Protein-Polymer Complex via Transglutaminase Binding
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Solution Overview
Problem
Existing protein detection methods, such as ELISA, face challenges in maintaining enzyme activity due to chemical binding methods, and existing enzyme complexes using three-dimensional scaffolds do not utilize flexible one-dimensional synthetic polymers effectively for enhanced enzyme reaction efficiency.
Innovation Solution
A protein-polymer complex is created using a polymer with glutamine or lysine residues, where transglutaminase is used to site-specifically bind proteins, preserving enzyme activity and enabling improved enzyme reaction efficiency at a solid-liquid interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If chemical binding methods are used to introduce enzyme labeling in ELISA, then protein detection can be performed, but the active center of the enzyme is modified and enzyme activity may deteriorate
Solution Approach 1:
The patent introduces a polymer antibody as an intermediary component that binds to the antigen without requiring chemical modification of the enzyme's active center. The polymer antibody serves as a mediator between the antigen and the enzyme labeling system, allowing detection to proceed while preserving enzyme integrity and activity.
Solution Approach 2:
The patent changes the binding parameters by using polymer antibodies with multiple binding sites instead of traditional monoclonal antibodies. This structural parameter change allows for enhanced binding affinity and detection sensitivity without requiring chemical modification that would compromise enzyme activity.
2Productivity
If three-dimensional scaffold structures are used for enzyme complexes, then enzyme organization can be achieved, but flexible one-dimensional synthetic polymer structures are not utilized effectively
Solution Approach 1:
The patent transitions from traditional three-dimensional scaffold structures to flexible one-dimensional polymer chains for organizing enzyme complexes. This dimensional change allows the polymer to adapt its conformation and provide versatile binding capabilities while maintaining effective enzyme organization and reaction efficiency at solid-liquid interfaces.
Solution Approach 2:
The patent creates composite structures by combining synthetic polymers with biological components (enzymes and antibodies). This composite approach leverages the structural flexibility of synthetic polymers while incorporating the specific binding and catalytic functions of biological molecules, achieving both adaptability and productivity.
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 protein-polymer complex enhances protein detection sensitivity and enzyme reaction efficiency while maintaining enzyme activity, offering a cost-effective and versatile method for protein detection and enzyme reactions.
Implementation Method 1
transglutaminase is used to site-specifically bind proteins
Implementation Method 2
a polymer having a glutamine (Gln) residue or a primary amine on a side chain, wherein either a protein having a primary amine is bound to the glutamine (Gln) residue, or a protein having a glutamine (Gln) residue is bound to the primary amine
Implementation Method 3
a primary antibody for a target substance (antigen) adsorbed to the surface of a solid phase is bound via an antigen-antibody reaction
Data Source
AI summary
Provided is a protein-polymer complex which is capable of detecting a target with good sensitivity. Specifically provided is a protein-polymer complex comprising a polymer having a glutamine (Gln) residue or a primary amine on a side chain, wherein either a protein having a primary amine is bound to the glutamine (Gln) residue, or a protein having a glutamine (Gln) residue is bound to the primary amine.