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Kurzbach D, Beier A, Vanas A, Flamm AG, Platzer G, Schwarz TC, Konrat R. NMR probing and visualization of correlated structural fluctuations in intrinsically disordered proteins. Phys Chem Chem Phys 2018; 19:10651-10656. [PMID: 28397898 DOI: 10.1039/c7cp00430c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel statistical analysis of paramagnetic relaxation enhancement (PRE) and paramagnetic relaxation interference (PRI) based nuclear magnetic resonance (NMR) data is proposed based on the computation of correlation matrices. The technique is demonstrated with an example of the intrinsically disordered proteins (IDPs) osteopontin (OPN) and brain acid soluble protein 1 (BASP1). The correlation analysis visualizes in detail the subtleties of conformational averaging in IDPs and highlights the presence of correlated structural fluctuations of individual sub-domains in IDPs.
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Affiliation(s)
- Dennis Kurzbach
- Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolécules (LBM), 24 rue Lhomond, 75005 Paris, France.
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Kurzbach D, Canet E, Flamm AG, Jhajharia A, Weber EMM, Konrat R, Bodenhausen G. Investigation of Intrinsically Disordered Proteins through Exchange with Hyperpolarized Water. Angew Chem Int Ed Engl 2017; 56:389-392. [PMID: 27918140 DOI: 10.1002/anie.201608903] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Indexed: 01/13/2023]
Abstract
Hyperpolarized water can selectively enhance NMR signals of rapidly exchanging protons in osteopontin (OPN), a metastasis-associated intrinsically disordered protein (IDP), at near-physiological pH and temperature. The transfer of magnetization from hyperpolarized water is limited to solvent-exposed residues and therefore selectively enhances signals in 1 H-15 N correlation spectra. Binding to the polysaccharide heparin was found to induce the unfolding of preformed structural elements in OPN.
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Affiliation(s)
- Dennis Kurzbach
- Departement de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolécules (LBM), 24 rue Lhomond, 75005, Paris, France
- Sorbonne Universites, UPMC Univ Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules (LBM), Paris, France
| | - Estel Canet
- Departement de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolécules (LBM), 24 rue Lhomond, 75005, Paris, France
- Sorbonne Universites, UPMC Univ Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules (LBM), Paris, France
| | - Andrea G Flamm
- Department of Structural and Computational Biology, Max F. Perutz Laboratories, University of Vienna, Vienna BioCenter Campus 5, 1030, Vienna, Austria
| | - Aditya Jhajharia
- Departement de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolécules (LBM), 24 rue Lhomond, 75005, Paris, France
- Sorbonne Universites, UPMC Univ Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules (LBM), Paris, France
| | - Emmanuelle M M Weber
- Departement de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolécules (LBM), 24 rue Lhomond, 75005, Paris, France
- Sorbonne Universites, UPMC Univ Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules (LBM), Paris, France
| | - Robert Konrat
- Department of Structural and Computational Biology, Max F. Perutz Laboratories, University of Vienna, Vienna BioCenter Campus 5, 1030, Vienna, Austria
| | - Geoffrey Bodenhausen
- Departement de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolécules (LBM), 24 rue Lhomond, 75005, Paris, France
- Sorbonne Universites, UPMC Univ Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules (LBM), Paris, France
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Kurzbach D, Canet E, Flamm AG, Jhajharia A, Weber EMM, Konrat R, Bodenhausen G. Untersuchung von intrinsisch unstrukturierten Proteinen mithilfe des Austausches mit hyperpolarisiertem Wasser. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608903] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dennis Kurzbach
- Departement de Chimie Ecole Normale Supérieure, PSL Research University UPMC Univ Paris 06, CNRS Laboratoire des Biomolécules (LBM) 24 rue Lhomond 75005 Paris Frankreich
- Sorbonne Universites, UPMC Univ Paris 06 Ecole Normale Supérieure CNRS, Laboratoire des Biomolécules (LBM) Paris Frankreich
| | - Estel Canet
- Departement de Chimie Ecole Normale Supérieure, PSL Research University UPMC Univ Paris 06, CNRS Laboratoire des Biomolécules (LBM) 24 rue Lhomond 75005 Paris Frankreich
- Sorbonne Universites, UPMC Univ Paris 06 Ecole Normale Supérieure CNRS, Laboratoire des Biomolécules (LBM) Paris Frankreich
| | - Andrea G. Flamm
- Department of Structural and Computational Biology Max F. Perutz Laboratories Universität Wien Vienna BioCenter 5 1030 Wien Österreich
| | - Aditya Jhajharia
- Departement de Chimie Ecole Normale Supérieure, PSL Research University UPMC Univ Paris 06, CNRS Laboratoire des Biomolécules (LBM) 24 rue Lhomond 75005 Paris Frankreich
- Sorbonne Universites, UPMC Univ Paris 06 Ecole Normale Supérieure CNRS, Laboratoire des Biomolécules (LBM) Paris Frankreich
| | - Emmanuelle M. M. Weber
- Departement de Chimie Ecole Normale Supérieure, PSL Research University UPMC Univ Paris 06, CNRS Laboratoire des Biomolécules (LBM) 24 rue Lhomond 75005 Paris Frankreich
- Sorbonne Universites, UPMC Univ Paris 06 Ecole Normale Supérieure CNRS, Laboratoire des Biomolécules (LBM) Paris Frankreich
| | - Robert Konrat
- Department of Structural and Computational Biology Max F. Perutz Laboratories Universität Wien Vienna BioCenter 5 1030 Wien Österreich
| | - Geoffrey Bodenhausen
- Departement de Chimie Ecole Normale Supérieure, PSL Research University UPMC Univ Paris 06, CNRS Laboratoire des Biomolécules (LBM) 24 rue Lhomond 75005 Paris Frankreich
- Sorbonne Universites, UPMC Univ Paris 06 Ecole Normale Supérieure CNRS, Laboratoire des Biomolécules (LBM) Paris Frankreich
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