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: Excessive SGK1 activity is linked to chronic inflammatory conditions and tissue fibrosis in the heart, lungs, and kidneys. Clinical Relevance

: The human SGK1 protein is a serine/threonine-protein kinase consisting of 431 amino acids with a molecular mass of approximately 49 kDa . It features an N-terminal PX-like (phox homology) domain, a central catalytic kinase domain, and a C-terminal hydrophobic motif.

: It is a primary regulator of the epithelial sodium channel (ENaC) in the kidney, which is critical for sodium reabsorption and blood pressure control.

: Research compounds like EMD638683 , GSK650394 , and SI113 are being studied for their potential to treat cancer, metabolic disorders, and fibrotic diseases. Serum and glucocorticoid-regulated kinase 1 - Frontiers

: It is a "stress-response" gene, rapidly up-regulated by serum, glucocorticoids, mineralocorticoids, and various cell stressors like ischemia and osmotic changes. Biological Roles & Physiological Impact

phosphorylates Serine 422 at the C-terminal hydrophobic motif.