| BQU57Derivative of RBC8 |
Sample solution is provided at 25 µL, 10mM.
Nature.2017 Jan 19;541(7637):417-420.
Nature.2018 Nov;563(7731):407-411.Nature.2018 Jun 13.Nature.2018 Jun 27.Nature.2018 Mar 29;555(7698):673-677.Nature.2017 Sep 7;549(7670):96-100.Nature.2016 Apr 21;532(7599):398-401.
Science.2016 Aug 5;353(6299)594-8Nat Nanotechnol.2017 Dec;12(12):1190-1198.Nature Biotechnology.2017 Jun;35(6):569-576Nat Med.2018 Sep 17.Cell.2018 Dec 21. pii: S0092-8674(18)31561-7.Cell.Available online 25 October 2018.Cell.2018 Sep 27. pii: S0092-8674(18)31183-8.Cell.2018 Jun 28;174(1):172-186.e21.Cell.2018 Feb 22;172(5):1007-1021.e17.Cell.2017 Nov 30;171(6):1284-1300.e21.Cell.2017 Aug 17. pii: S0092-8674(17)30869-3.Cell.2017 Jul 13;170(2):312-323Nat Med.2018 Jan 29.Nat Med.2017 Nov;23(11):1342-1351.Cell.2017 Apr 6;169(2):286-300.Cell.2015 Aug 27;162(5):987-1002.Cell.2015 Feb 12;160(4):729-44.Nature Medicine.2017 Apr;23(4):493-500.Cancer Cell.2018 May 14;33(5):905-921.e5.Cancer Cell.2018 Apr 9;33(4):752-769.e8.Cancer Cell.2018 Mar 12;33(3):401-416.e8.Cancer Cell.2017 Aug 14;32(2):253-267.e5.Nat Methods.2018 Jul;15(7):523-526.Cell Stem Cell.2018 May 3;22(5):769-778.e4.Cell Stem Cell.2017 Nov 20. pii: S1934-5909(17)30375-2.Quality Control & MSDS
- View current batch:
- Purity = 98.03%
- COA (Certificate Of Analysis)
- HPLC (Retest)
- NMR (Nuclear Magnetic Resonance)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure
| Kinase experiment [1]: | |
RalA ELISA. | This assay used J82 human bladder cancer cells that stably expressed Flag-tagged RalA. The Flag epitope tag greatly increased the sensitivity and dynamic range of the assay compared with using Ral-specific antibodies for detection. Cells were treated with each of the 88 compounds (tested at 50 mM), and then extracts were prepared. The binding of Flag–RalA to recombinant RALBP1 that had been immobilized in 96-well plates was quantified. In this assay, RalA binding reflects Ral’s GTP loading and capacity for effector activation. |
| Cell experiment [1]: | |
Cell lines | Human lung cancer cell lines (H2122, H358) |
Preparation method | Soluble in DMSO > 10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months. |
Reaction Conditions | 2-4 weeks at 37oC |
Applications | BQU57 acts specifically through the GDP-bound form of Ral proteins. Ral-dependent lines H2122 and H358 are sensitive to treatment with BQU57. BQU57 treatment exhibits no further inhibition of colony formation after RAL knockdown. |
| Animal experiment [1]: | |
Animal models | H2122 tumor xenografts (median size, 250 mm3) |
Dosage form | Single intraperitoneal injection of BQU57 (10, 20 and 50 mg per kg body weight) |
Applications | BQU57 shows a dose-dependent (10, 20 and 50 mg per kg body weight per day) growth inhibition in the mice. Both RalA and RalB were blocked by BQU57. |
Other notes | Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
References: 1. Yan C, Liu D, Li L et al. Discovery and characterization of small molecules that target the GTPase Ral. Nature. 2014 Nov 20;515(7527):443-7. | |
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| Cas No. | 1637739-82-2 | SDF | Download SDF |
| Synonyms | N/A | ||
| Chemical Name | 6-amino-1,3-dimethyl-4-(4-(trifluoromethyl)phenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile | ||
| Canonical SMILES | CC1=NN(C)C(OC(N)=C2C#N)=C1C2C3=CC=C(C(F)(F)F)C=C3 | ||
| Formula | C16H13F3N4O | M.Wt | 334.30 |
| Solubility | ≥16.55mg/mL in DMSO | Storage | Store at -20°C |
| Physical Appearance | A solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
BQU57 is a derivative of RBC8. It show selectivity for Ral relative to the GTPases Ras and RhoA and inhibit tumour xenograft growth. The binding of BQU57 to RalB–GDP was with a dissociation constant (Kd) of 7.760.6 mM by using isothermal titration calorimetry (ITC). It was similar to the results from surface plasmon resonance (SPR), which had a Kd value of 4.761.5 mM 1.
RBC8 or BQU57 can effectively inhibited the colony formation in soft agar of the Ral-dependent lines H2122 and H358, but not H460 or Calu-6. The IC50 value of RBC8 was 3.5 mM in H2122 cells and 3.4 mM in H358 cells; and the IC50 value of BQU57 was 2.0 mM in H2122 cells and 1.3 mM in H358 cells. RBC8 or BQU57 treatment showed no further inhibition of colony formation after RAL knockdown 1.
