Evidence map›Paper›PMID 16537909›Full record

ArticleMolecular and cellular biology2006

Glc7/protein phosphatase 1 regulatory subunits can oppose the Ipl1/aurora protein kinase by redistributing Glc7.

Benjamin A Pinsky, Chitra V Kotwaliwale, Sean Y Tatsutani, Christopher A Breed, Sue Biggins

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

68 citing papers in PubMed, 111 citations in OpenAlex.

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8 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Benjamin A PinskyMolecular and Cellular Biology Program, University of Washington, Seattle 98195, USA.
Chitra V Kotwaliwale
Sean Y Tatsutani
Christopher A Breed
Sue Biggins
Fred Hutch Cancer Center · USUniversity of Washington · US

Funding

Regulation of Chromosome SegregationR01GM064386 · NIGMS · FRED HUTCHINSON CANCER RESEARCH CENTER · PI BIGGINS, SUSAN · 2002 to 2022
$7.2M
NIGMS NIH HHS R01 GM064386NIGMS NIH HHS R01-GM64386
6 · The paper itself

Abstract

Faithful chromosome segregation depends on the opposing activities of the budding yeast Glc7/PP1 protein phosphatase and Ipl1/Aurora protein kinase. We explored the relationship between Glc7 and Ipl1 and found that the phosphorylation of the Ipl1 substrate, Dam1, was altered by decreased Glc7 activity, whereas Ipl1 levels, localization, and kinase activity were not. These data strongly suggest that Glc7 ensures accurate chromosome segregation by dephosphorylating Ipl1 targets rather than regulating the Ipl1 kinase. To identify potential Glc7 and Ipl1 substrates, we isolated ipl1-321 dosage suppressors. Seven genes (SDS22, BUD14, GIP3, GIP4, SOL1, SOL2, and PEX31) encode newly identified ipl1 dosage suppressors, and all 10 suppressors encode proteins that physically interact with Glc7. The overexpression of the Gip3 and Gip4 suppressors altered Glc7 localization, indicating they are previously unidentified Glc7 regulatory subunits. In addition, the overexpression of Gip3 and Gip4 from the galactose promoter restored Dam1 phosphorylation in ipl1-321 mutant cells and caused wild-type cells to arrest in metaphase with unsegregated chromosomes, suggesting that Gip3 and Gip4 overexpression impairs Glc7's mitotic functions. We therefore propose that the overexpression of Glc7 regulatory subunits can titrate Glc7 away from relevant Ipl1 targets and thereby suppress ipl1-321 cells by restoring the balance of phosphatase/kinase activity.

Indexed as

Aurora KinasesCell NucleusChromosome SegregationGene DosageGene ExpressionIntracellular Signaling Peptides and ProteinsPhosphoprotein PhosphatasesProtein BindingProtein KinasesProtein Phosphatase 1Protein Serine-Threonine KinasesProtein SubunitsProtein TransportSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSuppression, GeneticAurora KinasesGLC7 protein, S cerevisiaeIntracellular Signaling Peptides and ProteinsIPL1 protein, S cerevisiaePhosphoprotein PhosphatasesProtein KinasesProtein Phosphatase 1Protein Serine-Threonine KinasesProtein SubunitsSaccharomyces cerevisiae Proteins

Identifiers

PMID16537909
PMCPMC1430313
OpenAlexW2126121000

What OpenQuestion holds

Textmetadata
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.