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Title: Useful halophilic, thermostable and ionic liquids tolerant cellulases

Patent ·
OSTI ID:1259651

The present invention provides for an isolated or recombinant polypeptide comprising an amino acid sequence having at least 70% identity with the amino acid sequence of a Halorhabdus utahensis cellulase, such as Hu-CBH1, wherein said amino acid sequence has a halophilic thermostable and/or thermophilic cellobiohydrolase (CBH) activity. In some embodiments, the polypeptide has a CBH activity that is resistant to up to about 20% of ionic liquids. The present invention also provides for compositions comprising and methods using the isolated or recombinant polypeptide.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
9,376,728
Application Number:
13/493,938
OSTI ID:
1259651
Resource Relation:
Patent File Date: 2012 Jun 11
Country of Publication:
United States
Language:
English

References (4)

Biomass pretreatment patent-application September 2008
Evaluation of Three Automated Genome Annotations for Halorhabdus utahensis journal July 2009
Enzyme-Catalyzed Hydrolysis of Cellulose in Ionic Liquids: A Green Approach Toward the Production of Biofuels journal June 2010
Cloning, sequencing, and expression in Escherichia coli of the gene coding for malate dehydrogenase of the extremely halophilic archaebacterium Haloarcula marismortui journal April 1993