InnateDB Protein
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IDBP-537403.3
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Last Modified
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2014-10-13 [Report errors or provide feedback]
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Gene Symbol
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Xaf1
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Protein Name
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XIAP associated factor 1
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Synonyms
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Species
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Mus musculus
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Ensembl Protein
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ENSMUSP00000123011
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InnateDB Gene
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IDBG-196515 (Xaf1)
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Protein Structure
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Function |
Seems to function as a negative regulator of members of the IAP (inhibitor of apoptosis protein) family. Inhibits anti- caspase activity of BIRC4. Induces cleavage and inactivation of BIRC4 independent of caspase activation. Mediates TNF-alpha- induced apoptosis and is involved in apoptosis in trophoblast cells. May inhibit BIRC4 indirectly by activating the mitochondrial apoptosis pathway. After translocation to mitochondra, promotes translocation of BAX to mitochondria and cytochrome c release from mitochondria. Seems to promote the redistribution of BIRC4 from the cytoplasm to the nucleus, probably independent of BIRC4 inactivation which seems to occur in the cytoplasm. The BIRC4-XAF1 complex mediates down-regulation of BIRC5/survivin; the process requires the E3 ligase activity of BIRC4. Seems to be involved in cellular sensitivity to the proapoptotic actions of TRAIL. May be a tumor suppressor by mediating apoptosis resistance of cancer cells (By similarity). {ECO:0000250}.
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Subcellular Localization |
Cytoplasm {ECO:0000250}. Nucleus {ECO:0000250}. Mitochondrion {ECO:0000250}.
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Disease Associations |
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Tissue Specificity |
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Comments |
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Number of Interactions
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This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
They are also associated with 5 interaction(s) predicted by orthology.
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Predicted by orthology |
Total |
5 [view]
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Molecular Function |
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Biological Process |
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Cellular Component |
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PDB ID |
MGI:3772572
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InterPro |
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PFAM |
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PRINTS |
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PIRSF |
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SMART |
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TIGRFAMs |
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Modification |
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SwissProt |
Q5NBU8
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PhosphoSite |
PhosphoSite-
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TrEMBL |
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UniProt Splice Variant |
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Entrez Gene |
327959
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UniGene |
Mm.291131
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RefSeq |
NP_001032802
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MGI ID |
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MGI Symbol |
Xaf1
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OMIM |
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CCDS |
CCDS24984
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HPRD |
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IMGT |
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EMBL |
AK140315
AL929071
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GenPept |
BAE24328
CAI36033
CAI36034
CAX15644
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