Product Pathways - PI3K / Akt Signaling
Phospho-FoxO3a (Ser7) Antibody #14724
|14724S||100 µl ( 10 western blots )||￥4,050.00 现货查询||购买询价|
|14724||carrier free & custom formulation / quantity||email request|
Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting,
Specificity / Sensitivity
FoxO3a (Ser7) Antibody recognizes endogenous levels of FoxO3a protein only when phosphorylated at Ser7.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser7 of human FoxO3a protein. Antibodies are purified by protein A and peptide affinity chromatography.
The Forkhead family of transcription factors is involved in tumorigenesis of rhabdomyosarcoma and acute leukemias (1-3). Within the family, three members (FoxO1, FoxO4, and FoxO3a) have sequence similarity to the nematode orthologue DAF-16, which mediates signaling via a pathway involving IGFR1, PI3K, and Akt (4-6). Active forkhead members act as tumor suppressors by promoting cell cycle arrest and apoptosis. Increased expression of any FoxO member results in the activation of the cell cycle inhibitor p27 Kip1. Forkhead transcription factors also play a part in TGF-β-mediated upregulation of p21 Cip1, a process negatively regulated through PI3K (7). Increased proliferation results when forkhead transcription factors are inactivated through phosphorylation by Akt at Thr24, Ser256, and Ser319, which results in nuclear export and inhibition of transcription factor activity (8). Forkhead transcription factors can also be inhibited by the deacetylase sirtuin (SirT1) (9).
p38 phosphorlyates FoxO3a at Ser7 and promotes its nuclear localization (10).
- Anderson, M.J. et al. (1998) Genomics 47, 187-99.
- Galili, N. et al. (1993) Nat Genet 5, 230-5.
- Borkhardt, A. et al. (1997) Oncogene 14, 195-202.
- Nakae, J. et al. (1999) J Biol Chem 274, 15982-5.
- Rena, G. et al. (1999) J Biol Chem 274, 17179-83.
- Guo, S. et al. (1999) J Biol Chem 274, 17184-92.
- Seoane, J. et al. (2004) Cell 117, 211-23.
- Arden, K.C. (2004) Mol Cell 14, 416-8.
- Yang, Y. et al. (2005) EMBO J 24, 1021-32.
- Ho, K.K. et al. (2012) J Biol Chem 287, 1545-55.
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For Research Use Only. Not For Use In Diagnostic Procedures.
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