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Bonaccorsi M, Le Marchand T, Pintacuda G. Protein structural dynamics by Magic-Angle Spinning NMR. Curr Opin Struct Biol 2021; 70:34-43. [PMID: 33915352 DOI: 10.1016/j.sbi.2021.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 02/20/2021] [Indexed: 02/07/2023]
Abstract
Magic-Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR) is a fast-developing technique, capable of complementing solution NMR, X-ray crystallography, and electron microscopy for the biophysical characterization of microcrystalline, poorly crystalline or disordered protein samples, such as enzymes, biomolecular assemblies, membrane-embedded systems or fibrils. Beyond structures, MAS NMR is an ideal tool for the investigation of dynamics, since it is unique in its ability to distinguish static and dynamic disorder, and to characterize not only amplitudes but also timescales of motion. Building on seminal work on model proteins, the technique is now ripe for widespread application in structural biology. This review briefly summarizes the recent evolutions in biomolecular MAS NMR and accounts for the growing number of systems where this spectroscopy has provided a description of conformational dynamics over the very last few years.
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Affiliation(s)
- Marta Bonaccorsi
- Université de Lyon, Centre de RMN à Très hauts Champs, UMR 5280 (CNRS / Ecole Normale Supérieure de Lyon / Université Claude Bernard Lyon 1), 5 rue de la Doua, F-69100, Villeurbanne, France
| | - Tanguy Le Marchand
- Université de Lyon, Centre de RMN à Très hauts Champs, UMR 5280 (CNRS / Ecole Normale Supérieure de Lyon / Université Claude Bernard Lyon 1), 5 rue de la Doua, F-69100, Villeurbanne, France
| | - Guido Pintacuda
- Université de Lyon, Centre de RMN à Très hauts Champs, UMR 5280 (CNRS / Ecole Normale Supérieure de Lyon / Université Claude Bernard Lyon 1), 5 rue de la Doua, F-69100, Villeurbanne, France.
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Eidenschenk C, Cheruzel L. Ru(II)-diimine complexes and cytochrome P450 working hand-in-hand. J Inorg Biochem 2020; 213:111254. [PMID: 32979791 PMCID: PMC7686262 DOI: 10.1016/j.jinorgbio.2020.111254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/19/2020] [Accepted: 09/06/2020] [Indexed: 10/23/2022]
Abstract
With a growing interest in utilizing visible light to drive biocatalytic processes, several light-harvesting units and approaches have been employed to harness the synthetic potential of heme monooxygenases and carry out selective oxyfunctionalization of a wide range of substrates. While the fields of cytochrome P450 and Ru(II) photochemistry have separately been prolific, it is not until the turn of the 21st century that they converged. Non-covalent and subsequently covalently attached Ru(II) complexes were used to promote rapid intramolecular electron transfer in bacterial P450 enzymes. Photocatalytic activity with Ru(II)-modified P450 enzymes was achieved under reductive conditions with a judicious choice of a sacrificial electron donor. The initial concept of Ru(II)-modified P450 enzymes was further improved using protein engineering, photosensitizer functionalization and was successfully applied to other P450 enzymes. In this review, we wish to present the recent contributions from our group and others in utilizing Ru(II) complexes coupled with P450 enzymes in the broad context of photobiocatalysis, protein assemblies and chemoenzymatic reactions. The merging of chemical catalysts with the synthetic potential of P450 enzymes has led to the development of several chemoenzymatic approaches. Moreover, strained Ru(II) compounds have been shown to selectively inhibit P450 enzymes by releasing aromatic heterocycle containing molecules upon visible light excitation taking advantage of the rapid ligand loss feature in those complexes.
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Affiliation(s)
- Celine Eidenschenk
- Department Biochemical and Cellular Pharmacology, Genentech, One DNA Way, South San Francisco, CA 94080, USA
| | - Lionel Cheruzel
- San José State University, Department of Chemistry, One Washington Square, San José, CA 95192-0101, USA.
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Pagès G, Kinzina E, Grudinin S. Analytical symmetry detection in protein assemblies. I. Cyclic symmetries. J Struct Biol 2018; 203:142-148. [PMID: 29705493 DOI: 10.1016/j.jsb.2018.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/18/2018] [Accepted: 04/19/2018] [Indexed: 12/30/2022]
Abstract
Symmetry in protein, and, more generally, in macromolecular assemblies is a key point to understand their structure, stability and function. Many symmetrical assemblies are currently present in the Protein Data Bank (PDB) and some of them are among the largest solved structures, thus an efficient computational method is needed for the exhaustive analysis of these. The cyclic symmetry groups represent the most common assemblies in the PDB. These are also the building blocks for higher-order symmetries. This paper presents a mathematical formulation to find the position and the orientation of the symmetry axis in a cyclic symmetrical protein assembly, and also to assess the quality of this symmetry. Our method can also detect symmetries in partial assemblies. We provide an efficient C++ implementation of the method and demonstrate its efficiency on several examples including partial assemblies and pseudo symmetries. We also compare the method with two other published techniques and show that it is significantly faster on all the tested examples. Our method produces results with a machine precision, its cost function is solely based on 3D Euclidean geometry, and most of the operations are performed analytically. The method is available athttp://team.inria.fr/nano-d/software/ananas. The graphical user interface of the method built for the SAMSON platform is available athttp://samson-connect.net.
