Recombinant Enzyme Complexes Enable In Vitro Rubber Polymer Production

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Solution Overview

Problem

Current methods for natural rubber production are inefficient and unable to meet increasing global demand, relying on manual collection from rubber trees and lacking technological advancements.

Innovation Solution

Development of synthetic enzyme complexes (SECs) comprising recombinant enzymes, optionally supported by natural or synthetic lipids, for in vitro rubber polymer production, utilizing cis-prenyltransferase, cis-prenyltransferase binding protein, reaction initiators, and substrates to synthesize rubber polymer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual collection from rubber trees is used, then traditional production method is maintained, but productivity is low and cannot meet increasing global demand

Engineering Contradiction:
Improverubber production efficiencyVSAvoidproduction system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical manual tapping system with a biochemical system using recombinant enzyme complexes. The enzyme complex performs the rubber synthesis function that was previously achieved through manual collection, eliminating the need for physical tree tapping and latex collection operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of production from biological (tree-based) to biochemical (enzyme-based). By using recombinant enzymes in a controlled system, the production process can be optimized for speed, consistency, and scale, directly addressing the productivity bottleneck.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If in vitro production using synthetic enzyme complexes is implemented, then productivity increases and supply security is enhanced, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improverubber polymer production rateVSAvoidsystem assembly and operation simplicity
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent combines multiple functional components (recombinant enzymes, lipids, stabilizing agents) into an integrated synthetic enzyme complex. This merging simplifies the overall system by pre-assembling the catalytic machinery into a single functional unit that can be applied directly to the substrate.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent uses recombinant DNA technology to copy and produce specific enzymes (cis-prenyltransferase and binding protein) that replicate the natural rubber synthesis function. These recombinant enzymes can be produced in large quantities through standard biotech processes, making the system manufacturable.

Inventive Principle:
Principle #26Copying

3Manufacturing precision

If recombinant enzymes are used, then production purity increases and plant-based limitations are overcome, but manufacturing precision and enzyme purification requirements increase

Engineering Contradiction:
Improvepolymer stereospecificity and purityVSAvoidenzyme purification and complex assembly
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent extracts and isolates the specific enzymatic function from the complex plant system. By using recombinant enzymes that perform only the essential cis-prenyltransferase function, the system achieves high purity polymer production without the complexity of maintaining entire plant biosynthesis pathways.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by using highly specific recombinant enzymes that catalyze only the specific reaction needed for polymer formation. The enzymes are designed with precise stereochemistry to produce the desired polymer configuration, ensuring manufacturing precision at the molecular level.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250257370A1Synthetic enzyme complexes for in vitro rubber production
Publication Date: 2025.08.14 THE GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY DEPARTMENT OF HEALTH & HUMAN SERVICES
  • US20250257370A1 patent drawing
  • US20250257370A1 patent drawing
  • US20250257370A1 patent drawing

AI summary

Disclosed herein are recombinant enzymes derived from various rubber-producing plants and the use of those enzymes in the production of natural rubber outside of plant tissues. Systems and methods for the utilization of these enzymes in the production of natural rubber are also provided.