CD22 Polyclonal antibody

CD22 Polyclonal Antibody for WB, IHC, ELISA

Host / Isotype

Rabbit / IgG

Reactivity

human

Applications

WB, IHC, ELISA

Conjugate

Unconjugated

Publications

1

Cat no : 21894-1-AP

Synonyms

B cell receptor CD22, BL CAM, CD22, CD22 molecule, SIGLEC 2, SIGLEC2, T cell surface antigen Leu 14

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Validation Data Gallery

• 

  WB analysis using 21894-1-AP

  Various lysates were subjected to SDS PAGE followed by western blot with 21894-1-AP (CD22 antibody) at dilution of 1:2000 incubated at room temperature for 1.5 hours.

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  IHC staining of human tonsillitis using 21894-1-AP

  Immunohistochemical analysis of paraffin-embedded human tonsillitis tissue slide using 21894-1-AP (CD22 antibody) at dilution of 1:200 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

• 

  IHC staining of human tonsillitis using 21894-1-AP

  Immunohistochemical analysis of paraffin-embedded human tonsillitis tissue slide using 21894-1-AP (CD22 antibody) at dilution of 1:200 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

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Tested Applications

• Positive WB detected in: Daudi cells, Ramos cells
• Positive IHC detected in: human tonsillitis tissue; Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0

Recommended dilution

• Western Blot (WB): WB : 1:1000-1:4000
• Immunohistochemistry (IHC): IHC : 1:50-1:500

It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Sample-dependent, Check data in validation data gallery.

Published Applications

• IHC: See 1 publications below

Product Information

The immunogen of 21894-1-AP is CD22 Fusion Protein expressed in E. coli.

• Tested Reactivity: human
• Cited Reactivity: human
• Host / Isotype: Rabbit / IgG
• Class: Polyclonal
• Type: Antibody
• Immunogen: CD22 fusion protein Ag16607
• Full Name: CD22 molecule
• Calculated Molecular Weight: 847 aa, 95 kDa
• Observed Molecular Weight: 120-140 kDa
• GenBank Accession Number: BC109306
• Gene Symbol: CD22
• Gene ID (NCBI): 933
• RRID: AB_2878937
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Antigen affinity purification
• Storage Buffer: PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
• Storage Conditions: Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC storage. 20ul sizes contain 0.1% BSA.

Background Information

CD22, also known as Siglec-2 (sialic acid binding Ig-like lectin 2) or BL-CAM (B-lymphocyte cell adhesion molecule), is a 130-140 kDa, B-cell restricted, type I transmembrane glycoprotein belonging to the immunoglobulin gene superfamily. The expression of CD22 is developmentally regulated. It is expressed at low levels in the cytoplasm of pro-B and pre-B cells and present on the cell surface only at mature stages of B-cell differentiation. Cell surface expression is lost during terminal differentiation into plasma cell and after B-cell activation. CD22 is an inhibitory receptor for B-cell receptor (BCR) signalling, preferentially binds to alpha-2,6-linked sialic acid and mediates B-cell B-cell interactions. It plays a crucial role in activation and differentiation of the B-cell.

Publications

Species	Application	Title
human	IHC	Oncol Lett; Identification of prognostic biomarkers associated with metastasis and immune infiltration in osteosarcoma.; Authors - Bingsheng Yang

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