The reaction takes place at a specialized metal center that dramatically increases the acidity
of H2 and leads to a heterolytic splitting of the molecule which is strongly accelerated by the …

If the atmosphere of the early Earth was hydrogen-rich, 1 it is reasonable to think that
hydrogenases, the enzymes enabling cells to use molecular hydrogen, were probably …

Hydrogenases (H2ases) catalyze the reversible oxidation of molecular hydrogen and play a
central role in microbial energy metabolism. Most of these enzymes are found in Archaea …

Nickel is an essential nutrient for selected microorganisms where it participates in a variety
of cellular processes. Many microbes are capable of sensing cellular nickel ion …

Hydrogenase proteins catalyze the reversible conversion of molecular hydrogen to protons
and electrons. The most abundant hydrogenases contain a [NiFe] active site; these proteins …

Cyanobacteria may possess several enzymes that are directly involved in dihydrogen
metabolism: nitrogenase (s) catalyzing the production of hydrogen concomitantly with the …

Due to the depletion and increasing cost of fossil fuels, the production of cyanobacteria-
based hydrogen as eco-friendly and renewable energy for the future seems promising. The …

Hydrogen, the most abundant element in the Universe, is considered to be an environmental
friendly energy carrier because its combustion generates water. Nowadays, owing to the …

There continues to be widespread interest in the applications of hydrogen as a clean fuel
and its potential for local electricity production and use in transport. Recent years have seen …

The gastric pathogen Helicobacter pylori is known to be able to use molecular hydrogen as
a respiratory substrate when grown in the laboratory. We found that hydrogen is available in …