Related Experiment Video
Updated: Jun 24, 2025

Quantification of Site-specific Protein Lysine Acetylation and Succinylation Stoichiometry Using Data-independent Acquisition Mass Spectrometry
Published on: April 4, 2018
Substrate and Functional Diversity of Protein Lysine Post-translational Modifications
Bingbing Hao1,2,3, Kaifeng Chen1,2, Linhui Zhai1,4,5
1State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
Lysine post-translational modifications (PTMs) regulate protein functions in health and disease. This review covers lysine PTMs, their regulatory enzymes, proteomics advances, and therapeutic targets for disease treatment.
Area of Science:
- Biochemistry
- Molecular Biology
- Proteomics
Background:
- Lysine post-translational modifications (PTMs) are crucial for diverse biological processes, regulating histone and non-histone proteins.
- Dysregulation of lysine PTMs is linked to various diseases, making their regulatory factors (writers, erasers, readers) therapeutic targets.
Purpose of the Study:
- To review diverse lysine PTMs, their regulatory enzymes, and advances in proteomics for PTM discovery.
- To discuss the biological functions and crosstalk of lysine PTMs on proteins.
- To highlight current druggable targets for disease therapy.
Main Methods:
- Review of current literature on lysine PTMs.
- Summary of mass spectrometry (MS) and antibody-based enrichment technologies for PTM analysis.
- Discussion of proteomics advances in lysine PTM characterization.
Main Results:
- Lysine PTMs play fundamental roles in cellular functions, and their dysregulation is disease-associated.
- MS and affinity enrichment technologies have significantly advanced PTM discovery and decoding.
- Crosstalks between lysine PTMs influence protein function and cellular mechanisms.
Conclusions:
- Global characterization of lysine PTMs is essential for understanding regulatory networks and disease mechanisms.
- Targeting lysine PTM regulatory factors offers promising therapeutic strategies for various diseases.
- Further research into PTM crosstalks and druggable targets will advance disease treatment.
Related Concept Videos
Covalently Linked Protein Regulators
These groups modify specific amino acids in a protein....
Ligand Binding and Linkage
Protein Kinases and Phosphatases
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Phosphorylation
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
Histone Modification
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
Allosteric Proteins-ATCase
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...

