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Product Info Summary
| SKU: | EK0335 |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Human |
| Application: | ELISA |
| Sample Types: | cell culture supernatants, serum and plasma (heparin, EDTA, citrate). |
Product info
Product Name
Human FAS/Cd95 ELISA Kit PicoKine®
SKU/Catalog Number
EK0335
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human FAS/Cd95 ELISA Kit PicoKine® (96 Tests). Quantitate Human FAS in cell culture supernatants, serum and plasma (heparin, EDTA, citrate). Sensitivity: 3 pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.
Storage & Handling
Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)
Cite This Product
Human FAS/Cd95 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0335)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: R17-N173
Sensitivity
<3 pg/ml
Assay Range
31.2 pg/ml - 2,000 pg/ml
Standard Dilution Instructions
See datasheet of EK0335 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK0335 is reactive to FAS in Human samples
Validated Sample Types
cell culture supernatants, serum and plasma (heparin, EDTA, citrate).
Application Guarantee
EK0335 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of FAS
Fas, also known as APO-1, CD95 and TNFRSF6, is a member of the nerve growth factor (NGF)/tumour necrosis factor (TNF) receptor superfamily and mediates apoptosis. The nucleotide sequence of the cDNAs reveales that the molecule coding for the Fas antigen determinant is a 319 amino acid polypeptide with a single transmembrane domain. The extracellular domain is rich in cysteine residue, and shows a similarity to that of human tumor necrosis factor receptors, human nerve growth factor receptor, and human B cell antigen CD40. The APO-1 antigen as defined by the mouse monoclonal antibody anti-APO-1 is previously found to be expressed on the cell surface of activated human T and B lymphocytes and a variety of malignant human lymphoid cell lines. The APO-1 antigen is found to be a membrane glycoprotein of 48-kDa. Fas antigen is expressed and functional on papillary thyroid cancer cells and this may have potential therapeutic significance. Fas can play a role as an inducer of both neurite growth in vitro and accelerates recovery after nerve injury in vivo. The FAS and FASL triggered apoptosis pathway plays an important role in human carcinogenesis.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK0335-CAP | Anti-Human FAS Pre-coated 96-well strip microplate | 1 |
| EK0335-ST | Human FAS Standard | 2 vials, 10 ng/tube |
| EK0335-DA | Human FAS Biotinylated antibody (100x) | 100ul |
| AR1103 | Avidin-Biotin-Peroxidase Complex (100x) | 100ul |
| AR1106-1 | Sample Diluent | 30ml |
| AR1106-2 | Antibody Diluent | 12ml |
| AR1106-3 | Avidin-Biotin-Peroxidase Diluent | 12ml |
| AR1104 | Color Developing Reagent (TMB) | 10ml |
| AR1105 | Stop Solution | 10ml |
| AR1106-5 | Wash Buffer (25x) | 20ml |
| PLA-SEA | Adhesive plate sealers | 4 |
*The kit components are not available for individual purchase.
Materials Required But Not Included In Kit
- Microplate Reader capable of reading absorbance at 450nm.
- Incubator.
- Automated plate washer (optional).
- Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
- Multichannel pipettes are recommended for large amount of samples.
- Deionized or distilled water.
- 500ml graduated cylinders.
- Test tubes for dilution.
Data Examples, Quality Control Data & Sample Dilution
Validation Standard Curve O.D. At 450nm
| Concentration (pg/ml) | 0 | 31.2 | 62.5 | 125 | 250 | 500 | 1000 | 2000 |
| O.D. | 0.020 | 0.077 | 0.112 | 0.201 | 0.322 | 0.514 | 0.839 | 1.821 |
Data Example Images
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Human FAS PicoKine ELISA Kit standard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect FAS, Dilution ratio of 1:1, concentration in serum is around 50 pg/ml..
Some articles we found to cite concentrations of FAS in samples: 25764498, 25541498, 25505993, 18335396 (Pubmed IDs).
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human FAS/Cd95 ELISA Kit PicoKine® within the same batch/lot to ensure the consistency of the kits' performances. ELISA intra assay consistency is measured using wells from the same plate/assay kit. ELISA inter assay consistency is measured using wells from different plates from the same batch production/lot.
