CAMK4(钙/钙调素依赖性蛋白激酶IV)是一种丝氨酸/苏氨酸蛋白激酶,属于钙调素依赖性蛋白激酶(CaMK)家族。该家族成员(如CAMK1、CAMK2等)的共同特点是依赖钙离子(Ca²⁺)和钙调素(Calmodulin)激活,参与细胞内钙信号转导,调控基因表达、突触可塑性(神经元连接强度的适应性变化)和细胞分化等过程。CAMK4主要在大脑、胸腺和睾丸中高表达,其功能包括通过磷酸化转录因子(如CREB)激活基因转录,从而影响神经元的长时程增强(LTP,学习记忆的关键机制)和免疫细胞发育。突变或功能异常可能导致神经退行性疾病(如阿尔茨海默病)、智力障碍或自身免疫疾病。过表达CAMK4可能增强突触可塑性和记忆形成,但可能引发异常神经兴奋性;而表达降低会损害学习记忆功能,并可能影响T细胞活化。该基因与精神分裂症和双相情感障碍等精神疾病相关,其调控异常可能通过破坏钙信号通路影响下游基因(如BDNF)的表达。
该基因的产物属于丝氨酸/苏氨酸蛋白激酶家族,并以钙(2 +)/钙调蛋白依赖性蛋白激酶亚家族。这种酶是一种多功能的丝氨酸/苏氨酸蛋白激酶具有有限的组织分布,这已在淋巴细胞,神经元和雄性生殖细胞的转录调控被牵连。 [由RefSeq的,2008年7月提供]
CAMK4基因(以及对应的蛋白质)的细胞分布位置:
CAMK4基因的本体(GO)信息:
| 名称 |
|---|
| 4020 Calcium signaling pathway [PATH:hsa04020] |
| 4024 cAMP signaling pathway [PATH:hsa04024] |
| 4921 Oxytocin signaling pathway [PATH:hsa04921] |
| 4725 Cholinergic synapse [PATH:hsa04725] |
| 4720 Long-term potentiation [PATH:hsa04720] |
| 4722 Neurotrophin signaling pathway [PATH:hsa04722] |
| 4380 Osteoclast differentiation [PATH:hsa04380] |
| 5031 Amphetamine addiction [PATH:hsa05031] |
| 5034 Alcoholism [PATH:hsa05034] |
| 名称 |
|---|
| Activation of CaMK IV |
| Activation of NMDA receptor upon glutamate binding and postsynaptic events |
| Ca-dependent events |
| Calmodulin induced events |
| CaM pathway |
| CaMK IV-mediated phosphorylation of CREB |
| CREB phosphorylation through the activation of CaMKK |
| DAG and IP3 signaling |
| DAP12 interactions |
| DAP12 signaling |
| Downstream signal transduction |
| Downstream signaling of activated FGFR1 |
| Downstream signaling of activated FGFR2 |
| Downstream signaling of activated FGFR3 |
| Downstream signaling of activated FGFR4 |
| EGFR interacts with phospholipase C-gamma |
| G-protein mediated events |
| Immune System |
| Innate Immune System |
| Neuronal System |
| Neurotransmitter Receptor Binding And Downstream Transmission In The Postsynaptic Cell |
| NGF signalling via TRKA from the plasma membrane |
| Opioid Signalling |
| Phospholipase C-mediated cascade; FGFR2 |
| Phospholipase C-mediated cascade; FGFR3 |
| Phospholipase C-mediated cascade; FGFR4 |
| Phospholipase C-mediated cascade: FGFR1 |
| PLC beta mediated events |
| PLC-gamma1 signalling |
| PLCG1 events in ERBB2 signaling |
| Post NMDA receptor activation events |
| Signal Transduction |
| Signaling by EGFR |
| Signaling by ERBB2 |
| Signaling by FGFR |
| Signaling by FGFR1 |
| Signaling by FGFR2 |
| Signaling by FGFR3 |
| Signaling by FGFR4 |
| Signaling by GPCR |
| Signaling by PDGF |
| Signalling by NGF |
| Transmission across Chemical Synapses |
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| Cocaine-Related Disorders | 0.12 | 1 | 0 | CTD_human |
| Lupus Erythematosus, Systemic | 0.003538676 | 4 | 0 | BeFree_LHGDN |
| ovarian neoplasm | 0.00272435 | 1 | 0 | LHGDN |
| Alcoholic Intoxication, Chronic | 0.002638474 | 1 | 0 | BeFree_GAD |
| Tobacco Use Disorder | 0.002367032 | 1 | 0 | GAD |
| Blood pressure finding | 0.002367032 | 1 | 1 | GAD |
| Azoospermia | 0.002367032 | 1 | 0 | GAD |
| Oligospermia | 0.002367032 | 1 | 0 | GAD |
| Systemic arterial pressure | 0.002367032 | 1 | 1 | GAD |
| Narcolepsy | 0.002367032 | 1 | 0 | GAD |
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