Sgk1 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Protein Name | SGK1 (Serum/Glucocorticoid-Regulated Kinase 1) |
|---|---|
| Gene | SGK1 |
| UniProt ID | O00141 |
| PDB ID | 2RBM, 3H9C |
| Molecular Weight | 49 kDa |
| Subcellular Localization | Cytoplasm, Nucleus |
| Protein Family | AGC kinase family (AKT/PKB subfamily) |
SGK1 (Serum/Glucocorticoid-Regulated Kinase 1) is a serine/threonine protein kinase belonging to the AGC family. Originally identified as a glucocorticoid-responsive gene, SGK1 is a critical regulator of cell survival, metabolism, and stress responses in the nervous system [^1]. SGK1 is ubiquitously expressed with particularly high levels in the brain, including the hippocampus, cortex, and basal ganglia [^2].
SGK1 possesses the characteristic architecture of AGC kinases:
The crystal structure (PDB: 2RBM) reveals the typical bilobal kinase fold [^4].
SGK1 regulates diverse cellular processes:
SGK1 phosphorylates and modulates several ion channels:
SGK1 promotes cell survival through:
SGK1 is activated by various cellular stresses:
SGK1 influences glucose transport, lipid metabolism, glycogen synthesis, and mTORC1 signaling [^8].
SGK1 is significantly upregulated in AD brain tissue and may contribute to pathogenesis [^9]:
SGK1 has emerged as a potential therapeutic target in PD [^10]:
SGK1 demonstrates neuroprotective effects in ischemic conditions [^11]:
Shoemaker LB, et al. Serum- and glucocorticoid-regulated kinase 1 in Alzheimer's disease. J Neurochem. 2006;99(2):681-694. PMID:16800848
Nishimoto T, et al. SGK1 is a novel therapeutic target for Parkinson's disease. Mol Brain. 2015;8:48. PMID:26242482
Tai DJ, et al. SGK1 is a key mediator of glucocorticoid action in the brain. Mol Endocrinol. 2009;23(8):1299-1312. PMID:19407220
Tsai KJ, et al. Elevated SGK1 expression contributes to neuronal death after transient global ischemia. J Cereb Blood Flow Metab. 2008;28(12):2064-2074. PMID:18665180
Lang F, et al. SGK in cellular physiology and disease. Am J Physiol Cell Physiol. 2010;299(2):C257-C269. PMID:20484650
The study of Sgk1 Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Last updated: 2026-03-05