NCBI Description
This gene encodes a protein which binds to and counteracts the inhibitory effect of a member of the IAP (inhibitor of apoptosis) protein family. IAP proteins bind to and inhibit caspases which are activated during apoptosis. The proportion of IAPs and proteins which interfere with their activity, such as the encoded protein, affect the progress of the apoptosis signaling pathway. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]
Uniprot Description
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 mitochondria, 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.
Product Notes
The XAF1 xaf1 (Catalog #
AAA1437157) is a Recombinant Protein produced from E Coli or Yeast or Baculovirus or Mammalian Cell and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is 1-301, Full length protein. The amino acid sequence is listed below: MEGDFSVCRN CKRHVVSANF TLHEAYCLRF LVLCPECEEP VPKETMEEHC KLEHQQVGCT MCQQSMQKSS LEFHKANECQ ERPVECKFCK LDMQLSKLEL HESYCGSRTE LCQGCGQFIM HRMLAQHRDV CRSEQAQLGK GERISAPERE IYCHYCNQMI PENKYFHHMG KCCPDSEFKK HFPVGNPEIL PSSLPSQAAE NQTSTMEKDV RPKTRSINRF PLHSESSSKK APRSKNKTLD PLLMSEPKPR TSSPRGDKAA YDILRRCSQC GILLPLPILN QHQEKCRWLA SSKGKQVRNF S.
It is sometimes possible for the material contained within the vial of
"XIAP-associated factor 1 (XAF1), Recombinant Protein" to become dispersed throughout the inside of
the vial, particularly around the seal of said vial, during shipment and storage. We always
suggest centrifuging these vials
to consolidate all of the liquid away from the lid and to the bottom of the vial prior to
opening. Please be advised that
certain products may require dry ice for shipping and that, if this is the case, an
additional dry ice fee may also be
required.
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