Volume 59, Issue 6 pp. 2380-2384
Communication

Protein NMR Resonance Assignment without Spectral Analysis: 5D SOlid-State Automated Projection SpectroscopY (SO-APSY)

Henry W. Orton

Henry W. Orton

Research School of Chemistry, Australian National University, Canberra, ACT, 2601 Australia

These authors contributed equally to this work.

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Dr. Jan Stanek

Dr. Jan Stanek

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

Faculty of Chemistry, University of Warsaw, 02089 Warsaw, Poland

These authors contributed equally to this work.

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Dr. Tobias Schubeis

Dr. Tobias Schubeis

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

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Dylan Foucaudeau

Dylan Foucaudeau

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

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Claire Ollier

Claire Ollier

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

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Dr. Adrian W. Draney

Dr. Adrian W. Draney

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

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Dr. Tanguy Le Marchand

Dr. Tanguy Le Marchand

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

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Dr. Diane Cala-De Paepe

Dr. Diane Cala-De Paepe

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

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Prof. Dr. Isabella C. Felli

Prof. Dr. Isabella C. Felli

CERM and Department of Chemistry, University of Florence, 50019 Sesto Fiorentino, Italy

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Prof. Dr. Roberta Pierattelli

Prof. Dr. Roberta Pierattelli

CERM and Department of Chemistry, University of Florence, 50019 Sesto Fiorentino, Italy

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Prof. Dr. Sebastian Hiller

Prof. Dr. Sebastian Hiller

Biozentrum, University of Basel, 4056 Basel, Switzerland

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Dr. Wolfgang Bermel

Dr. Wolfgang Bermel

Bruker BioSpin GmbH, Silberstreifen, 76287 Rheinstetten, Germany

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Dr. Guido Pintacuda

Corresponding Author

Dr. Guido Pintacuda

Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, 69100 Villeurbanne, France

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First published: 28 October 2019
Citations: 23

Graphical Abstract

Protein spins in a new dimension: The correlation of five resonance frequencies of nuclear spins within one NMR experiment is now feasible for rapidly rotating protein solids by using projection spectroscopy. The dramatically reduced ambiguity means that the assignment of backbone resonances of proteins can be obtained automatically without the need for manual spectral analysis.

Abstract

Narrow proton signals, high sensitivity, and efficient coherence transfers provided by fast magic-angle spinning at high magnetic fields make automated projection spectroscopy feasible for the solid-state NMR analysis of proteins. We present the first ultrahigh dimensional implementation of this approach, where 5D peak lists are reconstructed from a number of 2D projections for protein samples of different molecular sizes and aggregation states, which show limited dispersion of chemical shifts or inhomogeneous broadenings. The resulting datasets are particularly suitable to automated analysis and yield rapid and unbiased assignments of backbone resonances.

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