PD-1/PD-L1-IN-9;2628506-54-5;1

Alkaline Lysis and CsCl Purification of BAC DNA for Transgenic Production.

4.  Wash cells by resuspending in 25 mls of ICE COLD 10mM NaCl (0.1ml 5M into 50ml final) per 250 ml bottle, pellet at 3800 rpm for 10minutes at 4°C. 5.  Decant supernatant, (freezing the pellet at minus 80°C overnight at this step increases cell

Stripping Western Blots

. 4mls/10cm plate), add fresh trypsin/ EDTA (e.g. 1ml/10cm plate), and incubate at 37oC as appropriate to loosen cells (e.g. 1-2min for NIH3T3, 2-5min for MDCK). 3. Add 4 volumes of soybean trypsin inhibitor (1mg/ml in serum-free medium) e.g. 4mls

常用细胞凋亡检测方法（图）

(Hoechst 33258), DAPI。三种种染料与DNA的结合是非嵌入式的，主要结合在DNA的A-T碱基区。紫外光激发时发射明亮的蓝色荧光。Hoechst是与DNA特异结合的活性染料，储存液用蒸馏水配成1mg/ml的浓度，使用时用PBS稀释，终浓度为10 ug/ml。DAPI为半通透性，用于常规固定细胞的染色。储存液用蒸馏水配成1mg/ml的浓度，使用终浓度一般为10 ug/ml。结果评判：细胞凋亡过程中细胞核染色质的形态学改变分为三期：Ⅰ期的细胞核呈波纹状（rippled）或呈折缝样（creased