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 16 | 16 | 16 | 24 | 24 | 24 |
| Mean (pg/ml) | 68 | 235 | 915 | 63 | 239 | 861 |
| Standard deviation | 3.6 | 14.8 | 44.83 | 3.33 | 18.88 | 54.24 |
| CV (%) | 5.3% | 7.9% | 4.9% | 5.3% | 7.9% | 6.3% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of FAS in ELISA kits from four different production batches/lots.
| Lots | Lot 1 (pg/ml) | Lot 2 (pg/ml) | Lot 3 (pg/ml) | Lot 4 (pg/ml) | Mean (pg/ml) | Standard Deviation | CV (%) |
|---|---|---|---|---|---|---|---|
| Sample 1 | 68 | 60 | 71 | 60 | 64 | 4.86 | 7.5% |
| Sample 2 | 235 | 248 | 233 | 262 | 244 | 11.62 | 4.7% |
| Sample 3 | 915 | 855 | 754 | 803 | 831 | 59.88 | 7.2% |
Protein Target Info & Infographic
Gene/Protein Information For FAS (Source: Uniprot.Org, NCBI)
Gene Name
FAS
Full Name
Tumor necrosis factor receptor superfamily member 6
Weight
37732 MW
Alternative Names
Tumor necrosis factor receptor superfamily member 6;Apo-1 antigen;Apoptosis-mediating surface antigen FAS;FASLG receptor;CD95;FAS;APT1, FAS1, TNFRSF6; FAS ALPS1A, APO-1, APT1, CD951, FASTM, TNFRSF6, FAS Fas cell surface death receptor tumor necrosis factor receptor superfamily member 6|APO-1 cell surface |CD95 |FASLG receptor|Fas (TNF receptor superfamily, member 6)|Fas AMA|TNF receptor superfamily member 6|apoptosis 1|apoptosis signaling receptor FAS|apoptosis-mediating surface FAS|mutant tumor necrosis receptor superfamily member 6|tumor necrosis factor receptor superfamily, member 6
*if product is indicated to react with multiple species, protein info is based on the gene entry specified above in "species".For more info on FAS, check out the FAS Infographic
We have 30,000+ of these available, one for each gene! check them out.
In this infographic you will see the following information for FAS: database IDs, super-family, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact us [email protected].
Specific Publications For Human FAS/Cd95 ELISA Kit PicoKine® (EK0335)
Hello CJ!
EK0335 has been cited in 1 publications:
*The publications in this section are manually curated by our staff scientists. They may differ from Bioz's machine gathered results. Both are accurate. If you find a publication citing this product but is missing from this list, please let us know we will issue you a thank-you coupon.
Liu W, Shan Lp, Dong Xs, Liu Xw, Ma T, Liu Z. World J Gastroenterol. 2013 Jan 28;19(4):492-502. Doi: 10.3748/Wjg.V19.I4.492. Combined Early Fluid Resuscitation And Hydrogen Inhalation Attenuates Lung And Intestine Injury.
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Customer Reviews
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Customer Q&As
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7 Customer Q&As for Human FAS/Cd95 ELISA Kit PicoKine®
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
R. Puri
Verified customer
Asked: 2020-10-18
Answer
A: although the vials are bottled using aseptic techniques, heat-treated vials, and sterile stock solutions, they are not considered or guaranteed to be sterile. If sterile material is required for an experiment, the material can be filtered through a 0.2 micron filter designed for use with biological fluids.
Boster Scientific Support
Answered: 2020-10-18
Question
Q: what is the protocol regarding preparation of cell lysates prepared for use in Picokine® ELISA kits?
M. Bhasin
Verified customer
Asked: 2018-11-29
Answer
A: in those Picokine® ELISAs where cell or tissue lysate is a validated sample type, sample preparation instructions for lysate are present in the product insert. Components in lysate and lysis buffer can effect immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2018-11-29
Question
Q: how to proceed with the analysis of ELISA data? I have obtained FAS level in serum.
