MAP Kinase Signaling
SignalSlide® Phospho-p44/42 MAPK (Thr202/Tyr204) IHC Controls
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| #8103S | 1 Pack (5 Slides) | 26,000 | |
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8103 の推奨プロトコール
最適な結果を得るために:Cell Signaling Technology (CST) 社は、各製品の推奨プロトコールを使用することを強くお薦めいたします。
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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8103:
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IHC / Paraffin
| 製品概要 | |
| 各コントロールスライドにはU0126 (1,4-diamino-2,3-dicyano-1,4-bis[2-aminophenylthio]butadiene) #9903 またはTPA (12-O-Tetradecanoylphorbol-13-Acetate) #4174 で処理済のNIH/3T3 細胞がホルマリン固定/パラフィン包埋されています。Phospho-p44/42 MAPK (Thr202/Tyr204) タンパク質の免疫染色のコントロールとして使用します。U0126 はMEK1 とMEK2 の選択性の高い阻害剤として知られており、TPA はp44/42 MAPK のリン酸化を誘導します。同じ細胞由来の溶解物にウェスタンブロッティングを行い、U0126 とTPA 処理の効率を確認しています。 |
IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded NIH/3T3 cells, treated with U0126 #9903 (left) or TPA #4174 (right), using Phospho-p44/42MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370.
Schematic

Mitogen-activated protein kinases (MAPKs) are a widely conserved family of serine/threonine protein kinases involved in many cellular programs such as cell proliferation, differentiation, motility, and death. The p44/42 MAPK (Erk1/2) signaling pathway can be activated in response to a diverse range of extracellular stimuli including mitogens, growth factors, and cytokines (1-3) and is an important target in the diagnosis and treatment of cancer (4). Upon stimulation, a sequential three-part protein kinase cascade is initiated, consisting of a MAP kinase kinase kinase (MAPKKK or MAP3K), a MAP kinase kinase (MAPKK or MAP2K), and a MAP kinase (MAPK). Multiple p44/42 MAP3Ks have been identified, including members of the Raf family as well as Mos and Tpl2/Cot. MEK1 and MEK2 are the primary MAPKKs in this pathway (5,6). MEK1 and MEK2 activate p44 and p42 through phosphorylation of activation loop residues Thr202/Tyr204 and Thr185/Tyr187, respectively. Several downstream targets of p44/42 have been identified, including p90RSK (7) and the transcription factor Elk-1 (8,9). p44/42 are negatively regulated by a family of dual-specificity (Thr/Tyr) MAPK phosphatases, known as DUSPs or MKPs (10), along with MEK inhibitors such as U0126 and PD98059.
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