Ubiquitination

Ubiquitin is a small regulatory protein found in most tissues of eukaryotic organisms i.e. it occurs ubiquitously. The addition of ubiquitin to a substrate protein is called ubiquitination or less frequently ubiquitylation. Ubiquitination affects proteins in many ways: it can mark them for degradation via the proteasome, alter their cellular location, affect their activity, and promote or prevent protein interactions.

  • Ubiquitin signaling
  • Antigen processing
  • Apoptosis
  • Biogenesis of organelles
  • Cell cycle and division
  • DNA transcription and repair
  • Differentiation and development
  • Immune response and inflammation
  • Neural and muscular degeneration
  • Morphogenesis of neural networks
  • Modulation of cell surface receptors, ion channels and the secretory pathway
  • Response to stress and extracellular modulators
  • Ribosome biogenesis
  • Viral infection

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