WB
Western blot analysis using CD19 antibody against HepG2 (1), PC-3 (2), SK-OV-3 (3), T24 (4) cell lysate.12% SDS-PAGE gel.Sample loading: 20μg /lane. Transfer the proteins onto a PVDF membrane (OM790003), and block it with TBST (OM750016) plus skimmed milk powder for one hour. Dilute the primary antibody with the antibody diluent (OM750012) at a ratio of 1:1000, and incubate it overnight at 4°C. Wash the membrane three times with TBST (OM750016), 5 minutes each time. At room temperature, dilute the secondary antibody, Goat Anti-Rabbit IgG(H&L)-HRP (OM643487), at a ratio of 1:20000 and incubate for one hour. Wash the membrane three times with TBST (OM750016) again, 5 minutes each time. Use ECL (OM625701) for luminescence.staining time: 60S.IHC
Immunohistochemical analysis of paraffin-embedded lung cancer tissues using CD19 antibody with DAB staining.Pre-treat the sections with heat-mediated antigen retrieval using sodium citrate buffer (pH 6.0) (OM750020) for 2 minutes. Wash the sections with ddH₂O and PBS (OM750003). Block the tissue with 10% non-immune goat serum(OM760028) at room temperature for 30 minutes. Incubate the tissue with the primary antibody diluted at a ratio of 1:1500 at 4°C overnight. At room temperature, dilute the secondary antibody, Goat Anti-Rabbit IgG(H&L)-HRP (OM643487), at a ratio of 1:200 and incubate for one hour. Use DAB(OM760029)as the chromogenic agent. Counterstain the tissue with hematoxylin, and mount the tissue sections with neutral gum.ICC/IF
Immunofluorescence analysis of A549 cells using CD19 antibody (green). Blue: DAPI fluorescent DNA dye. Red: Actin filaments have been labeled with Omnimabs® 594-Phalloidin.Cells are fixed in 4% paraformaldehyde at room temperature for 20 minutes. Then, they are permeabilized with a PBS (OM750003) solution containing 0.1% Triton X-100(OM750021) at room temperature for 15 minutes. Subsequently, the cells are blocked with 10% non - immune goat serum(OM760028) at room temperature for 1 hour.The cells are incubated overnight at 4°C with the primary antibody diluted 1:100 in PBS. The secondary antibody, Omnimabs® 488 Goat Ant-Rabbit IgG(H&L) (Green,OM643486), is diluted at a ratio of 1:400 and incubated with the cells for 1 hour.Nuclear DNA is labeled with DAPI (Blue,OM643160). F-actin is stained with Omnimabs® 594-Phalloidin (Red,OM750007) diluted 1:100 for 30 minutes.| Product Name | Anti-CD19 antibody |
|---|---|
| Antibody Type | Primary Antibodies |
| Immunogen | Polypeptide |
| Clonality | polyclonal |
|---|---|
| Isotype | IgG |
| Host Species | Rabbit |
| Tested Applications | ELISAICC/IFIHCWB |
| WB:1:200-1:2000 IHC:1:200-1:1000 ICC/IF:1:100-1:500 |
|
| Species Reactivity | HumanMouseRat |
| Concentration | 1mg/ml |
| Purification | Protein A |
| Gene Symbol | CD19 |
|---|---|
| Gene Synonyms | B4 CVID3 |
| Gene Full Name | CD19 molecule |
| Gene Summary | This gene encodes a member of the immunoglobulin gene superfamily. Expression of this cell surface protein is restricted to B cell lymphocytes. This protein is a reliable marker for pre-B cells but its expression diminishes during terminal B cell differentiation in antibody secreting plasma cells. The protein has two N-terminal extracellular Ig-like domains separated by a non-Ig-like domain, a hydrophobic transmembrane domain, and a large C-terminal cytoplasmic domain. This protein forms a complex with several membrane proteins including complement receptor type 2 (CD21) and tetraspanin (CD81) and this complex reduces the threshold for