Human Cathepsin B PicoKine™ ELISA Kit
|Size||96wells/kit, with removable strips.|
|Sample Type||cell culture supernates, cell lysates, serum and plasma (heparin, EDTA).|
|Product Name||Human Cathepsin B PicoKine™ ELISA Kit|
|Storage & Handling||Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles(Shipped with wet ice.)|
|Size||96wells/kit, with removable strips.|
|Description||Sandwich High Sensitivity ELISA kit for Quantitative Detection of Human Cathepsin B. 96wells/kit, with removable strips.|
|Cite This Product||Human Cathepsin B PicoKine™ ELISA Kit (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0670)|
|Sample Type||cell culture supernates, cell lysates, serum and plasma (heparin, EDTA)..
Anticoagulant(s): heparin or EDTA
*The recommended anticoagulants are proven to not block the antibody binding sites on the target antigen. Please do not collect blood sample with other anticoagulants that are not specified above or contact us to check for feasibility.
|Immunogen||Expression system for standard: NSO; Immunogen sequence: R18-I339|
|Cross Reactivity||There is no detectable cross-reactivity with other relevant proteins.|
|Antibody Clonalities||Capture Antibody | Detection Antibody:
polyclonal antibody from goat|polyclonal antibody from goat
|EK0670-CAP||96-well plate precoated with anti-Human CTSB antibody||1|
|EK0670-ST||lyophilized recombinant Human CTSB standard||10ng/tube|
|EK0670-DA||biotinylated anti-Human CTSB antibody||130ul|
|AR1106-1||sample diluent buffer||30ml|
|AR1106-2||antibody diluent buffer||12ml|
|AR1106-3||ABC diluent buffer||12ml|
|AR1104||TMB color developing agent||10ml|
|AR1105||TMB stop solution||10ml|
*Why there is no wash buffer? Our Avidin-Biotin-Peroxidase Diluent contains the detergent (TWEEN) normally present in other companies' ELISA kits. This saves you the step of having to wash with the special wash buffer and achieve similar or better signal to noise ratio. The wash can use regular wash buffers (PBS, TBS etc.) commonly found in labs.
Materials Required But Not Provided
- Microplate reader in standard size.
- Automated plate washer.
- Adjustable pipettes and pipette tips. Multichannel pipettes are recommended in the condition of large amount of samples in the detection.
- Clean tubes and Eppendorf tubes.
- Washing buffer (neutral PBS or TBS).
- Preparation of 0.01M TBS: Add 1.2g Tris, 8.5g NaCl; 450μl of purified acetic acid or 700μl of concentrated hydrochloric acid to 1000ml H2
- Preparation of 0.01 M PBS: Add 8.5g sodium chloride, 1.4g Na O and adjust pH to 7.2-7.
Typical Data Obtained from Human Cathepsin B PicoKine™ ELISA Kit
(TMB reaction incubate at 37°C for 15-25min)
Intra/Inter Assay Precision
|Intra-Assay Precision||Inter-Assay Precision|
Three samples with differing target protein concentrations were assayed using four different lots to measure the CV% lot to lot variance.
To assay reproducibility, three samples with differing target protein concentrations were assayed using four different lots.
|Lots||Lot1 (pg/ml)||Lot2 (pg/ml)||Lot3 (pg/ml)||Lot4 (pg/ml)||Mean (pg/ml)||Standard Deviation||CV (%)|
*The typical data is obtained from Boster's internal QC result and for reference only. It may differ from the lab test results of the end users. It is more important that the user's lab test results reflect the same linearity demonstrated in the typical data than achieving exactly the same O.D. values.
Protein Target Info (Source: Uniprot.org)
|Protein Name||Cathepsin B|
|Alternative Names||Cathepsin B;126.96.36.199;APP secretase;APPS;Cathepsin B1;Cathepsin B light chain;Cathepsin B heavy chain;CTSB;CPSB;|
|Subcellular Localization||Lysosome. Melanosome. Secreted, extracellular space . Identified by mass spectrometry in melanosome fractions from stage I to stage IV.|
|Molecular Weight||37822 MW|
*if product is indicated to react with multiple species, protein info is based on the human gene.
|Protein Function||Thiol protease which is believed to participate in intracellular degradation and turnover of proteins. Has also been implicated in tumor invasion and metastasis.|
|Research Areas||Angiogenesis, Cancer, Cell Adhesion, Cell Adhesion Proteins, Cytoskeleton / Ecm, Ecm Enzymes, Extracellular Matrix, Invasion/Microenvironment, Membrane Proteins, Neuroscience, Signal Transduction
*You can search these to find other products in these research areas.
|Background||Cathepsin B is an enzymatic protein belonging to the peptidase or protease families. In humans, it is coded by the CTSB gene.1, 2 And this gene is mapped to chromosome 8p22.3 The protein encoded by this gene is a lysosomal cysteine proteinase composed of a dimer of disulfide-linked heavy and light chains, both produced from a single protein precursor. It is a member of the peptidase C1 family. Cathepsin B was once suspected as a candidate protease participating in the conversion of beta-amyloid precursor protein into the amyloid plaques found in Alzheimer's disease patients. However, this function is now known to be mediated by BACE1 protease. It is now thought that cathepsin B can degrade beta-amyloid precursor protein into harmless fragments. Thus, it is conceivable cathepsin B may play a pivotal role in the natural defense against Alzheimer's disease.4 Overexpression of cathepsin B has been associated with esophageal adenocarcinoma and other tumors. At least five transcript variants encoding the same protein have been found for this gene. The standard product used in this kit is recombinant human Cathepsin B with the molecular mass of 37KDa.|
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1. Diluent the samples with the provided sample diluent buffer into 100ul.
2. Add 50ul of standard solution, when 50ul of sample will be added into a well.
• Add tissue homogenates into the wells and then add ABC and TMB without adding any biotinylated detection antibody to see if any signal will be observed.
• If no signal is produced, then you can work on the tissue sample by using the kit.
The 1XTBS can be used if the pH value falls in the range of 7.2-7.6.
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