Low affinity immunoglobulin epsilon Fc receptor (FCER2), partial, human, recombinant

Organism: Homo sapiens (Human). Source: Mammalian cell. Expression Region: 48-321aa. Protein Length: Partial. Tag Info: N-terminal 6xHis-tagged. Target Protein Sequence: DTTQSLKQLE ERAARNVSQV SKNLESHHGD QMAQKSQSTQ ISQELEELRA EQQRLKSQDL ELSWNLNGLQ ADLSSFKSQE LNERNEASDL LERLREEVTK LRMELQVSSG FVCNTCPEKW INFQRKCYYF GKGTKQWVHA RYACDDMEGQ LVSIHSPEEQ DFLTKHASHT GSWIGLRNLD LKGEFIWVDG SHVDYSNWAP GEPTSRSQGE DCVMMRGSGR WNDAFCDRKL GAWVCDRLAT CTPPASEGSA ESMGPDSRPD PDGRLPTPSA PLHS. Purity: Greater than 85% 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: Low-affinity receptor for immunoglobulin E and CR2/CD21. Has essential roles in the regulation of IgE production and in the differentiation of B-cells . Reference: "Human lymphocyte Fc receptor for IgE: sequence homology of its cloned cDNA with animal lectins." Ikuta K., Takami M., Kim C.W., Honjo T., Miyoshi T., Tagaya Y., Kawabe T., Yodoi J. Proc. Natl. Acad. Sci. U.S.A. 84:819-823(1987). Function: nan