CD22 Protein (AA 20-687) (His tag,Fc Tag)

Catalog No. ABIN6961078

This Recombinant CD22 protein is expressed in HEK-293 Cells.

Quick Overview for CD22 Protein (AA 20-687) (His tag,Fc Tag) (ABIN6961078)

Target: CD22 (CD22 Molecule (CD22))

Protein Type: Recombinant

Origin: Human

Source: HEK-293 Cells

Application: Affinity Measurement (AM), Antibody Drug Assay (ADA), Immunoassay (IA), Screening Assay (ScA)

Purity: The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.

Product Details

Protein Characteristics: AA 20-687

Purification tag / Conjugate: This CD22 protein is labelled with His tag,Fc Tag.

Purpose: Recombinant human CD22 protein with C-terminal human Fc and 6xHis tag

Specificity: CD22(Asp20-Arg687) hFc(Glu99-Ala330) 6xHis tag

Characteristics: Extracellular Domain Protein

Purification: Purified from cell culture supernatant by affinity chromatography

Application Details

Application Notes: Extracellular Domain Proteins (ECD) can be used as:

• Immunogens for antibody drug development
• Reagents used for CAR-T positive cell monitoring
• Reagents for antibody screening and functional testing
• Reagents for antibody affinity measurement

Comment:

The protein was produced using HEK293 mammalian cell secretion expression system to ensure the close-to-native structures and post-translational modifications of the target protein.

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Please see Certificate of Analysis for specific instructions of reconstitution.

Buffer: Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose is added as protectants before lyophilization.

Storage: -20 °C,-80 °C

Storage Comment: Store at -20°C to -80°C for 12 months in lyophilized form. After reconstitution, if not intended for use within a month, aliquot and store at -80°C (Avoid repeated freezing and thawing). Lyophilized proteins are shipped at ambient temperature.

Expiry Date: 12 months

Target Details

Target: CD22 (CD22 Molecule (CD22))

Alternative Name: CD22

Background: CD22,SIGLEC2,BL-CAM,SIGLEC-2,Siglec2,SIGLEC2FLJ22814
B-cell receptor CD22 is also known as Sialic acid-binding Ig-like lectin 2 (Siglec-2), B-lymphocyte cell adhesion molecule (BL-CAM), T-cell surface antigen Leu-14, which belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. CD22 mediates B-cell B-cell interactions, and may be involved in the localization of B-cells in lymphoid tissues. Siglec-2 / CD22 binds sialylated glycoproteins, one of which is CD45. Siglec2 / CD22 plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.

Molecular Weight: predicted molecular mass of 102.1 kDa after removal of the signal peptide. The apparent molecular mass of CD22-hFc-His is 130-180 kDa due to glycosylation.

Gene ID: 933

UniProt: P20273