Conformation of pseudoazurin in the 152 kDa electron transfer complex with nitrite reductase determined by paramagnetic NMR.

Abstract excerpt

Copper-containing nitrite reductase is able to catalyze the reduction of nitrite with a turnover rate of several hundreds per second. Electrons for the reaction are donated by the electron transfer protein pseudoazurin. The process of protein complex formation, electron transfer and dissociation must occur on the millisecond timescale to enable the fast turnover of the enzyme. The structure of this transient...

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