三肽

三肽（英语：Tripeptide）是由三个氨基酸经肽键连接而成的肽。

三肽的例子有：

• 
  Eisenin（pGlu-Gln-Ala-OH） is a peptide with immunological activity that is isolated from the Japanese marine alga, Eisenia bicyclis, which more commonly is known as, Arame
  


• 
  GHK-Cu（glycyl-L-histidyl-L-lysine） is a human copper binding peptide with wound healing and skin remodeling activity, which is used in anti-aging cosmetics and more commonly referred to as copper peptide
  


• 
  谷胱甘肽（γ-L-Glutamyl-L-cysteinylglycine）是动物细胞中的一种重要抗氧化剂


• 
  异亮氨酸-脯氨酸-脯氨酸（IPP） found in milk products, acts as an ACE inhibitor


• 
  亮抑蛋白酶肽（N-acetyl-L-leucyl-L-leucyl-L-argininal） is a 蛋白酶抑制剂 that also acts as an inhibitor of 钙蛋白酶
  


• 
  促黑素抑释素（prolyl-leucyl-glycinamide） is a peptide hormone produced in the 下丘脑 that inhibits the release of melanocyte-stimulating hormone（MSH）


• 
  视晶酸（L-γ-glutamyl-L-α-aminobutyryl-glycine） is an analogue of glutathione isolated from crystalline lens
  


• 
  Norophthalmic acid（y-glutamyl-alanyl-glycine） is an analogue of glutathione（L-cysteine replaced by L-alanine） isolated from crystalline lens
  


• 
  促甲状腺素释放激素（TRH, thyroliberin or protirelin）（L-pyroglutamyl-L-histidinyl-L-prolinamide） is a 肽类激素 that stimulates the release of 促甲状腺素 and 催乳素 by the 腺垂体
  

另见

• 二肽


• 四肽

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