n-Octylpolyoxyethylene

目录号: GA23310纯度: >98.00%同义词: 聚乙二醇单辛醚
n-Octylpolyoxyethylene是一种非离子表面活性剂, 可溶解膜蛋白,用于蛋白质溶解、纯化和结晶,其临界胶束浓度(CMC)值为6.6mM。

n-Octylpolyoxyethylene
Cas No.: 27252-75-1
规格价格库存数量操作
25g¥4,590.00现货
1
100g¥12,169.00现货
1
250g¥23,552.00现货
1

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产品描述 Description

n-Octylpolyoxyethylene is a nonionic surfactant that can dissolve membrane proteins and is used for protein solubilization, purification, and crystallization. Its critical micelle concentration (CMC) value is 6.6mM[1, 2]. The CMC value is defined as the minimum concentration at which surfactant molecules in a solvent associate to form micelles[3]. n-Octylpolyoxyethylene can be used as an antibacterial agent, possibly inhibiting bacterial growth by disrupting the bacterial cell membrane or interfering with the synthesis of proteins required for bacterial growth[4].

References:
[1] Hollingsworth K. The synthesis of a maltose responsive switch[D]. University of Leeds, 2015.
[2] Žuna K, Jovanović O, Khailova L S, et al. Mitochondrial uncoupling proteins (UCP1-UCP3) and adenine nucleotide translocase (ANT1) enhance the protonophoric action of 2, 4-dinitrophenol in mitochondria and planar bilayer membranes[J]. Biomolecules, 2021, 11(8): 1178.
[3] Hait S K, Moulik S P. Determination of critical micelle concentration (CMC) of nonionic surfactants by donor‐acceptor interaction with lodine and correlation of CMC with hydrophile‐lipophile balance and other parameters of the surfactants[J]. Journal of Surfactants and Detergents, 2001, 4(3): 303-309.
[4] Wang Q, Ko K S, Kapus A, et al. A spirochete surface protein uncouples store-operated calcium channels in fibroblasts: a novel cytotoxic mechanism[J]. Journal of Biological Chemistry, 2001, 276(25): 23056-23064.

n-Octylpolyoxyethylene是一种非离子表面活性剂, 可溶解膜蛋白,用于蛋白质溶解、纯化和结晶,其临界胶束浓度(CMC)值为6.6mM[1, 2]。CMC值的定义是表面活性剂分子在溶剂中缔合形成胶束的最低浓度[3]。n-Octylpolyoxyethylene可用作抗菌剂,可能通过破坏细菌的细胞膜或干扰细菌生长所需蛋白质的合成来抑制细菌的生长[4]

实验参考方法 Experimental Reference Method

本方案仅提供一个指导,请根据您的具体需要进行修改。

1. 溶液配制

(1)工作液:用DMSO溶解n-Octylpolyoxyethylene,用实验缓冲液稀释储存液,配制到所需的工作浓度。
注意:最佳的工作浓度请根据实际情况调整或参阅文献自行设置梯度浓度进行摸索。工作液必须现配现用。

2. 使用n-Octylpolyoxyethylene重新折叠、纯化和重构蛋白质的实验步骤[1](来源文献,仅供参考)
(1)将含有选定cDNA序列的表达质粒转化到大肠杆菌菌株中。诱导、高压均质化和离心后,将蛋白质分离为包涵体。
(2)将1mg包涵体溶解在含有2% N-月桂酰肌氨酸、1.3% Triton X-114、0.3% n-Octylpolyoxyethylene、1mM DTT和GTP(pH 7.5)的TE/G缓冲液中。逐渐混入50mg脂质混合物(DOPC:DOPE:CL, 45:45:10mol%)。
(3)将混合物浓缩并透析到实验缓冲液(50mM Na2SO4、10mM MES、10mM Tris和0.6mM EGTA(pH 7.34))中。
(4)通过离心和含有羟基磷灰石的柱子从透析液中去除未折叠和聚集的蛋白质。使用Bio-Beads SM-2去除非离子洗涤剂。
(5)使用蛋白质测定试剂盒测量蛋白脂质体中的蛋白质浓度。通过SDS-PAGE和银染色验证蛋白质纯度。

注意:为了您的安全和健康,请穿实验服并戴一次性手套操作。

References:
[1]Žuna K, Jovanović O, Khailova L S, et al. Mitochondrial uncoupling proteins (UCP1-UCP3) and adenine nucleotide translocase (ANT1) enhance the protonophoric action of 2, 4-dinitrophenol in mitochondria and planar bilayer membranes[J]. Biomolecules, 2021, 11(8): 1178.

产品文档 Product Documents

Purity:>98.00%

化学性质Chemical Properties

CAS 号
27252-75-1
同义词
聚乙二醇单辛醚
分子式
(C2H4O)nC8H18O
溶解性
Soluble in DMSO
保存条件
Store at 2-8°C
General tips
请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。
储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
为了提高溶解度,请将管子加热至 37°C,然后在超声波浴中震荡一段时间。
Shipping Condition
评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备 RT,或根据请求配备蓝冰。

计算工具摩尔浓度 / 稀释 / 分子量 / 单位换算

g/mol