Patent · US Active

Selection of ADH in genetically modified cyanobacteria for the production of ethanol

US8163516B2 · kind B2 · utility

13Cited by

4References

8Claims

0Family size

Assignee

Algenol Biofuels, Inc. · US

Inventors

Ulf Dehring · Fredersdorf, DE
Dan Kramer · Berlin, DE
Karl Ziegler · Zeuthen, DE

Key dates

Filing date	Feb 9, 2009
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Feb 9, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/10
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

The present invention discloses genetically-modified cyanobacteria with ethanol-production capabilities enhanced over the currently-reported art, and methods of making such cyanobacteria. The invention provides a genetically modified photoautotrophic, ethanol producing host cell comprising an overexpressed pyruvate decarboxylase enzyme converting pyruvate to acetaldehyde and an overexpressed Zn2+ dependent alcohol dehydrogenase enzyme converting acetaldehyde to ethanol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.