Product nameAnti-XIAP antibody
See all XIAP primary antibodies
DescriptionRabbit polyclonal to XIAP
SpecificityThis antibody detects the 53 kDa human XIAP protein. It does not cross-react with other apoptosis inhibitors.
Tested applicationsSuitable for: IHC (PFA fixed), WB, ICC/IFmore details
Species reactivityReacts with: Mouse, Rat, Human
Available on request. (Peptide available as ab38275.)
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
Storage bufferPreservative: 0.01% Thimerosal (merthiolate)
Constituents: 30% Glycerol, 0.5% BSA, PBS, pH 7.2
Concentration information loading...
PurityImmunogen affinity purified
Immunizing Peptide (Blocking)
Our Abpromise guarantee covers the use of ab2541 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC (PFA fixed)||Use at an assay dependent concentration. PubMed: 17094439|
|WB||Use a concentration of 1 µg/ml. Detects a band of approximately 54 kDa (predicted molecular weight: 54 kDa).Can be blocked with XIAP peptide (ab38275).|
FunctionApoptotic suppressor. Has E3 ubiquitin-protein ligase activity. Mediates the proteasomal degradation of target proteins, such as caspase-3, SMAC or AIFM1. Inhibitor of caspase-3, -7 and -9. Mediates activation of MAP3K7/TAK1, leading to the activation of NF-kappa-B.
Tissue specificityUbiquitous, except peripheral blood leukocytes.
Involvement in diseaseDefects in XIAP are the cause of lymphoproliferative syndrome X-linked type 2 (XLP2) [MIM:300635]. XLP is a rare immunodeficiency characterized by extreme susceptibility to infection with Epstein-Barr virus (EBV). Symptoms include severe or fatal mononucleosis, acquired hypogammaglobulinemia, pancytopenia and malignant lymphoma.
Sequence similaritiesBelongs to the IAP family.
Contains 3 BIR repeats.
Contains 1 RING-type zinc finger.
DomainThe first BIR domain is involved in interaction with TAB1/MAP3K7IP1 and is important for dimerization. The second BIR domain is sufficient to inhibit caspase-3 and caspase-7, while the third BIR is involved in caspase-9 inhibition. The interactions with SMAC and PRSS25 are mediated by the second and third BIR domains.
modificationsUbiquitinated and degraded by the proteasome in apoptotic cells.
Phosphorylation by PKB/AKT protects XIAP against ubiquitination and protects the protein against proteasomal degradation.
- Information by UniProt
- AP 13 antibody
- API3 antibody
- Apoptosis Inhibitor 3 antibody
ab2541 (1/200) staining XIAP in HeLa cells (green). Cells were permeabilised with 0.5% Triton-X100/ PBS, fixed in methanol (-20oC, 10min) and counterstained with DAPI (red) in order to highlight the nucleus. Please refer to abreview for further experimental details.
All lanes : Anti-XIAP antibody (ab2541) at 1 µg/ml
Lane 1 : Human brain tissue lysate - total protein (ab29466)
Lane 2 : Human placenta tissue lysate - total protein (ab29745)
Lysates/proteins at 10 µg per lane.
All lanes : Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 54 kDa
Observed band size: 54 kDa
Exposure time: 12 minutes
ab2541 staining XIAP in MCF7 cells treated with forskolin (ab120058), by ICC/IF. Increase in XIAP expression correlates with increased concentration of forskolin, as described in literature.
The cells were incubated at 37°C for 2h in media containing different concentrations of ab120058 (forskolin) in DMSO, fixed with 100% methanol for 5 minutes at -20°C and blocked with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% tween for 2h at room temperature. Staining of the treated cells with ab2541 (1 µg/ml) was performed overnight at 4°C in PBS containing 1% BSA and 0.1% tween. A DyLight 488 goat anti-rabbit polyclonal antibody (ab96899) at 1/250 dilution was used as the secondary antibody.
This product has been referenced in:
- Zhang QY et al. FAM46C is critical for the anti-proliferation and pro-apoptotic effects of norcantharidin in hepatocellular carcinoma cells. Sci Rep 7:396 (2017). WB ; Human . Read more (PubMed: 28341836) »
- Hsu KH et al. Anti-apoptotic effects of osteopontin through the up-regulation of Mcl-1 in gastrointestinal stromal tumors. World J Surg Oncol 12:189 (2014). WB ; Human . Read more (PubMed: 24947165) »