Peptide E

O=C(NCC(NCC(N[C@@H](CC1=CC=CC=C1)C(N[C@@H](CCSC)C(N[C@@H](CCCNC(N)=N)C(N[C@@H](CCCNC(N)=N)C(N[C@@H](C(C)C)C(NCC(N[C@@H](CCCNC(N)=N)C(N2[C@@H](CCC2)C(N[C@@H](CCC(O)=O)C(N[C@@H](CC3=CNC4=CC=CC=C34)C(N[C@@H](CC5=CNC6=CC=CC=C56)C(N[C@@H](CCSC)C(N[C@@H](CC(O)=O)C(N[C@@H](CC7=CC=C(C=C7)O)C(N[C@@H](CCC(N)=O)C(N[C@@H](CCCCN)C(N[C@@H](CCCNC(N)=N)C(N[C@@H](CC8=CC=C(C=C8)O)C(NCC(NCC(N[C@@H](CC9=CC=CC=C9)C(N[C@@H](CC(C)C)C(O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)[C@H](CC%10=CC=C(C=C%10)O)N

[1]E P Heimer, et al. Synthesis of adrenal peptide E and some of its biological activities. Arch Biochem Biophys. 1983 Sep;225 (2) :518-24.|[2] R Quirion, et al. Peptide E and other proenkephalin-derived peptides are potent kappa opiate receptor agonists. Peptides. 1983 Jul-Aug;4 (4) :445-9.