基团(radical group):有机物失去一个原子或一个原子团后剩余的部分。
基团共轭效应参数_stmopen 关键词】: 基团 共轭效应 碳13核磁共振谱法 化学位移 苯P [gap=816]Keywords】: GROUP,CONJUGATIVE EFFECT,C13 NMR SPECTROMETRY,CHEMICAL SHIFT,BENZENE P
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[jī tuán] 基团(radical group):有机物失去一个原子或一个原子团后剩余的部分CH4→-CH3甲基 CH3CH3→-CH2CH3乙基 C6H6→-C6H5苯基 -NO2硝基
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TaqMan探针是一段5’端标记报告荧光基团,3’端标记淬灭荧光基团的寡核菅酸。报告荧光基团(如FAM)共价结合到寡核苷酸的5’端,TET、VIC、JOE及HEX也常用作报告荧光基团。所有这些报告荧光基通常都被位于3’端的TAMRA所淬灭。
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溶液中的盐份富集在聚合物分子的带电基团附近,并形成盐浓度梯度分布。
Salts are enriched around electriferous groups of polymer molecules in solution, which formed a salt concentration gradient.
生物脂质来源于酮脂酰和异戊二烯基团。
Biological lipids originate from ketoacyl and isoprene groups.
一个小小的分子称作一个乙酰基团,它黏在一个称作h4的特殊组蛋白上。
A small molecule called an acetyl group attaches to a particular histone known as H4.
And then linked to the glycerol instead of a third fatty acid chain is a water soluble molecule, like a salt.
但连到甘油上的第三个基团不是脂肪酸链,而是一种水溶性的分子,像盐一样
Well, imagine if that change in structure could be switched on and off by addition of a phosphorous; and in fact it can in many proteins.
那么,想象一下,只需引入磷酸基团,就能导致蛋白质的结构发生变化,事实上很多蛋白质就是如此
The phosphate group of one nucleotide gets linked to the sugar group of another nucleotide and I'm going to show you that in a few minutes.
一个核苷酸上的磷酸基团,连接在另外一个核苷酸的糖基上,马上我会给你们演示
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