Patent · US Active

Ketol-acid reductoisomerase using NADH

US8911981B2 · kind B2 · utility

31Cited by

8References

16Claims

0Family size

Assignee

Butamax Advanced Biofuels LLC · US

Inventors

Yougen Li · Pennington, US
Der-Ing Liao · Wilmington, US
Mark J. Nelson · Newark, US
Daniel P. Okeefe · Swarthmore, US

Key dates

Filing date	Mar 15, 2013
Grant date	Dec 16, 2014
Priority date	—
Expiry date	Mar 15, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

Methods for the evolution of NADPH specific ketol-add reductoisomerase enzymes to acquire NADH specificity are provided. Specific mutant ketol-acid reductoisomerase enzymes isolated from Pseudomonas that have undergone co-factor switching to utilize NADH are described.

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