CD22 antibody (AA 52-178) (CF®740)
Quick Overview for CD22 antibody (AA 52-178) (CF®740) (ABIN7651010)
Target
See all CD22 AntibodiesReactivity
Host
Clonality
Conjugate
Application
Clone
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Binding Specificity
- AA 52-178
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Purpose
- CD22 / BL-CAM (BLCAM/1795), CF740 conjugate
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Characteristics
- This antibody recognizes a protein of 130-140 kDa, 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. Primary antibodies are available purified, or with a selection of fluorescent CF® Dyes and other labels. CF® Dyes offer exceptional brightness and photostability. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.
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Immunogen
- Recombinant human BL-CAM/CD22 protein (aa52-178)
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Isotype
- IgG1, kappa
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Application Notes
- Higher concentration may be required for direct detection using primary antibody conjugates than for indirect detection with secondary antibody. ELISA: 2-4 μg/mL for coating order Ab without BSA. Immunofluorescence: 0.5-1 μg/mL. Immunohistology (formalin) 1-2 μg/mL. Staining of formalin-fixed tissues requires boiling tissue sections in 10 mM Tris buffer with 1 mM EDTA pH 9.0 for 10-20 min followed by cooling at RT for 20 min. Flow Cytometry 0.5-1 μg/million cells/0.1 mL. Western blotting 0.5-1 μg/mL. Optimal dilution for a specific application should be determined by user
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Comment
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Positive Control: Raji, Daudi, IM9, JY25 and human peripheral blood lymphocytes. Human Tonsil
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Restrictions
- For Research Use only
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Format
- Liquid
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Concentration
- 0.1 mg/mL
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Buffer
- PBS, 0.1 % rBSA, 0.05 % azide
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Preservative
- Sodium azide
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Precaution of Use
- This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
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Handling Advice
- Protect from light
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Storage
- 4 °C
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Storage Comment
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Stable at room temperature or 37°C for 7 days.
Protect from light
Store at 2 to 8°C. Protect fluorescent conjugates from light
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Expiry Date
- 24 months
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- CD22 (CD22 Molecule (CD22))
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Alternative Name
- BL-CAM
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Background
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Synonyms: B-lymphocyte cell adhesion molecule (BL-CAM), B-cell receptor CD22, CD22, Lectin 2, Lyb8, Sialic acid-binding Ig-like lectin 2 (Siglec-2), SIGLEC2, T-cell surface antigen Leu-14
Gene Symbol: CD22
Tissue Expression: B-cells|Lymphocytes
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Molecular Weight
- 130-140 kDa
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Gene ID
- 933
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UniProt
- P20273
Target
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