Tripeptide RFY with blood pressure lowering function and application thereof

The invention discloses a tripeptide RFY. The amino acid sequence of the tripeptide is as follows: arg-phe-tyr. The invention also discloses an application of the tripeptide RFY in the preparation of antihypertensive drugs, particularly an application of the tripeptide RFY in the preparation of drugs used as angiotensin-converting enzyme (ACE) inhibitory peptides, and further discloses an application of the tripeptide RFY in the preparation of antihypertensive drugs, particularly an application of the tripeptide RFY in the preparation of drugs used as angiotensin-converting enzyme (ACE) inhibitory peptides. The tripeptide RFY provided by the invention can inhibit the activity of ACE, and can be used for preparing antihypertensive drugs as ACE inhibitors. 本发明公开了一种三肽RFY，该三肽的氨基酸序列为：arg-phe-tyr。本发明还同时公开了该三肽RFY在制备降血压药物的应用，特别是制备作为血管紧张素转化酶（angiotensin-Іconverting enzyme，ACE）抑制肽的药物中的应用。本发明的三肽RFY可以抑制ACE的活性，可以用于制备作为ACE抑制剂的降血压药物。