14-3-3, Sigma (SFN) Antibody – Mouse Monoclonal

14-3-3 sigma: Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathways. Binds to a large number of partners, usually by recognition of a phosphoserine or phosphothreonine motif. Binding generally results in the modulation of the activity of the binding partner. When bound to KRT17, regulates protein synthesis and epithelial cell growth by stimulating Akt/mTOR pathway. Homodimer. Interacts with KRT17 and SAMSN1. Found in a complex with XPO7, EIF4A1, ARHGAP1, VPS26A, VPS29, VPS35 and SFN. Interacts with GAB2. Interacts with SRPK2. Present mainly in tissues enriched in stratified squamous keratinizing epithelium. Belongs to the 14-3-3 family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Adaptor/scaffold

Chromosomal Location of Human Ortholog: 1p36.11

Cellular Component: extracellular space; cytoplasmic vesicle membrane; cytoplasm; cytosol; nucleus

Molecular Function: protein domain specific binding; protein kinase C inhibitor activity; protein binding; phosphoprotein binding; protein kinase binding

Biological Process: positive regulation of protein export from nucleus; release of cytochrome c from mitochondria; regulation of epidermal cell division; DNA damage response, signal transduction resulting in induction of apoptosis; apoptosis; keratinization; positive regulation of epidermal cell differentiation; negative regulation of protein kinase activity; regulation of cyclin-dependent protein kinase activity; negative regulation of caspase activity; signal transduction; positive regulation of cell growth