Description
Rabphilin 3A (Phospho-Ser237)Colorimetric Cell-Based ELISA Kit
The Rabphilin-3A Phospho-Ser237 Colorimetric Cell-Based ELISA Kit is a cutting-edge tool for the precise measurement of phosphorylated Rabphilin-3A levels in cell lysates and tissue samples. This kit offers exceptional sensitivity and specificity, ensuring accurate and dependable results for a variety of research applications.Rabphilin-3A is a crucial regulator of membrane trafficking and neurotransmitter release, playing a key role in synaptic transmission and neuronal function. Dysregulation of Rabphilin-3A phosphorylation has been implicated in neurological disorders such as Alzheimer's disease and Parkinson's disease, making it a valuable target for understanding disease mechanisms and developing potential therapeutic interventions.
With its user-friendly protocol and robust performance, the Rabphilin-3A Phospho-Ser237 Colorimetric Cell-Based ELISA Kit is an essential tool for researchers studying intracellular signaling pathways, synaptic plasticity, and neurodegenerative diseases. Unlock the potential of your research with this innovative and reliable assay kit.
| Product Name: | Rabphilin 3A (Phospho-Ser237)Colorimetric Cell-Based ELISA Kit |
| Product Code: | CBCAB01314 |
| ELISA Type: | Cell-Based |
| Target: | Rabphilin 3A (Phospho-Ser237) |
| Reactivity: | Human, Mouse, Rat |
| Dynamic Range: | > 5000 Cells |
| Detection Method: | Colorimetric 450 nm |
| Format: | 2 x 96-Well Microplates |
The Rabphilin 3A (Phospho-Ser237) Colorimetric Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can detect Rabphilin 3A protein phosphorylation and expression profile in cells. The kit can be used for measuring the relative amounts of phosphorylated Rabphilin 3A in cultured cells as well as screening for the effects that various treatments, inhibitors (ie. siRNA or chemicals), or activators have on Rabphilin 3A phosphorylation.
Qualitative determination of Rabphilin 3A (Phospho-Ser237) concentration is achieved by an indirect ELISA format. In essence, Rabphilin 3A (Phospho-Ser237) is captured by Rabphilin 3A (Phospho-Ser237)-specific primary (1ø) antibodies while the HRP-conjugated secondary (2ø) antibodies bind the Fc region of the 1ø antibody. Through this binding, the HRP enzyme conjugated to the 2ø antibody can catalyze a colorimetric reaction upon substrate addition. Due to the qualitative nature of the Cell-Based ELISA, multiple normalization methods are needed:
| 1. | A monoclonal antibody specific for human GAPDH is included to serve as an internal positive control in normalizing the target absorbance values. |
| 2. | Following the colorimetric measurement of HRP activity via substrate addition, the Crystal Violet whole-cell staining method may be used to determine cell density. After staining, the results can be analysed by normalizing the absorbance values to cell amounts, by which the plating difference can be adjusted. |
| Database Information: | Gene ID: 22895, UniProt ID: Q9Y2J0, OMIM: None, Unigene: Hs.21239 |
| Gene Symbol: | RPH3A |
| Sub Type: | Phospho |
| UniProt Protein Function: | rabphilin 3A: Protein transport. Probably involved with Ras-related protein Rab-3A in synaptic vesicle traffic and/or synaptic vesicle fusion. Could play a role in neurotransmitter release by regulating membrane flow in the nerve terminal. 2 isoforms of the human protein are produced by alternative splicing. |
| UniProt Protein Details: | Protein type:Vesicle Chromosomal Location of Human Ortholog: 12q24.13 Cellular Component: Golgi apparatus; synaptic vesicle; neuron projection; protein complex; extrinsic to membrane; synaptic vesicle membrane; synapse; cell junction; cytosol; secretory granule Molecular Function:phosphatidylinositol-4,5-bisphosphate binding; selenium binding; protein binding; zinc ion binding; calcium-dependent phospholipid binding; transporter activity; protein complex binding; calcium ion binding; phosphate binding; Rab GTPase binding Biological Process: intracellular protein transport |
| NCBI Summary: | Exocytosis of neurotransmitters and hormones is fundamental to synaptic neurotransmission and cell-cell communication. RAB3A (MIM 179390) is a small G protein that is thought to act at late stages of exocytosis, and RPH3A is a RAB3A effector (Lin et al., 2007 [PubMed 17149709]).[supplied by OMIM, Jul 2008] |
| UniProt Code: | Q9Y2J0 |
