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.

Date of Patent:
May. 17, 2016

Filed:

Oct. 24, 2013
Applicant:

Valtion Teknillinen Tutkimuskesus, Espoo, FI;

Inventors:

Satu Hilditch, Helsinki, FI;

Merja Penttilä, Helsinki, FI;

Peter Richard, Helsinki, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 7/44 (2006.01); C12P 21/06 (2006.01); C12N 1/20 (2006.01); C12N 1/00 (2006.01); C12N 9/00 (2006.01); C07H 21/04 (2006.01); C12P 19/02 (2006.01); C12N 9/88 (2006.01); C12P 7/58 (2006.01);
U.S. Cl.
CPC ...
C12P 19/02 (2013.01); C12N 9/88 (2013.01); C12P 7/58 (2013.01); Y02P 20/52 (2015.11);
Abstract

A DNA molecule comprising a fungal gene encoding an enzyme protein capable of converting L-galactonic acid into L-threo-3-deoxy-hexulosonic acid has been cloned and heterologously expressed. The enzyme is involved in the metabolic conversion of sugar acids, which are present in biological waste material such as sugar beet pulp and other pectin comprising material. A microorganism genetically modified to effectively express said enzyme may be used in fermenting biomaterial to desired end products such as ethanol. Alternatively, microorganisms in which the gene has been inactivated may be used to produce L-galactonic acid, which accumulates when the expression of the gene is prevented.


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