GJA1 (gap junction protein alpha 1)

symbol:
GJA1
locus group:
protein-coding gene
location:
6q22.31
gene_family:
Gap junction proteins
alias symbol:
CX43|ODD|ODOD|SDTY3
alias name:
oculodentodigital dysplasia (synda…
entrez id:
2697
ensembl gene id:
ENSG00000152661
ucsc gene id:
uc003pyr.4
refseq accession:
NM_000165
hgnc_id:
HGNC:4274
approved reserved:
1990-08-03
6q22.31
基因染色体位置图

GJA1基因编码连接蛋白43(Connexin 43,简称Cx43),属于连接蛋白(connexin)基因家族。连接蛋白家族是一组跨膜蛋白,主要功能是形成间隙连接(gap junction),介导细胞间的直接通讯,允许小分子、离子和代谢物在相邻细胞间传递,对组织协调、发育和稳态维持至关重要。GJA1是连接蛋白家族中最广泛表达的成员之一,在心脏、脑、皮肤、骨骼等多种组织中发挥关键作用。在心脏中,Cx43形成的间隙连接确保心肌细胞的电耦合,维持正常心律;在中枢神经系统,它参与神经胶质细胞的信号传递;在骨骼发育中,调控成骨细胞和软骨细胞的功能。GJA1突变可导致多种疾病,例如突变可能引发罕见的心皮肤综合征(如oculodentodigital dysplasia,ODDD),表现为心脏传导异常、手指/脚趾畸形、牙齿和眼睛发育缺陷。此外,Cx43功能异常与心律失常、伤口愈合障碍、听力损失及某些癌症(如胶质瘤)相关。GJA1过表达可能增强细胞间通讯,但异常高表达在某些肿瘤中促进侵袭性;而表达降低或功能缺失会导致电传导障碍(如心肌梗死后的心律失常)、骨骼发育异常或神经功能缺陷。该基因的调控还涉及炎症反应和组织修复,例如在缺血或损伤后,Cx43的表达变化可能影响修复过程。连接蛋白家族的共性包括:均含4个跨膜结构域,形成六聚体“连接子”(connexon),通过配对构建细胞间通道;其功能受磷酸化、pH值等因素动态调节。GJA1因其广泛分布和多重功能,成为研究细胞通讯与疾病的重要靶点。

This gene is a member of the connexin gene family. The encoded protein is a component of gap junctions, which are composed of arrays of intercellular channels that provide a route for the diffusion of low molecular weight materials from cell to cell. The encoded protein is the major protein of gap junctions in the heart that are thought to have a crucial role in the synchronized contraction of the heart and in embryonic development. A related intronless pseudogene has been mapped to chromosome 5. Mutations in this gene have been associated with oculodentodigital dysplasia, autosomal recessive craniometaphyseal dysplasia and heart malformations. [provided by RefSeq, May 2014]

此基因是连接蛋白基因家族的一个成员。所编码的蛋白质是间隙连接,这是由提供用于低分子量物质从细胞到细胞的扩散的路径间的通道阵列的一个组成部分。所编码的蛋白质是在心脏间隙连接,被认为是在心脏的同步的收缩和在胚胎发育至关重要的作用的主要蛋白质。一个相关的内含子假基因已被定位于染色体5.此基因的突变已与oculodentodigital发育不良,常染色体隐性craniometaphyseal发育不良和心脏畸形。 [由RefSeq的,2014年5月提供]

GJA1基因的碱基序列:[NCBI]
Loading Gene Browser...
GJA1基因的碱基突变:           仅显示部分snp
rs1925223       rs2071165       rs2071166       rs2227885       rs2228961       rs3763174       rs3792943       rs3805785       rs3805786       rs3805787       rs3805788       rs3840370       rs3840371       rs3840372       rs6903089       rs9482164       rs9490260      

GJA1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
TTCAATCACTTGGCGTGAC
59
GTCAAGGAGTTTGCCTAAGG
59
TTCAATCACTTGGCGTGAC
59
TCAAGGAGTTTGCCTAAGG
57
TTCAATCACTTGGCGTGAC
59
CAAGGAGTTTGCCTAAGGC
59
转录因子
影响基因
影响类型
参考文献链接(PubMed)
JUN
GJA1
Activation
SP1
GJA1
Activation