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Affiliation(s)
- Guillaume Pagès
- Inria, Univ. Grenoble Alpes, CNRS, Grenoble INP, LJK, Grenoble 38000, France
| | - Elvira Kinzina
- Moscow Institute of Physics and Technology, Dolgoprudny 141701, Russia
| | - Sergei Grudinin
- Inria, Univ. Grenoble Alpes, CNRS, Grenoble INP, LJK, Grenoble 38000, France.
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Gilmore BL, Varano AC, Dearnaley W, Liang Y, Marcinkowski BC, Dukes MJ, Kelly DF. Preparation of Tunable Microchips to Visualize Native Protein Complexes for Single-Particle Electron Microscopy. Methods Mol Biol 2018; 1764:45-58. [PMID: 29605907 DOI: 10.1007/978-1-4939-7759-8_3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Recent advances in technology have enabled single-particle electron microscopy (EM) to rapidly progress as a preferred tool to study protein assemblies. Newly developed materials and methods present viable alternatives to traditional EM specimen preparation. Improved lipid monolayer purification reagents offer considerable flexibility, while ultrathin silicon nitride films provide superior imaging properties to the structural study of protein complexes. Here, we describe the steps for combining monolayer purification with silicon nitride microchips to create a tunable approach for the EM community.
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Affiliation(s)
| | - A Cameron Varano
- Virginia Tech Carilion Research Institute, Roanoke, VA, USA.,Translational Biology, Medicine, and Health Graduate Program, Virginia Tech, Blacksburg, VA, USA
| | | | - Yanping Liang
- Virginia Tech Carilion Research Institute, Roanoke, VA, USA
| | | | | | - Deborah F Kelly
- Virginia Tech Carilion Research Institute, Roanoke, VA, USA. .,Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA.
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Abstract
Proteins are highly perfected natural molecular machines, owing their properties to the complex tertiary structures with precise spatial positioning of different functional groups that have been honed through millennia of evolutionary selection. The prospects of designing new molecular machines and structural scaffolds beyond the limits of natural proteins make design of new protein folds a very attractive prospect. However, de novo design of new protein folds based on optimization of multiple cooperative interactions is very demanding. As a new alternative approach to design new protein folds unseen in nature, folds can be designed as a mathematical graph, by the self-assembly of interacting polypeptide modules within the single chain. Orthogonal coiled-coil dimers seem like an ideal building module due to their shape, adjustable length, and above all their designability. Similar to the approach of DNA nanotechnology, where complex tertiary structures are designed from complementary nucleotide segments, a polypeptide chain composed of a precisely specified sequence of coiled-coil forming segments can be designed to self-assemble into polyhedral scaffolds. This modular approach encompasses long-range interactions that define complex tertiary structures. We envision that by expansion of the toolkit of building blocks and design strategies of the folding pathways protein origami technology will be able to construct diverse molecular machines.
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Affiliation(s)
- Igor Drobnak
- Laboratory of Biotechnology, National Institute of Chemistry, Ljubljana, Slovenia
| | - Ajasja Ljubetič
- Laboratory of Biotechnology, National Institute of Chemistry, Ljubljana, Slovenia
| | - Helena Gradišar
- Laboratory of Biotechnology, National Institute of Chemistry, Ljubljana, Slovenia.,EN-FIST Centre of Excellence, Ljubljana, Slovenia
| | - Tomaž Pisanski
- Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenia.,University of Primorska, Koper, Slovenia
| | - Roman Jerala
- Laboratory of Biotechnology, National Institute of Chemistry, Ljubljana, Slovenia. .,EN-FIST Centre of Excellence, Ljubljana, Slovenia.
