CD22.2

Mouse DBA/1 IgG1, κ

B10.D2 mouse splenocytes

The Cy34.1 monoclonal antibody specifically binds to the B-lymphocyte differentiation antigen CD22 on strains having the Lyb-8.2 alloantigen ( e.g ., A, BALB/c, CBA, C3H/He, C57BL, C57L, C58, SJL, SWR, but not AKR, DBA/1, DBA/2, NZB, PL). CD22 is expressed at high levels on mature peripheral B lymphocytes (follicular  and marginal zone), B-1 cells (CD5+ B cells), and plasma cells.  It is a member of the Ig gene superfamily and associates with the B-cell antigen receptor. Its sialic acid- binding immunoglobulin-like lectin (siglec) extracellular region mediates B-cell adhesion to ligands on endothelial cells in the bone marrow.  Its intracellular  domain is phosphorylated after cross-linking of antigen receptor  or MHC class II antigen.  It is involved in negative regulation of B-cell activation and protection from autoimmunity.  B-cell proliferative responses to LPS or anti-mouse Ig µ chain are augmented in the presence of Cy34.1 mAb. This antibody is routinely tested by flow cytometric analysis.  Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in literature.

Cy34.1 The Cy34.1 monoclonal antibody specifically binds to the B-lymphocyte differentiation antigen CD22 on strains having the Lyb-8.2 alloantigen ( e.g ., A, BALB/c, CBA, C3H/He, C57BL, C57L, C58, SJL, SWR, but not AKR, DBA/1, DBA/2, NZB, PL). CD22 is expressed at high levels on mature peripheral B lymphocytes (follicular  and marginal zone), B-1 cells (CD5+ B cells), and plasma cells.  It is a member of the Ig gene superfamily and associates with the B-cell antigen receptor. Its sialic acid- binding immunoglobulin-like lectin (siglec) extracellular region mediates B-cell adhesion to ligands on endothelial cells in the bone marrow.  Its intracellular  domain is phosphorylated after cross-linking of antigen receptor  or MHC class II antigen.  It is involved in negative regulation of B-cell activation and protection from autoimmunity.  B-cell proliferative responses to LPS or anti-mouse Ig µ chain are augmented in the presence of Cy34.1 mAb. This antibody is routinely tested by flow cytometric analysis.  Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in literature.

Mouse DBA/1 IgG1, κ

克隆 Cy34.1 (RUO)

0.5 mg/ml

Flow cytometry (Routinely Tested), Immunohistochemistry-frozen (Tested During Development), Immunoprecipitation (Reported)

Mouse (QC Testing)

CD22

Lyb8.2; Lyb-8.2; BL-CAM; Siglec-2

Aqueous buffered solution containing ≤0.09% sodium azide.

研发参考(11) 1. Bobbitt KR, Justement LB. Regulation of MHC class II signal transduction by the B cell coreceptors CD19 and CD22. J Immunol. 2000; 165(10):5588-5596. (Biology). 2. Doody GM, Justement LB, Delibrias CC. A role in B cell activation for CD22 and the protein tyrosine phosphatase SHP. Science. 1995; 269(5221):242-244. (Biology). 3. Erickson LD, Tygrett LT, Bhatia SK, Grabstein KH, Waldschmidt TJ. Differential expression of CD22 (Lyb8) on murine B cells. Int Immunol. 1996; 8(7):1121-1129. (Biology). 4. Law CL, Sidorenko SP, Clark EA. Regulation of lymphocyte activation by the cell-surface molecule CD22. Immunol Today. 1994; 15(9):442-449. (Biology). 5. Law CL, Torres RM, Sundberg HA. Organization of the murine Cd22 locus. Mapping to chromosome 7 and characterization of two alleles. J Immunol. 1993; 151(1):175-187. (Clone-specific). 6. Mary C, Laporte C, Parzy D. Dysregulated expression of the Cd22 gene as a result of a short interspersed nucleotide element insertion in Cd22a lupus-prone mice. J Immunol. 2000; 165(6):2987-2996. (Biology). 7. Nitschke L, Floyd H, Ferguson DJ, Crocker PR. Identification of CD22 ligands on bone marrow sinusoidal endothelium implicated in CD22-dependent homing of recirculating B cells. J Exp Med. 1999; 189(9):1513-1518. (Biology). 8. O'Keefe TL, Williams GT, Davies SL, Neuberger MS. Hyperresponsive B cells in CD22-deficient mice. Science. 1996; 274(5288):798-801. (Biology). 9. Stall AM, Wells SM. FACS analysis of murine B-cell populations. In: Herzenberg LA, Weir DM, Blackwell C, ed. Weir's Handbook of Experimental Immunology. Blackwell Science Publishers; 1997:63.1-63.17. 10. Stoddart A, Ray RJ, Paige CJ. Analysis of murine CD22 during B cell development: CD22 is expressed on B cell progenitors prior to IgM. Int Immunol. 1997; 9(10):1571-1579. (Biology). 11. Symington FW, Subbarao B, Mosier DE, Sprent J. Lyb-8.2: A new B cell antigen defined and characterized with a monoclonal antibody. Immunogenetics. 1982; 16(5):381-391. (Immunogen: Immunoprecipitation).

12483