Stabilization and Binding of [V 4 O 12 ] 4- and Unprecedented [V 20 O 54 (NO 3 )] n- to Lysozyme upon Loss of Ligands and Oxidation of the Potential Drug V IV O(acetylacetonato) 2.
Ferraro, G., Tito, G., Sciortino, G., Garribba, E., Merlino, A.(2023) Angew Chem Int Ed Engl 62: e202310655-e202310655
- PubMed: 37768728 
- DOI: https://doi.org/10.1002/anie.202310655
- Primary Citation of Related Structures:  
7ZU6, 8PTE - PubMed Abstract: 
High-resolution crystal structures of lysozyme in the presence of the potential drug V IV O(acetylacetonato) 2 under two different experimental conditions have been solved. The crystallographic study reveals the loss of the ligands, the oxidation of V IV to V V and the subsequent formation of adducts of the protein with two different polyoxidovanadates: [V 4 O 12 ] 4- , which interacts with lysozyme non-covalently, and the unprecedented [V 20 O 54 (NO 3 )] n- , which is covalenty bound to the side chain of an aspartate residue of symmetry related molecules.
Organizational Affiliation: 
Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126, Napoli, Italy.