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Product Info Summary
| SKU: | EK1813 |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Human |
| Application: | ELISA |
| Sample Types: | cell culture supernatants, serum and plasma (heparin, EDTA). |
Product info
Product Name
Human CES1 ELISA Kit PicoKine®
View all Carboxylesterase 1/CES1 ELISA kits
SKU/Catalog Number
EK1813
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human CES1 ELISA Kit PicoKine® (96 Tests). Quantitate Human CES1 in cell culture supernatants, serum and plasma (heparin, EDTA). Sensitivity: 0.1ng/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 CES1 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1813)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: G18-L567
Sensitivity
<0.1 ng/ml
Assay Range
0.78 ng/ml - 50 ng/ml
Standard Dilution Instructions
See datasheet of EK1813 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK1813 is reactive to CES1 in Human samples
Validated Sample Types
cell culture supernatants, serum and plasma (heparin, EDTA).
Application Guarantee
EK1813 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of Carboxylesterase 1/CES1
Liver carboxylesterase 1 also known as carboxylesterase 1 (CES1, hCE-1 or CES1A1) is an enzyme that in humans is encoded by the CES1 gene. This gene is mapped to 16q12.2. It encodes a member of the carboxylesterase large family. The family members are responsible for the hydrolysis or transesterification of various xenobiotics, such as cocaine and heroin, and endogenous substrates with ester, thioester, or amide bonds. They may participate in fatty acyl and cholesterol ester metabolism, and may play a role in the blood-brain barrier system. This enzyme is the major liver enzyme and functions in liver drug clearance. Mutations of this gene cause carboxylesterase 1 deficiency. Three transcript variants encoding three different isoforms have been found for this gene.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK1813-CAP | Anti-Human CES1 Pre-coated 96-well strip microplate | 1 |
| EK1813-ST | Human CES1 Standard | 2 vials, 50 ng/tube |
| EK1813-DA | Human CES1 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 (ng/ml) | 0 | 0.78 | 1.56 | 3.12 | 6.25 | 12.5 | 25 | 50 |
| O.D. | 0.025 | 0.234 | 0.356 | 0.681 | 1.159 | 1.427 | 1.798 | 2.020 |
Data Example Images
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Human CES1 PicoKine ELISA Kit standard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect Carboxylesterase 1/CES1, Dilution ratio of 1:10, concentration in serum and plasma is around 90 ng/ml..
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human CES1 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) | 1486 | 5674 | 24323 | 1499 | 6001 | 24678 |
| Standard deviation | 62.41 | 249.66 | 1289.12 | 97.44 | 306.05 | 1801.49 |
| CV (%) | 4.2% | 4.4% | 5.3% | 6.5% | 5.1% | 7.3% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of Carboxylesterase 1/CES1 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 | 1486 | 1472 | 1378 | 1422 | 1439 | 42.74 | 5.3% |
| Sample 2 | 5674 | 5344 | 5944 | 5180 | 5535 | 295.42 | 5.3% |
| Sample 3 | 24323 | 25116 | 24596 | 24329 | 24591 | 322.53 | 1.3% |
Protein Target Info & Infographic
Gene/Protein Information For CES1 (Source: Uniprot.Org, NCBI)
Gene Name
CES1
Full Name
Liver carboxylesterase 1
Weight
62.521kDa
Superfamily
type-B carboxylesterase/lipase family
Alternative Names
Liver carboxylesterase 1; cholesterol acyltransferase; ACAT; Brain carboxylesterase hBr1; Carboxylesterase 1; CE-1; hCE-1; Cocaine carboxylesterase; Egasyn; HMSE; Methylumbelliferyl-acetate deacetylase 1; Monocyte/macrophage serine esterase; Retinyl ester CES1 ACAT, CE-1, CEH, CES2, HMSE, HMSE1, PCE-1, REH, SES1, TGH, hCE-1 carboxylesterase 1 liver carboxylesterase 1|acyl coenzyme A:cholesterol acyltransferase|brain carboxylesterase hBr1|carboxylesterase 1 (monocyte/macrophage serine esterase 1)|carboxylesterase 2 (liver)|cholesteryl ester hydrolase|cocaine carboxylesterase|egasyn|human monocyte/macrophage serine esterase 1|methylumbelliferyl-acetate deacetylase 1|monocyte/macrophage serine esterase|retinyl ester hydrolase|serine esterase 1|triacylglycerol hydrolase
*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 CES1, check out the CES1 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 CES1: 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 CES1 ELISA Kit PicoKine® (EK1813)
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Customer Reviews
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Customer Q&As
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10 Customer Q&As for Human CES1 ELISA Kit PicoKine®
Question
Q: if the enzyme conjugated Carboxylesterase 1 antibodies are mixed with the substrate, will that convert the substrate into the enzymatic reaction product? Or the enzyme function is only activated when the antibody is attached with the Carboxylesterase 1 antigen?