RBC8 and BQU57 acted specifically through the GDP-bound form of Ral proteins. RBC8 and BQU57 inhibited both Ral A and Ral B activation in both the H2122 and H358 cell lines by a Ral pull-down assay using RALBP1-bound agarose beads 1.
The inhibition of Ral activity and tumour growth by these compounds were evaluated in human lung cancer xenografts in mice. RBC8 and BQU57 showed good properties in vivo. RBC8 and BQU57 entry into tumour tissue 3 h after dosing, and were detectable in tumour tissue 1. BQU57 (10, 20 and 50mg per kg bodyweight) was intraperitoneal injected into H2122 tumour xenografts, and the activation of Ral in tumour extracts was analysed in RALBP1 pull-down assays. Both RalA and RalB were inhibited by RBC8 and BQU57. But no inhibition of Ras or RhoA activity was happened 1.
References:1. Yan C, Liu D, Li L et al. Discovery and characterization of small molecules that target the GTPase Ral. Nature. 2014 Nov 20;515(7527):443-7.
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氯仿萃取RNA
异丙醇沉淀RNA
酒精清洗
－－本来，看好丹麦Exiqon公司，Qiagen的两个试剂盒，无奈经费有限，这两个盒子很不错，价格也不菲，有米的兄弟姐妹可以买。
－－另外查询到国产上海诺伦公司的血液(血清/血浆)总RNA抽提试剂盒－－广州这边用的人不多，不知道上海那边的兄弟姐妹有什么经验？
－－－还有，北京康为世纪公司的游离RNA（血清血浆尿液）提取试剂，货号：CW2281，也比较便宜，但是俺心中也没有底，请大家给点意见。
－－－已经订购了LIFETECHNOLOGY的TrizolLS专门提取体液RNA的试剂（100毫升2000元人民币，也不菲），准备预试验看看提取RNA的质量。(Lifetechnology公司的AM1556也不错，但是也不便宜，每个盒子40次/2590元）
－－－－但是还是希望有试剂盒，比较简单，快捷，最重要的是样本量太大，要分离400份左右的血清。
TRIZOL的主要成分是苯酚。苯酚的主要作用是裂解细胞，使细胞中的蛋白，核酸物质解聚得到释放。苯酚虽可有效地变性蛋白质，但不能完全抑制RNA酶活性，因此TRIzol中还加入了8－羟基喹啉、异硫氰酸胍、β-巯基乙醇等来抑制内源和外源RNase（RNA酶）。
TRIZOL是从细胞和组织中提取总RNA的即用型试剂，在样品裂解或匀浆过程中，TRIZOL 能保持RNA完整性。加入氯仿后，溶液分为水相和有机相，RNA在水相中。取出水相，用异丙醇可沉淀回收RNA。
※0.1%的8－羟基喹啉可以抑制RNase，与氯仿联合使用可增强抑制作用。
※异硫氰酸胍属于解偶剂，是一类强力的蛋白质变性剂，可溶解蛋白质并使蛋白质二级结构消失，导致细胞结构降解，核蛋白迅速与核酸分离。
※β-巯基乙醇的主要作用是破坏RNase蛋白质中的二硫键。
TRIZOL是一种新型总RNA抽提试剂，可以直接从细胞或组织中提取总RNA。其含有苯酚、异硫氰酸胍等物质，能迅速破碎细胞并抑制细胞释放出的核酸酶。TRIZOL在破碎和溶解细胞时能保持RNA的完整性，因此对纯化RNA及标准化RNA的生产十分有用。
基本特点
Trizol试剂可以快速提取人、动物、植物、细菌不同组织的总RNA，该方法对少量的组织（50-100 mg）和细胞（5×106）以及大量的组织（≥1 g）和细胞（>107）均有较好的分离效果。TRIZOL试剂操作上的简单性允许同时处理多个的样品。所有的操作可以在一小时内完成。TRIZOL抽提的总RNA能够避免DNA和蛋白的污染。故而能够作RNA 印迹分析、斑点杂交、poly(A)+ 选择、体外翻译、RNA酶保护分析和分子克隆。并且利用DNA、RNA和蛋白质在不同溶液中的溶解性质，可以通过分层分别将不同层中的RNA（上层）、DNA（中层）、蛋白质（下层）分离纯化出来，效率极好。
Trizol试剂能促进不同种属不同分子量大小的多种RNA的析出。例如，从大鼠肝脏抽提的RNA琼脂糖凝胶电泳并用溴化乙啶染色，可见许多介于7 kb和15 kb之间不连续的高分子量条带，（mRNA和hnRNA成分）两条优势核糖体RNA条带位于~5 kb （28S）和~2 kb （18S），低分子量RNA介于0.1 和 0.3 kb之间 (tRNA,5S）。当抽提的RNA用TE稀释时其A260/A280比值≥1.8
TRIZOL
http://baike.baidu.com/view/533842.htm
Trizol法和试剂盒提取组织中的RNA，哪个方法更可靠和精确呢？谢谢！
这里有关于miRNA专题报道，可以看看
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