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Thermostable purified endoglucanase from thermophilic bacterium acidothermus cellulolyticus

United States Patent

*** EXPIRED ***
5,110,735
May 5, 1992
View the Complete Patent at the US Patent & Trademark Office
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Cellulase Enzymes for the Conversion of Biomass to Biofuels and Chemicals
A substantially purified high molecular weight cellulase enzyme having a molecular weight of between about 156,000 to about 203,400 daltons isolated from the bacterium Acidothermus cellulolyticus (ATCC 43068) and a method of producing it are disclosed. The enzyme is water soluble, possesses both C.sub.1 and C.sub.x types of enzymatic activity, has a high degree of stability toward heat and exhibits both a high optimum temperature activity and high inactivation characteristics.
Tucker; Melvin P. (Lakewood, CO), Grohmann; Karel (Littleton, CO), Himmel; Michael E. (Littleton, CO), Mohagheghi; Ali (Golden, CO)
Midwest Research Institute (Kansas City, MO)
07/ 412,434
September 26, 1989
CONTRACT ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to contract No. DE AC02-83CH10093 between the United states Department of Energy and the Midwest Research Institute.