Related Experiment Video
Updated: Apr 11, 2026
09:43
Measurement of Heme Synthesis Levels in Mammalian Cells
Published on: July 9, 2015
12.6K
A simple and highly sensitive method of measuring heme oxygenase activity
Biological Chemistry
|June 4, 2015
Summary
A new fluorescent protein assay using UnaG simplifies heme oxygenase (HO) activity measurement. This sensitive method works across diverse organisms, aiding heme degradation studies.
Area of Science:
- Biochemistry
- Enzymology
Background:
- Heme oxygenase (HO) is crucial for heme degradation, catalyzing heme conversion into biliverdin, iron, and carbon monoxide.
- HO activity is vital in various biological processes and has been studied across diverse species.
- Existing assays for HO activity are often complex and lack sufficient sensitivity.
Purpose of the Study:
- To develop a highly sensitive and simple assay for measuring heme oxygenase activity.
- To validate the utility of the eel bilirubin-bound fluorescent protein, UnaG, for HO activity assessment.
Main Methods:
- Utilized UnaG, an eel bilirubin-bound fluorescent protein, as a reporter for HO activity.
- Tested the assay with various enzyme sources, including human cultured cells, plant tissue homogenates, and recombinant yeast HO.
Main Results:
- The UnaG-based assay demonstrated high sensitivity and simplicity in measuring HO activity.
- Successful data acquisition was achieved using diverse biological samples, confirming assay robustness.
- The method proved effective for examining HO activity across different organisms.
Conclusions:
- The UnaG-based fluorescent assay provides a significant advancement for studying heme oxygenase activity.
- This simplified and sensitive method facilitates broader research into heme metabolism and HO function in various biological systems.
