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>   home   >   Products   >   Primary Antibodies   >   Metabolism   >   Smac/Diablo Antibody   

Smac/Diablo Antibody

Rabbit Monoclonal Antibody

  • WB - Smac/Diablo Antibody AJ1721a
    A. Western blot analysis on Jurkat cell lysate using anti-Smac/Diablo RabMAb (Cat. #AJ1721a), 1:1,000 dilution.
  • IHC - Smac/Diablo Antibody AJ1721a
    B. Immunohistochemical analysis of paraffin-embedded human skin cancer tissue using anti-Smac/Diablo RabMAb (Cat. #AJ1721a).
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession Q9NR28
Reactivity Human, Rat
Host Rabbit
Clonality Monoclonal
Clone Names Y12
Calculated MW 27131 Da
Gene ID 56616
Other Names Diablo homolog, mitochondrial, Direct IAP-binding protein with low pI, Second mitochondria-derived activator of caspase, Smac, DIABLO, SMAC
Target/Specificity A synthetic peptide corresponding to C-terminal residues human Smac/DIABLO was used as immunogen.
Dilution WB~~1:1000~10000
Format 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsSmac/Diablo Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Synonyms SMAC
Function Promotes apoptosis by activating caspases in the cytochrome c/Apaf-1/caspase-9 pathway. Acts by opposing the inhibitory activity of inhibitor of apoptosis proteins (IAP). Inhibits the activity of BIRC6/bruce by inhibiting its binding to caspases. Isoform 3 attenuates the stability and apoptosis- inhibiting activity of XIAP/BIRC4 by promoting XIAP/BIRC4 ubiquitination and degradation through the ubiquitin-proteasome pathway. Isoform 3 also disrupts XIAP/BIRC4 interacting with processed caspase-9 and promotes caspase-3 activation. Isoform 1 is defective in the capacity to down-regulate the XIAP/BIRC4 abundance.
Cellular Location Mitochondrion. Note=Released into the cytosol when cells undergo apoptosis
Tissue Location Ubiquitously expressed with highest expression in testis. Expression is also high in heart, liver, kidney, spleen, prostate and ovary. Low in brain, lung, thymus and peripheral blood leukocytes. Isoform 3 is ubiquitously expressed
Research Areas
Citations (0)

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Smac/Diablo (Second Mitochondria-derived Activator of Caspases/Direct IAP Binding Protein with Low PI) is localized to the mitochondria and involved in activating programmed cell death, or apoptosis (1). In response to apoptotic stimuli, Smac/Diablo is released from the mitochondria and binds anti-apoptotic IAP proteins, supressing their inhibitory activity and promoting caspase activation (1,2). This interaction involves primarily the amino-terminal residues of Smac/Diablo with the BIR3 region of the IAP protein (3,4).


1. Du, C. et al. Cell 102:33-42 (2000)
2. Verhagen, A.M. et al. Cell 102: 43-53 (2000)
3. Liu, Z. et al. Nature 408: 1004-1007 (2000)
4. Wu, G. et al. Nature 408, 1008-1012 (2000)

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Cat# AJ1721a
(40 western blots)
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