Abstract: The present invention relates to a method for the enzymatic decarboxylation of malonic acid (propanedioic acid) derivatives catalyzed by enzymes structurally and/or functionally related to arylmalonate decarboxylase (AMDase) as isolated from microorganisms of the genus Bordetella. The present invention also relates to novel enzymes with a decarboxylase activity, useful for performing the claimed method, mutants thereof, corresponding coding sequences and expression systems, methods of preparing said novel enzymes, and screening methods for obtaining further suitable enzymes also having said decarboxylase activity.

Abstract: The present invention relates to a method for the enzymatic decarboxylation of malonic acid (propanedioic acid) derivatives catalyzed by enzymes structurally and/or functionally related to arylmalonate decarboxylase (AMDase) as isolated from microorganisms of the genus Bordetella. The present invention also relates to novel enzymes with a decarboxylase activity, useful for performing the claimed method, mutants thereof, corresponding coding sequences and expression systems, methods of preparing said novel enzymes, and screening methods for obtaining further suitable enzymes also having said decarboxylase activity.

Abstract: The present invention relates to a system comprising a genetic construct a riboswitch operably linked to a regulatory sequence, and a second genetic construct a coding sequence whose expression is capable of being regulated by a gene product of the first construct. Also provided is a genetic construct comprising one or more riboswitches for regulation of gene expression, wherein preferably a spacer sequence is provided downstream of the riboswitch to enhance expression of a coding sequence which is operably linked to a riboswitch. Ligands, kits, methods, host cells and expression systems are also provided.

Abstract: A process for preparing a second compound stereo-selectively is described. The process comprises reacting a substrate comprising at least one first compound with a reagent in the presence of a biological catalyst and a solvent comprising at least one (hydro)fluorocarbon so as to convert a first compound into the second compound.

Abstract: The present invention relates to a method for the enzymatic decarboxylation of malonic acid (propanedioic acid) derivatives catalyzed by enzymes structurally and/or functionally related to arylmalonate decarboxylase (AMDase) as isolated from microorganisms of the genus Bordetella. The present invention also relates to novel enzymes with a decarboxylase activity, useful for performing the claimed method, mutants thereof, corresponding coding sequences and expression systems, methods of preparing said novel enzymes, and screening methods for obtaining further suitable enzymes also having said decarboxylase activity.

Abstract: A process for preparing a third compound stereo-selectively which process comprises reacting a substrate comprising a first enantiomeric compound with a racemisation catalyst to give a second enantiomeric compound, and concurrently reacting the second enantiomeric compound in the presence of a biological catalyst to give the third compound, wherein the process is performed in a solvent comprising at least one (hydro) fluorocarbon. The biological catalyst is preferably an enzyme. The substrate preferably comprises a racemate of the first and second enantiomeric compounds. The second enantiomeric compound may be reacted with a reagent, such as acyl donor, to form the third compound in the presence of the biological catalyst.

Abstract: A process for preparing a second compound stereo-selectively is described. The process comprises reacting a substrate comprising at least one first compound with a reagent in the presence of a biological catalyst and a solvent comprising at least one (hydro)fluorocarbon so as to convert a first compound into the second compound.