Discovering the landscape of protein modifications

Area of Science:

• Biochemistry
• Molecular Biology
• Proteomics

Background:

• Protein modifications are essential for cellular functions across all domains of life.
• Early research in the 20th century identified non-canonical amino acids through chemical hydrolysis.
• Mass-spectrometry-based proteomics has led to the discovery of over 500 distinct protein modifications.

Purpose of the Study:

• To review the historical discovery of key post-translational modifications.
• To quantify the current landscape of covalent protein adducts.
• To assess the future role of computational tools in discovering new protein modifications and their functions.

Main Methods:

• Historical literature review of protein modification discoveries.
• Quantitative analysis of the known landscape of covalent protein adducts.
• Assessment of emerging computational tools (data science, machine learning, AI) in proteomics.

Main Results:

• Over 500 distinct protein modifications have been identified to date.
• Computational tools are increasingly vital for advancing the field.
• Significant progress is anticipated in discovering novel modifications and elucidating their biological roles.

Conclusions:

• The field of protein modifications has evolved significantly from early chemical analyses to modern high-throughput techniques.
• New computational approaches promise to revolutionize the discovery and functional characterization of protein modifications.
• Understanding protein modifications is critical for comprehending cellular biology.