Cell Signaling Technology

Product Pathways - PI3K / Akt Signaling

Phospho-PTEN (Ser380) Antibody #9551

MMAC1   mutated in multiple advanced cancers 1   TEPI  

No. Size Price
9551S 100 µl ( 10 western blots ) ¥4,050.00 现货查询 购买询价 防伪查询
9551T 20 µl ( 2 western blots ) ¥1,500.00 现货查询 购买询价 防伪查询
9551 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Human,Mouse,Rat, Endogenous 54 Rabbit
IP 1:50

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting, IP=Immunoprecipitation,


Species predicted to react based on 100% sequence homology: Chicken,

Specificity / Sensitivity

Phospho-PTEN (Ser380) Antibody detects endogenous levels of PTEN only when phosphorylated at Ser380

.Phospho-PTEN (Ser380) Antibody可以检测在Ser380位点发生磷酸化的内源性总PTEN蛋白。

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser380 of human PTEN. Antibodies are purified by protein A and peptide affinity chromatography.

多克隆抗体是采用人类PTEN蛋白Ser380周围相对应残基的合成磷酸肽段免疫动物生产的。抗体由protein A和肽亲和层析法纯化。

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines, using Phospho-PTEN (Ser380) Antibody (upper) or PTEN Antibody #9552 (lower). The phospho-specificity of the antibody was confirmed by treating the membrane with calf intestinal alkaline phosphatase (CIP) after Western transfer.

Western blot 分析不同细胞系的提取物,所用抗体为Phospho-PTEN (Ser380) Antibody (上) 或 PTEN Antibody #9552 (下)。抗体的磷酸特异性是通过western 转膜后,采用牛肠磷酸酶(CIP)处理膜证实的。


PTEN (phosphatase and tensin homologue deleted on chromosome ten), also referred to as MMAC (mutated in multiple advanced cancers) phosphatase, is a tumor suppressor implicated in a wide variety of human cancers (1). PTEN encodes a 403 amino acid polypeptide originally described as a dual-specificity protein phosphatase (2). The main substrates of PTEN are inositol phospholipids generated by the activation of the phosphoinositide 3-kinase (PI3K) (3). PTEN is a major negative regulator of the PI3K/Akt signaling pathway (1,4,5). PTEN possesses a carboxy-terminal, noncatalytic regulatory domain with three phosphorylation sites (Ser380, Thr382, and Thr383) that regulate PTEN stability and may affect its biological activity (6,7). PTEN regulates p53 protein levels and activity (8) and is involved in G protein-coupled signaling during chemotaxis (9,10)

PTEN(phosphatase and tensin homologue deleted on chromosome ten),也称为MMAC( (mutated in multiple advanced cancers)磷酸酶,是一种存在于多种人类癌症中的肿瘤抑制因子(1)。PTEN编码一个403个氨基酸组成的多肽,最初被认为是一个双特异性蛋白磷酸酶(2)。PTEN的主要底物是3磷酸肌醇激酶(PI3K)激活转化生成的肌醇磷脂(3)。PTEN是PI3K/Akt信号通路的一个主要的负调因子(1,4,5)。PTEN有一个羧基端的非催化调控的结构域,其中含有3个可以调节PTEN的稳定性,也可能影响其生物活性的磷酸化位点(Ser380,Thr382,Thr383)(6,7)。PTEN调节p53蛋白水平和活性(8),并在趋化过程中参与G蛋白偶联信号转导(9,10)。

  1. Cantley, L.C. and Neel, B.G. (1999) Proc Natl Acad Sci USA 96, 4240-5.
  2. Myers, M.P. et al. (1997) Proc Natl Acad Sci USA 94, 9052-7.
  3. Myers, M.P. et al. (1998) Proc Natl Acad Sci USA 95, 13513-8.
  4. Wan, X. and Helman, L.J. (2003) Oncogene 22, 8205-11.
  5. Wu, X. et al. (1998) Proc Natl Acad Sci USA 95, 15587-91.
  6. Vazquez, F. et al. (2000) Mol Cell Biol 20, 5010-8.
  7. Torres, J. and Pulido, R. (2001) J Biol Chem 276, 993-8.
  8. Freeman, D.J. et al. (2003) Cancer Cell 3, 117-30.
  9. Funamoto, S. et al. (2002) Cell 109, 611-23.
  10. Iijima, M. and Devreotes, P. (2002) Cell 109, 599-610.

Application References

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