A. pernix Protease Culture Supernatant for Prion Degradation
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Solution Overview
Problem
Current methods for degrading prion proteins are inefficient and costly, often requiring extreme conditions such as high temperatures, acidic or alkaline pH, and aggressive chemicals, which complicate the process and increase costs, while existing proteolytic enzymes from Aeropyrum pernix have shown limited effectiveness due to purification issues that separate essential components.
Innovation Solution
The use of A. pernix serine protease in the form of a culture supernant filtrate, specifically the R30 fraction, for the ex vivo degradation of prion proteins, which maintains activity at neutral pH and elevated temperatures without prior chemical or physical treatment, effectively degrading both prion and protein aggregates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard sterilization procedures (high temperature, aggressive detergents) are used on surgical equipment, then sterilization is achieved, but prion proteins remain resistant and equipment cannot be properly sterilized
Solution Approach 1:
The patent uses proteolytic enzymes from A. pernix that maintain activity at neutral pH and elevated temperatures (up to 100°C), changing the operational parameters from extreme conditions to milder conditions that still achieve effective prion degradation while being less harmful to equipment and environment
Solution Approach 2:
The patent introduces proteolytic enzymes as intermediary substances that mediate between the prion proteins and the degradation process, enabling selective breakdown of prions without requiring extreme physical or chemical conditions that would damage equipment
2Reliability
If proteolytic enzymes are purified from A. pernix, then enzyme activity is isolated, but effectiveness decreases due to separation from essential components
Solution Approach 1:
The patent extracts only the essential proteolytic enzyme activity from the A. pernix culture supernatant while leaving other components behind, achieving effective prion degradation without the need for complex purification steps that would remove essential cofactors or assist molecules
Solution Approach 2:
The culture supernatant system is self-sufficient, containing all necessary components for effective prion degradation within the supernatant matrix itself, eliminating the need for external purification or addition of separate components
3Productivity
If extreme conditions (high temperature, acidic/alkaline pH, aggressive chemicals) are used for prion degradation, then degradation is achieved, but process complexity and costs increase
Solution Approach 1:
The patent changes the operational parameters from extreme conditions (high temperature, extreme pH, aggressive chemicals) to milder conditions (neutral pH, elevated but not extreme temperatures) while maintaining effective prion degradation through the use of thermostable proteolytic enzymes
4Reliability
If current proteolytic enzyme methods are used for prion degradation, then some degradation occurs, but the process is inefficient and costly
Solution Approach 1:
The patent optimizes the operational parameters including temperature (up to 100°C), pH (neutral), and substrate concentration to maximize degradation efficiency, achieving rapid and complete prion degradation even at high substrate concentrations
Solution Approach 2:
The patent uses a disposable culture supernatant formulation that can be applied directly without complex preparation or recovery steps, reducing overall process costs despite the enzyme being naturally occurring and requiring no elaborate purification infrastructure
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 A. pernix serine protease in the R30 fraction achieves rapid and efficient degradation of prion proteins, maintaining effectiveness even at high substrate concentrations, and can be used for sterilizing equipment, cleaning textiles, and processing food, offering a cost-effective and environmentally friendly solution.
Implementation Method 1
Protein and/or prion protein is degraded with extracellular proteolytic enzymes of hyperthermophilic Aeropyrum pernix K1
Implementation Method 2
maintaining effectiveness even at high substrate concentrations, and can be used for sterilizing equipment... at elevated temperatures
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention relates to compositions and methods for protein and/or prion protein degradation. Protein and/or prion protein is degraded with extracellular proteolytic enzymes of hyperthermophilic Aeropyrum pernix K1, for example A. pernix serine protease.