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Macchiagodena M, Fragai M, Gallo A, Pagliai M, Ravera E. The Role of Lysozyme in the Formation of Bioinspired Silicon Dioxide. Chemistry 2024; 30:e202401249. [PMID: 38722210 DOI: 10.1002/chem.202401249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Indexed: 06/19/2024]
Abstract
Several organisms are able to polycondensate tetraoxosilicic(IV) acid to form silicon(IV) dioxide using polycationic molecules. According to an earlier mechanistic proposal, these molecules undergo a phase separation and recent experimental evidence appears to confirm this model. At the same time, polycationic proteins like lysozyme can also promote polycondensation of silicon(IV) dioxide, and they do so under conditions that are not compatible with liquid-liquid phase separation. In this manuscript we investigate this conundrum by molecular simulations.
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Affiliation(s)
- Marina Macchiagodena
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Marco Fragai
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
- Consorzio Interuniversitario Risonanze Magnetiche di Metallo-proteine (CIRMMP), via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
| | - Angelo Gallo
- Department of Chemistry, University of Turin, Via P. Giuria 7, 10125, Torino, Italy
| | - Marco Pagliai
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Enrico Ravera
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
- Consorzio Interuniversitario Risonanze Magnetiche di Metallo-proteine (CIRMMP), via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
- Florence Data Science, University of Florence, Viale G.B. Morgagni 59, 50134, Florence, Italy
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Cerofolini L, Parigi G, Ravera E, Fragai M, Luchinat C. Solid-state NMR methods for the characterization of bioconjugations and protein-material interactions. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2022; 122:101828. [PMID: 36240720 DOI: 10.1016/j.ssnmr.2022.101828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/26/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Protein solid-state NMR has evolved dramatically over the last two decades, with the development of new hardware and sample preparation methodologies. This technique is now ripe for complex applications, among which one can count bioconjugation, protein chemistry and functional biomaterials. In this review, we provide our account on this aspect of protein solid-state NMR.
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Affiliation(s)
- Linda Cerofolini
- Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy
| | - Giacomo Parigi
- Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Magnetic Resonance Center (CERM), Università degli Studi di Firenze, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Department of Chemistry "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Enrico Ravera
- Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Magnetic Resonance Center (CERM), Università degli Studi di Firenze, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Department of Chemistry "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy; Florence Data Science, Università degli Studi di Firenze, Italy.
| | - Marco Fragai
- Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Magnetic Resonance Center (CERM), Università degli Studi di Firenze, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Department of Chemistry "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
| | - Claudio Luchinat
- Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Magnetic Resonance Center (CERM), Università degli Studi di Firenze, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy; Department of Chemistry "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
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Bruno F, Gigli L, Ferraro G, Cavallo A, Michaelis VK, Goobes G, Fratini E, Ravera E. Lysozyme is Sterically Trapped Within the Silica Cage in Bioinspired Silica-Lysozyme Composites: A Multi-Technique Understanding of Elusive Protein-Material Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8030-8037. [PMID: 35738569 PMCID: PMC9261187 DOI: 10.1021/acs.langmuir.2c00836] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Lysozyme is widely known to promote the formation of condensed silica networks from solutions containing silicic acid, in a reproducible and cost-effective way. However, little is known about the fate of the protein after the formation of the silica particles. Also, the relative arrangement of the different components in the resulting material is a matter of debate. In this study, we investigate the nature of the protein-silica interactions by means of solid-state nuclear magnetic resonance spectroscopy, small-angle X-ray scattering, and electron microscopy. We find that lysozyme and silica are in intimate contact and strongly interacting, but their interaction is neither covalent nor electrostatic: lysozyme is mostly trapped inside the silica by steric effects.
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Affiliation(s)
- Francesco Bruno
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| | - Lucia Gigli
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| | - Giovanni Ferraro
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia, 3, Sesto Fiorentino 50019, Italy
| | - Andrea Cavallo
- CERTEMA
S.c.a.r.l., S.P. Del
Cipressino Km 10, Cinigiano 58044, Italy
| | | | - Gil Goobes
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Emiliano Fratini
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia, 3, Sesto Fiorentino 50019, Italy
| | - Enrico Ravera
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP), via L. Sacconi 6, Sesto Fiorentino 50019, Italy
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