Recombinant Mouse CD34 Protein (His Tag)(Active) Size: 50μg Catalogue Number: PKSM040592-50 Citations, Manuals and MSDS Available upon request. Abbreviation: CD34 Target Symptom: AU040960 Target Species: Mouse Expression Host: HEK293 Cells Application: Cell culture; ELISA Fusion Tag: C-His Accession: NP_001104529.1 Background: Cluster of Differentiation 34 (CD34) is a member of a family of single-pass transmembrane sialomucin proteins, and may function as a cell-cell adhesion factor. CD34 protein is selectively expressed on hematopoietic progenitor cells and the small vessel endothelium of a variety of tissues. It has been widely used as a stem and progenitor cell marker, and clinical CD34+ stem cell transplantation (CD34+SCT) has been performed for tumor purging. CD34 monoclonal antibodies are widely used to identify and isolate hemopoietic progenitors and to classify acute and chronic leukemias. Activity: Measured by the ability of the immobilized protein to support the adhesion of the HUVEC human umbilical vein endothelial cell line. When 4 x 10⁴ cells/well are added to mouse CD34 coated plates (0.8 μg/ml, 100 μl/well), approximately > 30 % will adhere after one hour at 37 ℃. Sequence: Met 1-Thr 287 Purity: > 98 % as determined by reducing SDS-PAGE. Formulation: Lyophilized from sterile PBS, pH 7.4 Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. Reconstitution: Please refer to the printed manual for detailed information. Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method. Calculated MW: 28.6 kDa Observed MW: 50-60 kDa Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. Shipping: This product is provided as lyophilized powder which is shipped with ice packs. Research Use Only