| Field | Specification |
|---|---|
| Mfr No | |
| Assay Time | |
| Detection Range | |
| Gene ID | |
| Product Type | |
| Reactivity | |
| Sample Type(s) | Tissue Homogenates, Cell Lysates, Other Biological Fluids |
| Sensitivity | |
| Storage | |
| UniProt # |
Assay Principle
HSP40 (STJE0009541) is a biomarker protein expressed in human tissues and biological fluids. Dysregulation of STJE0009541 has been implicated in cellular signaling and fundamental cell biology, making it a relevant biomarker for investigational studies.
Quantitative measurement of STJE0009541 enables researchers to characterize its abundance in Tissue Homogenate, Cell Lysate and correlate levels with experimental conditions. Studies investigating STJE0009541 have contributed to the understanding of protein quality control, disease pathogenesis, and therapeutic target validation.
This sandwich ELISA kit provides a validated, reproducible format for STJE0009541 quantification across a defined standard curve range of 0.156-10ng/mL. The assay supports experimental workflows in Cell Biology research.
Kit Components
Each kit contains sufficient reagents for one 96-well plate (approximately 40 samples in duplicate with standard curve):
Pre-coated 96-well microplate (capture antibody), HRP-conjugated detection antibody, recombinant standard protein, sample/standard diluent, concentrated wash buffer, TMB substrate solution, stop solution, and product manual.
Validated Lot Colorimetric ReadoutPerformance Data
| Assay Type | Sandwich ELISA |
|---|---|
| Detection Range | 0.156-10ng/mL |
| Sensitivity (LLOD) | 0.043ng/mL |
| Validated Sample Types | Tissue Homogenate, Cell Lysate |
| Total Assay Time | 4.5 hours |
| Detection Method | Colorimetric (450 nm / 540–570 nm reference) |
| Plate Format | 96-well microplate |
| Reactivity | Human |
| UniProt Accession | P25685 |
| NCBI Gene ID | 3337 |
| Storage | Store the unopened kit in the fridge at 2-8°C for up to 6 months. Once opened store individual kit contents according to components table provided with the kit |
Assay Procedure Summary
Add samples and standards to pre-coated capture antibody wells and incubate. Wash, add HRP-conjugated detection antibody, and incubate. Wash again, add TMB substrate, and stop the reaction. Read absorbance at 450 nm (reference 540–570 nm). Interpolate sample concentrations from the standard curve using a 4-parameter logistic (4-PL) fit. Total protocol time: approximately 4.5 hours.
Pre-warm all kit components to room temperature (18–25 °C) for 30 minutes before starting. Run all samples in duplicate. Centrifuge samples at ≥1,000 × g before use to remove particulates.
Safety & Intended Use
Intended UseResearch Use Only (RUO)VendorSt John's Laboratory LtdCatalog No.STJE0009541SpeciesHumanUniProtP25685
This kit is validated for tissue homogenates and cell lysates. Centrifuge samples at ≥1,000 × g for 15 min to remove particulates. Avoid hemolyzed, lipemic, or heat-inactivated samples. Pre-dilute samples within the linear range before committing full plates.
Minimum detectable concentration: 0.043ng/mL. Quantitative standard curve range: 0.156-10ng/mL. Samples above the upper limit must be diluted; near-lower-limit samples require duplicate measurement.
Total protocol time is approximately 4.5 hours of hands-on and incubation time. Pre-warm all reagents and prepare dilution series in advance. Set up a timer for each incubation step to maintain consistent timing across plates.
A standard microplate spectrophotometer set to 450 nm (reference: 540–570 nm) is required. An automated plate washer reduces wash-step variability. Calibrate and warm up your reader before measuring. Blank using the zero-standard or buffer-only well before constructing the standard curve.
Recommended storage: Store the unopened kit in the fridge at 2-8°C for up to 6 months. Once opened store individual kit contents according to components table provided with the kit.. Reconstituted standard is stable at 4 °C for ≤1 week; prepare fresh for critical experiments.
Looking for a custom format, bulk quantity, or specialized formulation? We offer flexible sourcing options. Contact us to discuss your specific requirements.
