Whatever the information—carrying molecule is made of, and it is presumably nucleic acid, it will require protection which could be provided by a host protein, PrP. This is the essence of the ...

Researchers have found an ancient protein fold that might explain how life’s basic building blocks became the complex systems ...

Each protein is a molecule made up of different combinations ... Amino acids can also be basic, like lysine, or acidic, like glutamic acid. The sequence and interactions between the side chains ...

The cloverleaf structure is formed by the folding of the single-stranded tRNA molecule, which is typically 73-90 ... fundamental role of tRNA in the essential process of protein synthesis. The basic ...