XAF1 Human

XIAP Associated Factor 1, BIRC4-Binding Protein, BIRC4BP, XIAPAF1, XIAP-Associated Factor 1, BIRC4 Binding Protein, HSXIAPAF1, XAF1.

XIAP Associated Factor 1 (XAF1) is 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 in the course of apoptosis. The ratio of IAPs and proteins which interfere with their activity, such as the XAF1 protein, influence the progress of the apoptosis signaling pathway. Additionally, XAF1 inhibits anti-caspase activity of BIRC4. XAF1 induces cleavage and inactivation of BIRC4 independent of caspase activation. Furthermore, XAF1 mediates TNF-alpha-induced apoptosis and is involved in apoptosis in trophoblast cells.

XAF1 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 161 amino acids (1-125) and having a molecular mass of 18.6 kDa.
XAF1 is fused to a 36 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Escherichia Coli.

Sterile Filtered colorless solution.

The XAF1 solution (1mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 30% glycerol, 0.15M NaCl and 1mM DTT.

Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.

Greater than 90.0% as determined by SDS-PAGE.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.