中文名稱

生物素-dPEG ?羥胺。鹽酸-50 mg

英文名字

Biotin-dPEG???-oxyamine. HCl-50 mg

供應(yīng)商

Click Chemistry Tools

產(chǎn)品貨號

CCT-QBD-11102-50

產(chǎn)品報價

￥詢價/50mg

產(chǎn)品說明書

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購買方式

銀行轉(zhuǎn)賬、電匯、支票、現(xiàn)金，在線支付寶及網(wǎng)銀支付，或直接與我們電話聯(lián)系。本公司所有產(chǎn)品僅供科研使用，不用于臨床診斷。

產(chǎn)品新聞

背景資料

Biotin-dPEG?11-羥胺·HCl，產(chǎn)品編號QBD-11100，由一個中等長度(38個原子，44.9 μ m)的單分子量、離散PEG(dPEG?)間隔基組成，其兩端分別用生物素和羥胺基團(作為HCl鹽)官能化。這種PEG生物素化合物與醛和酮反應(yīng)形成穩(wěn)定的肟鍵。使用這種生物素化試劑允許在使用酶促(例如，半乳糖氧化酶)或溫和的化學(xué)反應(yīng)條件(例如高碘酸鈉)將醛和酮引入糖蛋白的碳水化合物涂層上之后，對糖蛋白的碳水化合物涂層進行生物素標記。

產(chǎn)品描述

Biotin-dPEG?11-oxyamine·HCl, product number QBD-11100, consists of a medium-length (38 atoms, 44.9 ?) single molecular weight, discrete PEG (dPEG?) spacer functionalized at each end with biotin and an oxyamine group (as the HCl salt), respctively. This PEG biotin compound reacts with aldehydes and ketones to forms stable oxime bonds. Using this biotinylation reagent permits biotin labeling of the carbohydrate coats of glycoproteins after the introduction of aldehydes and ketones on the carbohydrate coat using enzymatic (for example, galactose oxidase) or mild chemical reaction conditions such as sodium periodate.nBiotinylation is the process of covalently attaching biotin to a molecule such as a peptide, protein, or nucleic acid, or surfaces such as glass or gold. Bioconjugation research and product development and numerous clinical assays use biotinylated molecules. The amphiphilic dPEG? linker of Biotin-dPEG?11-oxyamine·HCl imparts excellent water solubility to biotin, which is usually poorly soluble in water and causes non-specific hydrophobic interactions when conjugated to biomolecules.nSome commercially available biotin-aminooxy products use either no spacer or a hydrophobic alkyl chain as a spacer between biotin and the aminooxy moiety. Such products have poor solubility in water and must be dissolved in a dry organic solvent such as dimethyl sulfoxide (DMSO) immediately before use, which can be problematic under some conditions. If used on proteins, these hydrophobic products may trigger aggregation and precipitation of the biotinylated molecule. Even if aggregation and precipitation do not occur, the hydrophobic spacer can contribute to non-specific binding. Because it is amphiphilic, Biotin-dPEG?11-oxyamine·HCl can be dissolved in water or aqueous buffer and used directly in a conjugation reaction. QBD-11100 will not cause aggregation or precipitation of the biotinylated molecule. Moreover, the hydrophilicity of the dPEG? linker reduces or eliminates non-specific binding.nAn aminooxy group (also known as an alkoxyamine) consists of a primary terminal amine adjacent to oxygen (i.e., —ONH2). This group reacts selectively and efficiently with aldehydes to form an aldoxime linkage and with ketones to form a ketoxime linkage. An oxime bond is more stable than a hydrazone bond and does not need to be reduced to a secondary amine to stabilize it. Aldehydes and ketones occur relatively rarely in nature; however, using sodium periodate, aldehydes can be formed in glycoproteins whose carbohydrate coats contain reducing sugars. Moreover, scientific literature examples demonstrate the introduction of ketones into bacterial cell walls through liposomal fusion.

產(chǎn)品形式

25°C時為白色至類白色固體或半固體;儲存條件下為固體

保存建議

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

注意

該頁面的中文產(chǎn)品信息的翻譯，僅供參考。準確的產(chǎn)品信息請以廠家的英文說明書為準。下單前，請瀏覽說明書確認。

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