Binding of VIVO2+, VIVOL, VIVOL2 and VVO2L Moieties to Proteins : X-ray/Theoretical Characterization and Biological Implications
Santos, Marino F.A. (Universidade NOVA de Lisboa)
Sciortino, Giuseppe (Institut d'Investigacions Químiques de Catalunya)
Correia, Isabel (Universidade de Lisboa)
Fernandes, Andreia C.P. (Universidade NOVA de Lisboa)
Santos-Silva, Teresa (Universidade NOVA de Lisboa)
Pisanu, Federico (Università di Sassari)
Garribba, Eugenio (Università di Sassari. Dipartimento di Medicina, Chirurgia e Farmacia)
Costa Pessoa, João (Universidade de Lisboa)

Date:	2022
Abstract:	Vanadium compounds have frequently been proposed as therapeutics, but their application has been hampered by the lack of information on the different V-containing species that may form and how these interact with blood and cell proteins, and with enzymes. Herein, we report several resolved crystal structures of lysozyme with bound VIVO2+ and VIVOL2+, where L=2,2'-bipyridine or 1,10-phenanthroline (phen), and of trypsin with VIVO(picolinato)2 and VVO2(phen)+ moieties. Computational studies complete the refinement and shed light on the relevant role of hydrophobic interactions, hydrogen bonds, and microsolvation in stabilizating the structure. Noteworthy is that the trypsin−VVO2(phen) and trypsin−VIVO(OH)(phen) adducts correspond to similar energies, thus suggesting a possible interconversion under physiological/biological conditions. The obtained data support the relevance of hydrolysis of VIV and VV complexes in the several types of binding established with proteins and the formation of different adducts that might contribute to their pharmacological action, and significantly widen our knowledge of vanadium-protein interactions.
Grants:	Ministerio de Ciencia e Innovación FJC2019-039135-I
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Metalloproteins ; Molecular modeling ; Structure elucidation ; Vanadium ; X-ray diffraction
Published in:	Chemistry, Vol. 28, Issue 40 (July 2022) , art. e202200105, ISSN 1521-3765

DOI: 10.1002/chem.202200105
PMID: 35486702

Postprint 22 p, 904.1 KB

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