Protein Hydration in a Bioprotecting Mixture.
Life (Basel)
; 11(10)2021 Sep 22.
Article
em En
| MEDLINE
| ID: mdl-34685367
ABSTRACT
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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MEDLINE
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article