Gene Set: BIOCARTA_MITOCHONDRIA_PATHWAY

Standard name BIOCARTA_MITOCHONDRIA_PATHWAY
Systematic name M16257
Brief description Role of Mitochondria in Apoptotic Signaling
Full description or abstract Mitochondria participate in apoptotic signaling pathways through the release of mitochondrial proteins into the cytoplasm. Cytochrome c, a key protein in electron transport, is released from mitochondria in response to apoptotic signals, and activates Apaf-1, a protease released from mitochondria. Activated Apaf-1 activates caspase-9 and the rest of the caspase pathway. Smac/DIABLO is released from mitochondria and inhibits IAP proteins that normally interact with caspase-9 to inhibit apoptosis. Apoptosis regulation by Bcl-2 family proteins occurs as family members form complexes that enter the mitochondrial membrane, regulating the release of cytochrome c and other proteins. TNF family receptor that cause apoptosis directly activate the caspase cascade, but can also activate Bid, a Bcl-2 family member, which activates mitochondria-mediated apoptosis. Bax, another Bcl-2 family member, is activated by this pathway to localize to the mitochondrial membrane and increase its permeability, releasing cytochre c and other mitochondrial proteins. Bcl-2 and Bcl-xL prevent pore formation, blocking apoptosis. AIF (Apoptosis inducing factor) is another mitochondrial factor that is released into the cytoplasm to induce apoptosis. AIF-induced apoptosis is important during development but is not caspase dependent.
Collection C2: curated gene sets
      CP: canonical pathways
            CP:BIOCARTA: BioCarta gene sets
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External links https://data.broadinstitute.org/gsea-msigdb/msigdb/biocarta/human/h_mitochondriaPathway...
Organism Homo sapiens
Contributed by BioCarta
Source platform Human_RefSeq
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Compendia expression profiles GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
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Version history 7.0: Changed members. Upgraded to final version of Biocarta.

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