GPX1 (glutathione peroxidase 1)

symbol:
GPX1
locus group:
protein-coding gene
location:
3p21.31
gene_family:
alias symbol:
None
alias name:
selenoprotein GPX1
entrez id:
2876
ensembl gene id:
ENSG00000233276
ucsc gene id:
uc021wxw.2
refseq accession:
NM_000581
hgnc_id:
HGNC:4553
approved reserved:
2001-06-22
3p21.31
基因染色体位置图

GPX1(谷胱甘肽过氧化物酶1)是一种重要的抗氧化酶,属于谷胱甘肽过氧化物酶(GPX)基因家族。该家族共有8个成员(GPX1-8),它们共同的特点是依赖谷胱甘肽(GSH)作为还原剂,催化过氧化氢(H2O2)和有机过氧化物的还原反应,从而保护细胞免受氧化损伤。GPX1是该家族中最普遍表达的成员,几乎存在于所有组织中,尤其在肝脏、肾脏和红细胞中含量丰富。GPX1的主要功能是清除细胞内过氧化氢和脂质过氧化物,维持氧化还原平衡,防止活性氧(ROS)积累导致的细胞损伤。GPX1的活性位点含有硒代半胱氨酸(Sec),这是其催化功能的关键。GPX1基因突变可能导致酶活性降低,使细胞更容易受到氧化应激的伤害,与多种疾病相关,包括心血管疾病、神经退行性疾病(如阿尔茨海默病和帕金森病)、糖尿病和癌症。例如,GPX1基因的Pro198Leu多态性与心血管疾病风险增加有关。GPX1过表达可以增强细胞的抗氧化能力,减少氧化应激损伤,但过度清除ROS也可能干扰细胞信号传导,因为ROS在某些生理过程中作为第二信使发挥作用。相反,GPX1表达降低会导致ROS积累,引发脂质、蛋白质和DNA的氧化损伤,加速细胞衰老或凋亡。GPX1的表达受多种因素调节,包括硒的摄入量(因为硒是GPX1活性中心的必需元素)、氧化应激水平和转录因子(如Nrf2)。在癌症中,GPX1的作用较为复杂,一方面其抗氧化功能可能抑制肿瘤发生,但在某些情况下,GPX1的高表达可能帮助癌细胞抵抗化疗药物的氧化杀伤,促进肿瘤进展。此外,GPX1与其他抗氧化酶(如超氧化物歧化酶SOD和过氧化氢酶CAT)协同作用,构成细胞的抗氧化防御网络。GPX1还与炎症反应相关,因为氧化应激是炎症的重要诱因。总之,GPX1在维持细胞氧化还原平衡中起关键作用,其表达异常与多种病理过程密切相关。

This gene encodes a member of the glutathione peroxidase family. Glutathione peroxidase functions in the detoxification of hydrogen peroxide, and is one of the most important antioxidant enzymes in humans. This protein is one of only a few proteins known in higher vertebrates to contain selenocysteine, which occurs at the active site of glutathione peroxidase and is coded by UGA, that normally functions as a translation termination codon. In addition, this protein is characterized in a polyalanine sequence polymorphism in the N-terminal region, which includes three alleles with five, six or seven alanine (ALA) repeats in this sequence. The allele with five ALA repeats is significantly associated with breast cancer risk. Two alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

该基因编码的谷胱甘肽过氧化物酶家族的一个成员。在过氧化氢的解毒谷胱甘肽过氧化物酶的功能,并且是人类最重要的抗氧化剂酶之一。这种蛋白是在高等脊椎动物已知含有硒代半胱氨酸,其发生在谷胱甘肽过氧化物酶的活性位点,并通过UGA编码只有少数蛋白之一,通常用作翻译终止密码子。另外,该蛋白质的特征是在N末端区的多聚丙氨酸序列多态性,其中包括具有五个,六个或七个丙氨酸3个等位基因(ALA)重复此序列。五ALA重复等位基因显著与乳腺癌风险相关。已经发现了这个基因编码两种不同亚型选择性剪接转录变异体。 [由RefSeq的,2008年7月提供]

GPX1基因的碱基序列:[NCBI]
Loading Gene Browser...
GPX1基因的碱基突变:           仅显示部分snp
rs3448       rs8857       rs9609       rs14566       rs15932       rs1050450       rs1050569       rs1050593       rs1050596       rs1050614       rs1800668       rs1803654       rs3191115       rs3204561       rs3210019       rs3811698       rs3811699      

