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Published on: February 21, 2019
The dual function of KSR1: a pseudokinase and beyond
Hua Zhang1, Chuay Yeng Koo, Justin Stebbing
1Department of Surgery and Cancer, Division of Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London W12 ONN, UK. h.zhang10@imperial.ac.uk
Biochemical Society Transactions
|July 19, 2013
Summary
Kinase Suppressor of Ras 1 (KSR1) acts as both an active kinase and a pseudokinase/scaffolding protein. This dual role is crucial for regulating cellular signaling pathways and has implications in human malignancies.
Area of Science:
- Biochemistry
- Cell Biology
- Molecular Biology
Background:
- Protein kinases regulate vital cellular processes like development, differentiation, and cell death.
- Pseudokinases, lacking key catalytic residues, are increasingly recognized as signaling pathway regulators.
- Kinase Suppressor of Ras 1 (KSR1) was initially identified in the Ras/Raf pathway.
Purpose of the Study:
- To review recent findings on KSR1's dual activity.
- To discuss KSR1's function as both an active kinase and a pseudokinase/scaffolding protein.
- To explore KSR1's biological roles in human disorders, particularly malignancies.
Main Methods:
- Literature review of recent findings on KSR1.
- Analysis of KSR1's catalytic activity and scaffolding functions.
- Review of KSR1's involvement in human diseases.
Main Results:
- KSR1 exhibits dual activity, functioning as both an active kinase and a pseudokinase/scaffolding protein.
- KSR1 acts as a platform to assemble signaling components, facilitating signal transduction.
- KSR1 plays a significant role in the pathogenesis of human malignancies.
Conclusions:
- KSR1's dual kinase and scaffolding functions are critical for cellular signaling.
- Understanding KSR1's multifaceted roles offers insights into disease mechanisms.
- KSR1 represents a potential therapeutic target in cancer treatment.
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