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Cited by 492

The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.

Protein kinase CK2: a challenge to canons

Pinna, Lorenzo A.·2002·Journal of Cell Science

Abstract

CK2 is an extremely conserved pleiotropic protein kinase with a growing list of more than 300 substrates, the majority of which are proteins implicated in signal transduction, gene expression and other nuclear functions. The CK2 phosphoacceptor sites are specified by multiple acidic residues, with the one at position +3 relative to the target residue being of crucial relevance. The CK2 holoenzyme is composed of two catalytic subunits(αα, α′α′ or αα′), which are essential for cell viability, and a dimer of two non-catalytic βsubunits, whose precise function is still poorly understood. Although theβ subunits deeply affect many properties of CK2, both the isolated catalytic subunits and the holoenzyme are constitutively active, which is probably responsible for the oncogenic potential of CK2. Given the structure of the holoenzyme, the β subunits could undergo reversible dissociation under physiological conditions and play a role as anchoring elements and/or as a docking platform for protein substrates and effectors. These unusual features are likely to be instrumental in the involvement of CK2 in a number of key biological functions, notably RNA synthesis, Wnt signaling,ubiquitination and cell survival.

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Metadata

Authors
Pinna, L. A.
Venue
Journal of Cell Science
Published
2002-10-15
Volume
115
Issue
20
Pages
3873-3878
ISSN
  • 0021-9533 (ISSN-L)
  • 1477-9137
OpenAlex
W1973466091
Cited by
492
References
29
FWCI
9.07
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Protein kinase CK2: a challenge to canons. https://app.cochat.ai/papers/10.1242/jcs.00074
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Pinna, L. A. (2002). Protein kinase CK2: a challenge to canons. Journal of Cell Science. https://doi.org/10.1242/jcs.00074

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