Genome Mining for Phosphonate Natural Product Discovery
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Solution Overview
Problem
The discovery of new natural products for pharmaceuticals has declined due to high costs and repeated rediscovery of known compounds, with existing methods being inefficient for large-scale discovery, particularly in the field of natural product biosynthesis.
Innovation Solution
A high-throughput genome mining approach is employed to screen over 10,000 Actinobacteria for phosphonic acid natural products, utilizing the pepM gene as a marker to identify strains with phosphonate biosynthetic pathways, and subsequent purification and characterization of novel phosphonate compounds using 31P NMR spectroscopy and mass spectrometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional natural product discovery methods are used, then novel compounds can be found, but the process is extremely laborious and time-consuming
Solution Approach 1:
The patent replaces traditional mechanical/manual natural product discovery methods with genome mining technology. By using bioinformatics tools to analyze genomic data and identify biosynthetic gene clusters, the system automatically discovers novel natural products without laborious manual screening, thus resolving the contradiction between identification accuracy and discovery time.
Solution Approach 2:
The patent performs preliminary genomic sequencing and bioinformatic analysis to identify potential natural product biosynthetic pathways before actual compound discovery. This preliminary action filters out unlikely candidates early, reducing the time required for subsequent experimental validation while maintaining high identification accuracy.
2Productivity
If genome mining is applied to large-scale natural product discovery, then productivity increases, but the complexity of the discovery system increases
Solution Approach 1:
The patent segments the genome mining process into distinct modules: genomic data collection, bioinformatic analysis, biosynthetic gene cluster identification, and candidate compound validation. This segmentation allows each module to be optimized independently, increasing overall productivity while managing system complexity through modular architecture.
Solution Approach 2:
The patent develops a universal genome mining platform that can analyze multiple types of biosynthetic gene clusters for different natural product classes simultaneously. This multi-functional system increases discovery throughput without proportionally increasing complexity, as the same core infrastructure handles diverse analytical tasks.
3Quantity of substance
If conventional purification methods are used for natural products, then compounds can be isolated, but the process is extremely laborious
Solution Approach 1:
The patent replaces conventional mechanical purification methods with targeted isolation strategies based on genomic predictions. By identifying specific biosynthetic gene clusters and their predicted product structures, the system directs purification efforts toward likely candidates, dramatically reducing labor while maintaining or improving compound yield.
Solution Approach 2:
The patent uses bioinformatic analysis and genomic data as intermediaries between gene identification and compound purification. This intermediary step provides precise guidance on which metabolites to target and how to isolate them, simplifying the purification process while increasing efficiency.
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 approach successfully identifies novel phosphonate natural products with diverse bioactivities, such as argolaphos and phosphonocystoximate, and de-replicates the phosphonate biosynthetic repertoire of Actinobacteria, providing a reservoir for new pharmaceutical leads and demonstrating the feasibility of large-scale genome mining for natural product discovery.
Implementation Method 1
all but two characterized phosphonate biosynthetic pathways begin with the enzyme phosphoenolpyruvate mutase, encoded by the pepM gene
Implementation Method 2
subsequent purification and characterization of novel phosphonate compounds using 31P NMR spectroscopy and mass spectrometry
Implementation Method 3
subsequent purification and characterization of novel phosphonate compounds using 31P NMR spectroscopy and mass spectrometry
Data Source
AI summary
The present invention relates to pharmaceutical compositions comprising a phosphonic acid compound, such as a natural product. Such compounds can include, such as an antibiotic or compound with other activity, derived from an Actinobacteria strain having a gene encoding pepM (phosphoenolpyruvate phosphomutase) or a pepM-dependent biosynthetic pathway. The present invention also relates to methods for treating or preventing or reducing the risk of a bacterial infection by administering a therapeutically effective or prophylactically effective amount of a phosphonic acid antibiotic, or a pharmaceutical composition containing such an antibiotic, to a patient or subject in need thereof. The present invention further relates to methods for isolating, purfying, and identifying such phosphonic acid compounds from Actinobacteria strains.