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CD22 Antibody (MA1-19642) in Flow
Separation of human CD22 positive lymphocytes (red-filled) from CD22 negative lymphocytes (black-dashed) in flow cytometry analysis (surface staining) of human peripheral whole blood stained using anti-human CD22 (MEM-01) PE Monoclonal antibody (Product # MA1-19642) using a dilution of 20 µL reagent/100 µL of peripheral whole blood.
Product Details
MA1-19642
Product Specifications
Species Reactivity
Human,
Non-human primate
Host/Isotype
Mouse
/ IgG1
Class
Monoclonal
Type
Antibody
Clone
MEM-01
Immunogen
Burkitt's lymphoma cell line Raji.
Conjugate
Excitation/Emission Max
565/576 nm
View spectra
Form
Liquid
Purification
Size-exclusion chromatography
Storage buffer
PBS, pH 7.4, with 0.2% BSA
Contains
15mM sodium azide
Storage conditions
4° C, store in dark, DO NOT FREEZE!
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_1071685
Product Specific Information
This antibody recognizes uniquely epitope "E"; it does not cross-block antibodies RFB-4, CLB22/1 and CLB-BLy1.
Target Information
CD22 (BL-CAM) is a type 1 integral membrane glycoprotein with molecular weight of 130 to 140 kDa. CD22 is expressed in both the cytoplasm and cell membrane of B-lymphocytes. CD22 antigen appears early in B-cell lymphocyte differentiation at approximately the same stage as the CD19 antigen. Unlike other B-cell markers, CD22 membrane expression is limited to the late differentiation stages comprised between mature B cells (CD22+) and plasma cells (CD22-), and may thus prove useful in phenotyping mature leukemias. CD22 is also strongly expressed in hairy cell leukemia. CD22 preferentially binds to alpha2,6-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. 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. CD22 is also strongly expressed in hairy cell leukemia. CD22 is also positive in diffuse large B-cell lymphoma and nodular lymphocyte predominance Hodgkin’s lymphoma, but negative in classical Hodgkin’s lymphoma.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: B-cell receptor CD22; B-lymphocyte cell adhesion molecule; B-lymphocyte cell adhesion molecule (BL-CAM); BL-CAM; CD22; CD22 antigen; FLJ22814; Lectin 2; Leu-14; MGC130020; sialic acid binding Ig-like lectin 2; Sialic acid-binding Ig-like lectin 2; Sialic acid-binding Ig-like lectin 2 (Siglec-2); Siglec-2; T-cell surface antigen Leu-14
Gene Aliases: CD22; SIGLEC-2; SIGLEC2
UniProt ID: (Human) P20273
Entrez Gene ID: (Human) 933
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