DLG1(Discs Large MAGUK Scaffold Protein 1)属于膜相关鸟苷酸激酶(MAGUK)基因家族,该家族成员以含有PDZ、SH3和GK结构域为特征,主要参与细胞间连接、信号转导和细胞极性维持。DLG1编码的蛋白质是一种支架蛋白,在突触后密集区(如神经元突触)和上皮细胞紧密连接中发挥关键作用,通过组织信号复合物维持细胞结构稳定性。其PDZ结构域可结合多种跨膜蛋白(如NMDA受体、钾通道),调控突触可塑性和神经传递。DLG1突变可能导致突触功能异常,与自闭症谱系障碍和精神分裂症相关;在癌症中,DLG1表达下调会破坏细胞极性,促进肿瘤转移(如结直肠癌)。过表达时可能增强突触功能但干扰细胞迁移,而表达降低则破坏细胞间连接,影响器官发育(如心脏缺陷)。该基因家族成员(如DLG2-5)均参与细胞骨架锚定和信号转导,但组织分布不同——DLG1在上皮和神经组织中富集。病毒(如HPV)常靶向DLG1的PDZ结构域以破坏宿主细胞屏障功能。
This gene encodes a multi-domain scaffolding protein that is required for normal development. This protein may have a role in septate junction formation, signal transduction, cell proliferation, synaptogenesis and lymphocyte activation. Several alternatively spliced transcript variants encoding different isoforms have been described for this gene, but the full-length nature of some of the variants is not known. [provided by RefSeq, Feb 2011]
此基因编码所需的正常发展多域支架蛋白。这种蛋白质可以具有在隔结形成,信号传导,细胞增殖,突触和淋巴细胞活化的作用。编码不同同种型的几个可变剪接转录物变体已被用于这个基因的说明,但某些变体的全长性质是未知的。 [由RefSeq的,2011年2月提供]
DLG1基因(以及对应的蛋白质)的细胞分布位置:
DLG1基因的本体(GO)信息:
名称 |
---|
4390 Hippo signaling pathway [PATH:hsa04390] |
4660 T cell receptor signaling pathway [PATH:hsa04660] |
5203 Viral carcinogenesis [PATH:hsa05203] |
5166 HTLV-I infection [PATH:hsa05166] |
名称 |
---|
Activation of Ca-permeable Kainate Receptor |
Activation of Kainate Receptors upon glutamate binding |
Axon guidance |
Developmental Biology |
Glutamate Binding, Activation of AMPA Receptors and Synaptic Plasticity |
Ionotropic activity of Kainate Receptors |
L1CAM interactions |
Neuronal System |
Neurotransmitter Receptor Binding And Downstream Transmission In The Postsynaptic Cell |
NrCAM interactions |
Trafficking of AMPA receptors |
Transmission across Chemical Synapses |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Schizophrenia | 0.12554839 | 5 | 0 | BeFree_CTD_human_GAD |
Cleft Palate | 0.12 | 1 | 0 | CTD_human |
Parkinson Disease | 0.08 | 1 | 0 | RGD |
Hydronephrosis | 0.002995792 | 1 | 0 | BeFree_LHGDN |
Colonic Neoplasms | 0.00272435 | 1 | 0 | LHGDN |
Uterine Cervical Neoplasm | 0.00272435 | 1 | 0 | LHGDN |
Alcoholic Intoxication, Chronic | 0.002367032 | 1 | 0 | GAD |
Mental disorders | 0.002367032 | 1 | 0 | GAD |
Tobacco Use Disorder | 0.002367032 | 1 | 0 | GAD |
Adult T-Cell Lymphoma/Leukemia | 0.000542884 | 2 | 0 | BeFree |
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