Polypeptides having cellulolytic enhancing activity and polynucleotides encoding same

1. An isolated 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 NO: 2;

(b) a polypeptide encoded by a polynucleotide comprising SEQ ID NO: 1; and

(c) a fragment of SEQ ID NO: 2 having cellulolytic enhancing activity.

2. The polypeptide of claim 1 , comprising an amino acid sequence having at least 97% identity to amino acids 26 to 253 of SEQ ID NO: 2.

3. The polypeptide of claim 1 , comprising or consisting of the amino acid sequence of SEQ ID NO: 2; or a fragment thereof having cellulolytic enhancing activity.

4. The polypeptide of claim 3 , comprising or consisting of amino acids 26 to 253 of SEQ ID NO: 2.

5. The polypeptide of claim 1 , which is encoded by a polynucleotide comprising or consisting of nucleotides 76 to 832 of SEQ ID NO: 1.

6. The polypeptide of claim 1 , which is encoded by the polynucleotide contained in plasmid pGEM-T-GH61D23Y4 which is contained in E. coil DSM 22882.

7. A method of producing the polypeptide of claim 1 , comprising: (a) cultivating a cell, which in its wild-type form produces the polypeptide, under conditions conducive for production of the polypeptide; and (b) recovering the polypeptide.

8. A detergent composition comprising the polypeptide of claim 1 and a surfactant.

9. A method for degrading or converting a cellulosic material, comprising: treating the cellulosic material with an enzyme composition in the presence of the polypeptide having cellulolytic enhancing activity of claim 1 .

10. The method of claim 9 , further comprising recovering the degraded cellulosic material.

11. The method of claim 10 , wherein the degraded cellulosic material is a sugar.

12. The method of claim 9 , wherein the cellulosic material is pretreated.

13. The method of claim 9 , wherein the enzyme composition comprises one or more enzymes selected from the group consisting of a cellulase, a hemicellulase, an esterase, an expansin, a ligninolytic enzyme, a pectinase, a peroxidase, a protease, and a swollenin.

14. A method for producing a fermentation product, comprising:

(a) saccharifying a cellulosic material with an enzyme composition in the presence of the polypeptide having cellulolytic enhancing activity of claim 1 ;

(b) fermenting the saccharified cellulosic material with one or more fermenting microorganisms to produce the fermentation product; and

(c) recovering the fermentation product from the fermentation.

15. The method of claim 14 , wherein the cellulosic material is pretreated.

16. The method of claim 14 , wherein the enzyme composition comprises one or more enzymes selected from the group consisting of a cellulase, a hemicellulase, an esterase, an expansin, a ligninolytic enzyme, a pectinase, a peroxidase, a protease, and a swollenin.

17. The method of claim 14 , wherein steps (a) and (b) are performed simultaneously in a simultaneous saccharification and fermentation.

18. A method of fermenting a cellulosic material, comprising:

fermenting the cellulosic material with one or more fermenting microorganisms, wherein the cellulosic material is saccharified with an enzyme composition in the presence of a polypeptide having cellulolytic enhancing activity of claim 1 .

19. The method of claim 18 , wherein the fermenting of the cellulosic material produces a fermentation product.

20. The method of claim 18 , wherein the cellulosic material is pretreated before saccharification.

21. The method of claim 18 , wherein the enzyme composition comprises one or more enzymes selected from the group consisting of a cellulase, a hemicellulase, an esterase, an expansin, a ligninolytic enzyme, a pectinase, a peroxidase, a protease, and a swollenin.