Machine Learning Variant Effect Assessment

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Solution Overview

Problem

Current methods for predicting the effects of genetic variants are limited as they only consider perturbations at one site relative to a reference sequence, failing to account for interactions between multiple genetic variants, which is particularly problematic in complex phenotypes like cancer where multiple mutations occur simultaneously.

Innovation Solution

A machine learning-based approach that assesses the combined impact of multiple genetic variants by using a trained model to generate effect scores for secondary genetic variants, allowing for the prediction of compensatory effects and their magnitudes, and integrating these into various applications such as synthetic biology, personalized medicine, and genetic engineering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional variant effect prediction tools (PolyPhen, SIFT, Provean, GERP) are used, then prediction of single-site genetic variant effects is achieved, but the ability to predict interactions between multiple genetic variants is lost

Engineering Contradiction:
Improveprediction accuracy of single variant effectsVSAvoidability to predict multi-variant interactions
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple single-variant prediction tools (PolyPhen, SIFT, Provean, GERP) into an integrated system that simultaneously evaluates multiple genetic variants and their interactions, enabling both single-variant precision and multi-variant interaction prediction

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated system performs multiple functions: predicting single-variant effects, predicting multi-variant interactions, and providing comprehensive variant effect assessments, making it universally applicable to diverse genetic analysis needs

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If machine learning-based integrated assessment of multiple genetic variants is implemented, then prediction accuracy of multi-variant interactions is improved, but computational complexity increases

Engineering Contradiction:
Improveprediction accuracy of multi-variant effectsVSAvoidcomputational model complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The machine learning model processes genetic variants in structured segments (individual variants and their combinations), breaking down the complex multi-variant assessment into manageable computational units that can be evaluated systematically

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces computational intermediaries (feature extraction layers, embedding representations) that transform raw genetic sequence data into simplified intermediate representations, reducing the complexity burden on subsequent prediction layers

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If comprehensive multi-variant genetic sequence analysis is performed, then prediction accuracy of phenotypic consequences is improved, but analysis time increases

Engineering Contradiction:
Improveaccuracy of phenotypic effect predictionVSAvoidcomputation time for variant assessment
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary filtering and prioritization of genetic variants based on individual variant scores before conducting comprehensive multi-variant interaction analysis, reducing the computational scope and time required for full assessment

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements a tiered analysis approach where essential multi-variant interactions are evaluated first (partial action), providing sufficient accuracy for most applications without performing exhaustive analysis of all possible variant combinations (excessive action)

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS20230402127A1Machine learning-based variant effect assessment and uses thereof
Publication Date: 2023.12.14 INARI AGRICULTURE TECHNOLOGY INC
  • US20230402127A1 patent drawing
  • US20230402127A1 patent drawing
  • US20230402127A1 patent drawing

AI summary

Provided herein are machine learning-based methods for assessing the combined impact of multiple genetic variants, as well as the uses of such methods for various applications, such as in synthetic biology, personalized medicine, agricultural breeding, and genetic engineering. Also provided herein are exemplar computer-readable storage media and electronic devices for performing such methods.