Organic Solvent-Based Protein Precipitation for Robust Proteome Purification Ahead of Mass Spectrometry

作者： Jessica L. Nickerson1, Venus Baghalabadi1, Ziheng Dang1, Victoria A. Miller2, Sara L. Little2, Alan A. Doucette1 1Department of Chemistry,Dalhousie University, 2Proteoform Scientific Inc.

简介：

Overview

This protocol outlines a solvent-based protein precipitation method designed for efficient recovery and purification of proteome samples. It is optimized for rapid execution, making it suitable for mass spectrometry sample preparation.

Key Study Components

Area of Science

Proteomics
Mass Spectrometry
Sample Preparation

Background

Protein precipitation is a critical step in sample preparation.
Solvent-based methods enhance protein recovery and purity.
Protocols can be adapted for various workflows.
Quick execution is essential for timely analysis.

Purpose of Study

To provide a reliable method for protein precipitation.
To demonstrate the efficiency of solvent-based techniques.
To facilitate mass spectrometry analysis.

Methods Used

Solvent-based protein precipitation protocols.
Vial and semi-automated spin cartridge formats.
Optimized procedures for consistency and speed.
Integration into bottom-up and top-down workflows.

Main Results

Demonstrated high recovery rates of proteins.
Achieved consistent purity levels across samples.
Protocols completed in a matter of minutes.
Effective for preparing samples for mass spectrometry.

Conclusions

Solvent precipitation is an ideal method for protein sample prep.
Protocols are adaptable and efficient.
Facilitates high-quality mass spectrometry analysis.

Frequently Asked Questions

What is protein precipitation?

Protein precipitation is a method used to isolate proteins from a solution by adding a solvent that causes the proteins to aggregate and separate.

How long does the protocol take?

The entire protocol can be completed in just a few minutes.

Can this method be used for different types of samples?

Yes, the protocols are designed to be adaptable for various sample types and workflows.

What are the benefits of using solvent-based precipitation?

Solvent-based precipitation maximizes protein recovery and purity, making it ideal for mass spectrometry.

Is this protocol suitable for automated systems?

Yes, there is a semi-automated approach available using a spin cartridge format.

The present protocol describes solvent-based protein precipitation under controlled conditions for robust and rapid recovery and purification of proteome samples prior to mass spectrometry.

标签: Chemistry, Proteome Purification, Mass Spectrometry, Sample Preparation, Centrifugation, Sodium Chloride, Acetone, Methanol, Chloroform, Ziheng Dang, Victoria Miller, Proteoform Scientific, Protocols, Bottom-up Workflow, Top-down Workflow,