Active Recombinant Human CD22 Protein, LIgG2b Fc-tagged, low endotoxin

• Cat.No.: CD22-333H
• Product Overview: Recombinant Human CD22 Protein, LIgG2b Fc-tagged, low endotoxin is expressed from human 293 cells (HEK293). It contains AA Asp 20 - Arg 687 (Accession # P20273-1). Predicted N-terminus: Asp 20. This protein carries a llama IgG2b Fc tag at the C-terminus. The protein has a calculated MW of 103.0 kDa. The protein migrates as 120-140 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Specification

• Species: Human
• Source: HEK293
• Tag: lIgG2b
• Protein Length: Asp 20 - Arg 687
• Form: Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.
• Bio-activity: Immobilized Recombinant Human CD22 Protein, LIgG2b Fc-tagged, low endotoxin at 2 μg/mL (100 μL/well) can bind Anti-Human CD22 with a linear range of 4-63 ng/mL (QC tested).
• Molecular Mass: 103.0 kDa
• Endotoxin: Less than 0.01 EU per μg by the LAL method.
• Purity: >95% as determined by SDS-PAGE.
• Notes: Please avoid repeated freeze-thaw cycles.
• Stability: No activity loss is observed after storage at:
  4-8 centigrade for 12 months in lyophilized state;
  -70 centigrade for 3 months under sterile conditions after reconstitution.
• Storage: For long term storage, the product should be stored at lyophilized state at -20 centigrade or lower.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 mg/ml. Centrifuge the vial at 4 centigrade before opening to recover the entire contents.

Gene Information

• Gene Name: CD22 CD22 molecule [ Homo sapiens ]
• Official Symbol: CD22
• Synonyms: CD22; CD22 molecule; CD22 antigen; B-cell receptor CD22; SIGLEC 2; SIGLEC2; BL-CAM; SIGLEC-2; FLJ22814; MGC130020
• Gene ID: 933
• mRNA Refseq: NM_001185099
• Protein Refseq: NP_001172028
• MIM: 107266
• UniProt ID: P20273