Mfg Part Number
Ab02210-10.3
Vector Labs Ab02210-10.3 Anti-CD19 [B4], Human IgG1, Fc Silent™, kappa (200 μg)
Quick Overview
The original antibody was generated against CD19 antigen present on human B cells.
$517.40
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| Product Class: | Purified |
|---|---|
| Clone ID: | B4 |
| Heavy Chain Modification: | Fc Silent™ |
| Synonyms: | B4 antigen; B-lymphocyte antigen CD19; B-lymphocyte surface antigen B4; Differentiation antigen CD19; T-cell surface antigen Leu-12 |
| Amount: | 200 μg |
| Application Codes Clone: | IF; FC; IHC |
| Shipping Temperature: | Wet Ice |
| Buffer Composition: | PBS with 0.02% Proclin 300. |
| Original Format: | IgG1 |
| Storage Temperature: | Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C. |
| Chimeric Use Statement: | This chimeric human antibody was made using the variable domain sequences of the original Mouse IgG1 format, for improved compatibility with existing reagents, assays and techniques. |
| Specificity Statement: | This antibody reacts with the B4 antigen present on the peripheral blood cells and lymphoid organs, on cell lines derived from normal and malignant B cells, and on tumor cells isolated from patients with B cell-derived neoplasms |
| Application Notes: | This antibody is recommended to be used for the cell surface expression of the B4 antigen. It is reported that in mitogen stimulated B cells the expression of the B4 antigen increases initially with the B cell activation and then is lost with the B cell differentiation (PMID: 6408173). Conjugate of DC1 with murine and humanizsed versions of anti-B4 antibody was found to be potent and effective in selective killing of target cells in culture. It is also reported that the anti-B4-DC1 conjugate showed antitumor efficacy in an aggressive metastatic human B-cell lymphoma survival model in SCID mice and completely cured animals hearing large tumors (PMID: 7545085). Anti-B4 when conjugated with blocked ricin increased the antibody induced cell calcium mobilization and CD19 internalization. Modulation of CD19 induced by anti-B4 or anti-B4–bR was evaluated by indirect immunofluoresecence and flow cytometry (PMID: 9310487). Anti-B4-blocked ricin (anti-B4-bR) recognizes CD19-positive cells, which includes most B-cell non-Hodgkin’s lymphomas (NHLs). Phase II clinical studies of anti-B4-bR suggested that it does not actively penetrate in certain sites of the disease and is not an active agent in relapsed NHLs (PMID: 9829722) |
| Brand | Vector Labs |
|---|---|
| UNSPSC | 12161500 |