DNA Aptamer Binding for Reversible Reverse Transcriptase Inhibition
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Solution Overview
Problem
There is an unmet need for controlling reverse transcriptase function, which can be deleterious in certain instances.
Innovation Solution
Development of DNA aptamers with specific nucleotide sequences that inhibit reverse transcriptase activity, allowing for methods to amplify target DNA sequences and identify aptamers that effectively bind to reverse transcriptase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If reverse transcriptase is used for cDNA synthesis, then molecular biology applications such as RT-PCR and sequencing are enabled, but unwanted reverse transcriptase function becomes deleterious
Solution Approach 1:
The patent introduces DNA aptamers as intermediary molecules that specifically bind to reverse transcriptase, acting as mediators to control and inhibit unwanted reverse transcriptase function while preserving its useful functions in cDNA synthesis applications
Solution Approach 2:
The patent utilizes temperature-dependent binding characteristics of the aptamer-reverse transcriptase complex, where binding occurs at lower temperatures (20-30°C) and dissociation occurs at higher temperatures (45-55°C), enabling controlled inhibition based on temperature parameter changes
2Reliability
If DNA aptamers are used to inhibit reverse transcriptase, then control over reverse transcriptase function is achieved, but the complexity of the system increases
Solution Approach 1:
The DNA aptamers are designed to self-bind to reverse transcriptase through complementary base pairing and structural interactions, providing automatic inhibition without requiring external control mechanisms or complex system engineering
Solution Approach 2:
The system utilizes simple temperature parameter changes to control aptamer binding and dissociation, avoiding the need for complex regulatory mechanisms while achieving reliable control over reverse transcriptase function
3Productivity
If temperature is elevated to release reverse transcriptase from aptamer, then reverse transcriptase activity is restored, but the binding affinity is reduced
Solution Approach 1:
The system employs periodic temperature cycling to alternately bind and release the reverse transcriptase from the aptamer, enabling controlled inhibition during low-temperature phases and activity restoration during high-temperature phases
Solution Approach 2:
The patent exploits the temperature-dependent nature of molecular binding, where increasing temperature reduces binding affinity and enables release of the reverse transcriptase, allowing reversible control of enzyme activity through temperature parameter modulation
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 DNA aptamers provide targeted inhibition of reverse transcriptase, enabling effective amplification and identification of aptamers with high affinity, enhancing control over reverse transcriptase function.
Implementation Method 1
Aptamers are small RNA or DNA molecules that can form secondary and tertiary structures capable of specifically binding proteins or other cellular targets
Implementation Method 2
elevating the temperature of the composition to release the reverse transcriptase from the at least one DNA aptamer
Data Source
AI summary
Disclosed are DNA aptamers. Related compositions and kits are also provided. Also disclosed are methods for amplifying a target DNA sequence using the DNA aptamers, and methods of identifying the DNA aptamers.