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50ul/100ul/200ul
| 规格： | 50ul | 产品价格： | ￥1180.0 |
|---|---|---|---|
| 规格： | 100ul | 产品价格： | ￥1980.0 |
| 规格： | 200ul | 产品价格： | ￥2800.0 |
| 产品编号 | bs-13907R |
| 英文名称 | phospho-CHEK2 (Ser28) Rabbit pAb |
| 中文名称 | 磷酸化细胞周期检测点激酶2抗体 |
| 英文别名 | CHK2_HUMAN; Serine/threonine-protein kinase Chk2; EC:2.7.11.1; Serine/threonine-protein kinase Chk2; CDS1; CHK2; LFS2; RAD53; hCds1; HuCds1; PP1425; CHK2 checkpoint homolog; Cds1 homolog(Hucds1; hCds1); Checkpoint kinase 2; |
| 产品应用 | WB=1:500-2000, IHC-P=1:100-500, IHC-F=1:100-500, IF=1:100-500 Not yet tested in other applications. |
| 交叉反应 | Human |
| 抗体来源 | Rabbit |
| 免疫原 | KLH conjugated Synthesised phosphopeptide derived from human CHEK2 isoform c around the phosphorylation site of ser28 |
| 亚型 | IgG |
| 性状 | Liquid |
| 纯化方法 | affinity purified by Protein A |
| 克隆类型 | Polyclonal |
| 理论分子量 | 61 kDa |
| 浓度 | 1mg/ml |
| 储存液 | 0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. |
| 研究领域 | Cancer > Cell cycle > Kinases/phosphatases Epigenetics and Nuclear Signaling > DNA / RNA > DNA Damage & Repair > DNA Damage Response > Chk1 / Chk2 |
| 亚基 | Homodimer. Homodimerization is part of the activation process but the dimer may dissociate following activation. Interacts with PML. Interacts with TP53. Interacts with RB1; phosphorylates RB1. Interacts with BRCA1. Interacts (phosphorylated at Thr-68) with MDC1; requires ATM-mediated phosphorylation of CHEK2. Interacts with TP53BP1; modulates CHEK2 phosphorylation at Thr-68 in response to ionizing radiation. Interacts with CDC25A; phosphorylates CDC25A and mediates its degradation in response to ionizing radiation. Interacts with CUL1; mediates CHEK2 ubiquitination and regulation. |
| 亚细胞定位 | Isoform 2: Nucleus. Note=Isoform 10 is present throughout the cell. Isoform 4: Nucleus. Isoform 7: Nucleus. Isoform 9: Nucleus. Isoform 12: Nucleus. Nucleus, PML body. Nucleus, nucleoplasm. Note=Recruited into PML bodies together with TP53. |
| 组织特异性 | High expression is found in testis, spleen, colon and peripheral blood leukocytes. Low expression is found in other tissues. |
| 翻译后修饰 | Phosphorylated. Phosphorylated at Ser-73 by PLK3 in response to DNA damage, promoting phosphorylation at Thr-68 by ATM and the G2/M transition checkpoint. Phosphorylation at Thr-68 induces homodimerization. Autophosphorylates at Thr-383 and Thr-387 in the T-loop/activation segment upon dimerization to become fully active and phosphorylate its substrates like for instance CDC25C. DNA damage-induced autophosphorylation at Ser-379 induces CUL1-mediated ubiquitination and regulates the pro-apoptotic function. Phosphorylation at Ser-456 also regulates ubiquitination. Phosphorylated by PLK4. Ubiquitinated. CUL1-mediated ubiquitination regulates the pro-apoptotic function. Ubiquitination may also regulate protein stability (PubMed:17715138). |
| 相似性 | Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. CHK2 subfamily. Contains 1 FHA domain. Contains 1 protein kinase domain. |
| 功能 | Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest, activation of DNA repair and apoptosis in response to the presence of DNA double-strand breaks. May also negatively regulate cell cycle progression during unperturbed cell cycles. Following activation, phosphorylates numerous effectors preferentially at the consensus sequence [L-X-R-X-X-S/T]. Regulates cell cycle checkpoint arrest through phosphorylation of CDC25A, CDC25B and CDC25C, inhibiting their activity. Inhibition of CDC25 phosphatase activity leads to increased inhibitory tyrosine phosphorylation of CDK-cyclin complexes and blocks cell cycle progression. May also phosphorylate NEK6 which is involved in G2/M cell cycle arrest. Regulates DNA repair