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Article

A third osmosensing branch in Saccharomyces cerevisiae requires the Msb2 protein and functions in parallel with the Sho1 branch.

Molecular and cellular biology - 1 Jul 2002

O'Rourke Sean M, Herskowitz Ira

Abstract excerpt

Two Saccharomyces cerevisiae plasma membrane-spanning proteins, Sho1 and Sln1, function during increased osmolarity to activate a mitogen-activated protein (MAP) kinase cascade. One of these proteins, Sho1, utilizes the MAP kinase kinase kinase Ste11 to activate Pbs2. We previously used the FUS1 gene of the pheromone response pathway as a reporter to monitor cross talk in hog1 mutants. Cross talk requires the...

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Identifiers

PMID: 12052881
DOI: 10.1128/MCB.22.13.4739-4749.2002
PMCID: PMC133928

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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A third osmosensing branch in Saccharomyces cerevisiae requires the Msb2 protein and functions in parallel with the Sho1 branch.PMID 12052881Read ↗

The Hog1 MAPK prevents cross talk between the HOG and pheromone response MAPK pathways in Saccharomyces cerevisiae.Semantic proximity Read ↗

Transmembrane mucins Hkr1 and Msb2 are putative osmosensors in the SHO1 branch of yeast HOG pathway.Semantic proximity Read ↗

Adaptor functions of Cdc42, Ste50, and Sho1 in the yeast osmoregulatory HOG MAPK pathway.Semantic proximity Read ↗

Osmotic activation of the HOG MAPK pathway via Ste11p MAPKKK: scaffold role of Pbs2p MAPKK.Semantic proximity Read ↗

Defects in protein glycosylation cause SHO1-dependent activation of a STE12 signaling pathway in yeast.Semantic proximity Read ↗

Activation of yeast PBS2 MAPKK by MAPKKKs or by binding of an SH3-containing osmosensor.Semantic proximity Read ↗

Analysis of mitogen-activated protein kinase signaling specificity in response to hyperosmotic stress: use of an analog-sensitive HOG1 allele.Semantic proximity Read ↗

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Unique and redundant roles for HOG MAPK pathway components as revealed by whole-genome expression analysis.Semantic proximity Read ↗

Osmosensing and scaffolding functions of the oligomeric four-transmembrane domain osmosensor Sho1.Semantic proximity Read ↗

A docking site determining specificity of Pbs2 MAPKK for Ssk2/Ssk22 MAPKKKs in the yeast HOG pathway.Semantic proximity Read ↗

The osmoregulatory pathway represses mating pathway activity in Saccharomyces cerevisiae: isolation of a FUS3 mutant that is insensitive to the repression mechanism.Semantic proximity Read ↗

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