• Product name
    Human Cathepsin B ELISA Kit
    See all Cathepsin B kits
  • Detection method
  • Sample type
    Cell culture supernatant, Serum, Plasma, Other biological fluids, Tissue Extracts
  • Assay type
    Sandwich (quantitative)
  • Sensitivity
    < 5 pg/ml
  • Range
    156 pg/ml - 10000 pg/ml
  • Assay duration
    Multiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam’s Human Cathepsin B in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the accurate quantitative measurement of Human Cathepsin B in cell culture supernatants, serum and plasma (heparin, EDTA).

    A Cathepsin B specific mouse monoclonal antibody has been precoated onto 96-well plates. Standards and test samples are added to the wells and incubated. A biotinylated detection polyclonal antibody from goat, specific for Cathepsin B is then added followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex is added and unbound conjugates are washed away with PBS or TBS buffer. TMB is then used to visualize the HRP enzymatic reaction. TMB is catalyzed by HRP to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the Human Cathepsin B amount of sample captured in plate.

  • Tested applications
    Suitable for: Sandwich ELISAmore details
  • Platform


  • Function
    Thiol protease which is believed to participate in intracellular degradation and turnover of proteins. Has also been implicated in tumor invasion and metastasis.
  • Sequence similarities
    Belongs to the peptidase C1 family.
  • Cellular localization
    Lysosome. Melanosome. Identified by mass spectrometry in melanosome fractions from stage I to stage IV.
  • Information by UniProt
  • Alternative names
    • Amyloid precursor protein secretase
    • APP secretase
    • APPS
    • Cathepsin B heavy chain
    • Cathepsin B1
    • CathepsinB
    • CPSB
    • CTSB
    • cysteine protease
    • OTTHUMP00000116009
    • OTTHUMP00000229510
    • OTTHUMP00000229511
    • OTTHUMP00000229512
    • OTTHUMP00000229514
    • OTTHUMP00000229515
    • OTTHUMP00000229516
    • Preprocathepsin B
    see all
  • Database links


Our Abpromise guarantee covers the use of ab119584 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Sandwich ELISA Use at an assay dependent concentration.

Human Cathepsin B ELISA Kit images

  • Cathepsin B measured in culture supernatants from control (-) or stimulated cells cells (P/L: 24 hours with 50 ng x mL-1 of PMA (ab120297) with 1 ug x mL-1 of LPS (Sigma) for the last 6 hours; PHA: 48 hours with 2% PHA-M; LifeTechnologies). Data shown represents duplicates (+/- SD), samples tested in the dilution range of 1/1-1/20.

  • Cathepsin B measured in biological fluids (tested in the range of 1/10-1/1000; duplicates +/- SD).

  • Representative Standard Curve Using ab119584.


References for Human Cathepsin B ELISA Kit (ab119584)

This product has been referenced in:
  • Zhu S  et al. Inhibiting autophagy potentiates the anticancer activity of IFN1@/IFNa in chronic myeloid leukemia cells. Autophagy 9:317-27 (2013). Read more (PubMed: 23242206) »

See 1 Publication for this product

Product Wall

J’ai eu une réponse du laboratoire qui m’a confirmé que les plaques sont divisibles. La plaque peut être divisé en 12 donc vous pouvez tester 8 échantillons à chaque fois.

Une foi...

Read More

Thank you for your reply which has been forwarded to me as my colleague Karin is currently away from the office.

I am very sorry to confirm that there are no discounts available that I can provide on this occasion. I can let you know that if...

Read More

Thank you for contacting us and sorry for the delay in getting back to you.

I can confirm that the Cathepsin B Human ELISA Kit (ab119584) can detect both the mature form and uncleaved form of Cathepasin B.

The kit has been found to ...

Read More


Sign up