Anti-14-3-3 sigma/SFN Antibody Picoband® Fluoro488 Conjugated

Stratifin (SFN), also known as 14-3-3 protein sigma, is strongly induced by gamma irradiation and other DNA-damaging agents. The induction of 14-3-3-sigma is mediated by a p53 -responsive element located 1.8 kb upstream of its transcription start site. Leffers et al. (1993) obtained peptide sequence and subsequently cloned a T-cell cDNA of the 14-3-3 family of conserved proteins. The protein, called stratifin, was shown to be diffusely distributed in the cytoplasm and was present in cultured epithelial cells. It was most abundant in tissues enriched in stratified keratinizing epithelium.

Adapters, Cell Type Marker, Cytoplasmic, Neural Signal Transduction, Neurology Process, Neuron Marker, Neuroscience, Signal Transduction, Signaling Pathways, Stem Cells, Synapse Marker

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. May also regulate MDM2 autoubiquitination and degradation and thereby activate p53/TP53. .

1. Leffers, H., Madsen, P., Rasmussen, H. H., Honore, B., Andersen, A. H., Walbum, E., Vandekerckhove, J., Celis, J. E.Molecular cloning and expression of the transformation sensitive epithelial marker stratifin: a member of a protein family that has been involved in the protein kinase C signalling pathway.J. Molec. Biol. 231: 982-998, 1993. 2. Urano, T., Saito, T., Tsukui, T., Fujita, M., Hosoi, T., Muramatsu, M., Ouchi, Y., Inoue, S. Efp targets 14-3-3-sigma for proteolysis and promotes breast tumour growth.Nature 417: 871-875, 2002. 3. Wilker, E. W., van Vugt, M. A. T. M., Artim, S. A., Huang, P. H., Petersen, C. P., Reinhardt, H. C., Feng, Y., Sharp, P. A., Sonenberg, N., White, F. M., Yaffe, M. B.14-3-3-sigma controls mitotic translation to facilitate cytokinesis.Nature 446: 329-332, 2007.