Redox reactions play important roles in almost all biological processes, including
photosynthesis and respiration, which are two essential energy processes that sustain all life …

Ammonia oxidizing bacteria extract energy for growth from the oxidation of ammonia to
nitrite. Ammonia monooxygenase, which initiates ammonia oxidation, remains enigmatic …

Nitrogen is an essential element of life that needs to be assimilated in its most reduced form,
ammonium. On the other hand, nitrogen exists in a multitude of oxidation states and …

Advances in technology have tremendously increased high throughput whole genome-
sequencing efforts, many of which have included prokaryotes that facilitate processes in the …

The characteristics of heme prosthetic groups and their binding sites have been analyzed in
detail in a data set of nonhomologous heme proteins. Variations in the shape, volume, and …

Over the past two decades, prominent importance of molybdenum-containing enzymes in
prokaryotes has been put forward by studies originating from different fields. Proteomic or …

The metallobiochemistry underlying the formation of the inorganic N–N-bond-containing
molecules nitrous oxide (N2O), dinitrogen (N2), and hydrazine (N2H4) is essential to the …

Sulphate-reducing organisms are widespread in anaerobic enviroments, including the
gastrointestinal tract of man and other animals. The study of these bacteria has attracted …

The electrochemical midpoint potentials (E m's) of 13 cytochromes, in globin (c, c 2, c 551, c
553), four-helix bundle (c ', b 562), αβ roll (b5), and β sandwich (f) motifs, with E m's …

Heme containing proteins are involved in a broad range of cellular functions, from oxygen
sensing and transport to catalyzing oxidoreductive reactions. The two major types of …