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Cited by 186

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

A Novel, Evolutionarily Conserved Protein Phosphatase Complex Involved in Cisplatin Sensitivity

Open access
Gingras, Anne-Claude, Caballero, Michael, Zarske, Marcel, Sanchez, Amy, Hazbun, Tony R., Fields, Stanley, Sonenberg, Nahum, Hafen, Ernst, Raught, Brian, Aebersold, Ruedi·2005·Molecular & Cellular Proteomics

Abstract

Using a combination of tandem affinity purification tagging and mass spectrometry, we characterized a novel, evolutionarily conserved protein phosphatase 4 (PP4)-containing complex (PP4cs, protein phosphatase 4, cisplatin-sensitive complex) that plays a critical role in the eukaryotic DNA damage response. PP4cs is comprised of the catalytic subunit PP4C; a known regulatory subunit, PP4R2; and a novel protein that we termed PP4R3. The Saccharomyces cerevisiae PP4R3 ortholog Psy2 was identified previously in a screen for sensitivity to the DNA-damaging agent and anticancer drug cisplatin. We demonstrated that deletion of any of the PP4cs complex orthologs in S. cerevisiae elicited cisplatin hypersensitivity. Furthermore human PP4R3 complemented the yeast psy2 deletion, and Drosophila melanogaster lacking functional PP4R3 (flfl) exhibited cisplatin hypersensitivity, suggesting a highly conserved role for PP4cs in DNA damage repair. Finally we found that PP4R3 may target PP4cs to the DNA damage repair machinery at least in part via an interaction with Rad53 (CHK2).

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Metadata

Authors
Gingras, A.-C., Caballero, M., Zarske, M., Sanchez, A., Hazbun, T. R., Fields, S., Sonenberg, N., Hafen, E., Raught, B., & Aebersold, R.
Venue
Molecular & Cellular Proteomics
Publisher
Elsevier BV
Published
2005-11
Volume
4
Issue
11
Pages
1725-1740
ISSN
1535-9476 (ISSN-L)
OpenAlex
W2133686469
Cited by
186
References
5
FWCI
4.49
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: A Novel, Evolutionarily Conserved Protein Phosphatase Complex Involved in Cisplatin Sensitivity. https://app.cochat.ai/papers/10.1074/mcp.m500231-mcp200
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Gingras, A.-C., Caballero, M., Zarske, M., Sanchez, A., Hazbun, T. R., Fields, S., Sonenberg, N., Hafen, E., Raught, B., & Aebersold, R. (2005). A Novel, Evolutionarily Conserved Protein Phosphatase Complex Involved in Cisplatin Sensitivity. Molecular & Cellular Proteomics. https://doi.org/10.1074/mcp.m500231-mcp200

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