The present invention relates to isolated polypeptides having xylanase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.

A cellulase having improved thermostability is disclosed. The cellulase comprises a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is adding a cysteine in N terminal and adding a glycine and a cysteine or adding a proline and a cysteine in C terminal.

Polypeptides having endoglucanase activity, catalytic domains, and polynucleotides encoding the polypeptides or catalytic domains. Nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides or catalytic domains.

Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.

The present invention relates to isolated polypeptides having xylanase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.

The invention relates to temperature-stable polypeptides with -pyranosidase activity. The polypeptide substrates include -glucopyranosides and -xylopyranosides. The polypeptides can be expressed alone or as fusion proteins for example in yeast or bacteria and subsequently purified. The polypeptides according to the invention can be used alone or in a mixture with other enzymes for the degradation of plant raw materials, among others for the enzymatic degradation of biomass containing lignocellulose, in particular hemicellulose and the hemicellulose component xylan. The enzymes are suitable for use in textile processing, as an additive of detergents, or in the food or feed industry.

The present invention provides engineered human alpha-galactosidase polypeptides and compositions thereof. The engineered human alpha-galactosidase polypeptides have been optimized to provide improved thermostability, serum stability, improved cellular uptake, stability under both acidic (pH<4) and basic (pH>7) conditions, reduced immunogenicity, and improved globotriaosylceramide removal from cells. The invention also relates to the use of the compositions comprising the engineered human alpha-galactosidase polypeptides for therapeutic purposes.