Woese and Fox's 1977 paper on the discovery of the Archaea triggered a revolution in the
field of evolutionary biology by showing that life was divided into not only prokaryotes and …

Unlike other essential trace elements that interact with proteins in the form of cofactors,
selenium (Se) becomes co-translationally incorporated into the polypeptide chain as part of …

The origin and cellular complexity of eukaryotes represent a major enigma in biology.
Current data support scenarios in which an archaeal host cell and an alphaproteobacterial …

The Archaea occupy a key position in the Tree of Life, and are a major fraction of microbial
diversity. Abundant in soils, ocean sediments and the water column, they have crucial roles …

The eocyte hypothesis, in which Eukarya emerged from within Archaea, has been boosted
by the description of a new candidate archaeal phylum,“Lokiarchaeota”, from metagenomic …

Trace metals are inorganic elements that are required for all organisms in very low
quantities. They serve as cofactors and activators of metalloproteins involved in a variety of …

Translation elongation is a key step of protein synthesis, during which the nascent
polypeptide chain extends by one amino acid residue during one elongation cycle. More …

Selenium is a fascinating element that has a long history, most of which documents it as a
deleterious element to health. In more recent years, selenium has been found to be an …

Thorarchaeota are a new archaeal phylum within the Asgard superphylum, whose ancestors
have been proposed to play possible ecological roles in cellular evolution. However, little is …

Elucidating the diversity of the Archaea has many important ecological and evolutionary
implications. The Asgard superphylum of the archaea, described recently from metagenomic …