日本免费一区二区三区视频观看,女女互磨互喷水高潮les呻吟,gogo西西人体做爰大胆视频图,在线看免费观看日本av

歡迎進入上海起發(fā)實驗試劑有限公司!
產品展示
首頁 > 產品展示 > > TriLink BioTechnologies > ARCA (Anti Reverse Cap Analog)

ARCA (Anti Reverse Cap Analog)

描述:體外實驗的初始階段,絕大多數(shù)真核生物 mRNA 5' 端 m7G 帽結構可促進翻譯。對于絕大多數(shù) RNA,帽結構都可提高 RNA 的穩(wěn)定性,降低其對核酸外切酶降解的敏感性,并促進 mRNA 起始復合體的形成。一些具有 5' 端帽結構的原核 mRNA 也可以像真核 mRNA 一樣,能在真核生物無細胞蛋白合成體系中獲得高效翻譯。另外,還發(fā)現(xiàn)在真核生物靶 RNA 的剪切過程同樣需要帽結構。

更新時間:2018-03-03
訪問次數(shù):5469
廠商性質:代理商
詳情介紹

*也被稱為 Anti-reverse Cap Analog (ARCA) ,即抗-反向帽類似物。

概述

體外實驗的初始階段,絕大多數(shù)真核生物 mRNA 5' 端 m7G 帽結構可促進翻譯。對于絕大多數(shù) RNA,帽結構都可提高 RNA 的穩(wěn)定性,降低其對核酸外切酶降解的敏感性,并促進 mRNA 起始復合體的形成。一些具有 5' 端帽結構的原核 mRNA 也可以像真核 mRNA 一樣,能在真核生物無細胞蛋白合成體系中獲得高效翻譯。另外,還發(fā)現(xiàn)在真核生物靶 RNA 的剪切過程同樣需要帽結構。
 

用 7 甲基 G 帽結構類似物,m7G(5' )ppp(5' )G (NEB#S1404) 作為引物能在 SP6 RNA 聚合酶、T7 RNA 聚合酶和 T3 RNA 聚合酶作用下,轉錄出更多的帶帽RNA。因為轉錄時,T7 RNA 聚合酶摻入的*個堿基是 G,所以用 #S1405 或 #S1406 轉錄出帶有 A-帽結構的 RNA,就不能夠翻譯,但這對于轉染和顯微注射實驗有很好的穩(wěn)定性。Contrease 等已經建立了一套方法,以 m7G(5' )ppp(5' )G (NEB #S1404)或 m7G(5' )ppp(5' )A (NEB #S1405) 為引物,利用 E. coli RNA 聚合酶,在體外有效合成帶帽 RNA。


帽類似物有兩個3' 羥基基團使得它們可從任一方向結合到 RNA 上。而抗-反向帽類似物(ARCA)3' OMethyl-m7G(5' )ppp(5' )G (NEB #S1411) 的一個羥基被甲基化,只能以 m7G 作為*個堿基與 RNA 結合,而這個方向可以增強體外翻譯。
 

 N-7003
ARCA (Anti Reverse Cap Analog)

 

key step in cellular mRNA processing is the addition of a 5’ cap structure, which is a 5'-5' triphosphate linkage between the 5' end of the RNA and a guanosine nucleotide. The cap is methylated enzymatically at the N-7 position of the guanosine to form mature mCAP.

 
When preparing synthetic mRNA, the cap is often added prior to use in order to stabilize the mRNA and significantly enhance translation. Using a 4:1 mixture of a cap analog to GTP in transcription reactions will cap 80% of the resulting mRNAs. If mCAP (pre-methylated CAP) is used, only half of the asymmetrical mCAP will insert in the functional orientation. ARCA can only insert in the correct orientation, resulting in mRNAs that are translated twice as efficiently. TriLink is the least expensive source of high quality ARCA. We also offer CAP and mCAP for more traditional capping reactions.
 
 

Anderson, B.R., Muramatsu, H., Jha, B.K., Silverman, R.H., Weissman, D., Kariko, K. Nucleoside modifications in RNA limit activation of 2'-5'-oligoadenylate synthetase and increase resistance to cleavage by RNase L (2011) Nucleic Acids Research, EPub Aug
         
Warren et al., Highly Efficient Reprogramming to Pluripotency and Directed Differentiation of Human Cells with Synthetic Modified mRNA, Cell Stem Cell (2010), doi:10.1016/j.stem.2010.08.012.
         
