二硫化物生物素疊氮化物是一種疊氮化物活化的可切割生物素探針,可在基于親和力的測(cè)定中有效回收親和素結(jié)合的蛋白質(zhì)復(fù)合物。 在還原條件下(50 mM二硫蘇糖醇、10 mM 2-巰基乙醇或1%硼氫化鈉),二硫鍵被切割,釋放生物素標(biāo)簽和與其結(jié)合的任何抗生物素蛋白綴合物。
產(chǎn)品描述
Extraordinary strength of the streptavidin-biotin interaction allows for efficient capturing of even highly dilute targets; however, it makes recovery of proteins from affinity resins challenging. Conventional methods to elute biotinylated proteins from immobilized avidin include the following: (i) denaturation of streptavidin by boiling the resin in a denaturing buffer that may include high concentrations of chaotropic salts, (ii) trypsin digestion of proteins while they are bound to the resin, or (iii) elution of proteins with excess free biotin. These protocols can co-elute contaminant proteins by releasing nonspecifically bound proteins and/or naturally biotinylated proteins concurrently with labeled proteins. In addition, some of these methods can cause elution of high levels of resin-based peptides along with the proteins of interest, resulting in further sample contamination.nnDisulfide Biotin Azide probe eliminates a major limitation of the streptavidin-biotin affinity purification. This reagent contains a biotin moiety linked to an azide moiety through a spacer arm containing a cleavable disulfide linker. Captured biomolecules can be efficiently released under mild conditions (50 mM dithiothreitol, 10 mM 2-mercaptoethanol or 1% sodium borohydride) and the small molecular fragment (188.25 Da) left on the labeled protein following cleavage. These features make the cleavable probe especially attractive for use in biomolecular labeling and proteomic studies.
產(chǎn)品形式
黃色無(wú)定形固體至黃色油狀物
保存建議
-20
其他
Click Chemistry Tools(CCT)公司位于美國(guó)亞利桑那州斯科茨代爾(Scottsdale,AZ)。自公司成立以來(lái),一致致力于不斷開發(fā)和擴(kuò)展一系列連接產(chǎn)品。他們利用特別新的研究成果研發(fā)生產(chǎn)出新穎的交聯(lián)和標(biāo)記試劑。產(chǎn)品被廣泛用于藥物研發(fā)、癌癥治療以及各類診斷技術(shù)等。此外,CCT還可以提供個(gè)性化的定制產(chǎn)品,已滿足不同用戶的需求。目前CCT的產(chǎn)品線主要包括:Azides(Biotin-Azides)試劑、Bis-sulfone交聯(lián)試劑、DBCO試劑、TCO試劑、Terminal Alkyne試劑、Tetrazine試劑、標(biāo)記試劑盒以及分選用底物等。nFluoroprobes公司位于美國(guó)亞利桑那州斯科茨代爾(Scottsdale, AZ),自成立以來(lái),一直致力于不斷開發(fā)一系列的連接(linker)產(chǎn)品。利用特別新的研究成果研發(fā)生產(chǎn)出各類新穎的交聯(lián)和標(biāo)記試劑。其產(chǎn)品被廣泛用于藥物研發(fā)與篩選、疾病治療方法和診斷技術(shù)等領(lǐng)域。此外,F(xiàn)luoroprobes還可以根據(jù)客戶的個(gè)性化需求提供各類定制連接產(chǎn)品。代表產(chǎn)品有Classic Fluorescent Dyes, AZDye, Cyanine Dyes, IR Dyes, MB dyes以及一些標(biāo)記試劑盒等。nQuanta Biodesign公司位于美國(guó)中部的俄亥俄州,成立于1997年。也是專注于生產(chǎn)研發(fā)各類標(biāo)記產(chǎn)品的品牌之一。其研發(fā)的產(chǎn)品與dPEG技術(shù)相結(jié)合,生產(chǎn)出他們獨(dú)有的專利產(chǎn)品dPEG Building Blocks and Linkers,被廣泛用于細(xì)胞治療和分子診斷等研究領(lǐng)域。另外,還可為廣大科研工作者提供多種化學(xué)修飾試劑以及傳統(tǒng)Liner等。n目前上述三個(gè)品牌都已被被Vectorlabs收購(gòu)并整合到Vectorlabs產(chǎn)品中