Subtilisin variants and methods related thereto

By substitution of subtilis protease at specific amino acid positions, a protease variant with improved stability and cleaning performance was developed, solving the problem of degradation of the cleaning performance of proteases under high temperature and long-term use in the prior art, and achieving more efficient dirt removal and stability.

CN120112635APending Publication Date: 2025-06-06DANISCO US INC
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Patent Information

Application Number
CN202380063068.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-03-28
Filing Date
2023-08-29
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

Existing subtilisin has shortcomings in stability and soil removal, especially in high temperatures and long-term use, resulting in a degradation of cleaning performance.

Method used

A subtilisin variant was developed that improves the stability and cleaning performance of the protease by substitution at specific amino acid positions. Specifically, this variant has improved net charge and stability at pH 8 and is able to maintain high activity at high temperatures.

Benefits of technology

This subtilisin variant significantly improves detergent stability and dirt removal capabilities, enabling efficient cleaning performance under extended use and high temperature conditions.

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Abstract

Disclosed herein are one or more subtilisin variants, nucleic acids encoding the same, and compositions and methods related to production and use thereof, the one or more subtilisin variants include one or more subtilisin variants having improved stability and / or soil removability as compared to one or more reference subtilisins.
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