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Mechanism of hydrogen-radical addition to polycondensed aromatic rings.

Mechanism of hydrogenation and isomerization of alkenes by heterogeneous catalysts.

Mechanism of hydrogenation and isomerization.

Mechanism of hydrogenation of butadiene with pentacyanocobaltate.

Mechanism of hydrogenation of ethyne over a metal catalyst.

Mechanism of hydrogenation of ketones with mthenium-diamine-bisphosphine complexes.

Mechanism of hydrogenation of NBR catalyzed by Pd 2-benzoyl pyridinejL. Source

Mechanism of hydrogenation of Z -l,2-dialkylethene .

Mechanism of hydrogenation on the surface of metal catalyst

Mechanism of hydroiminoacylation by transimination.

Mechanism of hydroiminoacylation.

Mechanism of hydroiysis of neuraminidase and zanamivir as a transition-state analogue.

Mechanism of hydrolase-catalyzed reaction.

Mechanism of hydrolysis and crosslink formation through the condensation reaction of silanol groups

Mechanism of hydrolysis of acetylcholine by acetylcholine esterase.

Mechanism of hydrolysis of acetylcholine by acetylcholinesterase of the enzyme.

Mechanism of hydrolysis of ACh by AChE. A. ACh-AChE reversible complex. B. Acetylation of esteralic site. C General base-caialya hydrolysis of acetylated enzyme. D. Free enzyme.

Mechanism of hydrolysis of cellulose molecule.

Mechanism of hydrolysis of ethyl ethanoate.

Mechanism of hydrolysis of peptide substrates by cysteine proteinases.

Mechanism of hydrolysis of phosphate esters by GpdQ as determined in stopped-flow fluorescence studies . Reprinted with permission from . Copyright American Chemical Society

Mechanism of hydrolysis of phosphotyrosine residues by tyrosine phosphatases. Cleavage of phosphate from phosphotyrosine residues takes place by an in-line attack of a nucleophilic cysteine thiolate of the tyrosine phosphatase at the phosphate of the phosphotyrosine residue. The negative charge on the thiolate is stabilized by the positive charge of a conserved Arg residue. In the course of the reaction, an enzyme-Cys-phosphate intermediate is formed, which is hydrolytically cleaved to phosphate and enzyme-Cys-SH. The figure shows selected interactions. Other interactions in the active center involved in substrate binding and catalysis are not shown. According to Tainer and Russel, . R

Mechanism of hydrolysis of poly- .

Mechanism of hydrolysis ofpoly

Mechanism of hydrolysis ofpq ttdesi4 liaie by cysteine proteinase.



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