FITC-BIOTIN,荧光素标记生物素,FITC-Biotin既具靶向识别能力又具荧光示踪功能
FITC-BIOTIN(荧光素标记生物素)
FITC-BIOTIN 是由异硫氰酸荧光素(FITC)和菌物素利用共价键拼接而成的荧光探头。该氧原子核永久保存了菌物素对亲和素/链霉亲和素的高感染力,同一存在 FITC 的先进典型荧光性(调动可见光波长约495 nm,发射成功约519 nm)。FITC-BIOTIN 最常用于免疫抗体荧光、体细胞成相、亲和标上图片、ELISA 在线检测及微阵列技术设备中。其结构特征动态平衡,水可溶性积极,既具靶点掌握学习能力又具荧光示踪能力,是氧原子核探头和奈米的载体修饰语的特选标上图片氧原子核。一、简介
命名:FITC-Biotin中文名字各称:荧光素标出动物素英语别号:Fluorescein-Biotin,Fluorescein Isothiocyanate-Biotin,Biotin-FITC特性:紫色颗粒型式:
应用说明:
微微生态学体素能用的 于:少突胶质血癌细胞系的培养。最为芽孢杆菌(Bacillus)种子发芽的维生素A填写剂。天然免疫抗体力安排学使用实施方案中的内源性微微生态学体素阻绝。微微生态学体素就是一种小原子,所以它与微微生态学体几丁质酶大原子相融时并不要会影响到大原子的微微生态学体学的功能。微微生态学体素-(链霉)亲和素机整体是好几种应用领域所必需品的。微微生态学体素还可最为各类羧化酶的辅成分/辅酶,如二甲苯酸羧化酶、乙酰辅酶A羧化酶 1 和 2、3-甲基巴豆酰辅酶A羧化酶 (MCC) 和丙酰辅酶A羧化酶 (PCC)。它可催化剂的作用二甲苯酸和CO2生成草酰乙酸。与亲和素或链霉亲和素偶联的微微生态学体素可幫助将靶原子(抗原、核苷酸、蛋清A等)与标志机整体(酶、荧光、生态学技术闪光测试探针)连通接。该组合物能用的 于好几种查重机整体,如天然免疫抗体力查重、DNA杂交育种查重、天然免疫抗体力组化和流式的血癌细胞系术。该工艺还能用的 于好几种工作目标原子的纯化和定性分析。微微生态学体素参与活动dna、血癌细胞系预警传导电流和上色质结构类型的表观隐性基因调空。荧光素标志的微微生态学体素(FITC-Biotin)质粒酶切:将表达方法质粒用约束性内切酶(同引物的酶切位点)确定双酶切,酶切结果行琼脂糖电泳后,用胶收购Kit或冻融法收购质粒大精彩片段。参考文献:
来源:
主要描述:
We describe molecular capturing properties of protein nanotubes with a controllable ligand binding affinity and size selectivity. These practical biocylinders were prepared using an alternating layer-by-layer (LbL) assembly of protein and oppositely charged poly(amino acid) into the nanoporous polycarbonate (PC) membrane (pore diameter, 400 nm), with subsequent dissolution of the template. The tube wall typically comprises six layers of poly-l-arginine (PLA) and human serum albumin (HSA) [(PLA/HSA)3]. Use of high molecular weight PLA (Mw = ca. 70 000) yielded robust nanotubes, which are available as lyophilized powder. The (PLA/HSA)3 nanotubes swelled considerably in water, although the outer diameter was almost unaltered. Uranyl ion, 3,3′-diethylthiacarbocyanine iodide, and zinc(II) protoporphyrin IX (ZnPP) were bound to the HSA component in the cylinder wall. Similar nanotubes comprising recombinant HSA mutant [rHSA(His)], which has a strong binding affinity for ZnPP, captured this ligand more tightly. Furthermore, addition of excess myristic acid released ZnPP from the tubes through a ligand replacement reaction. The hybrid nanotubes bearing a single avidin layer as an internal surface captured FITC-biotin efficiently. Biotin-labeled nanoparticles are also incorporated into the tubes when their particle size is sufficiently small to enter the pores. Subsequent TEM observation revealed a line of loaded nanoparticles (100 nm) in the one-dimensional space interior.
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