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Proteolysis to Identify Protease Substrates: Cleave to Decipher.

Sonali R Bhagwat1, Krishnan Hajela2, Amit Kumar1

  • 1Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, 453552 Simrol, India.

Proteomics
|May 1, 2018
PubMed
Summary

Proteolysis, protein cleavage, is vital for cell signaling and survival. Identifying protease substrates is key for understanding disease and developing new drugs.

Keywords:
Cellular Library of Peptide Substrates (CLIPS)Combined Fractional Diagonal Chromatography (COFRADIC)Terminal Amine Isotopic Labeling of Substrates (TAILS)peptide librarysubstrate Identity

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Proteomics

Background:

  • Proteolysis is a critical post-translational modification involving precise protein cleavage.
  • Protease activity regulates essential cellular processes including growth, differentiation, apoptosis, and survival.
  • Dysregulated proteolysis is linked to various disease states, highlighting the importance of protease characterization.

Purpose of the Study:

  • To review methods for identifying protease substrates.
  • To explore the significance of understanding protease-substrate interactions in cellular pathways.
  • To highlight the potential of protease and substrate research for novel drug discovery.

Main Methods:

  • Library screening approaches for substrate identification.
  • Proteomics-based strategies to discover protease targets.
  • Bioinformatics tools for analyzing protease-substrate relationships.

Main Results:

  • The review summarizes established and emerging techniques for protease substrate identification.
  • It emphasizes the limited current knowledge of the full repertoire of protease substrates.
  • The study underscores the value of these methods in advancing biological understanding.

Conclusions:

  • Characterizing protease substrates is crucial for elucidating their roles in fundamental cellular functions.
  • Understanding protease mechanisms and substrate repertoires opens new avenues for therapeutic interventions.
  • Further research into protease substrates is essential for advancing drug design and treating diseases linked to aberrant proteolysis.