Oligonucleotide Detection Reagent for Hydrolase Enzyme Sensitivity
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Solution Overview
Problem
Current methods for detecting hydrolase enzyme activity are limited by high signal-to-noise ratios and lack sensitivity, which hampers accurate diagnosis and drug development, particularly for enzyme inhibitors or activators.
Innovation Solution
A method involving oligonucleotide detection reagents with a targeting agent complement (TAC) and a targeting agent blocker, where the hydrolase enzyme cleaves the reagent at a specific site, destabilizing the hybridization and generating an unblocked oligonucleotide that can be detected, allowing for sensitive enzyme detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional methods for detecting hydrolase enzyme activity are used, then the assay can be performed with simple methodology, but the sensitivity is insufficient due to high signal-to-noise ratios
Solution Approach 1:
The oligonucleotide detection reagent is segmented into distinct functional regions: a targeting agent complement (TAC) region, a hydrolase cleavage site, and a detectable label region. This segmentation allows the TAC to bind to a targeting agent while the cleavage site provides enzyme-specific activity detection, separating the targeting function from the detection function to improve signal-to-noise ratio and sensitivity.
Solution Approach 2:
The patent introduces a targeting agent as an intermediary element that binds to the TAC region. This intermediary creates a stable complex that positions the detectable label in close proximity to the hydrolase cleavage site, allowing the hydrolase enzyme to cleave the substrate and generate a detectable signal. The intermediary amplifies the signal by concentrating the detection components in a specific location.
2Measurement precision
If conventional substrate concentration detection methods are used, then the assay is straightforward, but the specificity and sensitivity for detecting hydrolase enzyme activity are insufficient
Solution Approach 1:
The detection reagent incorporates local quality variations through its structured design: the TAC region provides specific binding affinity for the targeting agent, the hydrolase cleavage site provides enzyme-specific activity, and the detectable label provides signal generation. This local differentiation of functional properties within the single reagent molecule enables simultaneous achievement of high specificity and sensitivity without requiring complex multi-component systems.
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
This approach enhances sensitivity and specificity in detecting hydrolase enzyme activity, enabling more accurate diagnostics and drug development by amplifying the assay signal and reducing noise interference.
Implementation Method 1
the TAC and the targeting agent blocker are hybridized
Implementation Method 2
the hydrolase cleaves the oligonucleotide detection reagent at the hydrolase cleavage site
Data Source
AI summary
The invention relates to methods, compositions, and kits for detection of hydrolase enzyme activity in a sample.