This 3-D arrangement of amino acids optimized to catalyze peptide bond hydrolysis has clearly developed at least twice in evolution, an example of convergent evolution at the molecular level.

Peptide bond formation is one of the key chemical ... JAXA invest great resources to acquire new fundamental insights. For example, recent Hayabusa2 and OSIRIS-REx asteroid sampling missions ...

This longevity is particularly surprising considering the relatively short half-life (just 500 years) of peptide bonds — the ...