Novozymes A/s

Other

Novo Nordisk A/s

Frank Mikkelsen

Peter Kamp Hansen

Peter Bauditz

Kim Vilbour Andersen

Carsten Schau Andersen

Mads Eskelund Bjornvad

Mads Norregaard-Madsen

Peter Markvardsen

Tina Sejersg&aring;rd Fan&oslash;

Borge Diderichsen

Jeremy S Minshull

Torben Vedel Borchert

Jon Edward Ness

Lorraine Joan Giver

Joel R Cherry

Mark D Welch

Peter Hansen Kamp

Kim Andersen Vilbour

The present invention relates to enzymes produced by mutating the genes for a number of subtilases and expressing the mutated genes in suitable hosts are presented. The enzymes exhibit improved wash performance in any detergent in comparison to their wild type parent enzymes.

Protease variants and compositions

The present invention relates to protease subtilase enzyme, characterized by an insertion in at least one active site loop. The enzymes exhibit improved wash performance in a detergent in comparison to its parent enzyme if it is a subtilase variant.

The present invention relates to subtilase enzymes of the I-S1 and I-S2 sub-groups having an additional amino acid in the active site loop (c) region from positions 125 to 132. The variant subtilases of the present invention exhibit improved wash performance in a detergent in comparison to its parent enzyme.

Subtilase enzymes

The present invention relates to novel subtilases having an improved wash performance on egg stains. The present invention also relates to isolated nucleic acid sequences encoding the subtilases, nucleic acid constructs, recombinant expression vectors, host cells comprising the nucleic acid construct, and methods for producing and using the subtilases of the invention. Further, the present invention relates to cleaning and detergent compositions comprising the subtilase enzymes of the invention as well as to use of such enzymes in detergent compositions and for removal of egg stains.

Subtilase enzymes having an improved wash performance on egg stains

The present invention relates to subtilase enzymes of the I-S1 and I-S2 sub-groups having an additional amino acid in the active site loop (b) region from positions 95 to 103. The variant subtilases of the present invention exhibit improved wash performance in a detergent in comparison to its parent enzyme.

The present invention relates to the use of a subtilase variant for removal of egg stains from laundry or from hard surfaces, where the subtilase variant comprises at least one additional amino acid residue in the active site loop (b) region from position 95 to 103 (BASBPN numbering). These subtilase variants are useful exhibiting excellent or improved wash performance on egg stains when used in e.g. cleaning or detergent compositions, including automatic dishwash compositions. The present invention also relates to novel subtilase variants, to isolated DNA sequences encoding the variants, expression vectors, host cells, and methods for producing and using the variants of the invention. Further, the present invention relates to cleaning and detergent compositions comprising the variants of the invention.

Subtilase variants having an improved wash performance on egg stains

A protease subtilase enzyme, characterized by an insertion in at least one active site loop. The enzymes exhibit improved wash performance in a detergent in comparison to its parent enzyme if it is a subtilase variant.

The invention relates to a method of identifying enzymes suitable for use in detergents, especially the selection of specific enzyme variants among a large number of such variants created through random mutagenesis. The method comprises that enzyme variants to be selected are in a mixture of enzyme variants which are each displayed on the surface of cells or phage particles, and (i) introducing the mixture into a detergent composition under conditions that will have a negative impact on the activity of or inactivate most of said enzyme variants, (ii) reacting said mixture with a catcher molecule that will bind specifically only to enzyme variants that exhibit the property sought for, (iii) separating said complex from the remaining parts of said mixture, (iv) dissociate said complex to isolate such cell(s) or phage(s) that displayed said enzyme variant without the catcher molecule, (v) introducing said phage into a host wherein it will multiply, or (va)cultivating said cell under conditions conducive to its multiplication, (vi) isolating a DNA molecule coding for said enzyme variant from the genome of said cell or phage, and (vii) determining the sequence of said DNA molecule. The invention further relates to specific materials used in said method, the enzymes selected by use of the method, and to detergent compositions comprising aid enzymes.

Growing community of inventors

Valby, Denmark

Frank Mikkelsen