Proteolytic post-translational modification of proteins: proteomic tools and methodology

Area of Science:

• Biochemistry
• Proteomics
• Molecular Biology

Background:

• Proteolytic processing is a crucial post-translational modification.
• It involves specific hydrolysis of peptide bonds by proteases.
• This cleavage generates new protein termini and can alter biological activities.

Purpose of the Study:

• To provide an overview of proteomics-based methods for studying proteolytic processing.
• To highlight contemporary techniques in degradomics and terminomics.
• To discuss emerging applications for in vivo analysis of proteolytic events.

Main Methods:

• Overview of contemporary proteomics-based methods.
• Discussion of specific quantitation techniques.
• Considerations for data analysis and curation in proteomics.

Main Results:

• Degradomics and terminomics have emerged as significant proteomics subfields.
• These fields characterize proteolysis products and natural protein termini.
• New applications enable in vivo analysis of proteolytic events.

Conclusions:

• Proteomics offers powerful tools to study proteolytic processing.
• Degradomics and terminomics are advancing our understanding of protein regulation.
• In vivo analysis of proteolysis is becoming increasingly feasible.