RNA Capping Analysis via Catalytic Cleavage
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Solution Overview
Problem
Current methods for determining the capping degree and orientation of cap structures in RNA molecules are limited, especially for long RNA molecules, and lack precision and efficiency in quality control processes.
Innovation Solution
A method utilizing a catalytic nucleic acid molecule to cleave RNA molecules into 5' terminal and 3' fragments, allowing for the separation and analysis of capped and non-capped fragments, thereby determining the capping degree and orientation of cap structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current methods are used to determine capping degree and orientation, then analysis can be performed, but precision and efficiency are insufficient for long RNA molecules
Solution Approach 1:
The RNA molecule is cleaved into smaller fragments (5' terminal fragment and 3' fragment) by the catalytic nucleic acid molecule, allowing the 5' cap structure to be analyzed in isolation. This segmentation enables precise determination of capping degree and orientation by focusing analysis on the specific 5' terminal region rather than the entire long RNA molecule, thereby improving measurement precision while maintaining efficiency.
2Manufacturing precision
If current methods are used to determine capping status, then analysis is possible, but the method lacks precision for quality control processes
Solution Approach 1:
A catalytic nucleic acid molecule (ribozyme or DNAzyme) is introduced as an intermediary tool to cleave the RNA at a specific site near the 5' end. This intermediary enables precise isolation and analysis of the 5' terminal region containing the cap structure, significantly improving quality control precision for detecting capping status, capping degree, and cap orientation without requiring overly complex analytical equipment.
3Measurement precision
If RNA molecules are analyzed as whole structures, then overall composition is known, but specific 5' terminal structures cannot be precisely determined
Solution Approach 1:
The 5' terminal RNA fragment containing the cap structure is extracted and separated from the rest of the RNA molecule through catalytic cleavage. This extraction allows for focused analysis of the 5' terminal structures (cap presence, capping degree, and orientation) with high precision, while the simplified two-step process (cleavage followed by analysis of the fragment) maintains operational simplicity.
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 precise and efficient means to analyze the capping status of RNA molecules, enhancing the quality control of RNA therapeutics and ensuring optimal translation efficiency.
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
Implementation Method 2
cleaving the RNA molecule with the catalytic nucleic acid molecule
Data Source
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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.