Verified Customer
Verified customer
Asked: 2018-11-04
Answer
A: we recommend you this article on ELISA data analysis. bosterbio.com/ELISA-data-analysis-instructions. we also provide a convenient online tool that you can use to analyze ELISA data. bosterbio.com/biology-research-tools/ELISA-data-analysis-online
Boster Scientific Support
Answered: 2018-11-04
Question
Q: What is the optimal O.D. value for FAS ELISA kit? I performed your FAS ELISA on serum samples. For my positive control, I received an O.D. value of 0.826, while my negative control received a value of 0.136. I obtained both of these controls from the ELISA kit, where your kit's typical data shows O.D. values much higher than my positive control and your background is lower. My samples O.D. values are around 0.225 and the highest is only 0.357. can I consider these samples contain FAS even though the O.D. values are not very high?
E. Yang
Verified customer
Asked: 2018-07-09
Answer
A: The absolute O.D. values may change according to incubation time. The more you incubate the higher the O.D. values are going to be. an important assessment should be is whether your sample O.D. values are statistically significantly higher than your blank values. considering your assay, you could extend your development time in the substrate incubation step to obtain higher O.D. values, as long as your negative controls' O.D. values are not increasing faster in relation to your positive controls. typically, a sample with O.D. value 2 standard deviations higher than your negative controls can be considered positive. We calculate the sensitivity of this ELISA kit by changeing cutoff O.D. value, calculated as the average of 20 negative controls plus 2 standard deviations of the 20 negative controls, into a concentration. in other words, when we claim this FAS ELISA kit to have sensitivity of 3pg/ml, that means the minimum amount of FAS that can be declared/interpreted as positive by the above standard is 3pg/ml.
Boster Scientific Support
Answered: 2018-07-09
Question
Q: can I use heparin plasma as samples in Human FAS Picokine® ELISA Kit (Catalog # EK0335)?
M. Jones
Verified customer
Asked: 2018-03-03
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can bind metal ions from the functional domain of FAS causing degradation of its protein structure. FAS may be denatured as a result and may compromise the assay's measurements. The chilating sites could also be too close to the epitopes a must for detection and block the antigen antibody reaction. We have tested the FAS ELISA, treating samples with various anticoagulants and decided that heparin, EDTA or citrate can be used for treatment of blood/plasma samples. Do not use other anticoagulents when collecting samples.
Boster Scientific Support
Answered: 2018-03-03
Question
Q: Can FAS ELISA Kits be used with tissue homogenates (or other non-validated sample types)?
Verified Customer
Verified customer
Asked: 2016-12-07
Answer
A: Unfortunately, Boster Bio has not routinely validated tissue homogenates as a sample type for ELISA kits. This does not mean that ELISA kits are not valid for other sample types than we have tested: it means further investigation is needed. One will need to perform a spike and recovery study to determine if an unvalidated sample type will work with a particular kit. To perform a spike and recovery experiment, one should divide a sample into two aliquots. In one of the aliquots, the user should spike in a known amount of the kit standard. a dilution series is performed comparing the spiked versus the unspiked sample. Generally, samples with expected recovery and linearity between 80-120% are considered acceptable. This method can be used to validate any sample type that has not been assessd by Boster Bio. for a more detailed spike and recovery protocol, please contact technical support.
Note: acceptable ranges should be determined individually by each laboratory. Additionally, technical support can help determine if a buffer component is not compatible with a given ELISA kit. please check the Citations tab on the product webpage for peer-reviewed papers utilizing a wide range of sample types. We also have an innovator's reward program where if the user validates our ELISA kits in applications or samples previously not validated by Boster Bio or other users, and share such information with us by submit a review, we will reward the user's efforts with a free antibody or ELISA kit from our catalog. Biocompare.com will also give $20 Amazon giftcard as an additional reward, if the review is submitted there as well.
Boster Scientific Support
Answered: 2016-12-07
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
D. Mitchell
Verified customer
Asked: 2016-07-27
Answer
A: We have a web based ELISA curve fitting (4pl) and data analysis tool. Please give it a try: bosterbio.com/biology-research-tools/ELISA-data-analysis-online. You can also consult our article on ELISA data analysis: bosterbio.com/ELISA-data-analysis-instructions
Boster Scientific Support
Answered: 2016-07-27
