Description
Functions both as NADH oxidoreductase and as regulator of apoptosis. In response to apoptotic stimuli, it is released from the mitochondrion intermembrane space into the cytosol and to the nucleus, where it functions as a proapoptotic factor in a caspase-independent pathway. In contrast, functions as an antiapoptotic factor in normal mitochondria via its NADH oxidoreductase activity. The soluble form (AIFsol) found in the nucleus induces 'parthanatos' i.e. caspase-independent fragmentation of chromosomal DNA. Interacts with EIF3G,and thereby inhibits the EIF3 machinery and protein synthesis, and activates casapse-7 to amplify apoptosis. Plays a critical role in caspase-independent, pyknotic cell death in hydrogen peroxide-exposed cells. Binds to DNA in a sequence-independent manner.
Keywords
3D-structure
Acetylation
Alternative splicing
Apoptosis
Charcot-Marie-Tooth disease
Complete proteome
Cytoplasm
Deafness
Direct protein sequencing
Disease mutation
DNA-binding
FAD
Flavoprotein
Isopeptide bond
Membrane
Mental retardation
Mitochondrion
Mitochondrion inner membrane
NAD
Neurodegeneration
Neuropathy
Nucleus
Oxidoreductase
Phosphoprotein
Primary mitochondrial disease
Reference proteome
Transit peptide
Ubl conjugation
Feature
propeptide Removed in mature form
chain Apoptosis-inducing factor 1, mitochondrial
splice variant In isoform 5.
sequence variant In COXPD6; higher DNA binding affinity, partially impaired flavin binding and association with increased parthanatos-linked cell death.