Detailed Information on Publication Record
2022
Sensitivity-Enhanced Multidimensional Solid-State NMR Spectroscopy by Optimal-Control-Based Transverse Mixing Sequences
BLAHUT, Jan, Matthias J BRANDL, Tejaswini PRADHAN, Bernd REIF, Zdenek TOSNER et. al.Basic information
Original name
Sensitivity-Enhanced Multidimensional Solid-State NMR Spectroscopy by Optimal-Control-Based Transverse Mixing Sequences
Authors
BLAHUT, Jan, Matthias J BRANDL, Tejaswini PRADHAN, Bernd REIF and Zdenek TOSNER
Edition
Journal of the American Chemical Society, Washington, American Chemical Society, 2022, 0002-7863
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 15.000
RIV identification code
RIV/00216224:14740/22:00128889
Organization unit
Central European Institute of Technology
UT WoS
000853710600001
Keywords in English
Carbon; Humans; Immunoglobulin Light Chains; Magnetic Resonance Spectroscopy; Nuclear Magnetic Resonance; Biomolecular; Proteins; Protons
Tags
International impact, Reviewed
Změněno: 16/3/2023 10:31, Mgr. Pavla Foltynová, Ph.D.
Abstract
V originále
Recently, proton-detected magic-angle spinning (MAS) solid-state nuclear magnetic resonance (NMR) spectroscopy has become an attractive tool to study the structure and dynamics of insoluble proteins at atomic resolution. The sensitivity of the employed multidimensional experiments can be systematically improved when both transversal components of the magnetization are transferred simultaneously after an evolution period. The method of preservation of equivalent pathways has been explored in solution-state NMR; however, it does not find widespread application due to relaxation issues connected with increased molecular size. We present here for the first time heteronuclear transverse mixing sequences for correlation experiments at moderate and fast MAS frequencies. Optimal control allows to boost the signal-to-noise ratio (SNR) beyond the expected factor of root 2 for each indirect dimension. In addition to the carbon-detected sensitivity-enhanced 2D NCA experiment, we present a novel proton detected, doubly sensitivity-enhanced 3D hCANH pulse sequence for which we observe a 3-fold improvement in SNR compared to the conventional experimental implementation. The sensitivity gain turned out to be essential to unambiguously characterize a minor fibril polymorph of a human lambda-III immunoglobulin light chain protein that escaped detection so far.
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