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Cited by 872

The DOI matches its Crossref record; 212 of the 212 references it cites were found in a registry or an index.

Structural Basis of Protein Kinase C Isoform Function

Open access
Steinberg, Susan F.·2008·Physiological Reviews

Abstract

Protein kinase C (PKC) isoforms comprise a family of lipid-activated enzymes that have been implicated in a wide range of cellular functions. PKCs are modular enzymes comprised of a regulatory domain (that contains the membrane-targeting motifs that respond to lipid cofactors, and in the case of some PKCs calcium) and a relatively conserved catalytic domain that binds ATP and substrates. These enzymes are coexpressed and respond to similar stimulatory agonists in many cell types. However, there is growing evidence that individual PKC isoforms subserve unique (and in some cases opposing) functions in cells, at least in part as a result of isoform-specific subcellular compartmentalization patterns, protein-protein interactions, and posttranslational modifications that influence catalytic function. This review focuses on the structural basis for differences in lipid cofactor responsiveness for individual PKC isoforms, the regulatory phosphorylations that control the normal maturation, activation, signaling function, and downregulation of these enzymes, and the intra-/intermolecular interactions that control PKC isoform activation and subcellular targeting in cells. A detailed understanding of the unique molecular features that underlie isoform-specific posttranslational modification patterns, protein-protein interactions, and subcellular targeting (i.e., that impart functional specificity) should provide the basis for the design of novel PKC isoform-specific activator or inhibitor compounds that can achieve therapeutically useful changes in PKC signaling in cells.

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Crossref · 10.1152/physrev.00034.2007

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Metadata

Authors
Steinberg, S. F.
Venue
Physiological Reviews
Published
2008-10
Volume
88
Issue
4
Pages
1341-1378
ISSN
  • 0031-9333 (ISSN-L)
  • 1522-1210
OpenAlex
W1998349282
Cited by
872
References
212
FWCI
2.36
Type
journal article
Language
en
Open access
green

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