Abstract: A method for generating a variant library of DNA sequences starting from at least one DNA starting sequence and including the steps: a) selecting at least two mutation sites in the starting sequence; b) dividing the DNA starting sequence into at least two sequence segments such that at least two of these sequence segments each contain at least one of the mutation sites; c) amplifying the sequence segments by polymerase chain reaction using at least five different oligonucleotides, where at (i) least one of the oligonucleotides can attach to each mutation site; (ii) at least two of the oligonucleotides can attach to at least one mutation site, and (iii) mutations are introduced, via mismatch positions, into the PCR amplificates by the oligonucleotides at the mutation sites where at least two mutations are introduced at at least one of the mutation sites; and d) linking the amplificates to give DNA sequences.

Abstract: A method for producing a nuclease of a gram negative bacterium or a nuclease preparation containing a nuclease of a gram negative bacterium including expression of the nuclease in a gram positive bacterium and subsequent secretion of the nuclease, as well as a nuclease or a nuclease preparation that can be obtained by this method.

Abstract: The invention relates to the use of an amidohydrolase for preparing foodstuffs or stimulants.

Abstract: The invention relates to ketoreductases and the use thereof. The ketoreductases of the invention are particularly useful for enzymatically catalyzing the reduction of ketones to chiral secondary alcohols.

Abstract: The invention relates to a nitrilase having improved activity in the reaction of a nitrile to form the corresponding carboxylic acid, in particular with respect to reacting 2-methylglutaronitrile, 1-(cyanomethyl)cyclohexane-1-carbonitrile, and benzonitrile. The nitrilase according to the invention is related to nitrilase from acidovorax facilis.

Abstract: The invention relates to a nitrilase having improved activity in the reaction of a nitrile to form the corresponding carboxylic acid, in particular with respect to reacting 2-methylglutaronitrile, 1-(cyanomethyl)cyclohexane-1-carbonitrile, and benzonitrile. The nitrilase according to the invention is related to nitrilase from acidovorax facilis.

Abstract: A method for producing a nuclease of a gram negative bacterium or a nuclease preparation containing a nuclease of a gram negative bacterium including expression of the nuclease in a gram positive bacterium and subsequent secretion of the nuclease, as well as a nuclease or a nuclease preparation that can be obtained by this method.

Abstract: A method for generating a variant library of DNA sequences starting from at least one DNA starting sequence and including the following steps: a) selecting at least two mutation sites in the starting sequence; b) dividing the DNA starting sequence into at least two sequence segments in such a way that at least two of these sequence segments each contain at least one of the mutation sites; c) amplifying the sequence segments by polymerase chain reaction with the aid of a total of at least five different oligonucleotides, where at (i) least one of the oligonucleotides can attach to each of the mutation sites; (ii) at least two of the oligonucleotides can attach to at least one mutation site, and (iii) mutations are introduced, via mismatch positions, into the PCR amplificates by the oligonucleotides at the mutation sites where at least two mutations are introduced at least one of the mutation sites; and d) linking the amplificates to give DNA sequences.

Abstract: The invention relates to the use of an amidohydrolase for preparing foodstuffs or stimulants.