Tuning the activity of Cu,Zn superoxide dismutase through site-directed mutagenesis: a relatively active monomeric species - Lucia Banci; I. Bertini; Maria Silvia Viezzoli; Emanuele Argese; Emilio F. Orsega; Choi Ying Chiu; Guy T. Mullenbach (JBIC Journal of Biological Inorganic Chemistry, 1997)