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Merck
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Key Documents

SRP0230

Sigma-Aldrich

XIAP Active human

recombinant, expressed in baculovirus infected insect cells, ≥65% (SDS-PAGE)

别名:

API3, BIRC4, IAP3, Baculoviral IAP repeat-containing protein 4 (BIRC4), E3 ubiquitin-protein ligase XIAP (MIHA), IAP-like protein (ILP1), Inhibitor of apoptosis protein 3, X-linked inhibitor of apoptosis

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About This Item

分類程式碼代碼:
12352200
NACRES:
NA.32

生物源

human

重組細胞

expressed in baculovirus infected insect cells

化驗

≥65% (SDS-PAGE)

形狀

aqueous solution

分子量

57 kDa

包裝

pkg of 20 μg

儲存條件

avoid repeated freeze/thaw cycles

NCBI登錄號

UniProt登錄號

運輸包裝

dry ice

儲存溫度

−70°C

基因資訊

human ... XIAP(331)

一般說明

XIAP (X-linked inhibitor of apoptosis) is an anti-apoptotic protein belonging to the inhibitor of apoptosis protein (IAP) family, an evolutionary conserved protein family. XIAP contains three tandem copies of BIR (baculovirusIAP repeat) domain, which is composed of ∼70 residues. IAP family members also contain a RING (really interesting new gene) zinc finger domain in their C-terminals.

應用

Useful in conjunction with E1 and E2 for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.

生化/生理作用

XIAP (X-linked inhibitor of apoptosis) is the most potent caspase-interacting protein and inhibits both intrinsic and extrinsic pathways of apoptosis. Its up-regulation in tumor cells is linked with resistance to chemotherapy. In inflammatory breast cancer (IBC) this protein is linked with resistance to antibody-dependent cellular cytotoxicity (ADCC) driven by cetuximab and trastuzumab. Embelin, an inhibitor of XIAP, functions as an anti-tumor agent in myeloma cell line (HL-60) by suppressing the expression of XIAP. Elevated expression of XIAP in rectal cancer is associated with chemotherapy resistance.

單位定義

One unit is defined as the amount of enzyme required to transfer 1 pmol of ubiquitin to substrate/min at 37°C.

外觀

Formulated in 25 mM Tris-HCl, pH 8.0, 100 mM NaCl, 0.05% Tween-20, 100 μg/ml FLAG peptide, 20% glycerol, and 3 mM DTT.

準備報告

Thaw on ice. Upon first thaw, briefly spin tube containing enzyme to recover full content of the tube. Aliquot enzyme into single use aliquots. Store remaining undiluted enzyme in aliquots at -70°C. Note: Enzyme is very sensitive to freeze/thaw cycles.

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X-linked inhibitor of apoptosis protein mediates tumor cell resistance to antibody-dependent cellular cytotoxicity.
Evans MK et al
Cell Death & Disease, 7, e2073-e2073 (2016)
A single BIR domain of XIAP sufficient for inhibiting caspases.
Takahashi R et al
The Journal of Biological Chemistry, 273(14), 7787-7790 (1998)
Synergism between NF-kappa B inhibitor, celastrol, and XIAP inhibitor, embelin, in an acute myeloid leukemia cell line, HL-60.
Pazhang Y et al
Journal of Cancer Research and Therapeutics, 12(1), 155-160 (2016)
Jun Zhou et al.
Cancer immunology, immunotherapy : CII, 68(8), 1331-1340 (2019-07-19)
Expression of inhibitors of apoptosis protein (IAP) family members is associated with poor prognosis in cancer patients. Immunity to ML-IAP (livin) and survivin has been well studied in patients with a variety of tumors. XIAP, the most potent inhibitor of
Arun Murali et al.
Cell death & disease, 8(6), e2900-e2900 (2017-07-01)
Rho GTPases control fundamental cellular processes and Cdc42 is a well-studied member of the family that controls filopodia formation and cell migration. Although the regulation of Cdc42 activity by nucleotide binding is well documented, the mechanisms driving its proteostasis are

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