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Article

A role for the RabA4b effector protein PI-4Kbeta1 in polarized expansion of root hair cells in Arabidopsis thaliana.

The Journal of cell biology - 27 Mar 2006

Preuss Mary L, Schmitz Aaron J, Thole Julie M, Bonner Heather K S, Otegui Marisa S, Nielsen Erik

Abstract excerpt

The RabA4b GTPase labels a novel, trans-Golgi network compartment displaying a developmentally regulated polar distribution in growing Arabidopsis thaliana root hair cells. GTP bound RabA4b selectively recruits the plant phosphatidylinositol 4-OH kinase, PI-4Kbeta1, but not members of other PI-4K families. PI-4Kbeta1 colocalizes with RabA4b on tip-localized membranes in growing root hairs, and mutant plants in...

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Identifiers

PMID: 16567499
DOI: 10.1083/jcb.200508116
PMCID: PMC2063757

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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A role for the RabA4b effector protein PI-4Kbeta1 in polarized expansion of root hair cells in Arabidopsis thaliana.PMID 16567499Read ↗

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