Propidium Iodide (PI) 是一种细胞核染色试剂，可染色 DNA。Propidium Iodide 是一种溴化乙啶的类似物，在嵌入双链 DNA 后释放红色荧光。Propidium Iodide 不能通过活细胞膜，但却能穿过破损的细胞膜而对核染色。

Diethy-pythiDC 是一种胶原蛋白脯氨酰 4-羟化酶抑制剂。

The peptide region containing residues 390-404 in Activated Protein C (APC) is essential for anticoagulant activity and is available for interaction with antibodies or with other proteins, such as the macromolecular substrates Factors Va or VIIIa. APC regulates blood coagulation by proteolytic inactivation of the blood coagulation cofactors Va and VIIIa.