Catalase Activity Assay Kit (Immunocapture)
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(12 Publications)
Catalase Activity Assay Kit ab118184 is used to determine the relative specific activity (activity and quantity) of catalase in a sample.
View Alternative Names
Catalase, CAT
- FuncS
Supplier Data
Functional Studies - Catalase Activity Assay Kit (Immunocapture) (AB118184)
Example standard curve for the purified human catalase sample ab91026.
- FuncS
Supplier Data
Functional Studies - Catalase Activity Assay Kit (Immunocapture) (AB118184)
Example relative specific activity – comparing the activity and quantity of purified erythrocyte catalase (ab91026) and catalase from human hepg2 lysate. The HepG2 sample is determined to have a higher specific activity rate.
- FuncS
Supplier Data
Functional Studies - Catalase Activity Assay Kit (Immunocapture) (AB118184)
Example standard curve for the purified human catalase sample ab91026.
- FuncS
Supplier Data
Functional Studies - Catalase Activity Assay Kit (Immunocapture) (AB118184)
Example sample curves demonstrating the working range of the assay for a human and cultured cell line lysate (HepG2).
- FuncS
Supplier Data
Functional Studies - Catalase Activity Assay Kit (Immunocapture) (AB118184)
Example sample curves demonstrating the working range of the assay for a human and cultured cell line lysate (HepG2).
Reactivity data
Product details
Catalase Activity Assay Kit ab118184 is used to determine the relative specific activity (activity and quantity) of catalase in a sample. Capture antibodies specific for catalase are pre-coated in the microplate wells. The native enzyme is immunocaptured within the wells of the microplate; this removes all other enzymes.
The catalase assay buffer contains hydrogen peroxide which reacts with a substrate to make a luminescent product. Catalase functions rapidly to remove hydrogen peroxide from the solution and reduce the production of light. Therefore the light produced in each well is inversely proportional to the amount of catalase activity.
After catalase activity measurement the quantity of catalase is measured by adding an anti-catalase detector antibody to each well. After washing away unbound detector antibody, HRP-conjugated label specific for the detector antibody is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of catalase bound. The developing blue color is measured at 600 nm. Optionally the reaction can be stopped by adding hydrochloric acid which changes the color from blue to yellow and the intensity can be measured at 450 nm.
Catalase assay protocol summary:
- add samples to wells
- incubate for 3 hrs at room temp
- wash with wash buffer
- add activity solution and hydrogen peroxide solution
- analyze with luminescence microplate reader for 30 min
- wash
- add detector antibody and incubate for 1 hr at room temp
- wash
- add HRP label and incubate for 1 hr at room temp
- wash
- add HRP development solution and analyze with microplate reader for 15 min in kinetic mode
REACH authorisation
Abcam has not and does not intend to apply for the REACH Authorisation of customers' uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.
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Supplementary information
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Biological function summary
Catalase contributes to antioxidant defense by breaking down hydrogen peroxide preventing cellular damage. In peroxisomes it works alongside other peroxisomal enzymes to maintain cell health and metabolic regulation. Catalase does not form a complex but interacts closely with other enzymes like superoxide dismutase which dismutates superoxide radicals into less harmful substances. Increased Catalase activity levels can be measured using Catalase activity kits and activity assays allowing us to learn about peroxisome function.
Pathways
Hydrogen peroxide removal by Catalase is vital in the reactive oxygen species (ROS) metabolic process and plays a part in the cellular response to oxidative stress. Catalase interacts with the glutathione peroxidase pathway safeguarding cells from oxidative stress-related damage. Superoxide dismutase works synergistically with Catalase transforming superoxide anions into hydrogen peroxide before its decomposition by Catalase. These activities highlight the essential role Catalase plays in protecting cells from oxidative stress damage.
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Publications (12)
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Chemical biology & drug design 105:e70142 PubMed40556500
2025
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RSC advances 15:20143-20167 PubMed40519680
2025
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Immunity, inflammation and disease 13:e70111 PubMed39807748
2025
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Oxidative medicine and cellular longevity 2020:7126976 PubMed32256960
2020
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Neurotoxicity research 36:472-490 PubMed31187430
2019
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Colloids and surfaces. B, Biointerfaces 171:707-714 PubMed30054048
2018
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International journal of molecular medicine 42:2260-2268 PubMed30015834
2018
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Neurotoxicity research 34:660-676 PubMed29959728
2018
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Toxicological sciences : an official journal of the Society of Toxicology 164:428-438 PubMed29718361
2018
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Frontiers in pharmacology 9:372 PubMed29725297
2018
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Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.
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