Activator of 90 kDa heat shock protein ATPase homolog 1 (AHSA1), human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 1-338aa. Protein Length: Full Length. Tag Info: N-terminal GST-tagged. Target Protein Sequence: MAKWGEGDPR WIVEERADAT NVNNWHWTER DASNWSTDKL KTLFLAVQVQ NEEGKCEVTE VSKLDGEASI NNRKGKLIFF YEWSVKLNWT GTSKSGVQYK GHVEIPNLSD ENSVDEVEIS VSLAKDEPDT NLVALMKEEG VKLLREAMGI YISTLKTEFT QGMILPTMNG ESVDPVGQPA LKTEERKAKP APSKTQARPV GVKIPTCKIT LKETFLTSPE ELYRVFTTQE LVQAFTHAPA TLEADRGGKF HMVDGNVSGE FTDLVPEKHI VMKWRFKSWP EGHFATITLT FIDKNGETEL CMEGRGIPAP EEERTRQGWQ RYYFEGIKQT FGYGARLF. 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: Cochaperone that stimulates HSP90 ATPase activity . May affect a step in the endoplasmic reticulum to Golgi trafficking. Reference: Isolation of a novel gene underexpressed in Down syndrome.Michaud J., Chrast R., Rossier C., Papassavas M.P., Antonarakis S.E., Scott H.S.Gene expression profiling in the human hypothalamus-pituitary-adrenal axis and full-length cDNA cloning.Hu R.-M., Han Z.-G., Song H.-D., Peng Y.-D., Huang Q.-H., Ren S.-X., Gu Y.-J., Huang C.-H., Li Y.-B., Jiang C.-L., Fu G., Zhang Q.-H., Gu B.-W., Dai M., Mao Y.-F., Gao G.-F., Rong R., Ye M. , Zhou J., Xu S.-H., Gu J., Shi J.-X., Jin W.-R., Zhang C.-K., Wu T.-M., Huang G.-Y., Chen Z., Chen M.-D., Chen J.-L.Proc. Natl. Acad. Sci. U.S.A. 97:9543-9548(2000). Function: Acts as a co-chaperone of HSP90AA1. Activates the ATPase activity of HSP90AA1 leading to increase in its chaperone activity. Competes with the inhibitory co-chaperone FNIP1 for binding to HSP90AA1, thereby providing a reciprocal regulatory mechanism for chaperoning of client proteins