Table 1.

A list of preferred homo- and heterochiral associations in mixtures of protein sequence enantiomers.

system	structure	preference
poly L + D-Lysine	α-helix	opposite 6
self-replicating peptides	α-helix	like 7
membrane peptides	α-helix	both 8
hydrophobic dipeptides	β-sheet	like 9
ambidextrous peptides	α-helix	opposite 10
enzyme + substrate	α/β-fold	like 11
racemic crystals	various	both 12