Separatome Platform for Chromatography Column Capacity
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Solution Overview
Problem
Current methods for purifying recombinant peptides, polypeptides, and proteins are hindered by inefficient separation techniques, high costs, and the need for extensive purification processes due to host cell contaminants, which reduce column capacity and selectivity in chromatographic separation.
Innovation Solution
A separatome-based protein expression and purification platform that alters the proteome of host cells to reduce contaminant adsorption by identifying and modifying specific genes associated with chromatographic separation techniques, such as column chromatography, to enhance separation efficiency and reduce purification costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional chromatographic separation methods are used to purify recombinant proteins, then purification can be achieved, but column capacity and selectivity are reduced due to host cell contaminant adsorption
Solution Approach 1:
The invention extracts and removes problematic host cell proteins (contaminants) from the host cell proteome before protein expression. By identifying and eliminating specific contaminant proteins that cause non-specific binding to chromatography columns, the system maintains high column capacity while achieving effective purification of recombinant proteins.
Solution Approach 2:
The invention performs preliminary modification of the host cell proteome by deleting or reducing expression of contaminant proteins before the actual protein expression and purification process. This preliminary action prevents the formation of problematic protein mixtures that would otherwise require extensive downstream purification steps.
2Manufacturing precision
If traditional chromatographic separation methods are used to purify recombinant proteins, then purification can be achieved, but the process becomes expensive and time-consuming due to extensive purification steps
Solution Approach 1:
By removing contaminant proteins from the host cell proteome in advance, the invention eliminates the need for multiple extensive purification steps. This extraction of problematic components simplifies the downstream processing workflow and reduces overall purification time while maintaining product quality.
Solution Approach 2:
The invention discards (removes) contaminant proteins from the host cell system before expression, thereby eliminating the need to recover and separate them during downstream processing. This approach converts a complex multi-step recovery process into a simpler, more efficient workflow.
3Productivity
If host cell proteins are not modified, then the host cell can be used for protein expression, but contaminant adsorption reduces separation efficiency in chromatographic purification
Solution Approach 1:
The invention applies local quality modification by selectively deleting or reducing specific contaminant proteins in the host cell proteome while preserving the overall protein expression capability. This targeted modification maintains productivity in affected areas without compromising global host cell function.
Solution Approach 2:
The invention changes the proteomic parameters of the host cell by deleting or reducing expression of specific contaminant proteins. This parameter change in the host cell composition improves chromatographic separation efficiency while maintaining the host cell's ability to express recombinant proteins effectively.
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 increases column capacity and selectivity, reduces the complexity and cost of purification, and enables the production of high-quality recombinant proteins with improved yield and purity by targeting and eliminating interfering host cell peptides and proteins.
Implementation Method 1
host cell contaminants, which reduce column capacity and selectivity in chromatographic separation
Implementation Method 2
chromatographic separation techniques, such as column chromatography
Data Source
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AI summary
Provided is a separatome-based recombinant peptide, polypeptide, and protein expression and purification platform based on the juxtaposition of the binding properties of host cell genomic peptides, polypeptides, and proteins with the characteristics and location of the corresponding genes on the host cell chromosome, such as that of E. coli, yeast, Bacillus subtilis or other prokaryotes, insect cells, mammalian cells, etc. The separatome-based protein expression and purification platform quantitatively describes and identifies priority deletions, modifications, or inhibitions of certain gene products to increase chromatographic separation efficiency, defined as an increase in column capacity, column selectivity, or both, with emphasis on the former. Moreover, the separatome-based protein expression and purification platform provides a computerized knowledge tool that, given separatome data and a target recombinant peptide, polypeptide, or protein, intuitively suggests strategies leading to efficient product purification. The separatome-based protein expression and purification platform is an efficient bioseparation system that intertwines host cell expression systems and chromatography.