DBCO-dPEG?4-MAL, product number QBD-10592, is a short, single molecular weight, discrete polyethylene glycol (dPEG?) crosslinking reagent. The dibenzylcyclooctyne (DBCO) moiety permits strain-promoted azide-alkyne cycloaddition (SPAAC), also known as "copper-free click chemistry." The maleimidopropyl (MAL) functional group forms a thiol-ether linkage with sulfhydryl groups. The short, single molecular weight dPEG? spacer is hydrophilic and non-immunogenic. DBCO-dPEG?4-MAL provides the benefits of PEG (increased water solubility, non-immunogenicity) without the analytical headaches of PEG dispersity.nThe copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) discovered by K. Barry Sharpless and coworkers is one of the best-known click chemistry reactions, but its in vivo usability is limited by copper toxicity. Carolyn Bertozzi and coworkers developed SPAAC as a way to avoid copper’s toxic effects on living cells using a highly strained cyclooctyne. Developments since the initial publication show that reagents based on DBCO provide excellent, highly selective reactivity with azides, forming a triazole product.nMaleimide groups are widely popular for their ability to react rapidly with sulfhydryl groups via a Michael addition to form thioether bonds.nVector Laboratories' dPEG? products clearly differ from traditional polymeric polyethylene glycol (PEG). Traditional PEG is a dispersed polymer product with a Poisson distribution of chain lengths and molecular weights. The intractable mixture of chain lengths and molecular weights in traditional PEG products creates significant analytical challenges. In contrast, Vector Laboratories' dPEG? products are single molecular weight compounds with discrete chain lengths. Using Vector Laboratories' products greatly simplifies the analysis of dPEG?-conjugated compounds.
產(chǎn)品形式
黃褐色至琥珀色固體或半固體
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其他
Click Chemistry Tools(CCT)公司位于美國亞利桑那州斯科茨代爾(Scottsdale,AZ)。自公司成立以來,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公司位于美國亞利桑那州斯科茨代爾(Scottsdale, AZ),自成立以來,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目前上述三個品牌都已被被Vectorlabs收購并整合到Vectorlabs產(chǎn)品中