through phosphorylation of BRCA2, enhancing the association of RAD51 with chromatin which promotes DNA repair by homologous recombination. Also stimulates the transcription of genes involved in DNA repair (including BRCA2) through the phosphorylation and activation of the transcription factor FOXM1. Regulates apoptosis through the phosphorylation of p53/TP53, MDM4 and PML. Phosphorylation of p53/TP53 at 'Ser-20' by CHEK2 may alleviate inhibition by MDM2, leading to accumulation of active p53/TP53. Phosphorylation of MDM4 may also reduce degradation of p53/TP53. Also controls the transcription of pro-apoptotic genes through phosphorylation of the transcription factor E2F1. Tumor suppressor, it may also have a DNA damage-independent function in mitotic spindle assembly by phosphorylating BRCA1. Its absence may be a cause of the chromosomal instability observed in some cancer cells. |
| 保存条件 | Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles. |
| 注意事项 | This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |
| 背景资料 | In response to DNA damage and replication blocks, cell cycle progression is halted through the control of critical cell cycle regulators. The protein encoded by this gene is a cell cycle checkpoint regulator and putative tumor suppressor. It contains a forkhead-associated protein interaction domain essential for activation in response to DNA damage and is rapidly phosphorylated in response to replication blocks and DNA damage. When activated, the encoded protein is known to inhibit CDC25C phosphatase, preventing entry into mitosis, and has been shown to stabilize the tumor suppressor protein p53, leading to cell cycle arrest in G1. In addition, this protein interacts with and phosphorylates BRCA1, allowing BRCA1 to restore survival after DNA damage. Mutations in this gene have been linked with Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. Also, mutations in this gene are thought to confer a predisposition to sarcomas, breast cancer, and brain tumors. This nuclear protein is a member of the CDS1 subfamily of serine/threonine protein kinases. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012] |
| 应用 | 推荐稀释比例 |
| {WB} | {1:500-2000} |
| {IHC-P} | {1:100-500} |
| {IHC-F} | {1:100-500} |
| {IF} | {1:100-500} |
Paraformaldehyde-fixed, paraffin embedded (Human stomach carcinoma); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (Phospho-CHK2 (Ser28)) Polyclonal Antibody, Unconjugated (bs-13907R) at 1:400 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.
Protein: 293T(human) cell lysate at 30ug;
Primary: Anti-p-CHK2(Ser28) at 1:300
Secondary: IRDye800CW Goat anti-Rabbit at 1:10 000
Predicted band size: 61 kD
Observed band size: 61 kD
Primary: Anti-p-CHK2(Ser28) at 1:300
Secondary: IRDye800CW Goat anti-Rabbit at 1:10 000
Predicted band size: 61 kD
Observed band size: 61 kD
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文献和实验相关实验
：使用 Anti-phospho-Akt (Ser473) Rabbit mAb 对石蜡包埋的人乳腺癌组织进行免疫组织化学分析。（图 A）使用免疫组化试剂盒M&R HRP/DAB Detection IHC Kit，抗体 1:100 稀释；(图 B) 采用普通免疫组化试剂盒，抗体 1:25 稀释。 图 6 免疫组化实验检测 Erk1/2 表达 注：使用 Anti-Erk1/2 Mouse mAb与p44/42 MAPK （Erk1/2）Rabbit mAb 对正常小鼠心脏组织进行免疫
at 10, 25, and 50 μM). At 24 h post-treatment, celllysates were obtained; SDS-PAGE and Western blotting were performed as described in Section 3, Methods. AR-A014418dose-dependent decreases of phospho-β-catenin (Ser33/37) and phospho-glycogen synthase
(Ser473)(193H12)Rabbit mAb，1:300,稀释，二抗是驴抗兔，1：2000，我是实验室的新手，刚呆俩月，受 此挫折，一头雾水，请过来人或者有经验的同学帮忙解答怎样解决，非常感谢！ 碧峤 pAkt有两个位点，Ser473和Thr308，其中Ser473相对容易显色。如果显色失败，可能的原因:1 上样量过少，我们一般都是30μg；2 一抗孵育时间过短，我们一般24h~48h；3 一抗是否工作有待排除 米宝
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phospho-CHEK2 (Ser28) Rabbit pAb(bs-13907R)-50ul/100ul/200ul
￥1180 - 2800
