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 …

The metabolism of Archaea, the third domain of life, resembles in its complexity those of
Bacteria and lower Eukarya. However, this metabolic complexity in Archaea is accompanied …

Enzymes from extremely thermophilic microorganisms have been of technological interest
for some time because of their ability to catalyze reactions of industrial significance at …

Metal ion cofactors afford proteins virtually unlimited catalytic potential, enable electron
transfer reactions and have a great impact on protein stability,. Consequently …

This book aims to make a contribution to two debates: on the political liberalization and
democratization of countries in the 'Third World', and on the modern and contemporary …

The genus Thermococcus, comprised of sulfur-reducing hyperthermophilic archaea,
belongs to the order Thermococcales in Euryarchaeota along with the closely related genus …

The complete genome of the green-sulfur eubacterium Chlorobium tepidum TLS was
determined to be a single circular chromosome of 2,154,946 bp. This represents the first …

The theory of autotrophic origins of life posits that the first cells on Earth satisfied their carbon
needs from CO 2. At hydrothermal vents, spontaneous synthesis of methane via …

An early divergence in evolution has resulted in two prokaryotic domains, the Bacteria and
the Archaea. Whereas the central metabolic routes of bacteria and eukaryotes are generally …