Direct characterization of enzyme-substrate complexes by using electrosonic spray ionization mass spectrometry

被引:36
作者
Wiseman, JM
Takáts, Z
Gologan, B
Davisson, VJ
Cooks, RG [1 ]
机构
[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA
[2] Purdue Univ, Dept Med Chem & Mol Pharmacol, W Lafayette, IN 47907 USA
关键词
electrospray ionization; mass spectrometry; noncovalent interactions; proteins;
D O I
10.1002/anie.200461672
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
It's a phase it's going through: Electrosonic spray ionization shows better desolvation efficiency than electrospray ionization and usually gives single-charge states when used to ionize noncovalent complexes of large biomolecules. The binary and ternary complexes of imidazole-3-glycerol phosphate synthase (IGPS) with its inhibitors appear to retain their native solution-phase conformations upon transfer into the gas phase (see picture).
引用
收藏
页码:913 / 916
页数:4
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