Cited by 100Heat shock proteins researchUbiquitin and proteasome pathwaysProtein Kinase Regulation and GTPase Signaling

Protein Kinase CK2 in Health and Disease: CK2: The kinase controlling the Hsp90 chaperone machinery

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Miyata, Y.·2009·Cellular and Molecular Life Sciences

Abstract

CK2 is a ubiquitous and essential protein kinase with pleiotropic substrates and function, but it remains unclear how, when, and where CK2 activity is regulated in cells. Hsp90 is a major molecular chaperone that is required for the folding and function of its client proteins. A complex containing Hsp90 and its client protein includes co-chaperones such as steroid hormone receptor-specific FKBP52 and signaling kinase-specific Cdc37. Co-chaperones work cooperatively with Hsp90 to stabilize client proteins and to keep them in a conformation amenable to activation under appropriate conditions. In this review, critical roles of CK2 in the regulation of the Hsp90-mediated chaperone system are described. CK2 phosphorylates and modulates Hsp90 and its co-chaperones FKBP52 and Cdc37. CK2-dependent phosphorylation of Cdc37 is essential for the chaperoning function of Hsp90-Cdc37 for multiple signaling protein kinases. The tumor kinome appears to become addicted to the Hsp90-Cdc37 chaperone system, thus, targeting Hsp90, Cdc37, and CK2 is a promising strategy for cancer treatment.

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Crossref · 10.1007/s00018-009-9152-0

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  • CKB1 and CKB2 encode the non-redundant beta regulatory subunits of protein kinase CK2, which phosphorylates over 300 substrates, including Hsp90.

    “CKB1 and CKB2 encode the non-redundant beta regulatory subunits of protein kinase CK2, which is an essential serine/threonine protein kinase that phosphorylates over 300 substrates, including Hsp9017.”

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Authors
Miyata, Y.
Affiliations
Kyoto University (JP)
Corresponding author
Miyata, Y.
Venue
Cellular and Molecular Life Sciences
Published
2009-04-24
Volume
66
Issue
11-12
Pages
1840-1849
ISSN
  • 1420-682X (ISSN-L)
  • 1420-9071
OpenAlex
W2557828168
Cited by
98
References
91
Citations by year
2025: 2 · 2023: 4 · 2022: 4 · 2021: 6 · 2019: 6 · 2018: 2 · 2017: 10 · 2016: 7 · 2015: 10 · 2014: 4 · 2013: 13 · 2012: 8
FWCI
4.02
Type
journal article
Language
en
Open access
Locations
  • Cellular and Molecular Life Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
casein kinase 2, HSP90, Cdc37, FKBP52, Hsp90 co-chaperone, CK2 phosphorylation, chaperone-mediated protein folding, cancer therapy, Hsp90 inhibitors
MeSH terms
Amino Acid Sequence, Animals, Humans, Models, Molecular, Molecular Sequence Data, Phosphorylation, Protein Binding, Protein Conformation, Cell Cycle Proteins, Molecular Chaperones, Chaperonins, HSP90 Heat-Shock Proteins, Tacrolimus Binding Proteins, Casein Kinase II

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