Purification of Recombinant Human PARG and Activity Assays

Autor: Françoise Dantzer, Éléa Héberlé, Barbara Camuzeaux, Jean-Christophe Amé, Valérie Schreiber
Rok vydání: 2017
Předmět:
Zdroj: Methods in Molecular Biology ISBN: 9781493969920
Popis: The purification of Poly(ADP-ribose) glycohydrolase (PARG) from overexpressing bacteria Escherichia coli is described here to a fast and reproducible one chromatographic step protocol. After cell lysis, GST-PARG-fusion proteins from the crude extract are affinity purified by a Glutathione 4B Sepharose chromatographic step. The PARG proteins are then freed from their GST-fusion by overnight enzymatic cleavage using the preScission protease. As described in the protocol, more than 500 μg of highly active human PARG can be obtained from 1.5 L of E. coli culture.
Databáze: OpenAIRE