CD22 Protein (Transcript Variant 1)

Catalog No. ABIN2713508

Recombinant CD22 protein expressed in CHO Cells.

Quick Overview for CD22 Protein (Transcript Variant 1) (ABIN2713508)

Target: CD22 (CD22 Molecule (CD22))

Protein Type: Recombinant

Biological Activity: Active

Origin: Human

Source: CHO Cells

Application: Antibody Production (AbP), Standard (STD), Functional Studies (Func), Protein Interaction (PI)

Purity: > 95 % as determined by SDS-PAGE and Coomassie blue staining

Product Details

Protein Characteristics: Transcript Variant 1

Specificity: Optimal preservation of protein structure, post-translational modifications and functions.

Characteristics:

• Recombinant human CD22 (transcript variant 1) protein expressed in CHO cells.
• Produced with end-sequenced ORF clone
• Tested for bioactivity.

Endotoxin Level: Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).

Biological Activity Comment: Determined by its ability to inhibit the proliferation of Raji cells. The expected ED50 for this effect is 10-17ug/mL.

Application Details

Application Notes: Recombinant human proteins can be used for:
Native antigens for optimized antibody production
Positive controls in ELISA and other antibody assays
Protein-protein interaction
In vitro biochemical assays and cell-based functional assays

Restrictions: For Research Use only

Handling

Buffer: Lyophilized from a 0.2 μM filtered solution of 20 mM phosphate buffer,100 mM NaCl, pH 7.2

Handling Advice: Resuspend the protein in the desired concentration in proper buffer

Storage: -80 °C

Storage Comment: Store at -80°C. Thaw on ice, aliquot to individual single-use tubes, and then re-freeze immediately. Only 2-3 freeze thaw cycles are recommended.

Target Details

Target: CD22 (CD22 Molecule (CD22))

Alternative Name: CD22

Background: Mediates B-cell B-cell interactions. May be involved in the localization of B-cells in lymphoid tissues. Binds sialylated glycoproteins one of which is CD45. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site can be masked by cis interactions with sialic acids on the same cell surface. Upon ligand induced tyrosine phosphorylation in the immune response seems to be involved in regulation of B-cell antigen receptor signaling. 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. [UniProtKB/Swiss-Prot Function]

Molecular Weight: 75 kDa

NCBI Accession: NP_001762