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

Dissimilatory sulphate reduction is the unifying and defining trait of sulphate-reducing
prokaryotes (SRP). In their predominant habitats, sulphate-rich marine sediments, SRP have …

Electrically conductive appendages from the anaerobic bacterium Geobacter sulfurreducens
were first observed two decades ago, with genetic and biochemical data suggesting that …

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 …

The number of sequenced genomes of sulfate reducing organisms (SRO) has increased
significantly in the recent years, providing an opportunity for a broader perspective into their …

The respiration of oxygen is fundamental to the life of higher animals and plants. The basic
respiratory process in the mitochondria of these organisms involves the donation of …

Hemes remain one of the most visible and versatile classes of cofactors utilized in biology. 1
Since their discovery, the structural and functional aspects of heme proteins have fascinated …

The enzyme cytochrome c nitrite reductase catalyses the six-electron reduction of nitrite to
ammonia as one of the key stepsin the biological nitrogen cycle, where it participates inthe …

Cytochromes c are among the most studied proteins. This is possibly due to their relatively
high thermodynamic stability and their red color, which makes protein purification easier. 1 …

This Handbook on Metalloproteins focuses on the available structural information of proteins
and their metal ion coordination spheres. It centers on the metal ions indispensable for life …