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Mol Biol Cell. 1996 Jul;7(7):1003-14.

Proteins in unexpected locations.

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1
Department of Pediatrics, University of Chicago, Illinois 60637, USA.

Abstract

Members of all classes of proteins--cytoskeletal components, secreted growth factors, glycolytic enzymes, kinases, transcription factors, chaperones, transmembrane proteins, and extracellular matrix proteins--have been identified in cellular compartments other than their conventional sites of action. Some of these proteins are expressed as distinct compartment-specific isoforms, have novel mechanisms for intercompartmental translocation, have distinct endogenous biological actions within each compartment, and are regulated in a compartment-specific manner as a function of physiologic state. The possibility that many, if not most, proteins have distinct roles in more than one cellular compartment has implications for the evolution of cell organization and may be important for understanding pathological conditions such as Alzheimer's disease and cancer.

PMID:
8862516
PMCID:
PMC275954
[Indexed for MEDLINE]
Free PMC Article
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