ELISA Kit for Factor Related Apoptosis (FAS)

CD95; ALPS1A; ALPS1-A; APO1; APT1; FAS1; FASTM; TNFRSF6; Fas Receptor; TNF Receptor Superfamily Member 6; Tumor Necrosis Factor Receptor Superfamily Member 6


This assay has high sensitivity and excellent specificity for detection of Factor Related Apoptosis (FAS).
No significant cross-reactivity or interference between Factor Related Apoptosis (FAS) and analogues was observed.


Matrices listed below were spiked with certain level of recombinant Factor Related Apoptosis (FAS) and the recovery rates were calculated by comparing the measured value to the expected amount of Factor Related Apoptosis (FAS) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 79-102 89
EDTA plasma(n=5) 89-101 96
heparin plasma(n=5) 86-95 90


Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Factor Related Apoptosis (FAS) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Factor Related Apoptosis (FAS) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%


The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Factor Related Apoptosis (FAS) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
serum(n=5) 80-95% 82-103% 94-102% 96-105%
EDTA plasma(n=5) 78-91% 86-101% 78-103% 85-98%
heparin plasma(n=5) 92-99% 99-105% 87-97% 84-93%


The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Reagents Quantity Reagents Quantity
Pre-coated, ready to use 96-well strip plate 1 Plate sealer for 96 wells 4
Standard 2 Standard Diluent 1×20mL
Detection Reagent A 1×120µL Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
TMB Substrate 1×9mL Stop Solution 1×6mL
Wash Buffer (30 × concentrate) 1×20mL Instruction manual 1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
6. Aspirate and wash 5 times;
7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C;
8. Add 50µL Stop Solution. Read at 450nm immediately.



Magazine Citations
European Journal of Pharmacology Montelukast abrogates rhabdomyolysis-induced acute renal failure via rectifying detrimental changes in antioxidant profile and systemic cytokines and apoptotic factors production ScienceDirect: S0014299912002580
J Sci Food Agric. Beneficial effects of Allium sativum L. stem extract on lipid metabolism and antioxidant status in obese mice fed a high fat diet Wiley: Source
Tumor Biology The diplotype Fas? 1377A/? 670G as a genetic marker to predict a lower risk of breast cancer in Chinese women Springer:Source
Naunyn Schmiedebergs Arch Pharmacol The multi-kinase inhibitor pazopanib targets hepatic stellate cell activation and apoptosis alleviating progression of liver fibrosis PubMed: 26269412
Pharmacological Reports The heat shock protein 90 inhibitor, 18-AAG, attenuates thioacetamide induced liver fibrosis in mice Science: Article
PLoS One Aronia melanocarpa Extract Ameliorates Hepatic Lipid Metabolism through PPARγ2 Downregulation 10.1371
Molecular Diagnosis & Therapy The Utility of Biomarkers in Osteoporosis Management pubmed:28271451
PLoS One Aronia melanocarpa Extract Ameliorates Hepatic Lipid Metabolism through PPARγ2 Downregulation pubmed:28081181
Journal of Microbiology, Immunology and Infection Identification of a panel of serum protein markers in early stage of sepsis and its validation in a cohort of patients pubmed:28655573
Journal of Functional Foods Polysaccharides from Cyclocarya paliurus: Chemical composition and lipid-lowering effect on rats challenged with high-fat diet 10.1016/j.jff.2017.07.020
Toxics Zinc Oxide Nanoparticles Induced Oxidative DNA Damage, Inflammation and Apoptosis in Rat's Brain after Oral Exposure Pubmed:29861430
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