CD22 is a surface glycoprotein of B lymphocytes that is rapidly phosphorylated on cytoplasmic tyrosines after antigen receptor cross-linking. It is a negative regulator of antigen receptor signaling whose onset of expression at the mature B cell stage may serve to raise the antigen concentration threshold required for B cell triggering. The human CD22 gene is expressed specifically in B lymphocytes and likely has an important function in cell-cell interactions. The B cell coreceptor CD22 plays an important role in regulating signal transduction via the B cell Ag receptor. And CD22 is located within the band region q13.1 of chromosome 19.
Formulation
0.5mg/ml if reconstituted with 0.2ml sterile DI water
Host
Mouse
Immunogen Region
Amino acids LAILILAICGLKLQRRWKRTQSQQGLQEN were used as the immunogen for the CD22 antibody.
Isotype
IgG2b
Predicted Reactivity
Human
Reactivity
Human
Recombinant
No
Antigen
CD22
Uniprot
P20273
Clone No
5E7.
Buffer
Lyophilized from 1X PBS with 2% Trehalose and 0.025% sodium azide
Format
Antigen affinity purified
Purification
Affinity purified
Storage
After reconstitution, the CD22 antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.
Applications
WB, FACS
Dilution
Western blot: 0.5-1ug/ml,Flow cytometry: 1-3ug/million cells