Thermo Fisher Scientific CD22/BL-CAM Recombinant Rabbit Monoclonal Antibody (BLCAM, 2637R)
인간 CD22(BL-CAM) 단백질을 인식하는 재조합 토끼 단클론 항체입니다. IHC(P)에서 1–2 µg/mL로 사용 가능하며, 형질세포 유래 HEK293 시스템에서 발현되었습니다. 단백질 A/G 정제, PBS 완충액(0.05% BSA) 포함, 4°C 보관 조건입니다.
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Applications and Tested Dilution
- Immunohistochemistry (Paraffin) (IHC (P)): 1–2 µg/mL
Product Specifications
| 항목 | 내용 |
|---|---|
| Species Reactivity | Human |
| Host / Isotype | Rabbit / IgG |
| Expression System | HEK293 cells |
| Class | Recombinant Monoclonal |
| Type | Antibody |
| Clone | BLCAM, 2637R |
| Immunogen | Recombinant fragment (around aa52–178) of human BL-CAM, CD22 protein |
| Conjugate | Unconjugated |
| Form | Liquid |
| Concentration | 200 µg/mL |
| Purification | Protein A/G |
| Storage Buffer | PBS, pH 7.4, with 0.05% BSA |
| Contains | 0.05% sodium azide |
| Storage Conditions | 4°C |
| Shipping Conditions | Ambient (domestic); Wet ice (international) |
Product Specific Information
- For IHC with PFA-fixed tissues: incubate antibody for 30 minutes at room temperature.
- Staining of formalin-fixed tissues requires heating in 10 mM Tris with 1 mM EDTA (pH 9.0) at 95°C for 45 minutes, followed by cooling at room temperature for 20 minutes.
Target Information
CD22 (BL-CAM) is a type I integral membrane glycoprotein with a molecular weight of 130–140 kDa. It is expressed in both the cytoplasm and cell membrane of B-lymphocytes and appears early in B-cell differentiation, similar to CD19.
Membrane expression is limited to mature B cells (CD22+) and absent in plasma cells (CD22–), making it useful for phenotyping mature leukemias. CD22 is strongly expressed in hairy cell leukemia and is positive in diffuse large B-cell lymphoma and nodular lymphocyte predominance Hodgkin’s lymphoma but negative in classical Hodgkin’s lymphoma.
It preferentially binds to α2,6-linked sialic acid, and its recognition site can be masked by cis interactions. Upon ligand-induced tyrosine phosphorylation, CD22 regulates B-cell receptor signaling by interacting with Src family kinases and recruiting phosphatases that modulate signaling pathways.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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