Human PS (Phosphatidylserine)

Quantification of Selective Phosphatidylserine Oxidation During Apoptosis

of phospholipid-dependent signaling. Phosphatidylserine (PS), in particular, is implicated in the regulation of macrophage-dependent clearance of apoptotic cell “corpses” in a pathway probably mediated by selective oxidation and translocation of PS in the plasma

Quantitative Method of Measuring Phosphatidylserine Externalization During Apoptosis Using Electron Paramagnetic Resonance Spectroscopy and Annexin-Co

We present here the application of a novel assay that measures the absolute amount of phosphatidylserine (PS) externalized on the surface of cells. Although the assay is based on the same annexin binding principle as the fluorescent flow

Annexin V 凋亡试剂盒常见问题

Q：Annexin V 凋亡检测试剂盒的原理是什么？ A：Annexin V 是一种钙离子依赖性磷脂结合蛋白，与磷脂酰丝氨酸 PS 有高度亲和力，可通过细胞外侧暴露的 PS 与凋亡早期细胞胞膜结合，将 Annexin V 标记荧光染料如 FITC 利用流式细胞仪或荧光显微镜可检测细胞凋亡。 碘化丙啶(Propidium Iodide, PI)或 7-AAD 可与双链 DNA 特异性结合，并产生强烈的荧光，正常情况下无法透过细胞膜。由于凋亡晚期或坏死细胞膜丧失完整性，核染料 PI 或 7-AAD