COPPER(II) COMPOUND WITH LONG CU(II)-PHENOLIC OXYGEN-ATOM BONDING AS GALACTOSE-OXIDASE MODEL

Authors
ITO S NISHINO S ITOH H OHBA S NISHIDA Y
Citation
S. Ito et al., COPPER(II) COMPOUND WITH LONG CU(II)-PHENOLIC OXYGEN-ATOM BONDING AS GALACTOSE-OXIDASE MODEL, Polyhedron, 17(10), 1998, pp. 1637-1642
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
17
Issue
10
Year of publication
1998
Pages
1637 - 1642
Database
ISI
SICI code
0277-5387(1998)17:10<1637:CCWLCO>2.0.ZU;2-Q
Abstract
A crystal structure determination of Cu(phpyH)ClClO4 . CH3OH revealed that the protonated phenolic oxygen atom lies at the apex of a square pyramidal CuN4O arrangement with Cu(II)-O(phenolic) distances of 2.46 and 2.57 Angstrom; this is a novel copper(II) model compound for galac tose oxidase where the Cu(II)-phenolic oxygen (Tyrosine-495) distance is rather long, 2.69 Angstrom, and the present results may provide che mical evidence for possible participation of Tyrosine-495 in the oxida tion of galactose. (C) 1998 Elsevier Science Ltd. All rights reserved.