The N-terminal thrombin receptor peptide H-Ser-Phe-Leu-Leu-Arg-Asn-Pro-Asn-Asp-Lys-Tyr-Glu-Pro-Phe-OH (1) fully activates the thrombin receptor with an EC(50) Of 10 mu M Structural features in the tetradecapeptide which are responsible for receptor activation have been elucidated. Agonist potency has been enhanced 1000-fold with the design of the shortened peptide H-Ala-Phe(p-F)-Arg-Cha-HArg-Tyr-NH2 (56). This analog exhibits an EC(50) of 0.01 mu M and is the most potent agonist for receptor activation reported to date. The monoiodinated derivative H-Ala-Phe(p-F)-Arg-Cha-HArg-Tyr(3-I)-NH2 (59) exhibits an EC(50) of 0.03 mu M, a level sufficient for development of a radioligand.
Solid-Phase Synthesis of Arginine-Containing Peptides by Guanidine Attachment to a Sulfonyl Linker
作者:H. Marlon Zhong、Michael N. Greco、Bruce E. Maryanoff
DOI:10.1021/jo970736n
日期:1997.12.1
Development of a Potent Thrombin Receptor Ligand
作者:Dong-Mei Feng、Daniel F. Veber、Thomas M. Connolly、Cindra Condra、Mei-Jy Tang、Ruth F. Nutt
DOI:10.1021/jm00020a029
日期:1995.9
The N-terminal thrombin receptor peptide H-Ser-Phe-Leu-Leu-Arg-Asn-Pro-Asn-Asp-Lys-Tyr-Glu-Pro-Phe-OH (1) fully activates the thrombin receptor with an EC(50) Of 10 mu M Structural features in the tetradecapeptide which are responsible for receptor activation have been elucidated. Agonist potency has been enhanced 1000-fold with the design of the shortened peptide H-Ala-Phe(p-F)-Arg-Cha-HArg-Tyr-NH2 (56). This analog exhibits an EC(50) of 0.01 mu M and is the most potent agonist for receptor activation reported to date. The monoiodinated derivative H-Ala-Phe(p-F)-Arg-Cha-HArg-Tyr(3-I)-NH2 (59) exhibits an EC(50) of 0.03 mu M, a level sufficient for development of a radioligand.