ICC/IF
Immunofluorescence analysis of U251 cells using Rab3a 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 15 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.IHC
Immunohistochemical analysis of paraffin-embedded Human cervical cancer tissues using Rab3a 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.IHC
Immunohistochemical analysis of paraffin-embedded Human Kidney tissues using Rab3a 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.IHC
Immunohistochemical analysis of paraffin-embedded Human lung cancer tissues using Rab3a 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.IHC
Immunohistochemical analysis of paraffin-embedded Human prostate cancer tissues using Rab3a 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.WB
Western blot analysis using Rab3a antibody against THP-1(1) cell . 15% 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(OM750084) 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 1:15000 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: 120S.ELISA
Coat the plate with immunizing antigen.Blue line： Immune serum; Orange line: Pre-immune serum.| Product Name | Anti-Rab3a antibody |
|---|---|
| Antibody Type | Primary Antibodies |
| Immunogen | Polypeptide |
| Clonality | Polyclonal |
|---|---|
| Isotype | IgG |
| Host Species | Rabbit |
| Tested Applications | ELISAICC/IFIHCWB |
| IHC:200-1:2000 ICC/IF:1:100-1:500 WB:1:1000-1:2000 ELISA:1:1000-1:10000 |
|
| Species Reactivity | HumanMouseRat |
| Concentration | 1mg/ml |
| Purification | Protein A |
| Gene Symbol | RAB3A |
|---|---|
| Gene Synonyms | RAB3 SCA52 |
| Gene Full Name | RAB3A, member RAS oncogene family |
| Gene Summary | Enables GTPase activity and myosin V binding activity. Involved in several processes, including acrosomal vesicle exocytosis; plasma membrane repair; and regulation of plasma membrane repair. Located in perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Jul 2025] |
| Alternative Names | C18A3.6 RAS-associated protein RAB3A Ras-related small GTP binding protein 3A |
| Molecular Weight(MW) | 25kDa(observed：20kDa) |
| Cellular Localization | Cytoplasm, cytosol, Lysosome, Cytoplasmic vesicle, secretory vesicle, Cell projection, axon, Cell membrane, Presynapse, Postsynapse |
| SwissProt ID | P20336 |
|---|
ICC/IF
Immunofluorescence analysis of U251 cells using Rab3a 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 15 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.
IHC
Immunohistochemical analysis of paraffin-embedded Human cervical cancer tissues using Rab3a 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.
IHC
Immunohistochemical analysis of paraffin-embedded Human Kidney tissues using Rab3a 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.
IHC
Immunohistochemical analysis of paraffin-embedded Human lung cancer tissues using Rab3a 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.
IHC
Immunohistochemical analysis of paraffin-embedded Human prostate cancer tissues using Rab3a 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.
WB
Western blot analysis using Rab3a antibody against THP-1(1) cell . 15% 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(OM750084) 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 1:15000 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: 120S.
ELISA
Coat the plate with immunizing antigen.Blue line： Immune serum; Orange line: Pre-immune serum.| Application Notes | IHC:200-1:2000 ICC/IF:1:100-1:500 WB:1:1000-1:2000 ELISA:1:1000-1:10000 |
|---|
| 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% PC300,40% Glycerol. |
