Transgenic Microorganisms for Low-Cost L-Piperazic Acid Biosynthesis
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Solution Overview
Problem
The synthesis of enantiopure L-piperazic acid and its derivatives is elusive and expensive, limiting their use as starting materials for bioactive molecules and isotopically labeled compounds for drug discovery.
Innovation Solution
The development of transgenic microorganisms, such as engineered bacteria, that produce L-piperazic acid and derivatives through a biosynthetic pathway, utilizing enzymes like L-N5—OH Ornithine cyclase/dehydratase and N5 hydroxylase, in the absence or low oxygen conditions, to achieve high yields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional multi-step synthetic processes are used to produce L-piperazic acid, then the product can be obtained, but the production cost is high and the process is complex
Solution Approach 1:
The patent replaces traditional chemical synthesis methods with a biological system (transgenic microorganisms) that naturally produces L-piperazic acid through metabolic pathways. This substitution of chemical processes with biological processes simplifies manufacturing and reduces costs while maintaining high productivity
Solution Approach 2:
The transgenic microorganisms are engineered to autonomously produce L-piperazic acid through their own metabolic pathways. The organisms self-regulate the synthesis process using endogenous enzymes and metabolic intermediates, eliminating the need for complex external intervention and multi-step synthetic procedures
2Loss of time
If traditional synthetic methods are used, then L-piperazic acid can be produced, but the process requires multiple steps and is time-consuming
Solution Approach 1:
The patent divides the complex synthesis problem into manageable components by engineering specific enzymatic pathways within the microorganism. The biosynthetic pathway is segmented into discrete enzymatic steps (e.g., arginine biosynthesis, ornithine conversion, cyclization) that occur sequentially within the organism, simplifying the overall process while reducing time
Solution Approach 2:
The transgenic microorganism performs multiple functions within a single system: it grows autonomously, synthesizes precursor molecules through central metabolism, converts precursors to L-piperazic acid through engineered pathways, and secretes or accumulates the product. This multi-functionality consolidates what would traditionally require multiple separate synthetic operations into a single integrated biological system
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 cost-effective and efficient production of enantiopure L-piperazic acid and isotopically labeled derivatives, suitable for use in drug discovery and imaging modalities, avoiding multi-step synthetic processes.
Implementation Method 1
providing a suitable enzyme comprising a N5—OH Ornithine cyclase/dehydratase
Implementation Method 2
providing a suitable enzyme comprising an ornithine N5 hydroxylase
Implementation Method 3
engineered to accumulate piperazic acid and derivatives thereof through a biosynthetic pathway
Data Source
AI summary
Among the various aspects of the present disclosure is the provision of a biological and biochemical production of piperazic acid derived from the newly discovered production pathway for L-piperazic acid. One aspect of the present disclosure includes a transgenic microorganism (e.g., bacteria) engineered to accumulate piperazic acid and derivatives thereof, including a piperazic acid (Piz)-containing product. Another aspect of the present disclosure includes biochemical and biological methods for producing piperazic acid and derivatives thereof, including a piperazic acid (Piz)-containing product. Another aspect of the present disclosure includes compositions and methods of using isotopically labeled piperazic acid and derivatives thereof, including a piperazic acid (Piz)-containing product.