The ATPase Activity of Escherichia coli Expressed AAA+-ATPase Protein
[Abstract] ATPases are the enzymes that breakdown ATP to ADP and release inorganic phosphate (Pi). Here we provide a detailed protocol to determine the ATPase activity of a recombinant AAA+-ATPase protein (GENERAL CONTROL NON-REPRESSIBLE-4 [GCN4]) by spectrophotometric absorption at 360 nm to measure the accumulated inorganic phosphate. In ...
In vitro RNA-dependent RNA Polymerase Assay Using Arabidopsis RDR6
[Abstract] RNA-dependent RNA polymerases (RdRPs) in eukaryotes convert single-stranded RNAs into double-stranded RNAs, thereby amplifying small interfering RNAs that play crucial roles in the regulation of development, maintenance of genome integrity and antiviral immunity. Here, we describe a method of in vitro RdRP assay using recombinant ...
Ubiquitin Proteasome Activity Measurement in Total Plant Extracts
Authors: Suayib Üstün and
Frederik Börnke,
date: 09/05/2017,
view: 6158,
Q&A: 0
[Abstract] The fine-tuned balance of protein level, conformation and location within the cell is vital for the dynamic changes required for a cell to respond to a given stimulus. This requires the regulated turnover of damaged or short-lived proteins through the ubiquitin proteasome system (UPS). Thus, the protease activity of the proteasome is adjusted to ...