PROBLEM TO BE SOLVED: To provide a method for performing high-sensitivity measurements for various amino acids using a pre-column derivatization LC-MS method.SOLUTION: Both an amino group and a carboxyl group contained in an amino acid are derivatized by using a bromoalkyl compound such as 1-...
By systematically evaluating absorption intensity, electron spin resonance (ESR) signals, enzyme kinetic parameters and activation energies, we obtain evidence that the carboxyl group can enhance catalytic activity and may serve as substrate-binding sites, but the amino group can even inhibit the ...
混合物含有氨基基团(Amino Groups)和羧基基团(carboxyl groups),氨基和羧基基团携带的电荷与三种常见的生物催化剂… www.biotech.org.cn|基于4个网页 2. 羧基团 在最后步骤,研究人员以carboxymethanol处理他们的奈米纤维,使纤维表面覆上羧基团(carboxyl groups)。这些羧基很容易形 … ...
百度试题 结果1 题目The covalent bond formed between the carboxyl group of one amino acid and the amino group of another amino acid is called___.相关知识点: 试题来源: 解析 Peptide bond 反馈 收藏
amino carboxyl chelating 氨羧络合剂 biotin carboxyl carrier protein 生物素羧基载体蛋白 相似单词 carboxyl n. 羧基 group n.[C] 1.组,群,批,类,簇 2.集团 v.[I] 1.(使)成群、成组,聚集 2.将…分类,把…分组 methyl(group) 甲基 ginger group 核心小组 in group n. 内集团 age group ...
The presence of unusual amino acid residues in these peptides has provided opportunities to attempt a variety of semisynthetic modifications. We describe several new amatoxin derivatives that were prepared by selective modification of an aldehyde group which can be generated by periodate oxidation of 6...
contacting the sample with a bifunctional material containing an amino group and a carboxyl group at a first pH to bind the nucleic acid to the bifunctional material, the bifunctional material being positively charged at the first pH; and releasing the nucleic acid at a second pH which is highe...
Glycine consists of a single carbon molecule attached to an amino and a carboxyl group. Its small size helps it to function as a flexible link in proteins and allows for the formation of helices, an extracellular signaling molecule, recognition sites on cell membranes and enzymes, a modifier ...
The result of infrared chromatographic analysis showed that: both the amino group and carboxyl group participated in the chelating reaction. 红外色谱分析表明:在大豆肽与钙的螯合试验中,氨基与羧基均参与了螯合反应。 www.13191.com 3. Nile red and nile blue derivatives with carboxyl or amino or hydrox...