Reactivity | HuSpecies Glossary |
Applications | Inhibition Activity |
Format | Carrier-Free |
Details of Functionality | Measured by its ability to inhibit DEVD-AFC cleavage activity in cell extracts activated by addition of cytochrome c and dATP. The IC50 for this effect is <300 nM. Optimal dilutions should be determined by each laboratory for each application. |
Source | E. coli-derived human XIAP protein Asn252-Thr356, with an N-terminal Met and 6-His tag |
Accession # | |
N-terminal Sequence | Met |
Protein/Peptide Type | Recombinant Enzymes |
Gene | XIAP |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Dilutions |
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Theoretical MW | 13 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
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SDS-PAGE | 11 kDa, reducing conditions |
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Publications |
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Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Supplied as a 0.2 μm filtered solution in HEPES, NaCl and DTT. |
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Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
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Assay Procedure |
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XIAP (X-chromosome linked inhibitor of apoptosis) is a member of the inhibitor of apoptosis (IAP) family of proteins that inhibit caspases. The BIR3 domain inhibits caspase-9. The ability of XIAP (BIR3 domain) to inhibit caspases is prevented by SMAC/Diablo.
The Ins and Outs of Survivin By Rachel M.A. Linger, Ph.D.What is survivin?Survivin is a small (16.5 kDa) protein normally found in human fetal tissue. In contrast, survivin is typically undetectable in most normal adult tissues. Expression of ... Read full blog post. |
Apoptosis and Necroptosis Part II: Inhibitors of apoptosis proteins (IAPs); Key regulators of the balance between necroptosis, apoptosis and survival In the first installment of this two-part blog post titled "Apoptosis and Necroptosis: Important factors to identify both types of programmed cell death", the mechanisms by which cell death occurs and ways to identify these pathways were ... Read full blog post. |
Caspase 9 - an important apoptosis marker Caspases are essential mediators of programmed cell death and are needed for both the induction of apoptosis as well as for aiding the degradation of cellular structures. Initiator caspases (such as Caspase-9) sense and respond to various signals i... Read full blog post. |
cIAP2 - balancing cell death and cell survival The inhibitor of apoptosis proteins (IAPs) are important regulators of cell death and inflammation. The cellular inhibitor of apoptosis protein 2 (cIAP2) contains three Baculovirus IAP repeat (BIR) domains, a Ubiquitin associated (UBA) domain, and ... Read full blog post. |
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