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产品名称:Recombinant Human beta-Cellulin|重组人β细胞素|纯度> 98 %|厂家|技术资料|价格
Catalog Number: C22-107-12 Source: Escherichia coli. Molecular Weight: Recombinant human Betacellulin is a 9.0 kDa monomeric protein, containing 80 amino residues, which comprises the mature EGF homologous portion of the Betacellulin protein. Quantity: 5µg/20µg/1000µg AA Sequence: DGNSTRSPET NGLLCGDPEE NCAATTTQSK RKGHFSRCPK QYKHYCIKGR CRFVVAEQTP SCVCDEGYIG ARCERVDLFY Purity: > 98 % by SDS-PAGE and HPLC analyses. Biological Activity: Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine Balb/c 3T3 cells is less than 0.05 ng/ml, corresponding to a specific activity of > 2.0 × 10*7IU/mg. Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder. Formulation: Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.4. Endotoxin: Less than 1 EU/µg of rHuBTC as determined by LAL method. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions. Storage: This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
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