磺基-SBED 生物素标记转移试剂,No-Weigh™ 形式
磺基-SBED 生物素标记转移试剂,No-Weigh™ 形式
Thermo Scientific™

磺基-SBED 生物素标记转移试剂,No-Weigh™ 形式

Thermo Scientific Pierce Sulfo-SBED 生物素标记转移试剂是一种多功能试剂,用于标记纯化蛋白,然后将连接的生物素标签共价转移至该蛋白的特定相互作用体上。Sulfo-SBED 是磺基-N-羟基琥珀酰亚胺-2-(6-[生物素酰氨基]-2-(对-叠氮基苯甲酰氨基)-己酰氨基)乙基-1,3'-二硫代丙酸酯的缩写。它是一种异型双功能化学交联剂,能够一端与伯胺共价连接,另一端与几乎任何蛋白官能团共价连接。与典型交联剂不同,Sulfo-SBED 还包括生物素基团和可切割的二硫化物间隔臂了解更多信息
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货号数量
3303310 mg
A3926010 x 1 mg
货号 33033
价格(CNY)
5,318.00
Each
添加至购物车
数量:
10 mg
请求批量或定制报价
价格(CNY)
5,318.00
Each
添加至购物车
Thermo Scientific Pierce Sulfo-SBED 生物素标记转移试剂是一种多功能试剂,用于标记纯化蛋白,然后将连接的生物素标签共价转移至该蛋白的特定相互作用体上。

Sulfo-SBED 是磺基-N-羟基琥珀酰亚胺-2-(6-[生物素酰氨基]-2-(对-叠氮基苯甲酰氨基)-己酰氨基)乙基-1,3'-二硫代丙酸酯的缩写。它是一种异型双功能化学交联剂,能够一端与伯胺共价连接,另一端与几乎任何蛋白官能团共价连接。与典型交联剂不同,Sulfo-SBED 还包括生物素基团和可切割的二硫化物间隔臂。这些特点相结合可使交联剂依次交联相互作用蛋白,并将生物素亲和标记从一种蛋白(即纯化“诱饵”蛋白)转移至另一种蛋白(可能是未知“猎物”蛋白)。标签转移是用于蛋白质相互作用研究的强大体外方法。越来越多的出版物描述使用 Sulfo-SBED 生物素标记转移试剂鉴别先前未知的蛋白相互作用结合配偶体以及更全面地表征其他蛋白相互作用的特定蛋白结合结构域的过程。

标记转移实验的典型方案:

•将几微升溶解的 Sulfo-SBED 试剂加入 0.5-1 mL 纯化诱饵蛋白的 PBS 溶液中。
•在冰上或室温下于暗处孵育混合物 30-120 分钟。
•进行脱盐或透析(在弱光下)以从标记诱饵蛋白中去除过量未反应的 Sulfo-SBED。
•将标记诱饵蛋白添加至细胞裂解物或其他包含假定靶蛋白相互作用体(“猎物”)的溶液中。
•当形成相互作用复合物时,将溶液暴露在紫外光 (365 nm) 下几分钟。
•通过以下几种方法之一分析产品:
Western 印迹:切割 DTT 中的交联,通过 SDS-PAGE 分离蛋白,并通过 Western 印迹法使用辣根过氧化物酶标记的链霉素亲和素检测生物素化条带。
纯化和质谱或测序:胰蛋白酶酶切后对生物素化蛋白或肽片段进行亲和纯化,并进行 MS 或测序以表征相关蛋白。

相关产品
磺基-SBED 生物素标签转移试剂盒 - Western 印迹应用

仅供科研使用。不可用于诊断程序。
规格
产品规格粉末
标记方法化学标记、标记转移
产品类型交联剂
数量10 mg
反应一部分Sulfo-NHS 酯,芳香叠氮化物
溶解度
产品线Pierce™
Unit SizeEach
内容与储存
接收后,在 4° C 下储存。

常见问题解答 (FAQ)

What makes Sulfo-SBED Biotin Label Transfer Reagent useful for investigation of protein interactions?

Sulfo-SBED allows one to transfer a biotin tag from an amine-containing protein to a second protein (reacted with the phenyl azide). The amine-containing protein can be removed by reduction of the disulfide in the Sulfo-SBED spacer arm. This leaves just the second biotinylated protein for detection.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.

Should the Sulfo-SBED coupling reaction be protected from light?

During the initial coupling procedure, the solutions should be protected from light to avoid decomposition of the phenyl azide functional group.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.

Which reaction should take place first during Sulfo-SBED crosslinking?

The NHS-ester end of the crosslinker is subject to hydrolysis, therefore the amine-containing protein should be conjugated prior to the photoactivatable (aryl azide) reaction.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.

What is the appropriate wavelength for the conjugation of the photoactivatable group in Sulfo-SBED Biotin Label Transfer Reagent ?

UV light at wavelengths greater than 300 nm are appropriate for conjugation.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.

Is the Sulfo-SBED crosslinker soluble in organic solutions as well as aqueous solutions?

Yes, Sulfo-SBED is soluble in aqueous as well as organic solutions. It is most soluble in organics such as DMF and DMSO.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.