Scientists may be able to add capabilities gradually instead of rebuilding life's operating system all at once.

The highly conserved CCA end sequence of tRNAs has been shown to be less critical than expected, enabling a more tunable ...

A TOTALLY new genetic code has been devised, along with machinery that could make it a biological reality. It’s an advance that means living cells could be persuaded to make proteins with properties ...

I wonder if the pre-LUCA ribosome itself might have been radically different before we fixed on 20 amino acids? Obviously the protein scaffolding would be different, but also it could afford to be a ...

Despite awe-inspiring diversity, nearly every lifeform—from bacteria to blue whales—shares the same genetic code. How and when this code came about has been the subject of much scientific controversy.

By STEPHANIE DUTCHEN / Harvard Medical School Communications At a glance: A new tool allows researchers to design and produce ...

Scientists have been hard at work for more than 20 years to instruct biological systems, such as E. coli cells, to produce ...

The findings, which detail how amino acids shaped the genetic code of ancient microorganisms, shed light on the mystery of how life began on Earth. "You see the same amino acids in every organism, ...