RSK (Ribosomal S6 Kinase) is a family of serine/threonine kinases that play a crucial role in various cellular processes, including cell growth, differentiation, and survival.
RSK is overexpressed in various types of cancer, including breast, lung, colon, and prostate cancer.
RSK phosphorylates and activates downstream targets, such as:
ERK1/2: promotes cell growth and survival.
AKT: promotes cell survival and inhibits apoptosis.
NF-κB: promotes cell survival and inflammation.
RSK proteins are activated by phosphorylation, which allows them to bind to and phosphorylate downstream targets.
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