Studies on the conformation of amino acids IX. Conformation of butyl, seryl, threonyl, cysteinyl and valyl residues in a dipeptide unit

Influence of D and L amino-acid residues

Influence of D and L amino-acid residues on the conformation of peptides in solution: A carbon-13 nuclear magnetic resonance study of cyclo(prolyl-leucyl)

✍ Roxanne Deslauriers; Z. Grzonka; Roderich Walter 📂 Article 📅 1976 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 375 KB 👁 2 views

## Abstract The ^13^C chemical shifts and spin‐lattice relaxation times are reported for __cyclo__(L‐Pro‐L‐Leu) and __cyclo__(L‐Pro‐D‐Leu). The chemical shifts of the D and L leucyl residues in the cyclic peptides differ from each other by 1.8 and 3.6 parts per million for the α and β carbons, resp