| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1174490 | Analytical Biochemistry | 2008 | 5 Pages |
A simple radiometric assay for histone acetyltransferase (HAT) activity employing a PhosphorImager is described. In the proposed procedure, following incubation of [1-14C]acetyl coenzyme A (CoA), histones, and HAT enzyme, radiolabeled histones are fixed on GF/F glass microfiber filter while the excess of acetyl CoA is washed out. Afterward, the filter is exposed to a phosphor-screen and the resulting spot signals are quantified with a PhosphorImager. Given the small volumes required, the new assay reduces reagent consumption and contaminated waste. Moreover, the assay can be performed with a large number of samples simultaneously, is applicable on different protein substrates, and is adaptable to the analysis of other protein modifications.
