RayBio® Human Phosphotyrosine STAT4 ELISA Kit. This assay semi-quantitatively measures phosphotyrosine STAT4 in lysate samples.
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Product Description
Specifications
| Size | 1 Plate Kit, 2 Plate Kit, 5 Plate Kit |
| Estimated Lead Time | 1-2 business days |
| Species | Human |
| Specificity | This ELISA kit recognizes human VEGFR2 phosphotyrosine. |
| Compatible Sample Types | Tissue Lysates, Cell Lysates |
| Accession Number | Q14765 |
| Gene Id | 6775 |
| Gene Symbols | STAT4 |
| Protein Name / Synonyms | Signal transducer and activator of transcription 4 |
| Quantitative/Semi-Quantitative | Semi-Quantitative |
| Solid Support | 96-well Microplate |
| Design Principle | Sandwich-based |
| Method Of Detection | Colorimetric |
| Research Area | Cancer, Post-Translational Modifications, Inflammation, Phosphorylation, JAK/STAT Signaling, Autoimmune Disease |
| Shipping Type | Blue ice |
| Storage | -20°C |
Product Features
- Rapidly measure phosphorylated protein in lysates
- Screen numerous different cell lysates without performing a Western Blot analysis
- Minimal hands-on time, convenient, and non-radioactive material
Application Notes
Kit Components
- Pre-Coated 96-well Strip Microplate
- Wash Buffer
- Biotinylated Anti-Phosphotyrosine Antibody
- Stop Solution
- Assay Diluent(s)
- Positive Control Sample
- Lysis Buffer
- Streptavidin-Conjugated HRP
- TMB One-Step Substrate
Other Materials Required
- Distilled or deionized water
- 100 ml and 1 liter graduated cylinders
- Tubes to prepare sample dilutions
- Protease and Phosphatase inhibitors
- Precision pipettes to deliver 2 µl to 1 ml volumes
- Adjustable 1-25 ml pipettes for reagent preparation
- Benchtop rocker or shaker
- Microplate reader capable of measuring absorbance at 450 nm
Protocol Outline
- Prepare all reagents and samples as instructed in the manual.
- Add 100 µl of sample or positive control to each well.
- Incubate 2.5 h at RT or O/N at 4 °C.
- Add 100 µl of prepared primary antibody to each well.
- Incubate 1 h at RT.
- Add 100 µl of prepared 1X HRP-Streptavidin to each well.
- Incubate 1 h at RT.
- Add 100 µl of TMB One-Step Substrate Reagent to each well.
- Incubate 30 min at RT.
- Add 50 µl of Stop Solution to each well.
- Read at 450 nm immediately.
Typical Data
Positive Control
HeLa cells were treated with Pervanadate at 37°C for 10 min. Cells were solubilzed at 4 x 107 cells/ml in lysis buffer. Serial dilutions of lysates were analyzed in this ELISA (see Reagent Preparation step 4).
Pervanadate Stimulation of HeLa Cell Line
HeLa cells were untreated or treated with Pervanadate for 10 min at 37°C. Cell lysates were analyzed using this phosphoELISA:
Storage/Stability
Upon receipt, the kit should be stored at –20°C. Please use within 6 months from the date of shipment.