Catalog# : 4213
The ARF tumor suppressor is a critical regulator of p53 stability. In addition to p53, ARF1 binds to other proteins such as MDM2 and ARF-BP1, a large protein containing HECT, UBA and WWE motifs. ARF-BP1 directly binds and ubiquitinates p53; this activity is inhibited by ARF, indicating that ARF-BP1 is a critical mediator of the p53-dependent and p53-independent tumor suppressor functions of ARF. ARF-BP1 can also catalyze the polyubiquitination of Mcl-1, an anti-apoptotic Bcl-2 family member involved in DNA damage-induced apoptosis. Elimination of ARF-BP1 expression by RNA interference stabilized Mcl-1 protein, resulting in an attenuation of apoptosis induced by DNA-damage agents.
Additional Names : ARF-BP1, ARF binding protein 1; HECT, UBA and WWE domain containing 1; HUWE1; Mcl-1 ubiquitin ligase E3; Mule
Description
Left: Western blot analysis of ARF-BP1 in Daudi cell lysate with ARF-BP1 antibody at 1 µg/ml। Below: Immunocytochemistry of ARF-BP1 in Daudi cells with ARF-BP1 antibody at 5 µg/ml.
Source : ARF-BP1 antibody was raised against a 19 amino acid peptide from near the carboxy terminus of human ARF-BP1।
Purification : Affinity chromatography purified via peptide column
Clonality and Clone : This is a polyclonal antibody.
Host : ARF-BP1 antibody was raised in rabbit.
Tested Application(s) : E, WB, ICC
Buffer : Antibody is supplied in PBS containing 0.02% sodium azide.
Blocking Peptide : Cat.No. 4213P - ARF-BP1 Peptide
Long-Term Storage : ARF-BP1 antibody can be stored at 4ºC, stable for one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.
Positive Control
- Cat. No. 1224 - Daudi Cell Lysate
GI Number : 61676188
Accession Number : NP_113584
Short Description : ARF binding protein
References
- Gallagher SJ, Kefford RF and Rizos H. The ARF tumour suppressor. Int. J. Biochem. Cell Biol. 2006; 38:1637-41.
- Pomerantz J, Schreiber-Agus N, Leigeois NJ, et al. The Ink4a tumor suppressor gene product, p19ARF interacts with MDM2 and neutralizes MDM2’s inhibition of p53. Cell 1998; 92:725-34.
- Chen D, Kon N, Li M, et al. ARF-BP1/Mule is a critical mediator of the ARF tumor suppressor. Cell 2005; 121:1071-83.
- Zhong Q, Gao W, Du F, et al. Mule/ARF-BP1, a BH3-only E3 ubiquitin ligase, catalyzes the polyubiquitination of Mcl-1 and regulates apoptosis. Cell 2005; 121:1085-95.
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