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Method for increasing thermostability in cellulase ennzymes

Patent ·
OSTI ID:570396

The gene encoding Acidothermus cellulolyticus E1 endoglucanase is cloned and expressed in Pichia pastoris. A new modified E1 endoglucanase enzyme comprising the catalytic domain of the full size E1 enzyme demonstrates enhanced thermostability and is produced by two methods. The first method of producing the new modified E1 is proteolytic cleavage to remove the cellulose binding domain and linker peptide of the full size E1. The second method of producing the new modified E1 is genetic truncation of the gene encoding the full size E1 so that the catalytic domain is expressed in the expression product. 8 figs.

Research Organization:
Midwest Research Institute
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC36-83CH10093
Assignee:
Midwest Research Inst., Kansas City, MO (United States)
Patent Number(s):
US 5,712,142/A/
Application Number:
PAN: 8-604,913
OSTI ID:
570396
Country of Publication:
United States
Language:
English

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