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:
Jun. 10, 2014
Filed:
Sep. 14, 2012
Ronald E. Hector, Washington, IL (US);
Bruce S. Dien, Peoria, IL (US);
Michael A. Cotta, Edelstein, IL (US);
Ronald E. Hector, Washington, IL (US);
Bruce S. Dien, Peoria, IL (US);
Michael A. Cotta, Edelstein, IL (US);
The United States of America, as represented by the Secretary of Agriculture, Washington, DC (US);
Abstract
A xylose isomerase (XI) enzyme which exhibits increased activity and affinity for xylose is produced by strain TC2-24 of the rumen bacterium,. The gene encoding this enzyme may be used to produce improved recombinant yeast capable of utilizing xylose. The recombinant yeast are preferably transformed with heterologous polynucleotide sequences coding both theXI, and the xylulokinase (XKS) of aspecies. Yeast transformed with the polynucleotide sequences coding both of these XI and XKS exhibit significantly increased xylose utilization and cell growth on a culture medium containing xylose as the sole carbon source, in comparison to yeast transformed with XKS and XI from other sources.