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Updated: Jul 7, 2026

The Determination of Protease Specificity in Mouse Tissue Extracts by MALDI-TOF Mass Spectrometry: Manipulating PH to Cause Specificity Changes

The Determination of Protease Specificity in Mouse Tissue Extracts by MALDI-TOF Mass Spectrometry: Manipulating PH to Cause Specificity Changes

Published on: May 25, 2018

Protein identification and characterization by mass spectrometry.

S D Patterson¹

¹Amgen, Inc., Thousand Oaks, California, USA.

Current Protocols in Molecular Biology

|February 12, 2008

Summary

New technologies enable rapid protein identification and characterization. Advanced mass spectrometry methods like MALDI-MS and ESI-MS are key for analyzing complex protein mixtures and modifications.

Area of Science:

Proteomics
Analytical Chemistry
Biotechnology

Background:

Accurate protein identification and characterization are crucial in biological research.
Traditional methods can be time-consuming and limited in scope.
Advancements in technology are needed to accelerate proteomic analysis.

Purpose of the Study:

To provide an overview of emerging technologies for rapid protein identification.
To highlight techniques for characterizing proteins, including posttranslational modifications.
To discuss applications in analyzing complex biological samples.

Main Methods:

Correlative approaches for protein identification.
Rapid analysis of posttranslational modifications.
Mass spectrometry techniques, including matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) and electrospray ionization mass spectrometry (ESI-MS).

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Direct mass analysis of gel-separated proteins.

Main Results:

New technologies facilitate faster and more comprehensive protein identification.
Advanced mass spectrometry enables detailed characterization of proteins and their modifications.
These methods are effective for analyzing components within complex mixtures.

Conclusions:

Emerging technologies significantly enhance the speed and accuracy of protein analysis.
MALDI-MS and ESI-MS are powerful tools for modern proteomics.
These advancements are vital for understanding protein function and biological processes.