Human Cystatin B PicoKine™ ELISA Kit
|Size||96wells/kit, with removable strips.|
|Sample Type||cell culture supernates, serum, plasma(heparin, EDTA), saliva, urine and human milk.|
|Product Name||Human Cystatin 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 Cystatin B. 96wells/kit, with removable strips.|
|Cite This Product||Human Cystatin B PicoKine™ ELISA Kit (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1205)|
|Sample Type||cell culture supernates, serum, plasma(heparin, EDTA), saliva, urine and human milk..
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 thata are not specified above or contact us to check for feasibility.
|Immunogen||Expression system for standard: E.coli; Immunogen sequence: M2-F98|
|Cross Reactivity||There is no detectable cross-reactivity with other relevant proteins.|
|EK1205-CAP||96-well plate precoated with anti-Human CSTB antibody||1|
|EK1205-ST||lyophilized recombinant Human CSTB standard||10ng/tube|
|EK1205-DA||biotinylated anti-Human CSTB antibody||130ul(dilution 1:100)|
|AR1103||Avidin-Biotin-Peroxidase Complex(ABC)||130ul(dilution 1:100)|
|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|
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 Cystatin B PicoKine™ ELISA Kit
(TMB reaction incubate at 37°C for 20-25min)
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)
|Alternative Names||Cystatin-B;CPI-B;Liver thiol proteinase inhibitor;Stefin-B;CSTB;CST6, STFB;|
|Subcellular Localization||Cytoplasm . Nucleus .|
|Molecular Weight||11140 MW|
*if product is indicated to react with multiple species, protein info is based on the human gene.
|Protein Function||This is an intracellular thiol proteinase inhibitor. Tightly binding reversible inhibitor of cathepsins L, H and B.|
|Background||Cystatin B(CSTB), also called STFB, is a small protein that is a member of the superfamily of cysteine protease inhibitors. It has been isolated from human spleen and liver and its amino acid sequence has been fully determined. The cystatin B gene is located on 21q22.3. It is widely distributed and is localized mostly intracellularly, but has been found extracellularly. The protein is able to form a dimer stabilized by noncovalent forces, inhibiting papain and cathepsins l, h and b. Its role is thought to be as a protector against the proteinases leaking from lysosomes. A cystatin B multiprotein complex might have a specific cerebellar function, and that the loss of this function might contribute to the etiopathogenesis of EPM1. Upon differentiation to myotubes, CSTB becomes excluded from the nucleus and lysosomes, suggesting that the subcellular distribution of CSTB is dependent on the differentiation status of the cell.|
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