title: Structural features of the Cu(2+)-vancomycin complex.
abstract: The structure of vancomycin coordinated to Cu(2+) ions is presented and structural aspects upon metal coordination are discussed. The asymmetric part of unit cell comprises two independent molecules of vancomycin-Cu(2+) complex, one of them is partially disordered. The binding site involves one imino nitrogen atom, two amide nitrogen atoms delivered by peptide bonds, and carboxyl oxygen from the peptide moiety. The identical set of donor atoms is not reflected in identical coordination geometry around individual metal ions. The studied complex presents two distinct types of conformation. Additionally, leucinyl side chain in one conformer is disordered leading to another type of conformation. The complex molecules form heterodimer with antiparallel hydrogen bonding.
authors.affiliation: Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie Street, 50-383 Wrocław, Poland.
authors.forename: Marzena
authors.initials: M
authors.lastname: Kucharczyk
authors.forename: Magdalena
authors.initials: M
authors.lastname: Brzezowska
authors.forename: Anna
authors.initials: A
authors.lastname: Maciag
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Lis
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Jezowska-Bojczuk
mesh_terms: D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D019281:Dimerization; D006860:Hydrogen Bonding; D008958:Models, Molecular; D015394:Molecular Structure; D014640:Vancomycin / Q000737:chemistry*
chemical_list: D014640:Vancomycin; D003300:Copper