Interaction in vitro; bait and prey produced as a recombinant fusion protein in a baculovirus and insect cell system.
The NELF complex was tandem purified with Nelf-E affinity purification followed by immunoprecipitation with TH1-anti-FLAG antibody. Nelf-A, NELF-B, TH1, and Nelf-E captured as 3 pairwise interactions.