Disclosed are isolated, unnatural polypeptides containing cyclically-constrained &bgr;-amino acid residues and cyclically-constrained &ggr;-amino acid residues. The compounds are unnatural and because they contain rotationally constrained residues that are not amenable to enzymatic degradation, the compounds are useful to probe protein-protein and other large molecule interactions.
本发明涉及一种含有环限制性β-
氨基酸残基和环限制性γ-
氨基酸残基的孤立、非自然
多肽。这些化合物是非自然的,因为它们含有旋转限制性残基,不易于酶降解,因此这些化合物可用于探究蛋白质-蛋白质和其他大分子相互作用。