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An Acetyl-Click Chemistry Assay to Measure Histone Acetyltransferase 1 Acetylation
Published on: January 26, 2024
An easy assay for histone acetyltransferase activity using a PhosphorImager
1Departament de Bioquímica i Biologia Molecular, Facultat de Ciències Biològiques, 46100 Burjassot (València), Spain.
Analytical Biochemistry
|September 23, 2008
Summary
A new radiometric assay simplifies the measurement of histone acetyltransferase (HAT) activity using a PhosphorImager. This method is efficient, reduces waste, and is adaptable for analyzing various protein modifications.
Area of Science:
- Biochemistry
- Molecular Biology
- Enzymology
Background:
- Histone acetyltransferase (HAT) enzymes play crucial roles in gene regulation.
- Accurate and efficient assays are needed to study HAT activity.
- Existing methods may be resource-intensive or less adaptable.
Purpose of the Study:
- To describe a simple and efficient radiometric assay for quantifying histone acetyltransferase (HAT) activity.
- To present a method adaptable for various protein substrates and modifications.
- To reduce reagent consumption and waste in HAT activity assays.
Main Methods:
- Incubation of [1-(14)C]acetyl coenzyme A (CoA), histones, and HAT enzyme.
- Fixation of radiolabeled histones on GF/F glass microfiber filters.
- Quantification of signals using a PhosphorImager after washing out excess acetyl CoA.
Main Results:
- The assay effectively measures HAT activity using a PhosphorImager.
- Small reaction volumes lead to reduced reagent use and contaminated waste.
- The assay demonstrates applicability to different protein substrates.
Conclusions:
- A simple, robust radiometric assay for HAT activity has been developed.
- The assay is suitable for high-throughput analysis and adaptable to other protein modifications.
- This method offers advantages in terms of efficiency and waste reduction.
