Solid-Phase Peptide Library Preparation for Low-Loss Sequencing
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Solution Overview
Problem
Existing methods for polypeptide sequencing face challenges in minimizing polypeptide loss and reducing the amount of polypeptide needed during sample preparation, leading to inefficiencies in determining large-scale protein sequencing information.
Innovation Solution
The development of novel compounds and methods for solid-phase library preparation, including peptide functionalization and sequencing, utilizing compounds of specific formulas and coupling reactions to conjugate peptides to solid supports, followed by degradation and data analysis to determine amino acid sequences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If conventional sample preparation methods are used for polypeptide sequencing, then the sequencing process can be completed, but polypeptide loss occurs and the amount of polypeptide needed is excessive
Solution Approach 1:
The sample preparation process is divided into discrete solid-phase steps (coupling, cleavage, purification) that can be optimized independently. Each step uses specific resins and conditions to minimize loss, allowing the overall process to achieve high efficiency while reducing polypeptide loss through controlled segmentation of the preparation workflow.
Solution Approach 2:
The patent employs parameter changes by optimizing pH, temperature, and reagent concentrations at each solid-phase step to maximize polypeptide recovery. By adjusting these parameters specifically for each stage of the process, the method reduces degradation and loss while maintaining high sequencing efficiency.
2Quantity of substance
If conventional sample preparation methods are used, then sequencing can be performed, but the total amount of polypeptide needed is high
Solution Approach 1:
The method performs preliminary actions by pre-functionalizing solid supports and preparing reagents before the actual sequencing begins. This allows for more efficient use of polypeptide material during the main process, reducing the total amount needed while maintaining high throughput through streamlined workflow.
Solution Approach 2:
The patent implements strategies to recover and reuse polypeptide material that would otherwise be lost during preparation. By recovering valuable polypeptide at each step and incorporating it back into the sequencing process, the method reduces the total quantity needed while maintaining high productivity.
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 minimizes polypeptide loss and reduces the amount of polypeptide required, enhancing the efficiency and accuracy of protein sequencing processes.
Implementation Method 1
using a degradation process of a polypeptide with peptidases to produce an amino acid sequence representative of the polypeptide
Data Source
AI summary
Provided herein are compounds of Formulae (I), (II), (III), and (III-d). Also provided herein are methods of preparation of Formulae (I), (II), and (III-d). Further provided herein are methods of functionalizing or sequencing a peptide by reaction of compounds of Formula (III-d) with peptidases.