| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Multiubiquitin chain-binding protein; Antisecretory factor 1(AF;ASF); 26S proteasome regulatory subunit RPN10; 26S proteasome regulatory subunit S5A |
| Detection Range | |
| Gene ID | |
| Product Type | |
| Sample Type(s) | serum, plasma, tissue homogenates or other biological fluids. |
| Sensitivity | |
| Species | |
| UniProt # |
Assay Principle
Proteasome 26S Subunit, Non ATPase 4 (PSMD4) is a biomarker protein expressed in human tissues and biological fluids. It is also referred to as Multiubiquitin chain-binding protein; Antisecretory factor 1(AF; ASF). Dysregulation of PSMD4 has been implicated in metabolic regulation and endocrine signaling, making it a relevant biomarker for investigational studies.
Quantitative measurement of PSMD4 enables researchers to characterize its abundance in Serum, Plasma, Tissue Homogenate and correlate levels with experimental conditions. Studies investigating PSMD4 have contributed to the understanding of diabetes & insulin resistance, disease pathogenesis, and therapeutic target validation.
This sandwich ELISA kit provides a validated, reproducible format for PSMD4 quantification across a defined standard curve range of 78-5000pg/mL. The assay supports experimental workflows in Metabolic & Endocrine Research 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 | 78-5000pg/mL |
| Sensitivity (LLOD) | 29.8pg/mL |
| Validated Sample Types | Serum, Plasma, Tissue Homogenate |
| Detection Method | Colorimetric (450 nm / 540–570 nm reference) |
| Plate Format | 96-well microplate |
| UniProt Accession | P55036 |
| NCBI Gene ID | 571 |
| Shelf Life | Traditional: 12 months | Ready-to-use: 16 months |
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.
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)VendorDLdevelopCatalog No.DL-PSMD4-Hu, DLR-PSMD4-HuSpeciesHumanUniProtP55036
This kit is validated for serum and plasma. 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: 29.8pg/mL. Quantitative standard curve range: 78-5000pg/mL. Samples above the upper limit must be diluted; near-lower-limit samples require duplicate measurement.
A typical sandwich ELISA protocol for this kit requires 3.5–5 hours. Pre-warm reagents to room temperature (18–25 °C) for at least 30 minutes before starting and prepare standard dilutions while the capture plate equilibrates.
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.
Store the unopened kit at 2–8 °C until the expiry date. Shelf life: Traditional: 12 months | Ready-to-use: 16 months from date of manufacture. 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.
