A stereochemical switch in the aDrs model system, a candidate for a functional amyloid

► Residue 2 in frog skin peptide aDrs can be enzymatically converted to a d-amino acid. ► The d-amino acid does not affect the kinetic parameters of aggregation. ► The diastereomers assemble to amyloids with different superstructural architectures. ► pH-triggered, melting of the amyloid is markedly altered by the d-amino acid.