The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2002
Filed:
Apr. 07, 2000
Ricardo Román Cordero Otero, Stellenbosch, ZA;
Márk Gárdonyi, Lund, SE;
Bärbel Hahn-Hägerdal, Lund, SE;
Willem Heber van Zyl, Stellenbosch, ZA;
Eva Anna Viktoria Dackehag, Lund, SE;
Forskarpatent I Syd AB, Lund, SE;
Abstract
The present invention relates to novel nucleic acid sequences which, upon expression in a procaryotic or eucaryotic cell, code for a polypeptide having an elevated specific xylose isomerase activity compared to the wildtype xylose isomerase. They are selected from a) nucleic acid sequences shown in SEQ. ID. No 1; b) the complementary strand of the sequence defined in (a) above; c) nucleic acid sequences which hybridize to the sequences defined in (a) or (b) above; d) nucleic acid sequences which, but for the degeneracy of the genetic code, would hybridize to the sequences defined in (a), (b) or (c) above and which code for the same polypeptide as those defined in (a), (b) or (c) above. The present invention further provides a process of producing ethanol from xylose containing materials comprising contacting cells that express such nucleic acid sequences and novel modified xylose isomerases that advantageously can be applied in the production of fructose syrups.