Tyrosine Kinases / Adaptors

Phospho-EGF Receptor (Tyr1045) Antibody

イイネ!(0) Phospho-EGF Receptor (Tyr1045) Antibody Data Sheet PDF
CSTコード 包装
希望納入価格 (円)
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2012年2月9日15時20分 現在
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下記ステップについては、データシートの右側もあわせてご参照ください。

IHC-P: 抗体希釈液 / 抗原賦活化

用途(希釈倍率)
ウェスタンブロッティング(1:1,000)、免疫組織染色(パラフィン)(1:200)、免疫蛍光細胞染色(IF-IC)(1:50)
種交差性
ヒト、ラット
特異性・感度
Tyr1045 がリン酸化されたEGF Receptor を検出します。他の活性化したEGF Receptor ファミリータンパク質(例:ErbB2 )とも交差反応する可能性があります。
検出タンパク質の分子量
175 kDa
使用抗原
ヒトのEGF Receptor のTyr1045 周辺領域(合成リン酸化ペプチド)
抗体の由来
ウサギ
貯法
-20℃
社内データ

Western Blotting

Western Blotting

Western blot analysis of extracts from A431 cells, untreated or EGF-stimulated (100 ng/ml), using Phospho-EGF Receptor (Tyr1045) Antibody (upper) or EGF Receptor (C74B9) Rabbit mAb #2646 (lower).

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human breast carcinoma, showing membrane and cytoplasmic localization, using Phospho-EGF Receptor (Tyr1045) Antibody.

IF-IC

IF-IC

Confocal immunofluorescent analysis of A431 cells serum-starved (left) or EGF-treated (right) and labeled with Phospho-EGF Receptor (Tyr1045) Antibody (green). Blue pseudocolor = DRAQ5™ (fluorescent DNA dye).


バックグラウンド

The epidermal growth factor (EGF) receptor is a transmembrane tyrosine kinase that belongs to the HER/ErbB protein family. Ligand binding results in receptor dimerization, autophosphorylation, activation of downstream signaling, internalization, and lysosomal degradation (1,2). Phosphorylation of EGF receptor (EGFR) at Tyr845 in the kinase domain is implicated in stabilizing the activation loop, maintaining the active state enzyme, and providing a binding surface for substrate proteins (3,4). c-Src is involved in phosphorylation of EGFR at Tyr845 (5). The SH2 domain of PLCγ binds at phospho-Tyr992, resulting in activation of PLCγ-mediated downstream signaling (6). Phosphorylation of EGFR at Tyr1045 creates a major docking site for the adaptor protein c-Cbl, leading to receptor ubiquitination and degradation following EGFR activation (7,8). The GRB2 adaptor protein binds activated EGFR at phospho-Tyr1068 (9). A pair of phosphorylated EGFR residues (Tyr1148 and Tyr1173) provide a docking site for the Shc scaffold protein, with both sites involved in MAP kinase signaling activation (2). Phosphorylation of EGFR at specific serine and threonine residues attenuates EGFR kinase activity. EGFR carboxy-terminal residues Ser1046 and Ser1047 are phosphorylated by CaM kinase II; mutation of either of these serines results in upregulated EGFR tyrosine autophosphorylation (10).

  1. Hackel, P.O. et al. (1999) Curr Opin Cell Biol 11, 184-9.
  2. Zwick, E. et al. (1999) Trends Pharmacol Sci 20, 408-12.
  3. Cooper, J.A. and Howell, B. (1993) Cell 73, 1051-4.
  4. Hubbard, S.R. et al. (1994) Nature 372, 746-54.
  5. Biscardi, J.S. et al. (1999) J Biol Chem 274, 8335-43.
  6. Emlet, D.R. et al. (1997) J Biol Chem 272, 4079-86.
  7. Levkowitz, G. et al. (1999) Mol Cell 4, 1029-40.
  8. Ettenberg, S.A. et al. (1999) Oncogene 18, 1855-66.
  9. Rojas, M. et al. (1996) J Biol Chem 271, 27456-61.
  10. Feinmesser, R.L. et al. (1999) J Biol Chem 274, 16168-73.
使用文献
  • Iordanov, M. S. et al. (2002) The UV (ribotoxic) stress response of human keratinocytes involves the unexpected uncoupling of the Ras-extracellular signal-regulated kinase signaling cascade from the activated epidermal growth factor receptor. Mol. Cell. Biol. 22, 5380-5394. Applications: Western Blotting
  • Nishimura, M. et al. (2009) Mol Cell Biol 29, 5529-39. Applications: Western Blotting
     
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    本製品は試験研究用です。

    Phospho-EGF Receptor (Tyr1045) Antibody

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