Double Nitroxide Labeling by Copper-Catalyzed Azide–Alkyne Cycloadditions with Noncanonical Amino Acids for Electron Paramagnetic Resonance Spectroscopy
Double Nitroxide Labeling by Copper-Catalyzed Azide–Alkyne Cycloadditions with Noncanonical Amino Acids for Electron Paramagnetic Resonance Spectroscopy
复制标题
用于电子顺磁共振波谱分析的铜催化叠氮化物-炔环加成与非规范氨基酸的双氮氧化物标记
DOI:
10.1021/acschembio.8b01111
复制
发表时间:
2019
影响因子:
4
通讯作者:
Malte Drescher
中科院分区:
文献类型:
--
作者:
Pia Widder;Frederic Berner;Daniel Summerer;Malte Drescher
Electron paramagnetic resonance spectroscopy in combination with site-directed spin labeling (SDSL) is an important tool to obtain long-range distance restraints for protein structural research. We here study a variety of azide- and alkyne-bearing noncanonical amino acids (ncAA) in terms of protein single- and double-incorporation efficiencyvianonsense suppression, metabolic stability, yields of nitroxide labelingviacopper-catalyzed [3 + 2] azide–alkyne cycloadditions (CuAAC), and spectroscopic properties in continuous-wave and double electron–electron resonance measurements. We identifypara-ethynyl-l-phenylalanine andpara-propargyloxy-l-phenylalanine as suitable ncAA for CuAAC-based SDSL that will complement current SDSL approaches, particularly in cases in which essential cysteines of a target protein prevent the use of sulfhydryl-reactive spin labels.
登录
查看更多内容
影响因子:
4
作者:
Peacock, Hayden;Fostvedt, Erik;Beal, Peter A.
通讯作者:
Beal, Peter A.
影响因子:
4.7
作者:
Maza JC;McKenna JR;Raliski BK;Freedman MT;Young DD
通讯作者:
Young DD
影响因子:
15
作者:
Schmidt, Moritz J.;Borbas, Julia;Summerer, Daniel
通讯作者:
Summerer, Daniel
影响因子:
6.5
作者:
Anne Gaebler;Anke Penno;Lars Kuerschner;C. Thiele
通讯作者:
C. Thiele
影响因子:
3.3
作者:
Polyhach, Yevhen;Bordignon, Enrica;Jeschke, Gunnar
通讯作者:
Jeschke, Gunnar