CDC25C是一种重要的细胞周期调控基因,属于CDC25磷酸酶基因家族(CDC25 family),该家族还包括CDC25A和CDC25B。CDC25家族基因的共同特点是编码双特异性磷酸酶(dual-specificity phosphatase),能够去除细胞周期蛋白依赖性激酶(CDK,cyclin-dependent kinase)上的抑制性磷酸化修饰,从而激活CDK-cyclin复合物,推动细胞周期进程。CDC25C主要在G2/M期(细胞分裂前的准备期和分裂期)发挥作用,通过去磷酸化并激活CDK1-cyclin B1复合物,促进细胞从G2期进入M期(有丝分裂期)。CDC25C的活性受到严格调控,其表达或功能异常可能导致细胞周期紊乱。突变或异常表达(如过表达或低表达)会显著影响细胞增殖和基因组稳定性。CDC25C过表达可能导致CDK1-cyclin B1的持续激活,加速G2/M期转换,与多种癌症(如乳腺癌、结直肠癌)的发生发展相关,表现为细胞不受控增殖和肿瘤恶化。相反,CDC25C表达降低或功能缺失会导致CDK1无法激活,使细胞停滞在G2期,可能诱发细胞凋亡(程序性细胞死亡)或衰老。此外,CDC25C的突变(如错义突变或截短突变)可能破坏其磷酸酶活性或蛋白质稳定性,进一步干扰细胞周期检查点(cell cycle checkpoint)功能,增加染色体异常和肿瘤风险。研究表明,CDC25C与DNA损伤应答密切相关,当DNA受损时,CDC25C会被CHK1/CHK2激酶磷酸化并抑制,阻止受损细胞进入分裂期,为修复争取时间。若这一机制失效,可能导致突变积累和癌症发生。CDC25C还与其他基因(如PLK1、WEE1)相互作用,共同调控G2/M期转换。在治疗上,针对CDC25C的抑制剂正在研究中,可能为癌症治疗提供新策略。
This gene is highly conserved during evolution and it plays a key role in the regulation of cell division. The encoded protein is a tyrosine phosphatase and belongs to the Cdc25 phosphatase family. It directs dephosphorylation of cyclin B-bound CDC2 and triggers entry into mitosis. It is also thought to suppress p53-induced growth arrest. Multiple alternatively spliced transcript variants of this gene have been described, however, the full-length nature of many of them is not known. [provided by RefSeq, Jul 2008]
该基??因是高度进化过程中保守的,并且它在细胞分裂调控中起关键作用。所编码的蛋白质是一个酪氨酸磷酸酶,属于CDC25磷酸酶家族。它指示细胞周期蛋白B结合CDC2的去磷酸化,并触发进入有丝分裂。这也被认为是抑制p53诱导生长停滞。此基因的多个可变剪接转录物变体已有描述,但是,其中许多的全长性质是未知的。 [由RefSeq的,2008年7月提供]
CDC25C基因(以及对应的蛋白质)的细胞分布位置:
CDC25C基因的本体(GO)信息:
名称 |
---|
4110 Cell cycle [PATH:hsa04110] |
4114 Oocyte meiosis [PATH:hsa04114] |
4914 Progesterone-mediated oocyte maturation [PATH:hsa04914] |
5206 MicroRNAs in cancer [PATH:hsa05206] |
名称 |
---|
Activation of ATR in response to replication stress |
Cell Cycle |
Cell Cycle Checkpoints |
Cell Cycle, Mitotic |
Chk1/Chk2(Cds1) mediated inactivation of Cyclin B:Cdk1 complex |
Cyclin A/B1 associated events during G2/M transition |
Cyclin B2 mediated events |
G2/M Checkpoints |
G2/M DNA damage checkpoint |
G2/M Transition |
Mitotic G2-G2/M phases |
Polo-like kinase mediated events |
RHO GTPase Effectors |
RHO GTPases activate PKNs |
Signal Transduction |
Signaling by Rho GTPases |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Malignant neoplasm of lung | 0.005276948 | 4 | 0 | BeFree_GAD |
Malignant neoplasm of breast | 0.003995683 | 7 | 0 | BeFree_GAD |
Prostatic Neoplasms | 0.00272435 | 1 | 0 | LHGDN |
Chronic Lymphocytic Leukemia | 0.002367032 | 1 | 0 | GAD |
Malignant neoplasm of urinary bladder | 0.002367032 | 1 | 0 | GAD |
Chronic Obstructive Airway Disease | 0.002367032 | 1 | 0 | GAD |
Prostate carcinoma | 0.001628651 | 6 | 0 | BeFree |
Malignant neoplasm of prostate | 0.001628651 | 6 | 0 | BeFree |
Breast Carcinoma | 0.001628651 | 6 | 0 | BeFree |
Liver carcinoma | 0.001085767 | 4 | 0 | BeFree |
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