Description
HRS (Phospho-Tyr334)Colorimetric Cell-Based ELISA Kit
The HRS (Phospho-Tyr334) Colorimetric Cell-Based ELISA Kit is a cutting-edge tool for researchers looking to accurately measure levels of phosphorylated tyrosine 334 in cellular samples. This kit provides high sensitivity and specificity, ensuring precise and reliable results for a variety of research applications.Phosphorylated tyrosine 334 is a key signaling molecule involved in cell growth, differentiation, and survival. Dysregulation of this phosphorylation event has been linked to numerous diseases, including cancer, inflammation, and autoimmune disorders.
By utilizing this ELISA kit, researchers can better understand the role of phosphorylated tyrosine 334 in disease pathogenesis and potentially identify new therapeutic targets.Overall, the HRS (Phospho-Tyr334) Colorimetric Cell-Based ELISA Kit offers researchers a powerful tool for studying cellular signaling pathways and advancing our understanding of disease mechanisms.
| Product Name: | HRS (Phospho-Tyr334)Colorimetric Cell-Based ELISA Kit |
| Product Code: | CBCAB01452 |
| ELISA Type: | Cell-Based |
| Target: | HRS (Phospho-Tyr334) |
| Reactivity: | Human, Mouse, Rat |
| Dynamic Range: | > 5000 Cells |
| Detection Method: | Colorimetric 450 nm |
| Format: | 2 x 96-Well Microplates |
The HRS (Phospho-Tyr334) Colorimetric Cell-Based ELISA Kit is a convenient, lysate-free, high throughput and sensitive assay kit that can detect HRS protein phosphorylation and expression profile in cells. The kit can be used for measuring the relative amounts of phosphorylated HRS in cultured cells as well as screening for the effects that various treatments, inhibitors (ie. siRNA or chemicals), or activators have on HRS phosphorylation.
Qualitative determination of HRS (Phospho-Tyr334) concentration is achieved by an indirect ELISA format. In essence, HRS (Phospho-Tyr334) is captured by HRS (Phospho-Tyr334)-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: 9146, UniProt ID: O14964, OMIM: 604375, Unigene: Hs.514590 |
| Gene Symbol: | HGS |
| Sub Type: | Phospho |
| UniProt Protein Function: | Hrs: a zinc finger protein which is rapidly tyrosine phosphorylated in cells stimulated with various growth factors. Hrs mRNA is expressed in all the human adult and fetal tissues tested. |
| UniProt Protein Details: | Protein type:Adaptor/scaffold; Motility/polarity/chemotaxis Chromosomal Location of Human Ortholog: 17q25 Cellular Component: cytoplasm; cytosol; early endosome; early endosome membrane; endosome; intracellular membrane-bound organelle Molecular Function:metal ion binding; protein binding; protein domain specific binding Biological Process: autophagy; endosome transport; epidermal growth factor receptor signaling pathway; membrane invagination; negative regulation of cell proliferation; negative regulation of epidermal growth factor receptor signaling pathway; negative regulation of JAK-STAT cascade; post-Golgi vesicle-mediated transport; protein targeting to lysosome; regulation of MAP kinase activity; regulation of protein catabolic process; signal transduction |
| NCBI Summary: | The protein encoded by this gene regulates endosomal sorting and plays a critical role in the recycling and degradation of membrane receptors. The encoded protein sorts monoubiquitinated membrane proteins into the multivesicular body, targeting these proteins for lysosome-dependent degradation. [provided by RefSeq, Dec 2010] |
| UniProt Code: | O14964 |
| NCBI GenInfo Identifier: | 71152119 |
| NCBI Gene ID: | 9146 |
| NCBI Accession: | O14964.1 |
| UniProt Secondary Accession: | O14964,Q9NR36, |
| UniProt Related Accession: | O14964 |
| Molecular Weight: | 76,376 Da |
| NCBI Full Name: | Hepatocyte growth factor-regulated tyrosine kinase substrate |
| NCBI Synonym Full Names: | hepatocyte growth factor-regulated tyrosine kinase substrate |
| NCBI Official Symbol: | HGS |
| NCBI Official Synonym Symbols: | HRS |
| NCBI Protein Information: | hepatocyte growth factor-regulated tyrosine kinase substrate |
| UniProt Protein Name: | Hepatocyte growth factor-regulated tyrosine kinase substrate |
| UniProt Synonym Protein Names: | Hrs |
| Protein Family: | Hepatocyte growth factor-regulated tyrosine kinase substrate |
| UniProt Gene Name: | HGS |
| UniProt Entry Name: | HGS_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-HRS (Phospho-Tyr334) Antibody, Anti-HRS 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.)
