Regeneration of cofactors for use in biocatalysis.

Cofactor regeneration – an important aspect of biocatalysis

Biocatalysis has made tremendous advances in the field of synthesis of industrially important products and intermediates. Cofactors are an important part of many enzymes which are involved in biocatalysis. These cofactors are expensive and stoichiometric additions are not economically feasible. This necessitates the in situ cofactor regeneration in biocatalytic processes. Various methods of reg...

Regeneration of Cofactors for Enzyme Biocatalysis

Cofactor regeneration by a soluble pyridine nucleotide transhydrogenase for biological production of hydromorphone.

We have applied the soluble pyridine nucleotide transhydrogenase of Pseudomonas fluorescens to a cell-free system for the regeneration of the nicotinamide cofactors NAD and NADP in the biological production of the important semisynthetic opiate drug hydromorphone. The original recombinant whole-cell system suffered from cofactor depletion resulting from the action of an NADP(+)-dependent morphi...

A water-forming NADH oxidase from Lactobacillus pentosus suitable for the regeneration of synthetic biomimetic cofactors

The cell-free biocatalytic production of fine chemicals by oxidoreductases has continuously grown over the past years. Since especially dehydrogenases depend on the stoichiometric use of nicotinamide pyridine cofactors, an integrated efficient recycling system is crucial to allow process operation under economic conditions. Lately, the variety of cofactors for biocatalysis was broadened by the ...

Nanoparticle-supported multi-enzyme biocatalysis with in situ cofactor regeneration.

Although there have been a long history of studying and using immobilized enzymes, little has been reported regarding the nature of immobilized cofactors. Herein we report that cofactor NAD(H) covalently attached to silica nanoparticles successfully coordinated with particle-immobilized enzymes and enabled multistep biotransformations. Specifically, silica nanoparticle-attached glutamate dehydr...