Recognition of binding sites I and II by the TrpI activator protein of Pseudomonas aeruginosa: efficient binding to both sites requires InGP even when site II is replaced by site I1Published in conjunction with A Wisconsin Gathering Honoring Waclaw Szybalski on the occasion of his 75th year and 20years of Editorship-in-Chief of Gene, 10–11 August 1997, University of Wisconsin, Madison, WI, USA.1