| CD 3254RXRα agonist,potent and selective |

Sample solution is provided at 25 µL, 10mM.
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Cell Stem Cell.2017 Nov 20. pii: S1934-5909(17)30375-2.Quality Control & MSDS
- View current batch:
- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure


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| Cas No. | 196961-43-0 | SDF | Download SDF |
| Chemical Name | (E)-3-(4-hydroxy-3-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydronaphthalen-2-yl)phenyl)acrylic acid | ||
| Canonical SMILES | OC1=CC=C(/C=C/C(O)=O)C=C1C2=C(C)C=C3C(C)(C)CCC(C)(C)C3=C2 | ||
| Formula | C24H28O3 | M.Wt | 364.48 |
| Solubility | Soluble in DMSO | Storage | Store at -20°C |
| Physical Appearance | A crystalline 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. | ||
CD3254 is a potent and selective agonist of Retinoid X receptors (RXRα).
Retinoid X receptors (RXRs) are nuclear receptors that act as ligand-dependent transcription factors and function as the homodimer or as heterodimers with other nuclear receptors, such as retinoic acid receptors (RARs), peroxisome proliferator-activated receptors (PPARs), or liver X receptors (LXRs). RXR plays essential roles in the regulation of glucose metabolism, lipid metabolism and immune response. Retinoid X receptors (RXRs) contains three family members including RARα, RARβ or RARγ receptors. RXRα belongs to the NR2B nuclear receptor family and primarily expressed in the liver, intestines, kidneys, and epidermis.
CD3254 and its’ analogue bexarotene have been reported as a treatment for cutaneous T-cell lymphoma (CTCL), despite the fact that treatment with CD3254 can evoke reactions by disturbing other RXR-heterodimer receptor pathways. Of the seven displayed novel exacerbates, all analogs animate RXR-controlled translation in mammalian 2 hybrid and RXRE-interceded tests, have equivalent or hoisted natural action in view of EC50 profiles, and hold comparative or enhanced apoptotic movement in CTCL assays contrasted with CD3254. Every single novel compound show selectivity for RXR and insignificant hybrid onto the retinoic corrosive receptor (RAR) contrasted with all-trans-retinoic corrosive, with select analogs likewise decreasing hindrance of other RXR-subordinate pathways (e.g., VDR-RXR) [1].
In vivo, CD3254 induced the phenotypes of malformations after 5 days exposure at low concentration (20 μg/l) to those after the 1st d exposure at high concentrations (50 and 100 μg/L) [2].
References:Modeling, synthesis, and biological evaluation of potential retinoid X receptor (RXR) selective agonists: novel analogues of 4-[1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydro-2-naphthyl)ethynyl]benzoic acid (bexarotene) and (E)-3-(3-(1,2,3,4-tetrahydro-1,1,4,4,6-pentamethylnaphthalen-7-yl)-4-hydroxyphenyl)acrylic acid (CD3254). J Med Chem. 2013 Nov 14;56(21):8432-54. doi: 10.1021/jm4008517. Epub 2013 Nov 1.Divergent teratogenicity of agonists of retinoid X receptors in embryos of zebrafish (Danio rerio). Ecotoxicology. 2012 Jul;21(5):1465-75. doi: 10.1007/s10646-012-0900-9. Epub 2012 Apr 10.
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tRNA不是一条直的单链,而是弯曲的,呈现一个三叶草的形状。在弯曲的部位,tRNA自己的碱基跟自己的碱基互补配对连起来,碱基对中存在氢键。
其他的RNA一般为单链不存在氢链,但双链的由于碱基互补配对存在氢键。
探针就是DNA弹针。用于检测特定的DNA片段。
基因探针,即核酸探针,是一段带有检测标记,且顺序已知的,与目的基因互补的核酸序列(DNA或RNA)。基因探针通过分子杂交与目的基因结合,产生杂交信号,能从浩翰的基因组中把目的基因显示出来。根据杂交原理,作为探针的核酸序列至少必须具备以下两个条件:①应是单链,若为双链,必须先行变性处理。②应带有容易被检测的标记。它可以包括整个基因,也可以仅仅是基因的一部分;可以是DNA本身,也可以是由之转录而来的RNA。
进行分子突变需要大量的探针拷贝,后者一般是通过分子克隆(molecular cloning)获得的。克隆是指用无性繁殖方法获得同一个体、细胞或分子的大量复制品。当制备基因组DNA探针进,应先制备基因组文库,即把基因组DNA打断,或用限制性酶作不完全水解,得到许多大小不等的随机片段,将这些片段体外重组到运载体(噬菌体、质粒等)中去,再将后者转染适当的宿主细胞如大肠肝菌,这时在固体培养基上可以得到许多携带有不同DNA片段的克隆噬菌斑,通过原位杂交,从中可筛出含有目的基因片段的克隆,然后通过细胞扩增,制备出大量的探针。
为了制备cDNA 探针,首先需分离纯化相应mRNA,这从含有大量mRNA的组织、细胞中比较容易做到,如从造血细胞中制备α或β珠蛋白mRNA。有了mRNA作模板后,在逆转录酶的作用下,就可以合成与之互补的DNA(即cDNA),cDNA与待测基因的编码区有完全相同的碱基顺序,但内含子已在加工过程中切除。
寡核苷酸探针是人工合成的,与已知基因DNA互补的,长度可从十几到几十个核苷酸的片段。如仅知蛋白质的氨基酸顺序量,也可以按氨基酸的密码推导出核苷酸序列,并用化学方法合成。
二:主要功能:①运输功能②在逆转录作用中作为合成互补链DNA链的引物。③在细菌细胞壁、叶绿素、脂多糖和氨酰磷脂酰甘油的合成中都与某些tRNA的参与有关。
tRNA的二级结构:单链内某些区域靠氢键配对形成局部双链,并折叠形成其二级结构-三叶草型结构
三级结构是在二级结构基础上进一步折叠形成,呈“倒L”型。
的问题在于使siRNA导入细胞,
将sirna导入细胞内常见的方法是
将靶向特定基因的大约21碱基长短的双链 siRNAs small interfering RNAs。
或者是45 50 mer的发夹结构 RNA 转染到细胞。
此外通过质粒表达siRNAs 同样可以抑制特定基因的表达。
各种系统都可以使用,AlleleID7.0没搞的定
本软件只作为学习研究之用,研究完后马上删除,支持正版。。。
感谢ddd198599及其他司机的信息及启发
http://www.stemcell8.cn/thread-20673-1-1.html
AlleleID6破解版.rar(44952.85k)
我是这样进行预测的:在“SearchMode:”中选择“rRNAscanonly:”,在“sorce”中选择“mito/chloroplast”,粘贴序列,运行程序。得到了21个tRNA,而鱼中应该是22个tRNA,我觉得很奇怪,在“SearchMode:”和“rRNAscanonly:”中进行其它的设置,都不能得到22个tRNA.
我看的一篇文献“CompletemitochondrialDNAsequenceoftheJapanese
flyingfishCypselurushiraii”中也是说22个tRNA,但是我把文章提交的序列(Genbank号为AB182653.)拿到网上提交,只有21个tRNA,我觉得很奇怪。
不知道是怎么回事?请高手指点,那个软件好像是比较权威的。

