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Product Info Summary
| SKU: | EK1929 |
|---|---|
| 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 Cathepsin V/CTSV ELISA Kit PicoKine®
View all Cathepsin V ELISA kits
SKU/Catalog Number
EK1929
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human Cathepsin V ELISA Kit PicoKine® (96 Tests). Quantitate Human CTSV in cell culture supernatants, serum and plasma (heparin, EDTA). Sensitivity: 15pg/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 Cathepsin V/CTSV ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1929)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: V18-V334
Sensitivity
<15 pg/ml
Assay Range
78 pg/ml - 5,000 pg/ml
Standard Dilution Instructions
See datasheet of EK1929 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK1929 is reactive to CTSV in Human samples
Validated Sample Types
cell culture supernatants, serum and plasma (heparin, EDTA).
Application Guarantee
EK1929 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of Cathepsin V
Cathepsin L2, also known as cathepsin V and encoded by the CTSL2 gene, is a human gene. It is mapped to 9q22.33. The protein encoded by this gene, a member of the peptidase C1 family, is a lysosomal cysteine proteinase that may play an important role in corneal physiology. This gene is expressed in colorectal and breast carcinomas but not in normal colon, mammary gland, or peritumoral tissues, suggesting a possible role for this gene in tumor processes. Alternatively spliced variants, encoding the same protein, have been identified.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK1929-CAP | Anti-Human CTSV Pre-coated 96-well strip microplate | 1 |
| EK1929-ST | Human CTSV Standard | 2 vials, 10 ng/tube |
| EK1929-DA | Human CTSV 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 | 78 | 156 | 312 | 625 | 1250 | 2500 | 5000 |
| O.D. | 0.096 | 0.132 | 0.216 | 0.379 | 0.609 | 1.011 | 1.828 | 2.542 |
Data Example Images
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Human Cathepsin V PicoKine ELISA Kitstandard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect Cathepsin V, Dilution ratio of 1:1, concentration in serum and plasma is around 300 pg/ml..
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human Cathepsin V/CTSV 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) | 100 | 714 | 2346 | 136 | 823 | 2464 |
| Standard deviation | 5.30 | 44.27 | 105.57 | 6.39 | 52.67 | 133.06 |
| CV (%) | 5.3% | 6.2% | 4.5% | 4.7% | 6.4% | 5.4% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of Cathepsin V 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 | 100 | 121 | 111 | 116 | 112 | 7.77 | 6.9% |
| Sample 2 | 741 | 756 | 857 | 851 | 801 | 53.05 | 6.6% |
| Sample 3 | 2346 | 2384 | 2464 | 2369 | 2390 | 44.40 | 1.8% |
Protein Target Info & Infographic
Gene/Protein Information For CTSV (Source: Uniprot.Org, NCBI)
Gene Name
CTSV
Full Name
Cathepsin L2
Weight
37.329kDa
Superfamily
peptidase C1 family
Alternative Names
Cathepsin L2; Cathepsin U; Cathepsin V; CTSV; CATL2; CTSL2; CTSU; UNQ268/PRO305 CTSV CATL2, CTSL2, CTSU cathepsin V cathepsin L2|cathepsin L2, preproprotein|cathepsin U
*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 CTSV, check out the CTSV 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 CTSV: 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 Cathepsin V/CTSV ELISA Kit PicoKine® (EK1929)
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Customer Reviews
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Customer Q&As
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9 Customer Q&As for Human Cathepsin V/CTSV ELISA Kit PicoKine®
Question
Q: What is the optimal O.D. value for Cathepsin V ELISA kit? I performed your Cathepsin V 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. is it safe to say these samples contain Cathepsin V even though the O.D. values are not very high?
M. Thompson
Verified customer
Asked: 2020-08-29
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. what you should focus on is whether your sample O.D. values are statistically significantly higher than your blank values. regarding 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 Cathepsin V ELISA kit to have sensitivity of 15pg/ml, that means the minimum amount of Cathepsin V that can be declared/interpreted as positive by the above standard is 15pg/ml.
Boster Scientific Support
Answered: 2020-08-29
Question
Q: how long can samples (cell cultures, serum, and plasma) be stored and still be stable for measuring Cathepsin V using the EK1929 Human Cathepsin V Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2020-05-27
Answer
A: Boster Bio does not evaluate sample stability. Variations in sample collection, processing, and storage may alter the stabilityof samples. It is recommend to assay sample right after collection when possible, or aliquot into single use volumes and store samples frozen. avoid repeat freeze-thaw cycles with the stored samples in order to limit protein degradation.
Boster Scientific Support
Answered: 2020-05-27
Question
Q: which procedure should I follow in order to thaw whole blood sample for Cathepsin V ELISA after freezing?
Verified Customer
Verified customer
Asked: 2019-12-18
Answer
A: do not freeze and thaw whole blood. erythrocytes are fragile and, if frozen and thawed, will undergo hemolysis rendering the samples useless. To keep your blood samples to test Cathepsin V for a later time, you should let the blood clot in glass tubes and collect the serum to freeze for later use.
Boster Scientific Support
Answered: 2019-12-18
Question
Q: can you recommend the dilution ratio of serum samples for detection of Cathepsin V in Human serum? I am trying to measure a multiple analytes and it requires 100ul of diluted samples for each well. We have limited sample volumes so we like to dilute as much as possible.
M. Krishna
Verified customer
Asked: 2019-02-13
Answer
A: having little idea about the physiological or pathological context of your samples we cannot recommend a dilution ratio without performing a pilot test with your samples. Here is how you can perform a pilot study on your own: perform a serial dilution of your samples on the Cathepsin V ELISA kit to make sure you have a linear ascending curve followed by a plateau, which signifies the samples saturating the detection limit of the kit. Then you can pick the dilution ratios from samples in the linear part of the curve as your experimental dilution ratio.
If you are interested in using our ELISA service, you can also send us your sample and we will take care of everything for you. You can check our service details here: bosterbio.com/services/assay-services/ELISA-testing-service
Since you mentioned you have limited samples, our cost effective multiplex ELISA service would fit perfectly for your needs, where we can generate dozens of data points using as little as 25ul sample volume. Information on this service is also in the above link.
Boster Scientific Support
Answered: 2019-02-13
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
Verified Customer
Verified customer
Asked: 2018-09-09
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: 2018-09-09
Question
Q: can I use citrate plasma as samples in Human Cathepsin V Picokine® ELISA Kit (Catalog # EK1929)?
Verified Customer
Verified customer
Asked: 2017-06-16
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can attach metal ions from the functional domain of Cathepsin V causing degradation of its protein structure. Cathepsin V 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 Cathepsin V ELISA, treating samples with different 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: 2017-06-16
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
Z. Liu
Verified customer
Asked: 2017-03-24
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: 2017-03-24
Question
Q: can you tell me how to prepare cell lysates prepared for use in Picokine® ELISA kits?
B. Tiwari
Verified customer
Asked: 2017-02-13
Answer
A: for those Picokine® ELISAs where cell or tissue lysate is a validated sample type, sample preparation instructions for lysate are included in the product insert. Components in lysate and lysis buffer can change immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2017-02-13
Question
Q: how much samples can be assayed in a Picokine® ELISA Kit?
R. Wu
Verified customer
Asked: 2016-01-10
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 depends upon the kit used so please refer to each datasheet for details.
Boster Scientific Support
Answered: 2016-01-10
