GRID2 (glutamate ionotropic receptor delta type subunit 2)

symbol:
GRID2
locus group:
protein-coding gene
location:
4q22.1-q22.2
gene_family:
Glutamate receptors, ionotropic
alias symbol:
GluD2|GluR-delta-2
alias name:
None
entrez id:
2895
ensembl gene id:
ENSG00000152208
ucsc gene id:
uc011cdt.4
refseq accession:
NM_001286838
hgnc_id:
HGNC:4576
approved reserved:
1997-10-21
4q22.1-q22.2
基因染色体位置图

GRID2(Glutamate Receptor Ionotropic Delta 2)基因编码谷氨酸受体离子型δ2亚基,属于谷氨酸受体家族中的δ亚家族。该基因主要在神经系统尤其是小脑的浦肯野细胞中高表达,其编码的蛋白质是一种配体门控离子通道,虽然不直接参与谷氨酸信号传导,但对突触可塑性和神经发育至关重要。GRID2蛋白通过与Cbln1(小脑蛋白1)和neurexin形成复合物,维持小脑平行纤维-浦肯野细胞突触的结构和功能稳定性。GRID2基因突变会导致受体功能异常,与多种神经系统疾病相关,包括常染色体隐性遗传的脊髓小脑共济失调18型(SCAR18),患者表现为运动协调障碍、肌张力低下和眼球震颤。此外,GRID2异常还与自闭症谱系障碍和精神分裂症等神经精神疾病存在关联。GRID2基因敲除小鼠表现出严重的共济失调和突触形态异常,证实该基因对小脑功能的关键作用。过表达GRID2可能引起突触过度兴奋,导致神经毒性;而表达降低则会导致突触连接缺陷和运动功能障碍。GRID2属于离子型谷氨酸受体基因家族,该家族还包括AMPA(GRIA)、NMDA(GRIN)和红藻氨酸(GRIK)受体亚家族,这些成员均形成四聚体离子通道,介导中枢神经系统的兴奋性突触传递。GRID2的特殊性在于它不形成功能性同源四聚体,需要与其他蛋白相互作用才能发挥功能。该基因的调控异常可能影响整个谷氨酸能信号通路,进而改变神经网络的兴奋抑制平衡。

The protein encoded by this gene is a member of the family of ionotropic glutamate receptors which are the predominant excitatory neurotransmitter receptors in the mammalian brain. The encoded protein is a multi-pass membrane protein that is expressed selectively in cerebellar Purkinje cells. A point mutation in the mouse ortholog, associated with the phenotype named 'lurcher', in the heterozygous state leads to ataxia resulting from selective, cell-autonomous apoptosis of cerebellar Purkinje cells during postnatal development. Mice homozygous for this mutation die shortly after birth from massive loss of mid- and hindbrain neurons during late embryogenesis. This protein also plays a role in synapse organization between parallel fibers and Purkinje cells. Alternate splicing results in multiple transcript variants encoding distinct isoforms. Mutations in this gene cause cerebellar ataxia in humans. [provided by RefSeq, Apr 2014]

由该基因编码的蛋白质是家庭离子型谷氨酸受体它们是在哺乳动物脑的主要兴奋性神经递质受体的一个成员。所编码的蛋白质是在小脑蒲肯野细胞中选择性表达的多遍膜蛋白。点突变的小鼠同源基因,名为“觇‘的表型相关,在杂合状态导致从出生后发育过程中小脑浦肯野细胞的选择性,细胞凋亡自主导致共济失调。纯合子小鼠对这种突变死于中期和后脑的神经元大量丢失,出生后不久后期胚胎发育过程中。这种蛋白也起着平行纤维和浦肯野细胞之间突触组织的作用。在多个备选的转录剪接变异体结果不同编码的亚型。突变在人类该基因导致小脑性共济失调。 [由RefSeq的,2014年4月提供]

GRID2基因的碱基序列:[NCBI]
Loading Gene Browser...
GRID2基因的碱基突变:           仅显示部分snp
rs899469       rs922514       rs1026754       rs1382778       rs1479324       rs1479325       rs1479327       rs1479328       rs1479329       rs1479332       rs1479333       rs1585761       rs1600319       rs1600320       rs1600321       rs2169945       rs2169949      

GRID2基因在不同组织中的表达:    [UniProt]

基因在不同组织中的表达图
正向引物序列
正向Tm值
反向引物序列
反向Tm值
评分
GGCAAGTCTGTCATGTATCAG
58
TAACTCCACCCTTCTTGATGG
59
ATGTTATCCTAAGAGTGGTCAC
57
TTCCACGGATATCGTATTCAC
57
AATGAAAGAATCAGACCACAGG
58
TTTGGCAAACTTTGCAAGTG
58
CAGCCAAATCCTTCATTACTGAG
59
CGTCCACATCGTTTATTTCCTC
59
CAGCCAAATCCTTCATTACTG
57
GTCCACATCGTTTATTTCCTC
57
ATGAAAGAATCAGACCACAGG
58
TTTGGCAAACTTTGCAAGTG
58
GGCAAGTCTGTCATGTATCAG
58
AACTCCACCCTTCTTGATGG
59
GATAGTGAATACGATATCCGTGG
58
CTTCTGAAGTGCAACATCCA
58
TTATCCTAAGAGTGGTCACAGAG
59
GTATTCCACGGATATCGTATTCAC
59
GAAAGAATCAGACCACAGGG
58
TTTGGCAAACTTTGCAAGTG
58
      尚未收录相关数据

