Structure and Function of SNM1 Family Nucleases -- Molecular Details of DNA Integration by CRISPR-Associated Proteins During Adaptation in Bacteria and Archaea -- Ordered Motions in the Nitric-Oxide Dioxygenase Mechanism of Flavohemoglobin and Assorted Globins with Tightly Coupled Reductases -- Structural Analyses of the Multicopper Site of CopG Support a Role as a Redox Enzyme.