| NCBI GenInfo Identifier: | 13878745 |
| NCBI Gene ID: | 22895 |
| NCBI Accession: | Q9Y2J0.1 |
| UniProt Secondary Accession: | Q9Y2J0,Q96AE0, B7Z3C3, |
| UniProt Related Accession: | Q9Y2J0 |
| Molecular Weight: | 694 |
| NCBI Full Name: | Rabphilin-3A |
| NCBI Synonym Full Names: | rabphilin 3A |
| NCBI Official Symbol: | RPH3AÂ Â |
| NCBI Protein Information: | rabphilin-3A; exophilin-1; rabphilin 3A homolog |
| UniProt Protein Name: | Rabphilin-3A |
| UniProt Synonym Protein Names: | Exophilin-1 |
| Protein Family: | Rabphilin |
| UniProt Gene Name: | RPH3AÂ Â |
| UniProt Entry Name: | RP3A_HUMAN |
| Component | Quantity |
| 96-Well Cell Culture Clear-Bottom Microplate | 2 plates |
| 10X TBS | 24 mL |
| Quenching Buffer | 24 mL |
| Blocking Buffer | 50 mL |
| 15X Wash Buffer | 50 mL |
| Primary Antibody Diluent | 12 mL |
| 100x Anti-Phospho Target Antibody | 60 µL |
| 100x Anti-Target Antibody | 60 µL |
| Anti-GAPDH Antibody | 60 µL |
| HRP-Conjugated Anti-Rabbit IgG Antibody | 12 mL |
| HRP-Conjugated Anti-Mouse IgG Antibody | 12 mL |
| SDS Solution | 12 mL |
| Stop Solution | 24 mL |
| Ready-to-Use Substrate | 12 mL |
| Crystal Violet Solution | 12 mL |
| Adhesive Plate Seals | 2 seals |
The following materials and/or equipment are NOT provided in this kit but are necessary to successfully conduct the experiment:
- Microplate reader able to measure absorbance at 450 nm and/or 595 nm for Crystal Violet Cell Staining (Optional)
- Micropipettes with capability of measuring volumes ranging from 1 µL to 1 ml
- 37% formaldehyde (Sigma Cat# F-8775) or formaldehyde from other sources
- Squirt bottle, manifold dispenser, multichannel pipette reservoir or automated microplate washer
- Graph paper or computer software capable of generating or displaying logarithmic functions
- Absorbent papers or vacuum aspirator
- Test tubes or microfuge tubes capable of storing ≥1 ml
- Poly-L-Lysine (Sigma Cat# P4832 for suspension cells)
- Orbital shaker (optional)
- Deionized or sterile water
*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
| Step | Procedure |
| 1. | Seed 200 µL of 20,000 adherent cells in culture medium in each well of a 96-well plate. The plates included in the kit are sterile and treated for cell culture. For suspension cells and loosely attached cells, coat the plates with 100 µL of 10 µg/ml Poly-L-Lysine (not included) to each well of a 96-well plate for 30 minutes at 37 °C prior to adding cells. |
| 2. | Incubate the cells for overnight at 37 °C, 5% CO2. |
| 3. | Treat the cells as desired. |
| 4. | Remove the cell culture medium and rinse with 200 µL of 1x TBS, twice. |
| 5. | Fix the cells by incubating with 100 µL of Fixing Solution for 20 minutes at room temperature. The 4% formaldehyde is used for adherent cells and 8% formaldehyde is used for suspension cells and loosely attached cells. |
| 6. | Remove the Fixing Solution and wash the plate 3 times with 200 µL 1x Wash Buffer for five minutes each time with gentle shaking on the orbital shaker. The plate can be stored at 4 °C for a week. |
| 7. | Add 100 µL of Quenching Buffer and incubate for 20 minutes at room temperature. |
| 8. | Wash the plate 3 times with 1x Wash Buffer for 5 minutes each time. |
| 9. | Add 200 µL of Blocking Buffer and incubate for 1 hour at room temperature. |
| 10. | Wash 3 times with 200 µL of 1x Wash Buffer for 5 minutes each time. |
| 11. | Add 50 µL of 1x primary antibodies Anti-Rabphilin 3A (Phospho-Ser237) Antibody, Anti-Rabphilin 3A Antibody and/or Anti-GAPDH Antibody) to the corresponding wells, cover with Parafilm and incubate for 16 hours (overnight) at 4 °C. If the target expression is known to be high, incubate for 2 hours at room temperature. |
| 12. | Wash 3 times with 200 µL of 1x Wash Buffer for 5 minutes each time. |
| 13. | Add 50 µL of 1x secondary antibodies (HRP-Conjugated AntiRabbit IgG Antibody or HRP-Conjugated Anti-Mouse IgG Antibody) to corresponding wells and incubate for 1.5 hours at room temperature. |
| 14. | Wash 3 times with 200 µL of 1x Wash Buffer for 5 minutes each time. |
| 15. | Add 50 µL of Ready-to-Use Substrate to each well and incubate for 30 minutes at room temperature in the dark. |
| 16. | Add 50 µL of Stop Solution to each well and read OD at 450 nm immediately using the microplate reader. |
(Additional Crystal Violet staining may be performed if desired – details of this may be found in the kit technical manual.)
