1. Therefore, the characteristic tripeptide sequence Arg-Gly-Asp (RGD) has been attracting much attention of investigators.
   因此，关于这个特有的RGD三肽序列的研究吸引了许多的学者的关注。
2. Tripeptide aldehyde. Reversible competitive inhibitor of serine and cysteine proteases. Inhibits also phospholipase D and C activation in rat hepatocytes.
   三肽醛。丝氨酸和半胱氨酸蛋白酶可逆的竞争性抑制剂。也抑制鼠肝细胞中磷酸酯酶D和C的活化。
3. The tripeptide Arginyl-Glycyl-Aspartic acid (RGD) is a common cell recognition site of many adhesive proteins contained in extracellular matrices and in the blood .
   RGD三肽（精氨酰-甘氨酰-天冬氨酸）序列是细胞外基质及血液中的许多粘附蛋白共有的细胞识别位点。

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