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Cala-De Paepe D, Stanek J, Jaudzems K, Tars K, Andreas LB, Pintacuda G. Is protein deuteration beneficial for proton detected solid-state NMR at and above 100 kHz magic-angle spinning? Solid State Nucl Magn Reson 2017; 87:126-136. [PMID: 28802890 DOI: 10.1016/j.ssnmr.2017.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/14/2017] [Accepted: 07/24/2017] [Indexed: 06/07/2023]
Abstract
1H-detection in solid-state NMR of proteins has been traditionally combined with deuteration for both resolution and sensitivity reasons, with the optimal level of proton dilution being dependent on MAS rate. Here we present 1H-detected 15N and 13C CP-HSQC spectra on two microcrystalline samples acquired at 60 and 111 kHz MAS and at ultra-high field. We critically compare the benefits of three labeling schemes yielding different levels of proton content in terms of resolution, coherence lifetimes and feasibility of scalar-based 2D correlations under these experimental conditions. We observe unexpectedly high resolution and sensitivity of aromatic resonances in 2D 13C-1H correlation spectra of protonated samples. Ultrafast MAS reduces or even removes the necessity of 1H dilution for high-resolution 1H-detection in biomolecular solid-state NMR. It yields 15N,1H and 13C,1H fingerprint spectra of exceptional resolution for fully protonated samples, with notably superior 1H and 13C lineshapes for side-chain resonances.
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Affiliation(s)
- Diane Cala-De Paepe
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques (UMR 5280 - CNRS, ENS Lyon, UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Jan Stanek
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques (UMR 5280 - CNRS, ENS Lyon, UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Kristaps Jaudzems
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques (UMR 5280 - CNRS, ENS Lyon, UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Kaspars Tars
- Biomedical Research and Study Centre, Rātsupītes 1, LV1067, Riga, Latvia
| | - Loren B Andreas
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques (UMR 5280 - CNRS, ENS Lyon, UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France; Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Guido Pintacuda
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques (UMR 5280 - CNRS, ENS Lyon, UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France.
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7
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Struppe J, Quinn CM, Lu M, Wang M, Hou G, Lu X, Kraus J, Andreas LB, Stanek J, Lalli D, Lesage A, Pintacuda G, Maas W, Gronenborn AM, Polenova T. Expanding the horizons for structural analysis of fully protonated protein assemblies by NMR spectroscopy at MAS frequencies above 100 kHz. Solid State Nucl Magn Reson 2017; 87:117-125. [PMID: 28732673 PMCID: PMC5824719 DOI: 10.1016/j.ssnmr.2017.07.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 06/28/2017] [Accepted: 07/02/2017] [Indexed: 05/20/2023]
Abstract
The recent breakthroughs in NMR probe technologies resulted in the development of MAS NMR probes with rotation frequencies exceeding 100 kHz. Herein, we explore dramatic increases in sensitivity and resolution observed at MAS frequencies of 110-111 kHz in a novel 0.7 mm HCND probe that enable structural analysis of fully protonated biological systems. Proton- detected 2D and 3D correlation spectroscopy under such conditions requires only 0.1-0.5 mg of sample and a fraction of time compared to conventional 13C-detected experiments. We discuss the performance of several proton- and heteronuclear- (13C-,15N-) based correlation experiments in terms of sensitivity and resolution, using a model microcrystalline fMLF tripeptide. We demonstrate the applications of ultrafast MAS to a large, fully protonated protein assembly of the 231-residue HIV-1 CA capsid protein. Resonance assignments of protons and heteronuclei, as well as 1H-15N dipolar and 1HN CSA tensors are readily obtained from the high sensitivity and resolution proton-detected 3D experiments. The approach demonstrated here is expected to enable the determination of atomic-resolution structures of large protein assemblies, inaccessible by current methodologies.
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Affiliation(s)
- Jochem Struppe
- Bruker Biospin Corporation, 15 Fortune Drive, Billerica, MA, United States.
| | - Caitlin M Quinn
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Manman Lu
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Mingzhang Wang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Guangjin Hou
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Xingyu Lu
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Jodi Kraus
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Loren B Andreas
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques, UMR 5280 CNRS / Ecole Normale Supérieure de Lyon, 5 rue de la Doua, 69100, Villeurbanne, Lyon, France
| | - Jan Stanek
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques, UMR 5280 CNRS / Ecole Normale Supérieure de Lyon, 5 rue de la Doua, 69100, Villeurbanne, Lyon, France
| | - Daniela Lalli
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques, UMR 5280 CNRS / Ecole Normale Supérieure de Lyon, 5 rue de la Doua, 69100, Villeurbanne, Lyon, France
| | - Anne Lesage
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques, UMR 5280 CNRS / Ecole Normale Supérieure de Lyon, 5 rue de la Doua, 69100, Villeurbanne, Lyon, France
| | - Guido Pintacuda
- Centre de RMN à Très Hauts Champs, Institut des Sciences Analytiques, UMR 5280 CNRS / Ecole Normale Supérieure de Lyon, 5 rue de la Doua, 69100, Villeurbanne, Lyon, France
| | - Werner Maas
- Bruker Biospin Corporation, 15 Fortune Drive, Billerica, MA, United States
| | - Angela M Gronenborn
- Department of Structural Biology, University of Pittsburgh School of Medicine, 3501 Fifth Ave., Pittsburgh, PA, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.
| | - Tatyana Polenova
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; Pittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.
