Isotopic Resolution of Protein Complexes up to 466 kDa Using Individual Ion Mass Spectrometry.
Isotopic Resolution of Protein Complexes up to 466 kDa Using Individual Ion Mass Spectrometry.
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DOI:
10.1021/acs.analchem.0c03282
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发表时间:
2021-02-09
影响因子:
7.4
通讯作者:
Kelleher NL
中科院分区:
文献类型:
--
作者:
McGee JP;Melani RD;Yip PF;Senko MW;Compton PD;Kafader JO;Kelleher NL
Native mass spectrometry involves transferring large biomolecular complexes into the gas phase, enabling the characterization of their composition and stoichiometry. However, the overlap in distributions created by residual solvation, ionic adducts, and post-translational modifications creates a high degree of complexity that typically goes unresolved at masses above ~150 kDa. Therefore, native mass spectrometry would greatly benefit from higher resolution approaches for intact proteins and their complexes. By recording mass spectra of individual ions via charge detection mass spectrometry, we report isotopic resolution for pyruvate kinase (232 kDa) and β-galactosidase (466 kDa), extending the limits of isotopic resolution for high mass and high m/z by >2.5-fold and >1.6-fold, respectively.
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影响因子:
7.4
作者:
Shaw, Jared B.;Brodbelt, Jennifer S.
通讯作者:
Brodbelt, Jennifer S.
DOI:
10.1021/jasms.9b00040
发表时间:
2020-03-04
影响因子:
3.2
作者:
Kafader JO;Melani RD;Schachner LF;Ives AN;Patrie SM;Kelleher NL;Compton PD
通讯作者:
Compton PD
影响因子:
3
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Mandal, Amit Kumar
影响因子:
2.9
作者:
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REED, GH
DOI:
10.1016/s1044-0305(97)00060-3
发表时间:
1997-04-01
影响因子:
3.2
作者:
Kelleher, NL;Senko, MW;McLafferty, FW
通讯作者:
McLafferty, FW