The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 26, 2022

Filed:

May. 19, 2020
Applicant:

Toyama Prefectural University, Toyama, JP;

Inventors:

Yasuhisa Asano, Toyama, JP;

Daisuke Matsui, Toyama, JP;

Yuko Oku, Toyama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07K 4/12 (2006.01); C12N 9/88 (2006.01); C12N 15/09 (2006.01); C12N 9/00 (2006.01); C12N 15/01 (2006.01); C12N 15/70 (2006.01);
U.S. Cl.
CPC ...
C07K 4/12 (2013.01); C12N 9/00 (2013.01); C12N 9/88 (2013.01); C12N 15/01 (2013.01); C12N 15/09 (2013.01); C12N 15/70 (2013.01); C12Y 101/03 (2013.01); C12Y 104/01002 (2013.01);
Abstract

A method for producing an active-form mutant enzyme, by specifying a protein of which a native form exhibits an enzyme activity but which has 10% or less enzyme activity of the native form when a gene of the protein is expressed to provide an inactive-form enzyme; determining a sequence conservation of amino acid residues in an amino acid sequence of the inactive-form enzyme and specifying amino acid residue(s) for which sequence conservation in the inactive-form enzyme is lower than sequence conservation of other amino acid(s) of the same residue; preparing a gene having a base sequence that codes for the amino acid sequence of the inactive-form enzyme in which at least one said specified amino acid residue is substituted by another amino acid with a higher sequence conservation; and expressing the gene to obtain an enzyme that exhibits an enzyme activity of the native form protein.


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