title: Atomic motion in enzymatic reaction coordinates.
abstract: Atomic excursions of reactants in enzymatic catalytic sites can be estimated from high-resolution crystal structures of enzyme complexes with substrates, transition state analog inhibitors and products. Transition state structures, defined from kinetic isotope effect studies, are compared to crystallographic structures to validate the properties of the transition state analog. Atomic excursions in enzymatic catalytic sites can differ from those in solution and define the role of the enzymatic catalyst in directing atomic motion.
authors.affiliation: Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA. vern@aecom.yu.edu
authors.forename: V L
authors.initials: VL
authors.lastname: Schramm
authors.forename: W
authors.initials: W
authors.lastname: Shi
mesh_terms: D000818:Animals; D020134:Catalytic Domain; D018360:Crystallography, X-Ray; D003564:Cytidine Deaminase / Q000737:chemistry / Q000378:metabolism; D045647:DNA Glycosylases; D004791:Enzyme Inhibitors; D004798:Enzymes / Q000737:chemistry / Q000378:metabolism*; D006801:Humans; D009038:Motion; D009699:N-Glycosyl Hydrolases / Q000737:chemistry / Q000378:metabolism; D011487:Protein Conformation; D017027:Protein Tyrosine Phosphatases / Q000737:chemistry / Q000378:metabolism; D011683:Purine-Nucleoside Phosphorylase / Q000737:chemistry / Q000378:metabolism; D012276:Ricin / Q000737:chemistry / Q000378:metabolism; D051981:Uracil-DNA Glycosidase
chemical_list: D004791:Enzyme Inhibitors; D004798:Enzymes; D012276:Ricin; D011683:Purine-Nucleoside Phosphorylase; D017027:Protein Tyrosine Phosphatases; D045647:DNA Glycosylases; D009699:N-Glycosyl Hydrolases; D051981:Uracil-DNA Glycosidase; D003564:Cytidine Deaminase