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|Product Name||14-3-3 sigma, 1-248aa, Human|
|Background||14-3-3 sigma ,also known as Stratifin (SFN), belong to the 14-3-3 family. The 14-3-3 family of proteins plays a key regulatory role in signal transduction, checkpoint control, apoptotic and nutrient-sensing pathways. 14-3-3 proteins are highly conserved and ubiquitously expressed. There are at least seven isoforms, beta, gamma, epsilon, sigma, zeta, tau and eta that have been identified in mammals. 14-3-3 sigma was identified as an epithelial cell marker and appeared to function as a tumor suppressor whose expression can be down regulated via methylation. Loss of 14-3-3 sigma expression results in a defective G2/M phase checkpoint and appears to contribute to both epithelial and non-epithelial tumorigenesis. Recombinant human 14-3-3 sigma was expressed in E.coli and purified by using conventional chromatography techniques.|
|Synonyms||stratifin, Epithelial cell marker protein 1, HME1, YWHAS, SFN, 14-3-3 sigma|
|Amino Acid Sequence||MERASLIQKA KLAEQAERYE DMAAFMKGAV EKGEELSCEE RNLLSVAYKN VVGGQRAAWR VLSSIEQKSN EEGSEEKGPE VREYREKVET ELQGVCDTVL GLLDSHLIKE AGDAESRVFY LKMKGDYYRY LAEVATGDDK KRIIDSARSA YQEAMDISKK EMPPTNPIRL GLALNFSVFH YEIANSPEEA ISLAKTTFDE AMADLHTLSE DSYKDSTLIM QLLRDNLTLW TADNAGEEGG EAPQEPQS|
|Molecular Weight||18 kDa (160aa), confirmed by MALDI-TOF.|
|Concentration||1 mg/ml (determined by Bradford assay)|
|Form||Liquid, in 20mM Tris-HCl buffer (pH8.0) containing 50mM NaCl, 10% glycerol|
|Purity||> 95% by SDS-PAGE|
|NCBI Accession #||NP_006133|
|Storage||Can be stored at +4C short term (1-2 weeks). For long term storage, aliquot and store at -20C or -70C. Avoid repeated freezing and thawing cycles.|
|Intended Use||For Research Use Only|
|References||Benzinger A., et al. (2005) Mol Cell Proteomics. 4(6): 785-95.
Wilker E W., et al. (2005) J Biol Chem. 280:18891-18898.
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