The present invention provides three fungal cellulases, their coding sequences, recombinant DNA molecules comprising the cellulase coding sequences, recombinant host cells and methods for producing same. The present cellulases are from Orpinomyces PC-2.

Xylanases having high specific activities from Orpinomyces sp. strain PC-2 are provided as well as methods for their purification. DNA sequences encoding these proteins are also provided.

The present invention provides three fungal cellulases, their coding sequences, recombinant DNA molecules comprising the cellulase coding sequences, recombinant host cells and methods for producing same. The present cellulases are from Orpinomyces PC-2.

The present disclosure provides methods and DNA molecules for the synthesis of heterologous proteins in the fungus Aureobasidium pullulans either intracellularly or with secretion out of the cells using a regulated xylanase promoter and for secreted protein synthesis, a signal sequence. Further described are kits containing host cells for recombinant protein production, a vector containing an XynA transcription regulatory sequence, and instructions for using the vector to transform the host cells.

The present invention relates to increasing the production of a protein of interest from a fugal host. The invention discloses nucleotide sequences comprising, a regulatory region in operative association with xylanase secretion sequence and a gene of interest. The gene of interest encodes a protein selected from a pharmaceutical, nutraceutical, industrial, animal feed, food additive and an enzyme. Preferably, the gene of interest encodes a cellulase, hernicellulase, a lignin degrading enzyme, pectinase, protease, or peroxidase. The present invention also relates to vectors and hosts comprising these nucleic acid sequences, and to methods for the production of a protein of interest.