H-Pro-Thr-Glu-Phe-p-nitro-Phe-Arg-Leu-OH

H-Pro-Thr-Glu-Phe-p-nitro-Phe-Arg-Leu-OH is a water-soluble polypeptide that serves as a substrate for the enzymes cathepsin D, pepsin, and pepsinogen, with potential applications in biochemical analysis [1] [2].

CC(C)C[C@H](NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](Cc1ccc(cc1)N(=O)=O)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@@H](NC(=O)[C@@H]1CCCN1)[C@@H](C)O)C(O)=O