Yeast Mutant Strain via Polypeptide Suppression for Higher Glycolipid Yield
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sophorolipid production methods are costly due to low productivity and high competition with conventional surfactants, necessitating a novel approach to enhance yeast's glycolipid production efficiency.
Innovation Solution
A yeast mutant strain is developed by suppressing or inactivating a polypeptide with the amino acid sequence of SEQ ID NO: 2 or a highly similar sequence, thereby improving glycolipid production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional yeast strains are used for sophorolipid production, then production cost is reduced through existing methods, but productivity remains low and competition with conventional surfactants is weak
Solution Approach 1:
The invention changes the genetic parameter of the yeast strain by suppressing or inactivating the polypeptide encoded by SEQ ID NO: 2, thereby altering the yeast's metabolic parameters to enhance glycolipid production efficiency and achieve yields up to 130% higher than parent strains
Solution Approach 2:
The invention extracts or removes the functional activity of the polypeptide encoded by SEQ ID NO: 2 from the yeast system through suppression or inactivation, eliminating its negative effect on glycolipid production and enabling significant productivity improvement
2Productivity
If gene modification methods are used to improve sophorolipid productivity, then production efficiency increases, but process complexity increases
Solution Approach 1:
The invention simplifies the genetic modification approach by targeting a single polypeptide (SEQ ID NO: 2) for suppression or inactivation, rather than complex multi-gene modification systems, thereby achieving productivity improvement with reduced process complexity
Solution Approach 2:
The invention changes the expression level parameter of a specific polypeptide to suppress or inactivate it, providing a straightforward genetic control mechanism that improves productivity without requiring complex device or process modifications
Data Source
AI summary
Provided is a yeast mutant strain having high glycolipid productivity. The yeast mutant strain, in which expression of a polypeptide consisting of the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence having at least 90% identity to the amino acid sequence of SEQ ID NO: 2 is suppressed or the polypeptide is inactivated.