Ars Technica

Researchers try to cut the genetic code from 20 to 19 amino acids

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 ...
SpaceNews

Expanding the genetic code–TSRI scientists synthesize 21-amino-acid bacterium

Scientists at The Scripps Research Institute (TSRI) report in an upcoming article in the Journal of the American Chemical Society their synthesis of a form of the bacterium Escherichia coli with a ...
Popular Mechanics

Scientists Say We May Have Been Wrong About the Origin of Life

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: A peer-reviewed analysis ...
Ars Technica

Researchers try to cut the genetic code from 20 to 19 amino acids

The genetic code is central to life. With minor variations, everything uses the same sets of three DNA bases to encode the same 20 amino acids. We have discovered no major exceptions to this, leading ...