3.5.1.104 Ca2+ activates 730006 3.5.1.104 Co2+ 0.05 mM, 30fold increase in activity 689736 3.5.1.104 Co2+ 1 mM, 10% increase in activity 687500 3.5.1.104 Co2+ activates, best metal ion 733581 3.5.1.104 Fe2+ abolishes the acnB-pgdA transcript binding leading to destabilization of the enzyme's mRNA 729936 3.5.1.104 Mg2+ activates 730006 3.5.1.104 Mn2+ best activating metal ion 730006 3.5.1.104 additional information metal site models show an intrinsic preference for zinc, but also significant flexibility of the site so that binding of other ions can eventually occur, e.g. Fe2+, Co2+, Cu2+, Mg2+, quantum chemical calculations, overview 730914 3.5.1.104 additional information metallo-dependent enzyme 733581 3.5.1.104 additional information SpPgdA is a metalloenzyme using a His-His-Asp zinc-binding triad with a nearby aspartic acid and histidine acting as the catalytic base and acid, respectively 689736 3.5.1.104 additional information the enzyme requires divalent cations 730006 3.5.1.104 Ni2+ activates 730006 3.5.1.104 Zn2+ 0.05 mM, 5.5fold increase in activity 689736 3.5.1.104 Zn2+ a zinc metalloenzyme 752966 3.5.1.104 Zn2+ a zinc metalloenzyme, active site metal 752784 3.5.1.104 Zn2+ a zinc metalloenzyme, active site-bound 754478 3.5.1.104 Zn2+ divalent metal binding site, one site per enzyme monomer, essential for the enzyme's catalytic activity, structure analysis, detailed overview 730914 3.5.1.104 Zn2+ lower dependence on zinc or nickel ions for deacetylation of peptidoglycan by the enzyme than other metal ions, Mn2+, Mg2+, and Ca2+ 730006 3.5.1.104 Zn2+ the zinc ion of the metalloenzyme is coordinated by a conserved binding triad of amino acids consisting of one aspartate and two histidine residues, determination of the metal-binding site, which is essential for the enzyme's catalytic activity, one metal site per monomer, structure and quantum chemical calculations of models, overview. The metal ion occupies a tetrahedral environment with binding to one of the carboxylic oxygen of Asp14, His86, His90 and a water molecule 730914