The best structural model of ADH so far: a pyrazolylbis(thioimidazolyl)borate zinc ethanol complex
Abstract
The new N,S,S ligand [HB(timo-An)2(pzPh,Me)] − (L1) was combined with zinc perchlorate and ethanol to form the complex [L1·Zn(ethanol)]ClO4 which is the first zinc complex in which the N,S,S ligation of zinc and the attachment of ethanol occurring in the active center of horse liver alcoholdehydrogenase (ADH) have been reproduced; the structural details of the ZnNS2O coordination in the complex and in DMSO-inhibited ADH are in reasonably good agreement.