Computationally Guided Versatile Peroxidase Mutations for Yeast Expression

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Solution Overview

Problem

The challenge of efficiently producing versatile peroxidases in heterologous hosts for industrial applications is hindered by their complex structure and high labor intensity in directed evolution, limiting their use and optimization.

Innovation Solution

Designing recombinant versatile peroxidases with specific mutations, such as A11S, V15T, A17S, and others, to enhance expression and stability in yeast cells, using computational methods to achieve improved yield and activity profiles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If versatile peroxidases are produced in heterologous hosts, then the enzyme can be utilized for industrial applications, but the complex structure and high labor intensity in directed evolution limit the production efficiency and optimization

Engineering Contradiction:

Improveenzyme production efficiencyVSAvoidenzyme structure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by systematically mutating specific amino acid residues in the versatile peroxidase sequence. Multiple point mutations were introduced at defined positions to optimize enzyme expression, stability, and activity in heterologous hosts, transforming the enzyme's properties through controlled sequence modifications rather than random directed evolution

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs preliminary action by using computational methods to predict and design beneficial mutations before experimental validation. The computational approach identifies promising mutant sequences in advance, allowing selective testing of a reduced number of candidates rather than screening large libraries generated by random mutagenesis

Inventive Principle:

Principle #10Preliminary action

2Reliability

If directed evolution is used to optimize versatile peroxidases, then functional traits can be improved, but the high labor intensity makes it impractical for optimizing multiple natural starting points

Engineering Contradiction:

Improveenzyme functional traitsVSAvoidoptimization time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the mechanical labor-intensive process of directed evolution with computational methods. Instead of manually constructing and screening thousands of clones through random mutagenesis, the invention uses bioinformatics and computational modeling to predict optimal mutations, dramatically reducing the time and labor required while maintaining or improving optimization outcomes

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If ancestral sequence reconstruction is used to optimize versatile peroxidases, then some functional profiles can be generated, but it can produce only one or few enzymes and cannot expose multiple functional profiles encoded among natural homologues

Engineering Contradiction:

Improveenzyme functional profilesVSAvoidnumber of enzyme variants

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent applies universality by designing a computational framework that can analyze multiple natural VP homologues simultaneously and predict mutations applicable across different starting sequences. The method identifies conserved and variable regions that can be systematically mutated to generate diverse functional profiles from multiple parental sequences, rather than being limited to reconstructing a single ancestral enzyme

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The mutated peroxidases exhibit increased yield and functional expression in yeast, demonstrating substantial reactivity profiles and tolerance to environmental conditions, overcoming the limitations of wild-type enzymes.

Implementation Method 1

VPs reduce hydrogen peroxide by oxidizing a wide range of substances

Methodology Applied

Scientific EffectPeroxidase catalysis: Catalysis

Implementation Method 2

oxidation of Mn2+ to Mn3+, which acts as a diffusible mediator, a low-redox potential heme-dependent binding pocket, and a high-redox potential surface-reactive tryptophan radical

Methodology Applied

Scientific EffectRedox reaction: Redox Reactions

Data Source

PatentUS20250327040A1Versatile peroxidases and uses thereof

Publication Date: 2025.10.23 YEDA RES & DEV CO LTD

AI summary

Recombinant peroxidase enzymes are disclosed having mutations that increase yield when expressed in yeast cells as compared to their corresponding wild-type peroxidase enzyme. Methods of generating are also disclosed as well as uses thereof.