GRIN2D基因介绍

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GRIN2D基因介绍 was created by 凤凰

基因产物:N-甲基-D-天冬氨酸受体(NMDA)亚单位2D。

蛋白功能:属于NMDA受体复合物的组成部分,该受体属于配体门控的离子型谷氨酸受体,在中枢神经系统中广泛表达,介导兴奋性突触传递过程中的慢钙电流成分,在突触传递的长时程增强中起重要作用,和学习和记忆形成有关[1, 2]。

相关疾病:发育性癫痫性脑病46型(AD)[3]。

相关临床研究:PubMed数据库(PMID: 31504254 (Brain. 2019) ;PMID:  31918992 (Eur J Paediatr Neurol. 2020) ;PMID:  30280376 (Clin Genet . 2018) ;PMID:  27616483 (Am J Hum Genet . 2016) ;PMID:  33397303 (BMC Pediatr. 2021)

用药提醒:多数为抗癫痫药物难治性,另不同突变存在功能减弱型和功能增强型之分(但即使都是同一个位点突变都是增强型的患者对美金刚(其中一种NMDA受体阻滞剂)的治疗效果也有不一样的(有效果好的,有没啥反应的,甚至也有加重的,具体机制还不清楚,可能和治疗时机也有关)[2]。  


参考文献
  1. Traynelis, S.F., et al., Glutamate receptor ion channels: structure, regulation, and function.Pharmacol Rev, 2010. 62(3): p. 405-96.
  2. Paoletti, P., C. Bellone, and Q. Zhou, NMDA receptor subunit diversity: impact on receptor properties, synaptic plasticity and disease.Nat Rev Neurosci, 2013. 14(6): p. 383-400.
  3. Li, D., et al., GRIN2D Recurrent De Novo Dominant Mutation Causes a Severe Epileptic Encephalopathy Treatable with NMDA Receptor Channel Blockers. Am J Hum Genet, 2016. 99(4): p. 802-816.
  4. Camp, C.R. and H. Yuan, GRIN2D/GluN2D NMDA receptor: Unique features and its contribution to pediatric developmental and epileptic encephalopathy. Eur J Paediatr Neurol, 2020. 24: p. 89-99.
25 May 2022 18:15 #1

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