Apoptosome: the cellular engine for the activation of caspase-9

Structure. 2002 Mar;10(3):285-8. doi: 10.1016/s0969-2126(02)00732-3.

Abstract

Characterization of the apoptosome by cryo-EM reveals a wheel-shaped heptameric assembly involving Apaf-1 and cytochrome c. This structure provides a framework for understanding the activation mechanisms of caspase-9, an important initiator caspase in apoptosis.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Apoptosis / physiology*
  • Apoptotic Protease-Activating Factor 1
  • Caspase 9
  • Caspases / chemistry*
  • Caspases / metabolism*
  • Cryoelectron Microscopy
  • Cytochrome c Group / chemistry*
  • Dimerization
  • Enzyme Activation
  • Models, Molecular
  • Protein Structure, Tertiary*
  • Proteins / chemistry*

Substances

  • Apoptotic Protease-Activating Factor 1
  • Cytochrome c Group
  • Proteins
  • Caspase 9
  • Caspases