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Article

Regions of Byr4, a regulator of septation in fission yeast, that bind Spg1 or Cdc16 and form a two-component GTPase-activating protein with Cdc16.

The Journal of biological chemistry - 16 Apr 1999

Furge K A, Cheng Q C, Jwa M, Shin S, Song K, Albright C F

Abstract excerpt

In the fission yeast Schizosaccharomyces pombe, septation and constriction of the actomyosin ring for cell division are positively regulated by the Spg1 GTPase, a member of the Ras superfamily. Spg1 is negatively regulated by Byr4 and Cdc16, which together form a two-component GTPase-activating protein for the Spg1 GTPase. To better understand how Byr4 regulates septation, Byr4 mutants were tested for in vitro...

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PMID: 10196225
DOI: 10.1074/jbc.274.16.11339

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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.

Related research

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Regions of Byr4, a regulator of septation in fission yeast, that bind Spg1 or Cdc16 and form a two-component GTPase-activating protein with Cdc16.PMID 10196225Read ↗

Byr4 and Cdc16 form a two-component GTPase-activating protein for the Spg1 GTPase that controls septation in fission yeast.Semantic proximity Read ↗

Byr4 localizes to spindle-pole bodies in a cell cycle-regulated manner to control Cdc7 localization and septation in fission yeast.Semantic proximity Read ↗

Bypass of the requirement for cdc16p GAP function in Schizosaccharomyces pombe by mutation of the septation initiation network genes.Semantic proximity Read ↗

Byr4, a dosage-dependent regulator of cytokinesis in S. pombe, interacts with a possible small GTPase pathway including Spg1 and Cdc16.Semantic proximity Read ↗

Mutational analyses of the interacting domains of Schizosaccharomyces pombe Byr2 with 14-3-3s.Semantic proximity Read ↗

Bob1, a Gim5/MM-1/Pfd5 homolog, interacts with the MAP kinase kinase Byr1 to regulate sexual differentiation in the fission yeast, Schizosaccharomyces pombe.Semantic proximity Read ↗

Functional analysis of domains in the Byr2 kinase.Semantic proximity Read ↗

byr2, a Schizosaccharomyces pombe gene encoding a protein kinase capable of partial suppression of the ras1 mutant phenotype.Semantic proximity Read ↗

Schizosaccharomyces pombe Pxl1 is a paxillin homologue that modulates Rho1 activity and participates in cytokinesis.Semantic proximity Read ↗

GTPase-activating proteins for Cdc42.Semantic proximity Read ↗

The small GTPase Rho4 is involved in controlling cell morphology and septation in fission yeast.Semantic proximity Read ↗

The Byr2 kinase translocates to the plasma membrane in a Ras1-dependent manner.Semantic proximity Read ↗

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