Native Mass Spectrometry Imaging of Proteins and Protein Complexes by Nano-DESI.
Native Mass Spectrometry Imaging of Proteins and Protein Complexes by Nano-DESI.
复制标题
DOI:
10.1021/acs.analchem.0c05277
复制
发表时间:
2021-03-16
影响因子:
7.4
通讯作者:
Cooper HJ
中科院分区:
文献类型:
--
作者:
Hale OJ;Cooper HJ
Previously, we have demonstrated native mass spectrometry imaging (native MSI) in which the spatial distribution of proteins maintained in their native-like, folded conformations was determined using liquid extraction surface analysis (LESA). While providing an excellent testbed for proof of principle, the spatial resolution of LESA is currently limited for imaging primarily by the physical size of the sampling pipette tip. Here, we report the adoption of nanospray-desorption electrospray ionization (nano-DESI) for native MSI, delivering substantial improvements in resolution versus native LESA MSI. In addition, native nano-DESI may be used for location-targeted top–down proteomics analysis directly from tissue. Proteins, including a homodimeric complex not previously detected by native MSI, were identified through a combination of collisional activation, high-resolution MS and proton transfer charge reduction.
登录
查看更多内容
DOI:
10.1002/anie.201704849
发表时间:
2017-11-13
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Ambrose S;Housden NG;Gupta K;Fan J;White P;Yen HY;Marcoux J;Kleanthous C;Hopper JTS;Robinson CV
通讯作者:
Robinson CV
影响因子:
7.4
作者:
Laskin, Julia;Heath, Brandi S.;Roach, Patrick J.;Cazares, Lisa;Semmes, O. John
通讯作者:
Semmes, O. John
DOI:
10.1021/jasms.0c00354
发表时间:
2021-01-28
影响因子:
3.2
作者:
Chen, Chih-Lin;Kuo, Ting-Hao;Hsu, Cheng-Chih
通讯作者:
Hsu, Cheng-Chih
影响因子:
7.4
作者:
Griffiths, Rian L.;Randall, Elizabeth C.;Cooper, Helen J.
通讯作者:
Cooper, Helen J.
影响因子:
7.4
作者:
Garza KY;Feider CL;Klein DR;Rosenberg JA;Brodbelt JS;Eberlin LS
通讯作者:
Eberlin LS