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Purification and mechanism of action of sucrose phosphorylase.
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The mechanism of action of S-adenosylhomocysteinase.
TLDR
Since the enzyme catalyzes proton abstraction without OH elimination, it was concluded that the elimination of H2O from adenosine proceeds by a carbanion mechanism and not by a concerted elimination.
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Mechanistic studies of two dioxygenases in the methionine salvage pathway of Klebsiella pneumoniae.
TLDR
Two dioxygenases (ARD and ARD') were cloned from Klebsiella pneumoniae that catalyze different oxidative decomposition reactions of an advanced aci-reductone intermediate in the methionine salvage pathway, demonstrating the chemical and kinetic competency of the proposed five-membered cyclic peroxide intermediate.
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beta-Hydroxypropionaldehyde, an intermediate in the formation of 1,3-propanediol by Aerobacter aerogenes.
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One Protein, Two Enzymes*
TLDR
Observations suggest that the metal component dictates reaction specificity in E.2 and E-2′ depends on the availability of the corresponding metals.
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Evidence against an acyl-enzyme intermediate in the reaction catalyzed by clostridial phosphotransacetylase.
TLDR
Arguments are developed which indicate that an acyl-enzyme intermediate is extremely improbable in the reaction catalyzed by phosphotransacetylase, as well as showing these binary complexes to be functional and show that they do not dissociate rapidly compared with their rates of catalytic turnover.
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Purification and properties of dioldehydrase, and enzyme requiring a cobamide coenzyme.
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Acetylenic enzyme inactivators. Inactivation of gamma-cystathionase, in vitro and in vivo, by propargylglycine.
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Structure of chymotrypsin-trifluoromethyl ketone inhibitor complexes: comparison of slowly and rapidly equilibrating inhibitors.
TLDR
The crystallographic structures of the complexes of gamma-chymotrypsin with inhibitors 1 and 2 have been determined in order to establish whether structural or conformational differences can be found which account for different kinetic and thermodynamic properties of the two inhibitors.
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3-Deoxy-D-manno-octulosonate-8-phosphate synthase catalyzes the C-O bond cleavage of phosphoenolpyruvate.
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