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Direct detection of lysine side chain NH3+ in protein–heparin complexes using NMR spectroscopy
Analyst ( IF 4.2 ) Pub Date : 2017-12-13 00:00:00 , DOI: 10.1039/c7an01406f
Krishna Mohan Sepuru 1, 2, 3, 4, 5 , Junji Iwahara 1, 2, 3, 4, 5 , Krishna Rajarathnam 1, 2, 3, 4, 5
Affiliation  

Two NMR observables, the NζH3+ peak in the HISQC spectrum and Nζ chemical shift difference between the free and heparin-bound forms, can identify binding-interface lysines in protein–heparin complexes. Unlike backbone chemical shifts, these direct probes are stringent and are less prone to either false positives or false negatives.

中文翻译:

使用NMR光谱法 直接检测蛋白质-肝素复合物中 的赖氨酸侧链NH 3 +

两个NMR可观测量,将N ζ ħ 3 +在HISQC光谱峰和N ζ自由和肝素结合形式之间的化学位移差,可以识别在蛋白-肝素复合物的结合界面赖氨酸。与主链化学位移不同,这些直接探针严格,不容易出现假阳性或假阴性。
更新日期:2017-12-13
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