- D-Ala, D-Phe, D-Met, D-Pro, D-Leu, D-Val, Beta-Ala, pGlu, Hyp, D-Ile
- D-Arg, D-Asp, D-Cys, D-Glu, D-Thr, D-Asn, D-Gln, D-Ser,D-His, D-Trp, D-Lys, D-Tyr, D-Orn, (D)1-Nal, (D)2-Pal, (D)4-Cl-Phe, Orn, Abu, Aib, Nva, Nle, Hse, Hcy, Mpa, Pen
- N-Methyl amino acid (Ala,Phe,Leu,Ile,Val,Gly,Met)
