Patent ID: 8835717

Claim:
A nucleic acid construct comprising an isolated polynucleotide encoding a polypeptide having cellulolytic enhancing activity selected from the group consisting of (a) a polypeptide comprising an amino acid sequence having at least 95% sequence identity to amino acids 26 to 253 of SEQ ID NO: 2; (b) a polypeptide encoded by a polynucleotide that hybridizes under high stringency conditions with the full-length complement of nucleotides 76 to 832 of SEQ ID NO: 1, wherein high stringency conditions are defined as prehybridization and hybridization at 42° C. in 5×SSPE, 0.3% SDS, 200 mg/ml sheared and denatured salmon sperm DNA, and 50% formamide for 12 to 24 hours, and washing three times each for 15 minutes using 2×SSC, 0.2% SDS at 65° C.; (c) a polypeptide encoded by a polynucleotide comprising a nucleotide sequence having at least 95% identity to nucleotides 76 to 832 of SEQ ID NO: 1; and (d) a fragment of SEQ ID NO: 2 having cellulolytic enhancing activity; wherein the polynucleotide is operably linked to one or more heterologous control sequences that direct the production of the polypeptide in an expression host.