Nitrous oxide reductase

► Nitrous oxide reductase catalyses the last step of the denitrification pathway in bacteria. ► Structure of the “CuZ center” of purple nitrous oxide reductase. ► New insights to structure and mechanism of nitrous oxide reductase. ► Spectroscopic features and catalytic parameters of the different redox form of nitrous oxide reductase. ► Inter-subunit electron transfer from the CuA center to the catalytic CuZ center of nitrous oxide.