GJA1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

GJA1基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0000139
P17302 (UniProtKB)
TAS
GO:0001649
P17302 (UniProtKB)
IEA
GO:0001701
P17302 (UniProtKB)
IEA
GO:0001764
P17302 (UniProtKB)
IEA
GO:0001937
P17302 (UniProtKB)
IEA
GO:0001947
P17302 (UniProtKB)
IEA
GO:0002027
P17302 (UniProtKB)
IEA
GO:0002070
P17302 (UniProtKB)
IEA
GO:0002088
P17302 (UniProtKB)
IEA
GO:0002544
P17302 (UniProtKB)
IEA
GO:0003104
P17302 (UniProtKB)
IEA
GO:0003158
P17302 (UniProtKB)
IEA
GO:0003294
P17302 (UniProtKB)
IEA
GO:0004871
P17302 (UniProtKB)
IMP
GO:0004871
P17302 (UniProtKB)
IDA
GO:0005102
P17302 (UniProtKB)
IEA
GO:0005243
P17302 (UniProtKB)
IDA
GO:0005243
P17302 (UniProtKB)
IDA
GO:0005515
P17302 (UniProtKB)
IPI
GO:0005515
P17302 (UniProtKB)
IPI
GO:0005515
P17302 (UniProtKB)
IPI
GO:0005515
P17302 (UniProtKB)
IPI
GO:0005739
P17302 (UniProtKB)
IDA
GO:0005741
P17302 (UniProtKB)
IEA
GO:0005764
P17302 (UniProtKB)
IEA
GO:0005769
P17302 (UniProtKB)
IEA
GO:0005771
P17302 (UniProtKB)
IEA
GO:0005789
P17302 (UniProtKB)
TAS
GO:0005794
P17302 (UniProtKB)
ISS
GO:0005829
P17302 (UniProtKB)
IEA
GO:0005882
P17302 (UniProtKB)
IEA
GO:0005886
P17302 (UniProtKB)
ISS
GO:0005886
P17302 (UniProtKB)
ISS
GO:0005886
P17302 (UniProtKB)
TAS
GO:0005886
P17302 (UniProtKB)
TAS
GO:0005886
P17302 (UniProtKB)
TAS
GO:0005887
P17302 (UniProtKB)
TAS
GO:0005916
P17302 (UniProtKB)
IEA
GO:0005916
P17302 (UniProtKB)
IEA
GO:0005921
P17302 (UniProtKB)
ISS
GO:0005921
P17302 (UniProtKB)
IDA
GO:0005921
P17302 (UniProtKB)
IDA
GO:0005922
P17302 (UniProtKB)
IEA
GO:0005925
P17302 (UniProtKB)
IDA
GO:0006810
P17302 (UniProtKB)
TAS
GO:0006915
P17302 (UniProtKB)
IEA
GO:0006936
P17302 (UniProtKB)
TAS
GO:0007165
P17302 (UniProtKB)
IDA
GO:0007204
P17302 (UniProtKB)
IEA
GO:0007267
P17302 (UniProtKB)
IDA
GO:0007507
P17302 (UniProtKB)
TAS
GO:0007512
P17302 (UniProtKB)
IEA
GO:0009268
P17302 (UniProtKB)
IEA
GO:0009749
P17302 (UniProtKB)
IEA
GO:0010232
P17302 (UniProtKB)
IEA
GO:0010628
P17302 (UniProtKB)
IEA
GO:0010629
P17302 (UniProtKB)
IEA
GO:0010643
P17302 (UniProtKB)
IEA
GO:0010644
P17302 (UniProtKB)
IDA
GO:0010644
P17302 (UniProtKB)
IDA
GO:0010644
P17302 (UniProtKB)
IDA
GO:0010652
P17302 (UniProtKB)
IEA
GO:0014704
P17302 (UniProtKB)
ISS
GO:0014704
P17302 (UniProtKB)
IDA
GO:0014704
P17302 (UniProtKB)
IDA
GO:0015075
P17302 (UniProtKB)
IDA
GO:0015867
P17302 (UniProtKB)
IEA
GO:0016264
P17302 (UniProtKB)
TAS
