CD22 Antibody
Recognizes a protein of 130-140kDa, identified as CD22 (also known as BL-CAM) . CD22 expression is restricted to normal and neoplastic B cells and is absent from other haemopoietic cell types. In B-cell ontogeny, CD22 is first expressed in the cytoplasm of pro-B and pre-B cells, and on the surface as B cells mature to become IgD+. It is not expressed by plasma cells, CD22 is found highly expressed in follicular mantle and marginal zone B-cells, and while germinal center B-cells are relatively weak. CD22 is a member of the immunoglobulin superfamily and serves as an adhesion receptor for sialic acid-bearing ligands expressed on erythrocytes and all leukocyte classes. It also associates with tyrosine kinases and play a role in signal transduction and B-cell activation.
Product Specifications
CAS Number
9007-83-4
Specifications
ELISA: 2-4 µg/mL (order BSA/azide-free format), Western blot: 1-2 µg/mL, Flow cytometry: 1-2ug/10^6 cells, Immunofluorescence: 1-2 µg/mL
UniProt
P20273
Host
Mouse
Reactivity
Human
Immunogen
Amino acids 52-178 from the human protein were used as the immunogen for the CD22 antibody.
Clonality
Monoclonal
Isotype
IgG2b κ
Clone
BLCAM/1796
Applications
ELISA, WB, FACS, IF
Purity
Protein G affinity chromatography
Format
Purified
Buffer
0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide
Reconstitution
Store the CD22 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Limitations
This CD22 antibody is available for research use only.
Storage Conditions
Store the CD22 antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide) .
Formulation
0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced) and 0.05% sodium azide
Applications Notes
Optimal dilution of the CD22 antibody should be determined by the researcher.
Location
Cell surface, cytoplasmic
Image Legend
Immunofluorescent staining of human Ramos cells with CD22 antibody (clone BLCAM/1796, green) and Reddot nuclear stain (red) .
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