CCND3(Cyclin D3)是细胞周期蛋白D(Cyclin D)家族的成员之一,属于D型细胞周期蛋白亚家族,该家族还包括CCND1和CCND2。这些蛋白在细胞周期调控中起核心作用,主要通过与细胞周期依赖性激酶(CDK4/6)结合形成复合物,推动细胞从G1期进入S期,从而促进细胞增殖。CCND3的特异性在于其表达模式和组织分布,尤其在淋巴细胞、造血干细胞及某些上皮细胞中高表达。其表达受多种信号通路调控,如PI3K-AKT和MAPK通路,这些通路响应生长因子或激素刺激。CCND3的突变或表达异常与多种疾病相关,例如过表达常见于套细胞淋巴瘤、多发性骨髓瘤等血液系统恶性肿瘤,导致细胞周期失控和异常增殖;而低表达可能影响免疫细胞发育或组织再生。CCND3基因突变(如点突变或拷贝数变异)可能破坏其与CDK4/6的结合能力,或影响蛋白稳定性,进而削弱细胞周期调控功能。此外,CCND3作为癌基因(oncogene)的潜在角色,其过表达可通过加速G1/S转换促进肿瘤发生;反之,表达降低可能导致细胞周期阻滞或衰老。在基因家族层面,D型细胞周期蛋白的共性包括:均含保守的周期蛋白盒(cyclin box)结构域以结合CDK,受相似上游信号调控,但各自具有组织特异性表达模式。例如,CCND1与乳腺癌相关,而CCND3更频繁涉及血液系统疾病。研究CCND3的调控机制及靶向干预(如CDK4/6抑制剂)对癌症治疗具有重要意义,但需注意其组织特异性效应以避免广泛抑制正常细胞增殖的副作用。
The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. This cyclin forms a complex with and functions as a regulatory subunit of CDK4 or CDK6, whose activtiy is required for cell cycle G1/S transition. This protein has been shown to interact with and be involved in the phosphorylation of tumor suppressor protein Rb. The CDK4 activity associated with this cyclin was reported to be necessary for cell cycle progression through G2 phase into mitosis after UV radiation. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]
由该基因编码的蛋白质属于高度保守的细胞周期蛋白家族,其成员通过细胞周期的特征是急剧周期性的蛋白质丰度。细胞周期蛋白作为CDK激酶的监管。不同细胞周期蛋白表现出不同的表达和降解模式这有助于每个有丝分裂事件的时间协调。这个周期蛋白形成具有复杂和功能与CDK4或CDK6的调节亚基,其activtiy需要细胞周期G1 / S期转换。这种蛋白已经显示出交互和参与肿瘤抑制Rb蛋白的磷酸化。与此周期相关联的CDK4活性被报告为必要通过G2期的紫外线辐射后的细胞周期进程进入有丝分裂。已发现该基因编码不同亚型的几个抄本变形。 [由RefSeq的,2008年10月提供]
CCND3基因(以及对应的蛋白质)的细胞分布位置:
CCND3基因的本体(GO)信息:
名称 |
---|
4310 Wnt signaling pathway [PATH:hsa04310] |
4390 Hippo signaling pathway [PATH:hsa04390] |
4630 Jak-STAT signaling pathway [PATH:hsa04630] |
4151 PI3K-Akt signaling pathway [PATH:hsa04151] |
4110 Cell cycle [PATH:hsa04110] |
4115 p53 signaling pathway [PATH:hsa04115] |
4510 Focal adhesion [PATH:hsa04510] |
5203 Viral carcinogenesis [PATH:hsa05203] |
5166 HTLV-I infection [PATH:hsa05166] |
5162 Measles [PATH:hsa05162] |
名称 |
---|
Cell Cycle |
Cell Cycle, Mitotic |
Cyclin D associated events in G1 |
Developmental Biology |
G1 Phase |
Mitotic G1-G1/S phases |
Transcriptional regulation of white adipocyte differentiation |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Finding of Mean Corpuscular Hemoglobin | 0.122367032 | 2 | 2 | GAD_GWASCAT |
Mammary Neoplasms, Experimental | 0.08 | 1 | 0 | RGD |
Diabetes Mellitus, Experimental | 0.08 | 1 | 0 | RGD |
Mammary Neoplasms | 0.01162585 | 7 | 0 | BeFree_GAD_LHGDN |
Malignant neoplasm of breast | 0.007448483 | 11 | 1 | BeFree_GAD |
Malignant neoplasm of ovary | 0.007101096 | 3 | 0 | GAD |
Lymphoma | 0.00680591 | 7 | 0 | BeFree_LHGDN |
B-Cell Lymphomas | 0.006263026 | 5 | 0 | BeFree_LHGDN |
Lymphoma, Follicular | 0.003538676 | 3 | 0 | BeFree_LHGDN |
Malignant lymphoma, lymphocytic, intermediate differentiation, diffuse | 0.003538676 | 4 | 0 | BeFree_LHGDN |
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