6KDA early secretory antigenic target (esxA), partial, Mycobacterium tuberculosis, recombinant

Organism: Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh). Source: Yeast. Expression Region: 6-95aa. Protein Length: Partial. Tag Info: N-terminal 6xHis-tagged. Target Protein Sequence: WNFAGIEAAA SAIQGNVTSI HSLLDEGKQS LTKLAAAWGG SGSEAYQGVQ QKWDATATEL NNALQNLART ISEAGQAMAS TEGNVTGMFA. 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: Not known. Elicits high level of IFN-gamma from mory effector cells during the first phase of a protective immune response. Reference: Mutually dependent secretion of proteins required for mycobacterial virulence.Fortune S.M., Jaeger A., Sarracino D.A., Chase M.R., Sassetti C.M., Sherman D.R., Bloom B.R., Rubin E.J.Proc. Natl. Acad. Sci. U.S.A. 102:10676-10681(2005). Function: A secreted protein that plays a number of roles in modulating the host's immune response to infection as well as being responsible for bacterial escape into the host cytoplasm. Acts as a strong host (human) T-cell antigen