Exfoliative toxin A (eta), Staphylococcus aureus, recombinant

Organism: Staphylococcus aureus. Source: E.coli. Expression Region: 39-280aa. Protein Length: Full Length of Mature Protein. Tag Info: N-terminal 6xHis-tagged. Target Protein Sequence: EVSAEEIKKH EEKWNKYYGV NAFNLPKELF SKVDEKDRQK YPYNTIGNVF VKGQTSATGV LIGKNTVLTN RHIAKFANGD PSKVSFRPSI NTDDNGNTET PYGEYEVKEI LQEPFGAGVD LALIRLKPDQ NGVSLGDKIS PAKIGTSNDL KDGDKLELIG YPFDHKVNQM HRSEIELTTL SRGLRYYGFT VPGNSGSGIF NSNGELVGIH SSKVSHLDRE HQINYGVGIG NYVKRIINEK NE. Purity: Greater than 90% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. Form: Liquid or Lyophilized powder. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 °C for up to one week. Relevance: Has serine protease-like properties and binds to the skin protein profilaggrin. Cleaves substrates after acidic residues. Exfoliative toxins cause impetigous diseases commonly referred as staphylococcal scalded skin syndrome (SSSS). Reference: Sequence determination and comparison of the exfoliative toxin A and toxin B genes from Staphylococcus aureus.Lee C.Y., Schmidt J.J., Johnson-Winegar A.D., Spero L., Iandolo J.J.J. Bacteriol. 169:3904-3909(1987). Function: Has serine protease-like properties and binds to the skin protein profilaggrin. Cleaves substrates after acidic residues. Exfoliative toxins cause impetigous diseases commonly referred as staphylococcal scalded skin syndrome (SSSS).