PolarityCell ShapeBacterial ProteinsCell Cycle ProteinsDivIVA protein, bacteriaHistidine Kinase

Identifiers

PMID41620559
PMCPMC12963549

What OpenQuestion holds

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Registered trials

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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.