Catalytic RNA Cleavage for Cap Analysis
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Solution Overview
Problem
Current methods for determining the capping degree and orientation of RNA molecules, especially for long RNA molecules, are limited and require complex procedures, making quality control in therapeutic RNA production challenging.
Innovation Solution
A method using a catalytic nucleic acid molecule to cleave RNA molecules into 5' terminal and 3' fragments, allowing for the analysis of cap structures and determining the capping degree and orientation of RNA populations, thereby enhancing the quality control of RNA production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current methods are used to determine capping degree and orientation of RNA molecules, then analysis can be performed, but the procedures become complex and time-consuming especially for long RNA molecules
Solution Approach 1:
The RNA molecule is divided into smaller fragments through site-specific cleavage at defined positions. This segmentation allows the 5' terminal structure to be isolated and analyzed separately from the rest of the long RNA molecule, simplifying the analysis procedure while maintaining measurement precision for capping degree and orientation
Solution Approach 2:
The cleavage step is performed as a preliminary action before analysis to pre-process the RNA sample. By预先 cutting the RNA at specific sites, the method prepares the sample in advance to facilitate easier and more direct determination of capping characteristics, reducing the complexity of subsequent analysis steps
2Measurement precision
If current methods are used for RNA quality control, then capping status can be assessed, but the process lacks rapidity and efficiency
Solution Approach 1:
By segmenting the RNA into manageable fragments through site-specific cleavage, the method enables faster processing and analysis of the 5' terminal structures. This approach maintains accurate capping status assessment while significantly improving analysis speed and throughput for quality control applications
Solution Approach 2:
The catalytic nucleic acid molecule serves as an intermediary that facilitates the cleavage reaction. This intermediary enables rapid and specific cutting of RNA at defined sites, accelerating the overall process while ensuring precise generation of fragments suitable for accurate capping analysis
3Measurement precision
If site-specific cleavage is performed to analyze 5' terminal structures, then analysis specificity is improved, but additional cleavage steps are required
Solution Approach 1:
A catalytic nucleic acid molecule is introduced as an intermediary to perform the site-specific cleavage. This intermediary provides the necessary specificity for cutting at defined positions through complementary base pairing, improving analysis precision while the catalytic nature of the reagent simplifies the procedure by enabling specific cleavage in a single targeted step
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 method provides a specific and rapid analysis of RNA molecules, improving the quality control of RNA production by accurately assessing the capping status and orientation, which is crucial for the efficacy and stability of RNA therapeutics.
Implementation Method 1
cleaving the RNA molecule with the catalytic nucleic acid molecule into a 5′ terminal RNA fragment and at least one 3′ RNA fragment by contacting the RNA molecule with the catalytic nucleic acid molecule under conditions allowing the cleavage of the RNA molecule
Data Source
AI summary
The present invention relates to the field of RNA analysis. In particular, the invention concerns the use of a catalytic nucleic acid molecule for the analysis of an RNA molecule. The invention concerns methods for analyzing the 5′ terminal structures of an RNA molecule having a cleavage site for a catalytic nucleic acid molecule. In particular, the invention concerns a method for determining the presence of a cap structure in an RNA molecule having a cleavage site for a catalytic nucleic acid molecule, a method for determining the capping degree of a population of RNA molecules having a cleavage site for a catalytic nucleic acid molecule, a method for determining the orientation of the cap structure in a capped RNA molecule having a cleavage site for a catalytic nucleic acid molecule and a method for determining relative amounts of correctly capped RNA molecules and reverse-capped RNA molecules in a population of RNA molecules, wherein the population comprises correctly capped and/or reverse-capped RNA molecules that have a cleavage site for a catalytic nucleic acid molecule. Moreover, the present invention provides uses of a catalytic nucleic acid molecule.