Probable oxidoreductase that has a dual role in controlling cellular life and death; during apoptosis, it is translocated from the mitochondria to the nucleus to function as a proapoptotic factor in a caspase-independent pathway, while in normal mitochondria, it functions as an antiapoptotic factor via its 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.
Specificity
Natural and recombinant Rat Apoptosis-inducing factor 1, mitochondrial
Subcellular Location
Mitochondrion intermembrane space Mitochondrion inner membrane Cytoplasm Cytoplasm perinuclear region Nucleus Proteolytic cleavage during or just after translocation into the mitochondrial intermembrane space (IMS) results in the formation of an inner-membrane-anchored mature form (AIFmit). During apoptosis, further proteolytic processing leads to a mature form, which is confined to the mitochondrial IMS in a soluble form (AIFsol). AIFsol is released to the cytoplasm in response to specific death signals, and translocated to the nucleus, where it induces nuclear apoptosis. Colocalizes with EIF3G in the nucleus and perinuclear region.
"Cloning and characterization of rat apoptosis-inducing factor: implications for DNA fragmentation in cerebral ischemia." Cao G., Sheng L., Pei W., Chen J. Submitted (2001-05) to the EMBL/GenBank/DDBJ databases
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s) Cited for: NUCLEOTIDE SEQUENCE [MRNA]
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s) Cited for: PROTEIN SEQUENCE OF 378-386;IDENTIFICATION BY MASS SPECTROMETRY