NS3 helicase from the hepatitis C virus can function as a monomer or oligomer depending on enzyme and substrate concentration
Jennings, TA, MACKINTOSH, SG, Harrison, MK, Sikora, D, Sikora, B, Tackett, AJ, Cameron, CE, Raney, KD. NS3 helicase from the hepatitis C virus can function as a monomer or oligomer depending on enzyme and substrate concentration. J Biol Chem. 2009; (284):4806-14.