The subcellular localization was analyzed by fluorescence microscope and confocal. The fluorescence of PF40-GFP fusion protein was detected mainly in the ER, demonstrating that PF40 was mainly localized in the ER.

• 用荧光显微镜观察,发现PF40的亚细胞定位是在围绕核的内质网以及胞质网格状内质网上。