DEGRONOPEDIA

DEGRONOPEDIA maps degrons recognized by E3 ubiquitin ligases across proteomes and annotates adjacent ubiquitination-capable residues, disordered regions, post-translational modifications, mutations, and evolutionary conservation while predicting N-/C-terminal stability with machine learning and simulating proteolysis to support analysis of degron-mediated protein degradation.

Key Features:

• Degron Identification: Searches for degrons across proteomes and maps adjacent residues capable of undergoing ubiquitination and disordered regions that may serve as protein unfolding seeds.
• Post-Translational Modifications (PTMs) and Mutations: Annotates PTMs and mutations that can influence degron availability and recognition by E3 ubiquitin ligases.
• Evolutionary Conservation Assessment: Evaluates conservation of degrons across species to assess their functional significance.
• Terminal Stability Prediction: Applies machine learning to predict N-/C-terminal stability and simulates proteolysis to identify potential degrons in newly formed termini.
• Experimental Validation and Practical Application: Includes experimental validation examples, such as confirming a predicted C-terminal destabilizing motif and identifying a post-proteolytic degron.

Scientific Applications:

• Protein Degradation Pathway Analysis: Supports investigation of molecular mechanisms governing proteostasis and degron-mediated substrate selection.
• Disease Mechanism Studies: Facilitates studies of diseases with dysregulated protein degradation, including neurodegenerative disorders and cancer.
• Drug Discovery: Aids discovery efforts targeting ubiquitin-proteasome system components and E3 ubiquitin ligase interactions.

Methodology:

Computational methods include proteome-wide degron searches, mapping of ubiquitination-capable residues, identification of disordered regions, annotation of PTMs and mutations, evolutionary conservation assessment, machine learning for N-/C-terminal stability prediction, and simulations of proteolytic events.