Human Pro-Cathepsin B ELISA Kit PicoKine®, Carrier-free

About this product

Human Pro-Cathepsin B ELISA Kit PicoKine® (96 Tests). Quantitate Human CTSB in cell culture supernatants, serum, plasma (heparin), saliva and urine. Sensitivity: 20 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.

Specifications

Catalog number

EK2130-carrier-free

Size / count

96 Well With Removable Strips

Dry ice

No

Hazardous

No

Discontinued

Yes

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.

Reproducibility

<table cellpadding="3"><tr><th>Lots</th><th>Lot 1 (pg/ml)</th><th>Lot 2 (pg/ml)</th><th>Lot 3 (pg/ml)</th><th>Lot 4 (pg/ml)</th><th>Mean (pg/ml)</th><th>Standard Deviation</th><th>CV (%)</th></tr><tr><td>Sample 1</td><td>225</td><td>269</td><td>241</td><td>216</td><td>238</td><td>8.08</td><td>3.4%</td></tr><tr><td>Sample 2</td><td>1024</td><td>1103</td><td>985</td><td>1240</td><td>1088</td><td>26.11</td><td>2.4%</td></tr><tr><td>Sample 3</td><td>1858</td><td>1956</td><td>1785</td><td>2006</td><td>1901</td><td>58.94</td><td>3.1%</td></tr></table>*number of samples for each test n=16.

Synonyms

CTSB; CPSB; Cathepsin B; EC 3.4.22.1; APP secretase; APPS; Cathepsin B1 [Cleaved into: Cathepsin B light chain; Cathepsin B heavy chain]

Gene Name

cathepsin B

Gene ID

1508

UniProt

P07858

Reactivity

Human

Cross Reactivity

There is no detectable cross-reactivity with other relevant proteins.

Immunogen

Expression system for standard: NS0; Immunogen sequence: R18-I339

Applications

ELISA

Standard

10 ng/tube

Sample Type

cell culture supernatants, serum, plasma (heparin), saliva and urine

Detection Range

0.156 ng/ml - 10 ng/ml

Sensitivity

<20 pg/ml

Components

Description|Quantity Pre-coated 96-well strip microplate|1 Standard|2 vials Biotinylated antibody (100x)|100ul Avidin-Biotin-Peroxidase Complex (100x)|100ul Sample Diluent|30ml Antibody Diluent|12ml Avidin-Biotin-Peroxidase Diluent|12ml Color Developing Reagent (TMB)|10ml Stop Solution|10ml Wash Buffer (25x)|20ml Adhesive plate sealers|4

Storage Conditions

Store at 4℃ for 6 months, at -20℃ 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.)

Specificity

Natural and recombinant human CTSB

Anticoagulant

heparin

Protein Name

Cathepsin B