α-amylase mutants

Details α-amylase mutants α-amylase mutants

2011-08-09

2011-08-09

Fronda, Christian (Department: 1652)

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Hydrolase

C435S183000, C435S252300, C435S320100, C536S023200

Reexamination Certificate

active

07993897

ABSTRACT:
The present invention relates to a method of constructing a variant of a parent Termamyl-like α-amylase, which variant has α-amylase activity and at least one altered property as compared to the parent α-amylase, comprisesi) analysing the structure of the parent Termamyl-like α-amylase to identify at least one amino acid residue or at least one structural part of the Termamyl-like α-amylase structure, which amino acid residue or structural part is believed to be of relevance for altering the property of the parent Termamyl-like α-amylase (as evaluated on the basis of structural or functional considerations),ii) constructing a Termamyl-like α-amylase variant, which as compared to the parent Termamyl-like α-amylase, has been modified in the amino acid residue or structural part identified in i) so as to alter the property, and, optionally,iii) testing the resulting Termamyl-like α-amylase variant with respect to the property in question.

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