Towards a natural system of organisms: proposal for the domains Archaea, Bacteria, and
Eucarya. Proceedings of the National Academy of Sciences, 87(12), 4576-4579.
It is intriguing to note that, whereas majority of hydrogenases expressed in Bacteria and Archaea are of [NiFe]-type, (7) only [FeFe]-enzymes are expressed in
Eucarya.
Biochemists, microbiologists, and other researchers synthesize what is known about the molecular and cellular biology of a group of organisms that are different from both Bacteria and the
Eucarya, have played a central role in the evolution of life, and often thrive in places previously thought to be totally inimical to life.
When viewed in this way, life on Earth is divided into three main groups: the
eucarya, the bacteria, and the archaea.
In
Eucarya, tRNA introns are small and invariably interrupt the anticodon loop 1 base 3' to the anticodon.