
EGFP-rProtein APDF
Catalog Number:
E1GA1-020Amount:
200μg/200μlBackground:
The unique, high quality recombinant EGFP-rProtein A are produced in E. coli, and purified using multiple chromatographic steps (not affinity purified with human IgG). EGFP-rProtein A bind to most mammalian immunoglobulins in their Fc binding domains and therefore are ideal for immunofluorescence staining. The genetically engineered protein was expressed and purified from transformed E. coli containing only the IgG binding regions and have 6X His-tag on their N-terminus. Other domains such as cell wall binding region, albumin binding region and other non-specific binding regions have been eliminated from all these proteins to ensure the maximum specific IgG binding and maximal fluorescence.Form of Antibody:
Liquid. The product is 1 mg/ml in 10 mM Phosphate buffered saline, pH 7.4 containing, 10% glycerol and 0.1% sodium azide as preservative.Source:
Recombinant expressed in E. coliPurity:
>98% by SDS-PAGE and HPLCEndotoxin:
< 0.05="">IgG Binding:
>95%Bioburden:
No organisms detectedSpecificity/Sensitivity:
Under optimal conditions, 1 mg EGFP-rProtein A will bind approximately 5 mg IgG. Optimal binding of EGFP-rProtein A to antibodies occurs at pH 5.0 to 8.0 and can be eluted over a pH range of 2.5 to 3.0.Applications:
The protein is suitable as control reagent for EGFP expression studies or as labeling reagent. Applications include: Flow cytometers, fluorescence microscopy, and microinjection, antibody purification, etc. at 1:100 dilution. Maximum absorption wavelength at 488 nm and emission wavelength at 507 nm.Storage/Stability:
Store at -20°C. -80°C for long-term storage. Avoid exposure to light. Avoid repeated freezing and thawing.293T cells were stained with mouse anti-beta-tubulin antibody (E1C601) and detected with EGFP-rProtein A (Green).
Price:
160$
ebiomall.com






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最近开始做TUNEL染色,第一次按罗氏protocol做的,阴性对照是没有显色的。没做阳性对照。第二次、第三次做出来背景都很深,肾小管每个细胞核上都染上了棕黄色,DAB染色很快,几秒就变一片黄。具体步骤是:1烤片脱蜡至水2.蛋白酶K20ug/ML37℃10分钟3.tunel液冰上配置后加组织上,37度1h。4.pod液37℃30min5.DAB显色。在蚂蚁淘中检索后,优化了实验条件,在蛋白酶K前加了3%H2O2封闭10min,缩短了tunel液至40min。这是第三次的结果大家帮我看看
这是对照组
这是模型组
Bone Mesenchymal Stem Cells 作为一个细胞群体,还没有发现有特定细胞表面marker. 对于那些可以代表自我更新和分化的marker, 也不清楚到底要发现哪一个的表达才能确定该细胞就是BMSC。
目前常用的方法,就是采用培养,colony-forming unit-fibroblasts (CFU-F)这个方法。一般BMSC可以24-48小时贴壁。
流式细胞计数,比如STRO-1,但是一般认为STRO-1阳性的细胞更趋向于造血干细胞,和BMSC简单区别还不是很清楚。
这里有个培养分化的产品
http://www.rndsystems.com/pdf/SC020.pdf