antigen-initiated B cell activation. Activation of this B-cell antigen receptor complex activates the phosphatidylinositol 3-kinase signalling pathway and the subsequent release of intracellular stores of calcium ions. This protein is a target of chimeric antigen receptor (CAR) T-cells used in the treatment of lymphoblastic leukemia. Mutations in this gene are associated with the disease common variable immunodeficiency 3 (CVID3) which results in a failure of B-cell differentiation and impaired secretion of immunoglobulins. CVID3 is characterized by hypogammaglobulinemia, an inability to mount an antibody response to antigen, and recurrent bacterial infections. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2020] |
| Molecular Weight(MW) | 61 kDa |
| Source | Rabbit |
| Cellular Localization | Membrane |
WB
Western blot analysis using CD19 antibody against HepG2 (1), PC-3 (2), SK-OV-3 (3), T24 (4) cell lysate.12% SDS-PAGE gel.Sample loading: 20μg /lane. Transfer the proteins onto a PVDF membrane (OM790003), and block it with TBST (OM750016) plus skimmed milk powder for one hour. Dilute the primary antibody with the antibody diluent (OM750012) at a ratio of 1:1000, and incubate it overnight at 4°C. Wash the membrane three times with TBST (OM750016), 5 minutes each time. At room temperature, dilute the secondary antibody, Goat Anti-Rabbit IgG(H&L)-HRP (OM643487), at a ratio of 1:20000 and incubate for one hour. Wash the membrane three times with TBST (OM750016) again, 5 minutes each time. Use ECL (OM625701) for luminescence.staining time: 60S.
IHC
Immunohistochemical analysis of paraffin-embedded lung cancer tissues using CD19 antibody with DAB staining.Pre-treat the sections with heat-mediated antigen retrieval using sodium citrate buffer (pH 6.0) (OM750020) for 2 minutes. Wash the sections with ddH₂O and PBS (OM750003). Block the tissue with 10% non-immune goat serum(OM760028) at room temperature for 30 minutes. Incubate the tissue with the primary antibody diluted at a ratio of 1:1500 at 4°C overnight. At room temperature, dilute the secondary antibody, Goat Anti-Rabbit IgG(H&L)-HRP (OM643487), at a ratio of 1:200 and incubate for one hour. Use DAB(OM760029)as the chromogenic agent. Counterstain the tissue with hematoxylin, and mount the tissue sections with neutral gum.
ICC/IF
Immunofluorescence analysis of A549 cells using CD19 antibody (green). Blue: DAPI fluorescent DNA dye. Red: Actin filaments have been labeled with Omnimabs® 594-Phalloidin.Cells are fixed in 4% paraformaldehyde at room temperature for 20 minutes. Then, they are permeabilized with a PBS (OM750003) solution containing 0.1% Triton X-100(OM750021) at room temperature for 15 minutes. Subsequently, the cells are blocked with 10% non - immune goat serum(OM760028) at room temperature for 1 hour.The cells are incubated overnight at 4°C with the primary antibody diluted 1:100 in PBS. The secondary antibody, Omnimabs® 488 Goat Ant-Rabbit IgG(H&L) (Green,OM643486), is diluted at a ratio of 1:400 and incubated with the cells for 1 hour.Nuclear DNA is labeled with DAPI (Blue,OM643160). F-actin is stained with Omnimabs® 594-Phalloidin (Red,OM750007) diluted 1:100 for 30 minutes.| Application Notes | WB:1:200-1:2000 IHC:1:200-1:1000 ICC/IF:1:100-1:500 |
|---|
| Form | Liquid |
|---|---|
| Storage Instructions | Shipped at 4°C. Store at +4°C short term (1-2 weeks). Store at -20°C long term. Avoid freeze / thaw cycle. |
| Storage Buffer | Purified antibody in PBS with 0.05% sodium azide. |
Data sheet for OM641833