Protein Hydration in a Bioprotecting Mixture

We combined broad-band depolarized light scattering and infrared spectroscopies to study the properties of hydration water in a lysozyme-trehalose aqueous solution, where trehalose is present above the concentration threshold (30% in weight) relevant for biopreservation. The joint use of the two dif...

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Main Authors: Silvia Corezzi, Brenda Bracco, Paola Sassi, Marco Paolantoni, Lucia Comez
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Life
Subjects:
Online Access:https://www.mdpi.com/2075-1729/11/10/995
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author Silvia Corezzi
Brenda Bracco
Paola Sassi
Marco Paolantoni
Lucia Comez
author_facet Silvia Corezzi
Brenda Bracco
Paola Sassi
Marco Paolantoni
Lucia Comez
author_sort Silvia Corezzi
collection DOAJ
description We combined broad-band depolarized light scattering and infrared spectroscopies to study the properties of hydration water in a lysozyme-trehalose aqueous solution, where trehalose is present above the concentration threshold (30% in weight) relevant for biopreservation. The joint use of the two different techniques, which were sensitive to inter-and intra-molecular degrees of freedom, shed new light on the molecular mechanism underlying the interaction between the three species in the mixture. Thanks to the comparison with the binary solution cases, we were able to show that, under the investigated conditions, the protein, through preferential hydration, remains strongly hydrated even in the ternary mixture. This supported the water entrapment scenario, for which a certain amount of water between protein and sugar protects the biomolecule from damage caused by external agents.
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spelling doaj.art-afdb00bd29ed41dfb591f3a74773ac7f2023-11-22T18:51:50ZengMDPI AGLife2075-17292021-09-01111099510.3390/life11100995Protein Hydration in a Bioprotecting MixtureSilvia Corezzi0Brenda Bracco1Paola Sassi2Marco Paolantoni3Lucia Comez4Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, 06123 Perugia, ItalyDipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, ItalyDipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, ItalyDipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, ItalyCNR-IOM at Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, 06123 Perugia, ItalyWe combined broad-band depolarized light scattering and infrared spectroscopies to study the properties of hydration water in a lysozyme-trehalose aqueous solution, where trehalose is present above the concentration threshold (30% in weight) relevant for biopreservation. The joint use of the two different techniques, which were sensitive to inter-and intra-molecular degrees of freedom, shed new light on the molecular mechanism underlying the interaction between the three species in the mixture. Thanks to the comparison with the binary solution cases, we were able to show that, under the investigated conditions, the protein, through preferential hydration, remains strongly hydrated even in the ternary mixture. This supported the water entrapment scenario, for which a certain amount of water between protein and sugar protects the biomolecule from damage caused by external agents.https://www.mdpi.com/2075-1729/11/10/995hydration waterlight scatteringlysozymetrehalose
spellingShingle Silvia Corezzi
Brenda Bracco
Paola Sassi
Marco Paolantoni
Lucia Comez
Protein Hydration in a Bioprotecting Mixture
Life
hydration water
light scattering
lysozyme
trehalose
title Protein Hydration in a Bioprotecting Mixture
title_full Protein Hydration in a Bioprotecting Mixture
title_fullStr Protein Hydration in a Bioprotecting Mixture
title_full_unstemmed Protein Hydration in a Bioprotecting Mixture
title_short Protein Hydration in a Bioprotecting Mixture
title_sort protein hydration in a bioprotecting mixture
topic hydration water
light scattering
lysozyme
trehalose
url https://www.mdpi.com/2075-1729/11/10/995
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AT brendabracco proteinhydrationinabioprotectingmixture
AT paolasassi proteinhydrationinabioprotectingmixture
AT marcopaolantoni proteinhydrationinabioprotectingmixture
AT luciacomez proteinhydrationinabioprotectingmixture