Complex life, eukaryotes, traces its origins to a shared ancestor among the Asgard archaea, reshaping our understanding of ...

Pyrrolysine is an important component of methyltransferase enzymes, which the archaea use to metabolize methylamine in the environment. “The need for that metabolism and availability of the machinery ...

In the late 1970s, a new branch was added to the tree of life, and archaea joined bacteria and eukarya, as domain classifications. Archaea and bacteria are both simple forms of cells called ...

The beauty of the DNA code is that organisms interpret it unambiguously. Each three-letter nucleotide sequence, or codon, in ...

Hyperthermophilic archaea are true survival experts. They thrive in boiling hot springs and deep-sea vents—environments ...

Solving a decades-old mystery, Stanford researchers have discovered proteins that enable hardy microbes called archaea to toughen up their membranes when waters are overly warm. Finding these proteins ...

Let’s say you’ve discovered a new bacterium or archaea and want to give it a name so that it can be classified and placed on the appropriate branch of the tree of life. According to the International ...

A microorganism that is a proposed relative of our cellular ancestors has been grown successfully in the laboratory. Its internal architecture offers clues to the early evolution of eukaryotic cells.

The genetic code is the recipe for life, and provides the instructions for how to make proteins, generally using just 20 ...