CD22 Antibody (YA3866)
(Synonyms: SIGLEC2; SIGLEC-2)Based on 1 Customer Validation
CD22 Antibody (YA3866) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to CD22.
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Host:
Mouse
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Isotype:
IgG
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Application:
WB, IHC-P, ICC/IF, FC, ELISA
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Reactivity :
Human
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Formulation:
Supplied in PBS with 0.05% sodium azide
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Conjugation:
Non-conjugated
Applications
| Application |
WB
WB: Western Blot
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IHC-P
IHC-P: Immunohistochemistry-Paraffin
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ICC/IF
ICC/IF: Immunocytochemistry/
Immunofluorescence |
FC
FC: Flow Cytometry
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ELISA
ELISA: Enzyme Linked Immunosorbent Assay
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|---|---|---|---|---|---|
| Dilution Ratio | 1:500-1:2000 | 1:200-1:1000 | 1:50-1:200 | 1:200-1:400 | 1:10000 |
Product Details
CD22 Antibody (YA3866) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to CD22.
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Host Mouse
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Clonality Monoclonal
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Species ReactivityHuman
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Observed Molecular WeightObserved band size: 80-95 kDaNote: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
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Calculated Molecular Weight Predicted band size: 95 kDa
Purified recombinant fragment of human CD22 (AA: 621-725) expressed in E. Coli.
affinity purified.
Non-conjugated
Unmodified
IgG
Product Properties
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Appearance
Solution
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Formulation
Supplied in PBS with 0.05% sodium azide
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Concentration
Batch-dependent, Please check the COA for the concentration of each lot. Check Lot Concentration
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Storage & Stability
Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.
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Shipping
Shipping with blue ice.
Verification Images
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Western blot analysis of extracts from L1210(lane 1(40μg) ),Raji(lane 2(40μg) ),Ramos(lane 3(40μg) ),Raw246.7(lane 4(40μg) ),HEK293(lane 5(40μg) ), Jurkat(lane 6(40μg) ),Hela(lane 7(40μg) )and Mouse spleen(lane 8(40μg) ) using CD22 antibody. Proteins were transferred to a NC membrane and blocked with 5% Skim milk in TBST for 2 hour at room temperature. The primary antibody ( 1/1000) and Loading control antibody (GAPDH,1/1000) was used in 5% Skim milk in TBST at 4°C overnight. Goat Anti-Mouse IgG-HRP Secondary Antibody (1/10,000) was used for 1 hour at room temperature.
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Immunohistochemical analysis of paraffin-embedded human liver cancer tissue using CD22 Antibody (HY-P84169, 1/800). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human thyroid cancer tissue using CD22 Antibody (HY-P84169, 1/800). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human lymphoma tissue using CD22 Antibody (HY-P84169, 1/800). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human spleen tissue using CD22 Antibody (HY-P84169, 1/800). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human lymph node tissue using CD22 Antibody (HY-P84169, 1/800). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human tonsil tissue using CD22 Antibody (HY-P84169, 1/800). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Flow cytometric analysis of 1X10^6 Ramos cells labeling CD22 Antibody(red). Cells were fixed with 4% paraformaldehyde and permeabilised with 0.2% Triton X-100. Then stained with the primary antibody at 1/400 dilution overnight at 4℃. AF 488 Goat Anti-mouse IgG H&L was used as the secondary antibody at 1/1,000 dilution for 45 minutes at room temperature. Mouse IgG Isotype Control (blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).
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Immunofluorescence analysis of Hela cells labeling CD22 antibody at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature.Cells were then incubated with CD22 antibody at 1/50 dilution in 1% BSA in PBST overnight at 4 ℃. AF 488 Goat Anti-mouse IgG H&L (green) was used as the secondary antibody at 1/500 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue)
Background
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Function
CD22 (Siglec 2) is a 135-kDa B-cell restricted antigen, and is an inhibitory coreceptor of the B-cell receptor (BCR) . The extracellular portion of CD22 comprises seven immunoglobulin domains, and is responsible for binding α2,6Sia ligands. Interaction with these ligands in cis (on the B-cell surface) regulates the association of CD22 with the BCR and thereby modulates the inhibitory function of CD22. Interaction of CD22 to ligands in trans (on the surface of other cells) can regulate both B-cell migration as well as the BCR signaling threshold.
CD22 can also recruit the tyrosine phosphatase Src homology 2 domain-containing phosphatase 1 (SHP-1) to immunoreceptor tyrosine-based inhibitory motifs (ITIMs) and inhibits BCR-induced Ca2+ signaling on normal B cells. CD22 is critical in maintaining a baseline level of B-cell inhibition and homeostasis in humoral immunity. CD22 is a target molecule in dysregulated B cells that cause autoimmune diseases and blood cancers[1][2]. -
Subcellular Localization
Cell membrane; Single-pass type I membrane protein
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Expression
Tissue_specificity:B lymphocytes -
Isoforms & Post-Translational Modification
P20273 has 5 isomers: P20273-1: 95348 Da (predicted); P20273-2: 75799 Da (predicted); P20273-3: 85675 Da (predicted); P20273-4: 84480 Da (predicted); P20273-5: 75354 Da (predicted).
Phosphorylation of Tyr-762, Tyr-807 and Tyr-822 are involved in binding to SYK, GRB2 and SYK, respectively. Phosphorylation of Tyr-842 is involved in binding to SYK, PLCG2 and PIK3R1/PIK3R2;Phosphorylated on tyrosine residues by LYN -
Subunit
Predominantly monomer of isoform CD22-beta. Also found as heterodimer of isoform CD22-beta and a shorter isoform. Interacts with PTPN6/SHP-1, LYN, SYK, PIK3R1/PIK3R2 and PLCG1 upon phosphorylation. Interacts with GRB2, INPP5D and SHC1 upon phosphorylation (By similarity). May form a complex with INPP5D/SHIP, GRB2 and SHC1
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SwissProt ID
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Synonyms
SIGLEC2; SIGLEC-2
Documentation
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Data Sheet (261 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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User Guide for Antibodies (1077 KB)