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Questions? Please consult our answers to frequently asked questions at http://www.ebioscience.com/faq. DescriptionThe eBio1D3 monoclonal antibody reacts with mouse CD19, a 95 kDa transmembrane glycoprotein. CD19 is expressed by B cells during all stages of development excluding the terminally differentiated plasma cells. Follicular dendritic cells also express CD19. Together CD21, CD81, MHC class II, and CD19 form a multimolecular complex that associates with the BCR. Signaling through CD19 induces tyrosine phosphorylation, calcium flux and proliferation of B cells. Applications ReportedFor research use only, not for diagnostic or therapeutic use. This eBio1D3 (1D3) antibody has been reported for use in flow cytometric analysis, immunoprecipitation, and immunohistology staining of frozen tissue sections. The eBio1D3 monoclonal antibody has also been reported to induce down-regulation of CD19, affecting the proportions of B-1a and B-2 B cells in mice. (Please use Functional Grade purified eBio1D3 (1D3), cat. 16-0193, in functional assays.) Applications TestedThis eBio1D3 (1D3) antibody has been tested by flow cytometric analysis of mouse splenocyte suspensions. This can be used at less than or equal to 0.5 μg per million cells in a 100 μl total staining volume. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. References
Cherukuri A, Cheng PC, Pierce SK. The role of the CD19/CD21 complex in B cell processing and presentation of complement-tagged antigens. J Immunol. 2001 Jul 1;167(1):163-72. Inabe K, Kurosaki T. Tyrosine phosphorylation of B-cell adaptor for phosphoinositide 3-kinase is required for Akt activation in response to CD19 engagement. Blood. 2002 Jan 15;99(2):584-9. Krop I, de Fougerolles AR, Hardy RR, Allison M, Schlissel MS, Fearon DT. Self-renewal of B-1 lymphocytes is dependent on CD19. Eur J Immunol. 1996 Jan;26(1):238-42. (1D3, FA, PubMed) Shoham T, Rajapaksa R, Boucheix C, Rubinstein E, Poe JC, Tedder TF, Levy S. The tetraspanin CD81 regulates the expression of CD19 during B cell development in a postendoplasmic reticulum compartment. J Immunol. 2003 Oct 15;171(8):4062-72. Krop I, Shaffer AL, Fearon DT, Schlissel MS. The signaling activity of murine CD19 is regulated during cell development. J Immunol. 1996 Jul 1;157(1):48-56. (1D3, FC, FA, PubMed) Related ProductsCat. 14-0191 Affinity Purified anti-mouse CD19 (clone MB19-1) Cat. 14-0192 Affinity Purified anti-mouse CD19 (clone 6D5) Cat. 14-0199 Affinity Purified anti-human CD19 (clone HIB19) Cat. 11-4317 Streptavidin-FITC (Fluorescein isothiocyanate) Cat. 12-4317 Streptavidin-PE (Phycoerythrin) Cat. 17-4317 Streptavidin Allophycocyanin (SA-APC) Cat. 14-4321 Affinity Purified Rat IgG2a Isotype Control Cat. 11-4811 FITC Anti-Rat IgG Cat. 13-4813 Biotin Anti-Rat IgG (clone Polyclonal) |
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