GRID2基因(以及对应的蛋白质)的细胞分布位置:

[UniProt]     [GenomeNet]

" d="M482.414,245.296c3.539,4.293,4.455,10.009,0.202,11 c-4.244,0.996-4.983-10.983-8.293-8.438c-5.271,4.08,9.834,12.271,5.144,17.287c-3.717,3.607-6.172-5.75-10.839-1.976 c-4.673,3.776,6.781,7.299,2.831,11.326c-4.354,4.045-6.979-1.449-9.837-5.517c-1.193-1.742-2.059-3.851-3.595-2.748 c-1.516,1.078-1.854,1.795-0.938,3.666c2.374,4.854,9.235,10.119,5.156,12.535c-5.636,3.346-5.044-8.871-9.426-7.574 c-4.388,1.291,2.557,10.66-1.245,11.141c-4.089,0.545-3.483-10.239-6.979-8.575c-2.522,1.206-0.929,3.071-0.938,4.899 c0.004,1.32-0.964,3.6-2.372,4.062c-3.593,1.171-8.544-1.065-10.251-3.59c-6.04-8.93,0.396-15.997,4.639-7.015 c3.023,4.642,5.182,0.834,2.839-2.219c-1.032-1.354-4.309-5.901-0.781-7.252c2.904-1.113,4.271,1.941,5.985,4.592 c2.61,4.016,5.485,0.117,3.031-3.414c-1.828-2.633-2.74-3.803,3.156-7.42c6.405-4.369,6.52,3.869,10.077,0.646 c2.309-1.832-4.783-5.149,0.06-8.995c2.896-2.293,5.18,6.207,7.961,3.516c3.523-2.737-7.717-7.369,0.117-11.736 C473.413,240.77,480.519,242.891,482.414,245.296z"/> Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
  • 质膜
  • 细胞质
  • 细胞外
  • 高尔基体
  • 囊泡
  • 细胞骨架
  • 内质网
  • 细胞核
  • 内体
  • 溶酶体
  • 线粒体

GRID2基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0004970
A0A087X043 (UniProtKB)
IEA
GO:0005234
A0A087X043 (UniProtKB)
IEA
GO:0016021
A0A087X043 (UniProtKB)
IEA
GO:0030054
A0A087X043 (UniProtKB)
IEA
GO:0034220
A0A087X043 (UniProtKB)
IEA
GO:0034220
A0A087X043 (UniProtKB)
IEA
GO:0035235
A0A087X043 (UniProtKB)
IEA
GO:0045211
A0A087X043 (UniProtKB)
IEA
GO:0016021
D6R976 (UniProtKB)
IEA
GO:0016021
D6R9W8 (UniProtKB)
IEA
GO:0004970
O43424 (UniProtKB)
IEA
GO:0005234
O43424 (UniProtKB)
IEA
GO:0005886
O43424 (UniProtKB)
ISS
GO:0005887
O43424 (UniProtKB)
TAS
GO:0006810
O43424 (UniProtKB)
TAS
GO:0007157
O43424 (UniProtKB)
ISS
GO:0007215
O43424 (UniProtKB)
TAS
GO:0008066
O43424 (UniProtKB)
TAS
GO:0008328
O43424 (UniProtKB)
ISS
GO:0010975
O43424 (UniProtKB)
IEA
GO:0021707
O43424 (UniProtKB)
ISS
GO:0030054
O43424 (UniProtKB)
IEA
GO:0030165
O43424 (UniProtKB)
ISS
GO:0034220
O43424 (UniProtKB)
IEA
GO:0034220
O43424 (UniProtKB)
IEA
GO:0034613
O43424 (UniProtKB)
ISS
GO:0035235
O43424 (UniProtKB)
IEA
GO:0035249
O43424 (UniProtKB)
ISS
GO:0043197
O43424 (UniProtKB)
ISS
GO:0043523
O43424 (UniProtKB)
ISS
GO:0045202
O43424 (UniProtKB)
ISS
GO:0045211
O43424 (UniProtKB)
IEA
GO:0060079
O43424 (UniProtKB)
ISS
GO:0060134
O43424 (UniProtKB)
ISS
GO:0097110
O43424 (UniProtKB)
ISS

可能调控 GRID2基因的相关microRNA:     

BioGrid

mentha

String

基因与其他基因之间的相互作用关系图
序号 作用方式 资源库来源/分值 基因名称 基因名称
疾病名称 关系值 NofPmids NofSnps 来源
疾病名称 关系值 NofPmids NofSnps 来源
SPINOCEREBELLAR ATAXIA, AUTOSOMAL RECESSIVE 18 0.32 1 0 MGD_ORPHANET_UNIPROT
Tobacco Use Disorder 0.002367032 1 0 GAD
Cerebellar Ataxia 0.001085767 4 0 BeFree
Ataxia 0.000271442 1 0 BeFree
Cerebellar atrophy 0.000271442 1 0 BeFree
Retinal Dystrophies 0.000271442 1 0 BeFree
Glioma 0.000271442 1 0 BeFree
Abnormal coordination 0.000271442 1 0 BeFree
Congenital cerebellar ataxia 0.000271442 1 0 BeFree
Progressive cerebellar ataxia 0.000271442 1 0 BeFree

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