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The efficiency of selection for catalysis by phage display library was studied using a ligase (the Escherichia coli biotin ligase BirA) and an endopeptidase (the rat trypsin His57->Ala mutant) as model enzymes. These enzymes could be displayed on phage as ...
Ethylene oxidn. on IrO2, which is a metal-type conducting metal oxide, and on Pt and Rh was used as a model reaction to compare the rate enhancement and kinetic modification induced by (i) electrochem. promotion (non-Faradaic electrochem. modification of c ...
A 33-residue de novo designed peptide ligase is reported which catalyzes the template-directed condensation of suitably activated short peptides with catalytic efficiencies in excess of 105 ([kcat/Km]/kuncat). The ligase peptide, derived from natural and d ...
Homo- and heterobimetallic complexes, in which half-sandwich complexes of ruthenium(II), rhodium(III), and iridium(III) are connected via three chloro bridges to RuCl2(PPh3)2, have been synthesized. The complexes were obtained in quant. yields by reaction ...
We have cloned Pfnek-1, a gene encoding a novel protein kinase from the human malaria parasite Plasmodium falciparum. This enzyme displays maximal homology to the never-in-mitosis/Aspergillus (NIMA)/NIMA-like kinase (Nek) family of protein kinases, whose m ...
A parallel study of the radical copper enzyme galactose oxidase (GOase) and a low mol. wt. analog of the active site was performed with dynamic d. functional and mixed quantum-classical calcns. This combined approach enables a direct comparison of the prop ...
A parallel study of the radical-copper enzyme Galactose Oxidase (GOase) and a low mol. wt. analog of the active site (Wang et. al. , Science 279, 537 (1998)) was performed with dynamical d. functional and mixed quantum-classical (QM/MM) calcns. This combin ...
PCT No. PCT/IB95/00786 Sec. 371 Date Mar. 24, 1998 Sec. 102(e) Date Mar. 24, 1998 PCT Filed Sep. 25, 1995 PCT Pub. No. WO97/12382 PCT Pub. Date Apr. 3, 1997The present invention aims at improving the catalytic activity of the metallic platinum deposited on ...
Small addition of potassium to V/Ti-oxide catalyst (K:V=0.19), consisting of 3.7 monolayer VOx, increased activity and selectivity in partial oxidation of toluene. In order to elucidate the nature of vanadia species formed on the surface of V/Ti-oxide upon ...
The catalytic properties of Pd and Pt supported on woven glass fibers (GF) were investigated in the three-phase hydrogenation of nitrobenzene (NB). Over all catalysts, a 100% yield of aniline was attained. The catalytic activity for the best catalysts was ...
