Cell Cycle / Checkpoint Control
Phospho-Chk1 (Ser345) (133D3) Rabbit mAb |
イイネ!(1) |
|
| CSTコード | 包装 | 希望納入価格 (円) |
||
|---|---|---|---|---|
| #2348S | 100 μL | 57,000 | ログインすると国内在庫状況がご確認いただけます。
| |
| #2348L | 300 μL | 137,000 | ||
| #2348P | 40 μL for Custom Sampler Kit | ![]() Custom Antibody Sampler Kitの構成品を選択できます。 5本以上を選択し、ページ右上のCartから製品確定書を発行してください。 尚、構成品の単品販売は致しておりません。 |
シグナル伝達研究応援キャンペーン プレゼント *Pサイズのみ
| 用途 (希釈倍率) | |
|---|---|
| ウェスタンブロッティング (1:1,000)、免疫蛍光細胞染色 (IF-IC) (1:50)、フローサイトメトリー (1:200) |
| 種交差性 | |
|---|---|
| ヒト、マウス、ラット、サル |
| 特異性・感度 | |
|---|---|
| 内在性レベルのSer345 がリン酸化されたChk1 タンパク質を検出します。 |
| 検出タンパク質の分子量 | |
|---|---|
| 56 kDa |
| 使用抗原 | |
|---|---|
| ヒトのChk1 タンパク質のSer345 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 blot analysis of extracts from HeLa, COS, NIH/3T3 and C6 cells, untreated or UV-treated, using Phospho-Chk1 (Ser345) (133D30) Rabbit mAb.
Flow Cytometry

Flow cytometric analysis of HeLa cells, untreated (blue) and UV-treated (green), using Phospho-Chk1 (Ser345) (133D3) Rabbit mAb.
IF-IC

Confocal immunofluorescent analysis of C2C12 cells, untreated (left) or UV-treated (right), using Phospho-Chk1 (Ser345) (133D3) Rabbit mAb (green). Actin filaments have been labeled with DY-554 phalloidin (red).
| バックグラウンド |
|---|
Chk1 kinase acts downstream of ATM/ATR kinase and plays an important role in DNA damage checkpoint control, embryonic development, and tumor suppression (1). Activation of Chk1 involves phosphorylation at Ser317 and Ser345 and occurs in response to blocked DNA replication and certain forms of genotoxic stress (2). While phosphorylation at Ser345 serves to localize Chk1 to the nucleus following checkpoint activation (3), phosphorylation at Ser317 along with site-specific phosphorylation of PTEN allows for reentry into the cell cycle following stalled DNA replication (4). Chk1 exerts its checkpoint mechanism on the cell cycle, in part, by regulating the cdc25 family of phosphatases. Chk1 phosphorylation of cdc25A targets it for proteolysis and inhibits its activity through 14-3-3 binding (5). Activated Chk1 can inactivate cdc25C via phosphorylation at Ser216, blocking the activation of cdc2 and transition into mitosis (6). Centrosomal Chk1 has been shown to phosphorylate cdc25B and inhibit its activation of CDK1-cyclin B1, thereby abrogating mitotic spindle formation and chromatin condensation (7). Furthermore, Chk1 plays a role in spindle checkpoint function through regulation of Aurora B and BubR1 (8). Chk1 has emerged as a drug target for cancer therapy as its inhibition leads to cell death in many cancer cell lines (9).
- Liu, Q. et al. (2000) Genes Dev 14, 1448-59.
- Zhao, H. and Piwnica-Worms, H. (2001) Mol Cell Biol 21, 4129-39.
- Jiang, K. et al. (2003) J Biol Chem 278, 25207-17.
- Martin, S.A. and Ouchi, T. (2008) Mol Cancer Ther 7, 2509-16.
- Chen, M.S. et al. (2003) Mol Cell Biol 23, 7488-97.
- Zeng, Y. et al. (1998) Nature 395, 507-10.
- Löffler, H. et al. (2006) Cell Cycle 5, 2543-7.
- Zachos, G. et al. (2007) Dev Cell 12, 247-60.
- Garber, K. (2005) J Natl Cancer Inst 97, 1026-8.
| 使用例 | |
|---|---|
| 製品をご使用いただいて研究を発表されましたら、ぜひお知らせください。 |
本製品は試験研究用です。

