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AB313930

Human Pro-Cathepsin B ELISA Kit

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Human Pro-Cathepsin B ELISA Kit is a Sandwich (quantitative) ELISA for the measurement of Human Pro-Cathepsin B in Human in Cell Culture Media, Biofluids samples.

View Alternative Names

CPSB, CTSB, Cathepsin B, APP secretase, Cathepsin B1, APPS

Key facts

Detection method

Colorimetric

Sample types

Cell culture supernatant, Plasma, Serum

Reacts with

Human

Assay type

Sandwich (quantitative)

Sensitivity

= 61 pg/mL

Range

0.061 - 15 ng/mL

Assay Platform

Pre-coated microplate (12 x 8 well strips)

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "sELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Human Pro-Cathepsin B ELISA kit is an in vitro enzyme-linked immunosorbent assay for the quantitative measurement of human Pro-Cathepsin B in serum, plasma and cell culture supernatants. This assay employs an antibody specific for human Pro-Cathepsin B coated on a 96-well plate.

Recovery

[ { "sample": "Serum", "range": "96 - 125 %", "average": "= 106.6" }, { "sample": "Plasma", "range": "84 - 109 %", "average": "= 94.41" }, { "sample": "Cell culture media", "range": "68 - 76 %", "average": "= 72.69" } ]

What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Storage information
-20°C

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Cathepsin B also known as CTSB or cathepsin beta is a lysosomal cysteine protease belonging to the papain family. This enzyme possesses a molecular weight of approximately 25 to 30 kDa. You can find cathepsin B expressed in various tissues with high levels observed in the liver kidney and spleen. It plays a mechanical role in protein degradation within lysosomes operating optimally in acidic environments. The enzyme has active and inactive forms depending on structural modifications and environmental conditions.
Biological function summary

Cathepsin B participates as a proteolytic enzyme involved in protein turnover and processing. It does not function in isolation but often associates with various other proteases forming complexes essential for efficient substrate breakdown. Cathepsin B assists in the activation of other enzymes by cleaving propeptides therefore facilitating the initiation of cascade reactions. This role is critical in maintaining cellular homeostasis and modulating physiological processes including cell migration and immune response modulation.

Pathways

Cathepsin B significantly contributes to the lysosomal protein degradation pathway and the autophagy-lysosome pathway. It interacts with proteins such as B protein which are important for cellular recycling and energy homeostasis. Its activity supports the MHC class II antigen processing pathway playing an essential part in immune system functionality. Cathepsin B also exhibits interactions with Ctsb protein inhibitors which regulate its proteolytic activity within these pathways.

Cathepsin B has strong associations with cancer progression and neurological disorders such as Alzheimer's disease. Its overexpression and dysregulation are linked to tumor metastasis where it degrades extracellular matrix components promoting invasion. Ctsb protein interactions with corey mazo proteins influence tumor microenvironment and immune evasion. In Alzheimer's disease cathepsin B can influence amyloid beta peptide processing connected to neurodegenerative pathology progression. These roles highlight the potential for cathepsin B as a therapeutic target in addressing these conditions.

Product protocols

Target data

Thiol protease which is believed to participate in intracellular degradation and turnover of proteins (PubMed : 12220505). Cleaves matrix extracellular phosphoglycoprotein MEPE (PubMed : 12220505). Involved in the solubilization of cross-linked TG/thyroglobulin in the thyroid follicle lumen (By similarity). Has also been implicated in tumor invasion and metastasis (PubMed : 3972105).
See full target information CTSB
websiteProtocolBooklet
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