PLANT XYLOSE ISOMERASE

摘要

The present invention relates to a neucleic acid sequence which codes upon expression in a prokaryotic or eucaryotic host cell for a polypeptide having xylose isomerase activity, which nucleic acid sequence is selected from: a) the nucleic acid sequences shown in SEQ. ID. No. 1 and SEQ. ID. No. 2 or the complementary strands thereof; b) nucleic acid sequences which hybridise to the sequences defined in (a) above; c) nucleic acid sequences which, but for the degeneracy of the genetic code, would hybridise to the sequences defined in (a) or (b) above and which code for the same polypeptides as those defined in (a) or (b) above; and to a process of producing ethanol from lignocellulosic materials comprising contacting cells that express such nucleic acid sequences.