Anderson, B., Muramatsu, H., Nallagatla, S.R., Bevilacqua, P.C., Sansing, L.H., Weissman, D. & Kariko, K. Incorporation of pseudouridine into mRNA enhances translation by dimishing PKR activation (2010) Nucleic Acids Research, 38(17): 5884-5892.
         
Kariko, K., Buckstein, M., Ni, H. & Weissman, D. Suppression of RNA Recognition by Toll-like Receptors: The Impact of Nucleoside Modifiation and the Evolutionary Origin of RNA (2005). Immunity, 23(2), 165-175.
         
Peng ZH, Sharma V, Singleton SF, Gershon PD. Synthesis and application of a chain-terminating dinucleotide mRNA cap analog. (2002) Organic Letters. 4(2):161-4.
         
Konarska MM, Padgett RA, Sharp PA. Recognition of cap structure in splicing in vitro of mRNA precursors. (1984) Cell. 38(3):731-6.
         
Miura K. The cap structure in eukaryotic messenger RNA as a mark of a strand carrying protein information. (1981) Adv Biophys. 14:205-38.
         
Banerjee AK. 5'-terminal cap structure in eucaryotic messenger ribonucleic acids. (1980) Microbiol Rev. 44(2):175-205.
         
Rosenberg M, Paterson BM. Efficient cap-dependent translation of polycistronic prokaryotic mRNAs is restricted to the first gene in the operon. (1979) Nature. 21;279(5715):696-701.
         
Filipowicz W. Functions of the 5,-terminal m7G cap in eukaryotic mRNA. (1978) FEBS Lett. 96(1):1-11.
         
Zan-Kowalczewska M, Bretner M, Sierakowska H, Szczesna E, Filipowicz W, Shatkin AJ. Removal of 5'-terminal m7G from eukaryotic mRNAs by potato nucleotide pyrophosphatase and its effect on translation. (1977) Nucleic Acids Res. 4(9):3065-81.

 

N-7003-1 ARCA 1umole
N-7003-10 ARCA 10umoles
N-7003-5 ARCA 5umoles

留言框

  • 產品:

  • 您的單位:

  • 您的姓名:

  • 聯(lián)系電話:

  • 常用郵箱:

  • 省份:

  • 詳細地址:

  • 補充說明:

  • 驗證碼:

    請輸入計算結果(填寫阿拉伯數(shù)字),如:三加四=7
亚洲综合国产成人丁香五月激情 | 国精无码欧精品亚洲一区| 久久天天躁狠狠躁夜夜avapp| 女人18片毛片60分钟| 久久久久久亚洲精品无码| 国产三级精品三级| 久久久久国产精品嫩草影院| 五十路熟女人妻一区二区| 色妞ww精品视频7777| 成熟丰满熟妇xxxxx丰满| 国产裸体舞一区二区三区| 强行无套内谢大学生初次水| 精品无码国产一区二区三区AV| 调教拨开两唇打花蒂戒尺| jizzjizz日本护士水好多| 亚洲AV无码精品色午夜果冻不| 亚洲精品亚洲人成人网| 影音先锋男人av橹橹色| ass年轻少妇浓毛pics| 息与子五十路孕中文字幕| 久久www免费人成一看片| 新婚之夜玩弄人妻系列| 国产真人无遮挡作爱免费视频| 精品人人妻人人澡人人爽牛牛| 在线观看的av网站| 亚洲欧美日韩综合久久久| 久久久久久AV无码免费看大片| 欧美性白人极品1819hd| 亚洲成av人片乱码色午夜| 两个体校校草被c出水| 女人十八片毛片免费视频| 亚洲av无一区二区三区久久\| 和少妇人妻邻居做爰无码| 国产精品国产精品国产专区不卡| xxxx18一20岁hd| 五十路○の豊満な肉体| 亚洲国产婷婷六月丁香| 精品久久久无码人妻字幂| 大白肥妇bbvbbw高潮| 国产女人高潮视频在线观看| 少妇人妻综合久久中文字幕|