C. Brown
Verified customer
Asked: 2020-11-08
Answer
A: The enzyme is always active. Avoid contaminating the substrate with enzyme prior to the incubation otherwise it compromises the assay with false positive signal.
Boster Scientific Support
Answered: 2020-11-08
Question
Q: how to proceed with the analysis of ELISA data? I measured Carboxylesterase 1 level in serum.
Verified Customer
Verified customer
Asked: 2020-05-21
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: 2020-05-21
Question
For EK1813, do we still have any kits with lot# 1241141051018?
Verified Customer
Verified customer
Asked: 2019-02-21
Answer
We do not have any kit with lot# 1241141051018 in stock. We can manufacture a new lot using the same raw materials as those used for lot# 1241141051018.
Boster Scientific Support
Answered: 2019-02-21
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
Verified Customer
Verified customer
Asked: 2018-08-26
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: 2018-08-26
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
P. Yang
Verified customer
Asked: 2018-05-04
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: 2018-05-04
Question
Q: can you tell me how to prepare cell lysates prepared for use in Picokine® ELISA kits?
Verified Customer
Verified customer
Asked: 2018-03-30
Answer
A: for 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 have an affect on immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2018-03-30
Question
Q: Can Carboxylesterase 1 ELISA Kits be used with tissue homogenates (or other non-validated sample types)?
Verified Customer
Verified customer
Asked: 2018-01-08
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 evaluated 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 see 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: 2018-01-08
Question
Q: how much samples can be assayed in a Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2017-12-15
Answer
A: The Picokine® ELISA Kits will generally run a 7-point standard curve, non-specific binding wells, and 39 samples in duplicate. this may might differ by kit so please refer to each datasheet for details.
Boster Scientific Support
Answered: 2017-12-15
Question
Q: What is the optimal O.D. value for Carboxylesterase 1 ELISA kit? I used your Carboxylesterase 1 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 Carboxylesterase 1 even though the O.D. values are not very high?
H. Jones
Verified customer
Asked: 2017-06-21
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. regarding your protocol, 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 proportion to your positive controls. normally, 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 converting 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 Carboxylesterase 1 ELISA kit to have sensitivity of 0.1ng/ml, that means the minimum amount of Carboxylesterase 1 that can be declared/interpreted as positive by the above standard is 0.1ng/ml.
Boster Scientific Support
Answered: 2017-06-21
Question
Q: can I use citrate plasma as samples in Human Carboxylesterase 1 Picokine® ELISA Kit (Catalog # EK1813)?
W. Roberts
Verified customer
Asked: 2017-02-16
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can attach metal ions from the functional domain of Carboxylesterase 1 causing degradation of its protein structure. Carboxylesterase 1 may be denatured as a result and may compromise the assay's measurements. The chilating sites could also be too close to the epitopes needed for detection and block the antigen antibody reaction. We have tested the Carboxylesterase 1 ELISA, treating samples with a number of anticoagulants and decided that heparin or EDTA can be used for treatment of blood/plasma samples. Do not use other anticoagulents when collecting samples.
Boster Scientific Support
Answered: 2017-02-16
