An engineered E. coli strain survived after one amino acid was designed out of many of its ribosomal proteins—an early test ...

Amino acids are molecules fundamental to living organisms because they combine to build proteins, the workhorses of the cell. One metabolic pathway that produces amino acids involves transamination, a ...

Manganese dioxide can convert amino acids into hydrogen cyanide (HCN) without requiring methane, solving a long-standing ...

How did the earliest life on Earth build complex biological machinery with so few tools? A new study explores how the simplest building blocks of proteins—once limited to just half of today's amino ...

Most hypotheses suggest that earlier forms of life had partial genetic codes and used fewer than 20 amino acids. To test ...

Fatigue is not just about “low energy.” It is the result of multiple systems slowing down at once, including neurotransmitter ...