CD22 Antibody (YA3866)

(Synonyms: SIGLEC2; SIGLEC-2)
Customer Review

Based on 1 Customer Validation

CD22 Antibody (YA3866) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to CD22.

For research use only. We do not sell to patients.
  • Host:

    Mouse

  • Isotype:

    IgG

  • Application:

    WB, IHC-P, ICC/IF, FC, ELISA

  • Reactivity :

    Human

  • Formulation:

    Supplied in PBS with 0.05% sodium azide

  • Conjugation:
    Non-conjugated

Applications

Application
WB Info
WB: Western Blot
IHC-P Info
IHC-P: Immunohistochemistry-Paraffin
ICC/IF Info
ICC/IF: Immunocytochemistry/
Immunofluorescence
FC Info
FC: Flow Cytometry
ELISA Info
ELISA: Enzyme Linked Immunosorbent Assay
Dilution Ratio 1:500-1:2000 1:200-1:1000 1:50-1:200 1:200-1:400 1:10000

Product Details

Description

CD22 Antibody (YA3866) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to CD22.

  • Host Mouse
  • Clonality Monoclonal
  • Species Reactivity
    Human
  • Observed Molecular Weight
    Observed band size: 80-95 kDa Info
    Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
  • Calculated Molecular Weight Predicted band size: 95 kDa
Immunogen

Purified recombinant fragment of human CD22 (AA: 621-725) expressed in E. Coli.

Purification

affinity purified.

Conjugation

Non-conjugated

Modification

Unmodified

Isotype

IgG

Product Properties

  • Appearance

    Solution

  • Formulation

    Supplied in PBS with 0.05% sodium azide

  • Concentration

    Batch-dependent, Please check the COA for the concentration of each lot. Check Lot Concentration

  • Storage & Stability

    Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

  • Shipping

    Shipping with blue ice.

Verification Images

  • Experimental Validation Results for CD22 Antibody (YA3866)
    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.
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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.
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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.
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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.
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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.
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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.
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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.
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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).
  • Experimental Validation Results for CD22 Antibody (YA3866)
    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

  • 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

  • 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

  • SwissProt ID

    P20273

  • Gene ID
    933 [NCBI]
  • Synonyms

    SIGLEC2; SIGLEC-2

CD22 Antibody (YA3866) Related Classifications

MOQ
Minimum order quantity
100 mg

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