All proteins are made of basic secondary structure units, either α-helix or β-sheets, determined by hydrogen bonding between the amino acids within a peptide chain. On a larger scale, structures are ...

Doubly stapled α-helix consisting only of achiral amino acids. Its one-handed form can be isolated because the interconversion between the right- and left-handed forms is almost completely suppressed.

Modeling indicates that secondary structures of RNA in the genes encoding the Nsp4 and Nsp16 proteins of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are different from other ...