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8
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Abstract
It is widely accepted that the loss of function of different cellular proteins following their aggregation into highly stable aggregates or the gain of pathologic function of the resulting macromolecular assemblies or both processes are tightly associated to distinct debilitating neurodegenerative diseases such as Alzheimer's, Parkinson's, Creutzfeldt-Jacob, Amyotrophic Lateral Sclerosis and Huntington's diseases. How the aggregation of one given protein leads to distinct diseases is unclear. Here, a structural-molecular explanation based on the ability of proteins such as α-synuclein or tau to form assemblies that differ by their intrinsic architecture, stability, seeding capacity, and surfaces is proposed to account for distinct synucleinopathies and tauopathies. The shape and surfaces of the seeds is proposed to define at the same time their seeding capacity, interactome and tropism for defined neuronal cells within the central nervous system.
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Affiliation(s)
- Ronald Melki
- Paris Saclay Institute of Neurosciences, CNRS, Bâtiment 32-33, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France.
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9
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Abstract
Two-dimensional nanoscale assemblies (nanosheets) represent a promising structural platform to arrange molecular and supramolecular substrates with precision for integration into devices. This nanoarchitectonic approach has gained significant traction over the last decade, as a general concept to guide the fabrication of functional nanoscale devices. Sequence-specific biomolecules, e.g., peptides and proteins, may be considered excellent substrates for the fabrication of two-dimensional nanoarchitectonics. Molecular level instructions can be encoded within the sequence of monomers, which allows for control over supramolecular structure if suitable design principles could be elaborated. Due to the complexity of interactions between protomers, the development of principles aimed toward rational design of peptide and protein nanosheets is at a nascent stage. This review discusses the known two-dimensional peptide and protein assemblies to further our understanding of how to control the arrangement of molecules in two-dimensions.
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Lu J, Trnka MJ, Roh SH, Robinson PJJ, Shiau C, Fujimori DG, Chiu W, Burlingame AL, Guan S. Improved Peak Detection and Deconvolution of Native Electrospray Mass Spectra from Large Protein Complexes. J Am Soc Mass Spectrom 2015; 26:2141-51. [PMID: 26323614 PMCID: PMC5067139 DOI: 10.1007/s13361-015-1235-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 07/20/2015] [Accepted: 07/22/2015] [Indexed: 05/11/2023]
Abstract
Native electrospray-ionization mass spectrometry (native MS) measures biomolecules under conditions that preserve most aspects of protein tertiary and quaternary structure, enabling direct characterization of large intact protein assemblies. However, native spectra derived from these assemblies are often partially obscured by low signal-to-noise as well as broad peak shapes because of residual solvation and adduction after the electrospray process. The wide peak widths together with the fact that sequential charge state series from highly charged ions are closely spaced means that native spectra containing multiple species often suffer from high degrees of peak overlap or else contain highly interleaved charge envelopes. This situation presents a challenge for peak detection, correct charge state and charge envelope assignment, and ultimately extraction of the relevant underlying mass values of the noncovalent assemblages being investigated. In this report, we describe a comprehensive algorithm developed for addressing peak detection, peak overlap, and charge state assignment in native mass spectra, called PeakSeeker. Overlapped peaks are detected by examination of the second derivative of the raw mass spectrum. Charge state distributions of the molecular species are determined by fitting linear combinations of charge envelopes to the overall experimental mass spectrum. This software is capable of deconvoluting heterogeneous, complex, and noisy native mass spectra of large protein assemblies as demonstrated by analysis of (1) synthetic mononucleosomes containing severely overlapping peaks, (2) an RNA polymerase II/α-amanitin complex with many closely interleaved ion signals, and (3) human TriC complex containing high levels of background noise. Graphical Abstract ᅟ.
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Affiliation(s)
- Jonathan Lu
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA
- Princeton University, Princeton, NJ, 08544, USA
| | - Michael J Trnka
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA
| | - Soung-Hun Roh
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Philip J J Robinson
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Carrie Shiau
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA
- Chemistry and Chemical Biology Graduate Program, University of California, San Francisco, CA, 94158, USA
| | - Danica Galonic Fujimori
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA, 94158, USA
| | - Wah Chiu
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Alma L Burlingame
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA
| | - Shenheng Guan
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA.
- Institute for Neurodegenerative Diseases, University of California, San Francisco, CA, 94143, USA.
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