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Genes Cancer. 2013 Sep;4(9-10):369-77. doi: 10.1177/1947601913486348.

RACK1 Function in Cell Motility and Protein Synthesis.

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Lady Davis Institute for Medical Research, Sir Mortimer B. Davis Jewish General Hospital, Montréal, QC, Canada ; Department of Oncology, McGill University, Montréal, QC, Canada.
Signal Transduction Program, Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA.


The receptor for activated C kinase 1 (RACK1) serves as an adaptor for a number of proteins along the MAPK, protein kinase C, and Src signaling pathways. The abundance and near ubiquitous expression of RACK1 reflect its role in coordinating signaling molecules for many critical biological processes, from mRNA translation to cell motility to cell survival and death. Complete deficiency of Rack1 is embryonic lethal, but the recent development of genetic Rack1 hypomorphic mice has highlighted the central role that RACK1 plays in cell movement and protein synthesis. This review focuses on the importance of RACK1 in these processes and places the recent work in the larger context of understanding RACK1 function.


RACK1; cancer; cell migration; ribosomes; stress response; translation

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