Affinity purified from pooled serum. Learn more.

Che-1 (AATF) (Ser477) Antibody

Catalog #: p142-477 Categories: , Datasheet:


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Rabbit polyclonal antibody

Pooled Serum
Affinity Purified from Pooled Serum
100% Homology:
Rat, Mouse, Human, Xenopus, Bovine, Non-human primate, Sheep, Canine
WB 1:1,000
Gene Name:
Molecular Reference:
~66 kDa
Cite This Antibody:
PhosphoSolutions Cat# p142-477, RRID:AB_2492057
Antigen/Purification: ExpandCollapse

The antigen is a synthetic phospho-peptide surrounding the phospho Ser477 of human Che-1.

The antibody is prepared from pooled rabbit serum by affinity purification via sequential chromatography on phospho- and dephospho-peptide affinity columns.

Biological Significance: ExpandCollapse

Che-1, also known as AATF (apoptosis-antagonizing transcription factor), is a RNA polymerase II-binding protein involved in regulating the transcription factor E2F and promoting cell cycle progression (Burgdorf et al., 2004). It has been suggested that Che-1 may act as a neuroprotective factor against Abeta-induced apoptosis by suppressing the production of reactive oxidative species (Xie et al., 2004). The checkpoint kinase Chk2 has been shown to phosphorylate Che-1 at Ser477 contributing to the maintenance of the G2/M checkpoint induced by DNA damage (Bruno et al., 2006).


100 µl in 10 mM HEPES (pH 7.5), 150 mM NaCl, 100 µg per ml BSA and 50% glycerol. Adequate amount of material to conduct 10-mini Western Blots.

For long term storage –20° C is recommended. Stable at –20° C for at least 1 year.

General References

Burgdorf S, Leister P, Scheidtmann KH. (2004) TSG101 interacts with apoptosis-antagonizing transcription factor and enhances androgen receptor-mediated transcription by promoting its monoubiquitination. J Biol Chem. 279(17):17524-34

Xie J, Guo Q (2004) AATF protects neural cells against oxidative damage induced by amyloid beta-peptide. Neurobiol Dis. 16(1):150-7

Bruno T, De Nicola F, Iezzi S, Lecis D, D’Angelo C, Di Padova M, Corbi N, Dimiziani L, Zannini L, Jekimovs C, Scarsella M, Porrello A, Chersi A, Crescenzi M, Leonetti C, Khanna KK, Soddu S, Floridi A, Passananti C, Delia D, Fanciulli M. (2006) Che-1 phosphorylation by ATM/ATR and Chk2 kinases activates p53 transcription and the G2/M checkpoint. Cancer Cell. 10(6):473-86

Che-1 (AATF) ser477 Antibody
Western blot of HeLa cell lysate showing specific immunolabeling of the ~66 kDa Che-1 protein phosphorylated at Ser477 in the first lane (-). Phosphospecificity is shown in the second lane (+) where immunolabeling is blocked by preadsorption of the phosphopeptide used as the antigen, but not by the corresponding non-phosphopeptide (not shown).

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