Abstract: The present invention provides variants of a parent cellulase, such as, e.g., a cellulase classified in family 45 such as a Humicola insolens 43 kD endoglucanase, comprising a cellulose binding domain (CBD), a catalytically active domain (CAD), and a region linking the CBD and CAD (the linking region), wherein one or more amino acid residues of the CBD, CAD, or linking region is deleted or substituted by one or more amino acid residues and/or one or more amino acids are added to the linking region and/or another CBD is added at the opposite end of the CAD. Such variants have improved properties as regards, e.g., alkaline activity, compatibility with detergent composition ingredients, particular soil removal, color clarification, defuzzing, depilling, harshness reduction, and sensitivity to anionic surfactants. Such variants are useful, e.g., in detergent compositions, for textile treatment, in paper pulp processing, for animal feed, and for stone-washing of jeans.

Abstract: A cellulase variant of a parent cellulase, e.g. a cellulase classified in family 45 such as a Humicola insolens 43 kD endoglucanase, comprising a cellulose binding domain (CBD), a catalytically active domain (CAD) and a region linking the cellulose binding domain and catalytically active domain (the linking region), wherein one more amino acid residues of the CBD, CAD or linking region is deleted or substituted by one or more amino acid residues and/or one or more amino acids are added to the linking region and/or another CBD is added at the opposite end of the catalytically active domain, has improved properties as regards e.g. alkaline activity, compatibility with detergent composition ingredients, particulate soil removal, color clarification, defuzzing, depilling, harshness reduction, and sensitivity to anionic surfactants and peroxidase bleaching systems and is useful e.g. in detergent compositions, for textile treatment, in paper pulp processing, for animal feed and for stone washing of jeans.