To overcome the inherent challenge of translation termination interference caused by stop codon reprogramming in mammalian cells, researchers from Peking University led by Chen Peng from College of ...

Unexpected genetic twist: An Oxford pond protist was found to repurpose two universal stop codons, coding for lysine and glutamic acid instead. Why it matters: The discovery challenges the 'universal' ...

Living organisms synthesize a staggering variety of proteins by combining 20 amino acids into chains of any length and order. In the past, to expand protein diversity beyond the scope of these 20 ...

The DNA of nearly all life on Earth contains many redundancies, and scientists have long wondered whether these redundancies served a purpose or if they were just leftovers from evolutionary processes ...

Scientists trying to engineer biologic molecules with new functions have long felt limited by the 20 amino-acid building blocks. Researchers are working to develop ways of putting new building ...

Liquid culture flasks of bacteria grown in yellow broth covered with tinfoil on a shaker. Bacterial strains needed to be tested every step of the way to create the highly compressed genome. Credit: ...

Genes are the building blocks of life, and the genetic code provides the instructions for the complex processes that make organisms function. But how and why did it come to be the way it is? "We find ...

Genetic rule broken: Researchers found ciliates that treat stop codons as amino acid instructions, defying the universal genetic code. Two remarkable cases: Condylostoma magnum reassigns all three ...