GO:0016264
P17302 (UniProtKB)
TAS
GO:0016324
P17302 (UniProtKB)
IEA
GO:0016328
P17302 (UniProtKB)
IEA
GO:0017124
P17302 (UniProtKB)
IEA
GO:0030165
P17302 (UniProtKB)
IEA
GO:0030308
P17302 (UniProtKB)
ISS
GO:0030500
P17302 (UniProtKB)
IEA
GO:0030660
P17302 (UniProtKB)
TAS
GO:0030660
P17302 (UniProtKB)
TAS
GO:0032024
P17302 (UniProtKB)
IEA
GO:0034220
P17302 (UniProtKB)
IDA
GO:0034405
P17302 (UniProtKB)
IEA
GO:0042733
P17302 (UniProtKB)
IEA
GO:0043123
P17302 (UniProtKB)
IMP
GO:0043292
P17302 (UniProtKB)
IEA
GO:0043403
P17302 (UniProtKB)
IEA
GO:0043434
P17302 (UniProtKB)
IEA
GO:0045121
P17302 (UniProtKB)
ISS
GO:0045669
P17302 (UniProtKB)
IEA
GO:0045732
P17302 (UniProtKB)
IEA
GO:0045844
P17302 (UniProtKB)
IEA
GO:0045907
P17302 (UniProtKB)
IEA
GO:0045909
P17302 (UniProtKB)
IEA
GO:0046850
P17302 (UniProtKB)
IEA
GO:0048487
P17302 (UniProtKB)
IEA
GO:0048514
P17302 (UniProtKB)
IEA
GO:0048812
P17302 (UniProtKB)
IEA
GO:0051259
P17302 (UniProtKB)
IEA
GO:0051924
P17302 (UniProtKB)
IEA
GO:0060044
P17302 (UniProtKB)
IEA
GO:0060156
P17302 (UniProtKB)
IEA
GO:0060307
P17302 (UniProtKB)
IEA
GO:0060371
P17302 (UniProtKB)
IEA
GO:0060373
P17302 (UniProtKB)
IEA
GO:0061045
P17302 (UniProtKB)
IEA
GO:0070062
P17302 (UniProtKB)
IDA
GO:0071253
P17302 (UniProtKB)
IEA
GO:0071260
P17302 (UniProtKB)
IEA
GO:0086014
P17302 (UniProtKB)
TAS
GO:0086064
P17302 (UniProtKB)
NAS
GO:0086075
P17302 (UniProtKB)
NAS
GO:0097110
P17302 (UniProtKB)
IEA
GO:1903763
P17302 (UniProtKB)
IDA
GO:2000279
P17302 (UniProtKB)
IEA
GO:2000810
P17302 (UniProtKB)
IEA
GO:2000987
P17302 (UniProtKB)
IEA

可能调控 GJA1基因的相关microRNA:     

Reactome

MINT

BioGrid

IntAct

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
Oculo-dento-digital syndrome 0.573843535 55 10 BeFree_CLINVAR_CTD_human_MGD_ORPHANET_UNIPROT
Hypoplastic Left Heart Syndrome 0.482367032 1 2 CLINVAR_CTD_human_GAD_ORPHANET_UNIPROT
SYNDACTYLY, TYPE III 0.480542884 3 1 BeFree_CLINVAR_CTD_human_ORPHANET_UNIPROT
Hallermann's Syndrome 0.243267234 2 0 BeFree_CTD_human_LHGDN_UNIPROT
Erythrokeratodermia variabilis 0.240542884 2 1 BeFree_CLINVAR_ORPHANET
ATRIOVENTRICULAR SEPTAL DEFECT 3 0.24 1 1 CTD_human_UNIPROT
Oculodentodigital Dysplasia, Autosomal Recessive 0.24 0 2 CLINVAR_CTD_human
Hypertensive disease 0.200271442 3 0 BeFree_CTD_human_RGD
Cardiac Arrhythmia 0.2 3 0 CTD_human_RGD
Prostatic Neoplasms 0.122995792 3 0 BeFree_CTD_human_LHGDN

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