Separation Gel Kinase Substrate Profiling Apparatus
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Solution Overview
Problem
Current methods lack effective assays for identifying kinase substrates and inhibitors, which is crucial for developing targeted therapeutics due to the complexity of kinase activity and its deregulation in diseases like cancer and Alzheimer's, where specific inhibition is desired to avoid unwanted side effects.
Innovation Solution
The development of apparatus and methods using separation gels with inactive enzymes that can be re-activated, allowing for the separation, detection, and analysis of enzyme substrates and inhibitors, specifically utilizing polyacrylamide gels and electrophoresis systems with radioactive, fluorescent, or luminescent labeling to identify kinase substrates and inhibitors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If kinase inhibitors are developed to block specific substrate phosphorylation, then side effects are reduced, but the spectrum of kinase substrates must be known which is currently not available
Solution Approach 1:
The patent performs substrate identification experiments before inhibitor development. The method separates and identifies all substrates of a kinase in advance, creating a substrate spectrum map that guides subsequent drug development efforts to target only disease-relevant substrates.
Solution Approach 2:
The patent uses an intermediary detection system consisting of separation gels and detection reagents that mediate between the kinase-substrate interaction and the researcher's knowledge. This intermediary system captures and visualizes the substrate spectrum information that would otherwise be inaccessible.
2Measurement precision
If enzyme substrates are separated and detected using separation gels, then substrate identification precision is improved, but the complexity of the separation and detection system increases
Solution Approach 1:
The separation gel system is designed to perform multiple functions: separation of proteins by size, enrichment of kinase substrates through in-gel phosphorylation, and detection via multiple labeling methods. This multi-functionality reduces the need for separate apparatus for each step.
Solution Approach 2:
The patent employs different detection parameters (radioactive, fluorescent, or luminescent labeling) that can be selected based on the specific application requirements. This allows optimization of detection sensitivity and specificity without changing the core separation methodology.
3Reliability
If inactive enzymes are re-activated within the separation gel, then enzyme activity is restored for detection, but additional steps are required in the procedure
Solution Approach 1:
The patent combines the enzyme re-activation step with the detection step by incorporating activating agents and detection reagents into the same buffer solution. This merging eliminates separate transfer steps and reduces overall procedural complexity.
Solution Approach 2:
The inactive enzymes within the gel perform self-activation when exposed to appropriate conditions (pH change, reducing agents). The gel matrix itself provides the necessary environment for re-activation, eliminating the need for external activation apparatus.
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
Enables the precise identification and analysis of kinase substrates and inhibitors, facilitating the development of substrate-specific inhibitors with reduced side effects by effectively re-activating enzymes within the gel for detection and analysis, thereby aiding in the treatment of diseases associated with deregulated kinase activity.
Implementation Method 1
Suitable separation means include pH gradient and electrophoresis systems
Implementation Method 2
at least one inactive enzyme that is capable of modifying the at least one enzyme substrate
Implementation Method 3
Exemplary detective labeling means include a radioactive enzyme substrate label
Implementation Method 4
a fluorescent enzyme substrate label
Implementation Method 5
a luminescent label
Data Source
AI summary
The present invention relates to apparatus and methods for separating and detecting enzyme substrates using separation gels. For example, the apparatus and methods can be used to separate and detect kinase substrates for further analysis. The apparatus and methods can also be used to detect enzyme inhibitors, such as kinase inhibitors.