The advent of heme during evolution allowed organisms possessing this compound to
safely and efficiently carry out a variety of chemical reactions that otherwise were difficult or …

Highlights•Anammox bacteria only assimilate ferrous iron.•The Ahb pathway produces heme
b in anammox bacteria.•Individual systems may mature periplasmic and anammoxosomal …

Living systems are built from a small subset of the atomic elements, including the bulk
macronutrients (C, H, N, O, P, S) and ions (Mg, K, Na, Ca) together with a small but variable …

The capacity of haem to transfer electrons, bind diatomic gases, and catalyse various
biochemical reactions makes it one of the essential biomolecules on Earth and one that was …

Iron porphyrins play several important roles in present-day living systems and probably
already existed in very early life forms. Hemin (= ferric protoporphyrin IX= ferric heme b), for …

Cytochrome c oxidase in animals, plants and many aerobic bacteria functions as the
terminal enzyme of the respiratory chain where it reduces molecular oxygen to form water in …

Allosteric heme proteins can fulfill a very large number of different functions thanks to the
remarkable chemical versatility of heme through the entire living kingdom. Their efficacy …

Biotechnology has a high potential to substantially contribute to a low-carbon society.
Several green processes are already well established, utilizing the unique capacity of living …

The cytochrome bc (cyt bc) complexes are involved in Q‐cycling; they oxidize membrane
quinols by high‐potential electron acceptors, such as cytochromes or plastocyanin, and …

Biotechnology has a high potential to substantially contribute to a low-carbon society.
Several green processes are already well established, utilizing the unique capacity of living …