MAP Kinase Signaling
| CSTコード |
包装 |
希望納入価格(円) |
国内在庫  |
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| #9427S | 100 μL | 57,000 | |
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Raf1抗体製品一覧
推奨プロトコール
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推奨プロトコールはCST社内試験の徹底的なバリデーションに基づいて作成されておりますので、正確かつ再現性の高い結果が得られます。
注:各製品に最適化されたプロトコールをリンクしています。
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9427:
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Western Blotting
| 用途(希釈倍率) | |
| ウェスタンブロッティング(1:1,000) |
| 特異性・感度 | |
| 内在性レベルのSer338 がリン酸化されたc-Raf タンパク質を検出します。 |
| 使用抗原 | |
| ヒトのRaf タンパク質のSer338 周辺領域(合成リン酸化ペプチド) |
Western Blotting
Western blot analysis of extracts from NIH3T3, HeLa and COS cells, untreated or treated with TPA, using Phospho-c-Raf (Ser338) (56A6) Rabbit mAb.
A-Raf, B-Raf and c-Raf (Raf-1) are the main effectors recruited by GTP-bound Ras to activate the MEK-MAP kinase pathway (1). Activation of c-Raf is the best understood and involves phosphorylation at multiple activating sites including Ser338, Tyr341, Thr491, Ser494, Ser497 and Ser499 (2). p21-activated protein kinase (PAK) has been shown to phosphorylate c-Raf at Ser338 and the Src family phosphorylates Tyr341 to induce c-Raf activity (3,4). Ser338 of c-Raf corresponds to similar sites in A-Raf (Ser299) and B-Raf (Ser445), although this site is constitutively phosphorylated in B-Raf (5). Inhibitory 14-3-3 binding sites on c-Raf (Ser259 and Ser621) can be phosphorylated by Akt and AMPK, respectively (6,7). While A-Raf, B-Raf and c-Raf are similar in sequence and function, differential regulation has been observed (8). Of particular interest, B-Raf contains three consensus Akt phosphorylation sites (Ser364, Ser428 and Thr439) and lacks a site equivalent to Tyr341 of c-Raf (8,9). The B-Raf mutation V600E results in elevated kinase activity and is commonly found in malignant melanoma (10). Six residues of c-Raf (Ser29, Ser43, Ser289, Ser296, Ser301 and Ser642) become hyperphosphorylated in a manner consistent with c-Raf inactivation. The hyperphosphorylation of these six sites is dependent on downstream MEK signaling and renders c-Raf unresponsive to subsequent activation events (11).
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Avruch, J. et al. (1994)
Trends Biochem. Sci.
19, 279-283.
-
Chong, H. et al. (2001)
EMBO J.
20, 3716-3727.
-
King, A.J. et al. (1998)
Nature
396, 180-183.
-
Fabian, J.R. et al. (1993)
Mol. Cell Biol.
13, 7170-7179.
-
Mason, C.S. et al. (1999)
EMBO J.
18, 2137-2148.
-
Zimmermann, S. and Moelling, K. (1999)
Science
286, 1741-1744.
-
Sprenkle, A.B. et al. (1997)
FEBS Lett.
403, 254-258.
-
Marais, R. et al. (1997)
J. Biol. Chem.
272, 4378-4383.
-
Guan, K.L. et al. (2000)
J. Biol. Chem.
275, 27354-27359.
-
Davies, H. et al. (2002)
Nature
417, 949-954.
-
Dougherty, M.K. et al. (2005)
Mol. Cell
17, 215-224.