SRP5160
14-3-3 σ, untagged human
recombinant, expressed in E. coli, ≥70% (SDS-PAGE), buffered aqueous glycerol solution
Synonym(s):
14-3-3 σ, SFN, YWHAS, stratifin
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About This Item
Form:
buffered aqueous glycerol solution
Assay:
≥70% (SDS-PAGE)
Biological source:
human
Recombinant:
expressed in E. coli
Mol wt:
~29 kDa
General description
14-3-3σ or stratifin is a protein that is strongly induced by gamma irradiation and other DNA-damaging agents. The induction of 14-3-3σ is mediated by a p53 responsive element. Exogenous introduction of 14-3-3σ into cycling cells results in a G2 cell cycle arrest. Knockout of 14-3-3σ in cells showed that the cells are unable to maintain cell cycle arrest after DNA damage. The 14-3-3σ -/- cells die as they enter mitosis. This process is associated with a failure of the 14-3-3σ-deficient cells to sequester the proteins that initiate mitosis and prevent them from entering the nucleus. Thus, 14-3-3σ plays an important role in maintaining the G2 checkpoint in cells and preventing mitotic death.
Physical form
Supplied in 50mM Tris-HCl, pH 7.5, 50mM NaCl, 0.25mM DTT, 0.1mM PMSF, 25% glycerol.
Preparation Note
after opening, aliquot into smaller quantities and store at -70 °C. Avoid repeating handling and multiple freeze/thaw cycles
Storage Class
10 - Combustible liquids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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