1. Laboratoire d'Interactions Moléculaires et de Technologie de Séparation, Université de Technologie de Compiègne, URA-CNRS 1442, Compiègne, France, ARL Division of Biotechnology and Department of Biochemistry, University of Arizona, Tucson, Arizona 85721, Faculté des Sciences, Université Henri Poincaré−Nancy I, Vandœuvre-lès-Nancy, France, and Department of Biochemistry, Physiology, and Microbiology, State University of Gent, Gent, Belgium