
Amount : | Non Profit |
The TNF-alpha Leeporter™ Luciferase Reporter cell line is a stably transfected RAW264.7 cell line which expresses Renilla luciferase reporter gene under the transcriptional control of the TNF-alpha promoter. Tumor necrosis factor-alpha (TNF-alpha) is one of the major proinflammatory cytokines and can induce systemic inflammation, apoptotic cell death, sepsis and cachexia. Dysregulation of TNF-alpha induction is often involved in various human diseases including inflammatory bowel disease, cancer and Alzheimer's disease. The TNF-alpha induction by lipopolysaccharide (LPS), the Toll-like receptor 4 (TLR4) ligand, is shown in Figure 1.
Content : | Each vial contains 2 ~ 3 x 10^6 cells in 1 ml of 90% FBS + 10% DMSO. |
Storage condition : | Immediately upon receipt, store in liquid nitrogen. |
Application:
- Monitor the TNF-alpha induction activity.
- Screen for activators or inhibitors of the TNF-alpha signaling pathway.
Culture conditions:
To passage the cells, detach cells from culture vessel with Trypsin/EDTA, add complete growth medium and transfer to a tube, spin down cells, resuspend cells and seed appropriate aliquots of cells suspension into new culture vessels. Subcultivation ration = 1:10 to 1:20 weekly.To achieve satisfactory results, cells should not be passaged over 16 times.
Functional validation:A. Response of TNF-alpha Leeporter™ – RAW264.7 cells to lipopolysaccharide (LPS).
LIMITED USE RESTRICTIONS:
THIS PRODUCT IS SOLELY FOR IN VITRO RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE.
By use of this product, user agrees to be bound by the terms of this limited use statement.
This product issolely for Internal Research Purposesandnot for Commercial Purposes. Commercial Purposes include, but are not limited to (1) use of the cell line in manufacturing; (2) use of the cell line to provide a service, information or data; (3) use of the cell line for therapeutic, diagnostic or prophylactic purposes; or (4) resale of the cell line whether or not such cell lines are resold for use in research.The buyer cannot sell, give or otherwise transfer this product to a third party.
Commercial License Agreement is available for non-research use if applicable. Please contact Abeomics (info@abeomics.com).
For Research Use Only. Not for use in diagnostic/therapeutics procedures.
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第一,血清成分复杂,最好用密理博的Montage Albumin Deplete Kit去除血清里50%的白蛋白
第二,磷酸化蛋白提取蛋白的时候,最好加入原钒酸钠,和磷酸酶抑制剂,防止蛋白脱磷酸化。
第三,不要用牛奶做封闭剂,用BSA。因为牛奶中含有磷酸化酪蛋白,防止非特异带。
第四,如果条带杂带多,而且,条带弱,可以选择millipore的signal boost,增加条带特异性,而且,增强条带的亮度。
转膜后就要区分与胶接触的一面与另一面了。话说楼主好奇的话可以跑蛋白的试试看哈。比如目的蛋白的胶用光滑面贴着胶,内参蛋白用粗糙面贴着胶一起转膜试试转膜结果看看呢。
1. 使用预染 Marker,不过分子量不是特别准;
2. 所使用的 Marker 条带与待测蛋白质带有相同的抗原表位,比如都带有 His 融合标签;
3. 可以使用普通的 Marker 转膜使用 丽春红 等染色,然后在膜上标记出 Marker 各条带的位置。
考马斯亮兰染液也可以重复用。新配的染液10分钟即可,重复3次后要染30分钟。
一抗二抗可以重复利用,但是注意要在5%milk中加入0.2% sodium azide ,并且用完以后放入4度保存,我的经验重复使用4-5次是肯定没有问题的.如果保存不当,就会污染微生物,只能丢弃.