GPX1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
CTACACCCAGATGAACGAG
57
GAATTTCAGCAGCTGATGC
58
ACTACACCCAGATGAACGAG
59
TCTCCTGATGCCCAAACTG
59
TTATCGAGAATGTGGCGTC
58
TCGTTCATCTGGGTGTAGTC
59
CAACCAGTTTGGGCATCAG
59
AAGAGCATGAAGTTGGGCT
60
CAACCAGTTTGGGCATCAG
59
GTACTTGAGGGAATTCAGAATCTC
59
ACTACTTATCGAGAATGTGGC
58
GTTCATCTGGGTGTAGTCC
57
CAACCAGTTTGGGCATCAG
59
GACGTACTTGAGGGAATTCAG
59
ACTACACCCAGATGAACGAG
59
AATTTCAGCAGCTGATGCC
59
CTTATCGAGAATGTGGCGTC
59
CGTTCATCTGGGTGTAGTC
58
ACTACACCCAGATGAACGA
58
TCTCCTGATGCCCAAACTG
59
转录因子
影响基因
影响类型
参考文献链接(PubMed)
TFAP2C
GPX1
Activation

GPX1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

GPX1基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0004602
A0A087WUQ6 (UniProtKB)
IEA
GO:0006979
A0A087WUQ6 (UniProtKB)
IEA
GO:0055114
A0A087WUQ6 (UniProtKB)
IEA
GO:0098869
A0A087WUQ6 (UniProtKB)
IEA
GO:0098869
A0A087WUQ6 (UniProtKB)
IEA
GO:0000302
P07203 (UniProtKB)
TAS
GO:0001659
P07203 (UniProtKB)
IEA
GO:0001885
P07203 (UniProtKB)
IEA
GO:0002862
P07203 (UniProtKB)
IEA
GO:0004602
P07203 (UniProtKB)
IDA
GO:0004602
P07203 (UniProtKB)
TAS
GO:0004602
P07203 (UniProtKB)
TAS
GO:0004602
P07203 (UniProtKB)
TAS
GO:0004602
P07203 (UniProtKB)
TAS
GO:0005737
P07203 (UniProtKB)
IDA
GO:0005737
P07203 (UniProtKB)
IDA
GO:0005739
P07203 (UniProtKB)
IDA
GO:0005759
P07203 (UniProtKB)
TAS
GO:0005829
P07203 (UniProtKB)
TAS
GO:0005829
P07203 (UniProtKB)
TAS
GO:0005829
P07203 (UniProtKB)
TAS
GO:0006195
P07203 (UniProtKB)
TAS
GO:0006641
P07203 (UniProtKB)
IEA
GO:0006749
P07203 (UniProtKB)
IDA
GO:0007605
P07203 (UniProtKB)
IEA
GO:0008631
P07203 (UniProtKB)
IEA
GO:0009410
P07203 (UniProtKB)
IEA
GO:0009609
P07203 (UniProtKB)
IEA
GO:0009650
P07203 (UniProtKB)
IMP
GO:0010269
P07203 (UniProtKB)
IMP
GO:0010332
P07203 (UniProtKB)
IEA
GO:0017124
P07203 (UniProtKB)
IPI
GO:0017124
P07203 (UniProtKB)
IPI
GO:0018158
P07203 (UniProtKB)
IEA
GO:0019372
P07203 (UniProtKB)
TAS
GO:0033194
P07203 (UniProtKB)
IEA
GO:0033599
P07203 (UniProtKB)
IMP
GO:0034599
P07203 (UniProtKB)
NAS
GO:0040029
P07203 (UniProtKB)
IDA
GO:0042311
P07203 (UniProtKB)
IEA
GO:0042542
P07203 (UniProtKB)
IMP
GO:0042744
P07203 (UniProtKB)
IDA
GO:0043154
P07203 (UniProtKB)
IMP
GO:0043403
P07203 (UniProtKB)
IEA
GO:0043523
P07203 (UniProtKB)
IEA
GO:0043534
P07203 (UniProtKB)
IEA
GO:0045444
P07203 (UniProtKB)
IEA
GO:0045454
P07203 (UniProtKB)
IDA
GO:0048741
P07203 (UniProtKB)
IEA
GO:0051450
P07203 (UniProtKB)
IEA
GO:0051702
P07203 (UniProtKB)
IEA
GO:0051897
P07203 (UniProtKB)
IEA
GO:0060047
P07203 (UniProtKB)
IMP
GO:0060055
P07203 (UniProtKB)
IEA
GO:0061136
P07203 (UniProtKB)
IDA
GO:0070062
P07203 (UniProtKB)
IDA
GO:0090201
P07203 (UniProtKB)
IMP
GO:0098869
P07203 (UniProtKB)
IEA
GO:0098869
P07203 (UniProtKB)
IEA
GO:1902042
P07203 (UniProtKB)
IMP
GO:1902176
P07203 (UniProtKB)
IEA
GO:1902905
P07203 (UniProtKB)
ISS
GO:0097413
P07203 (UniProtKB)
IDA

可能调控 GPX1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
Diabetes Mellitus, Experimental 0.2 4 0 CTD_human_RGD
Mammary Neoplasms 0.130897401 4 0 CTD_human_LHGDN
Lung Neoplasms 0.128715934 6 0 BeFree_CTD_human_LHGDN
Diabetes Mellitus, Non-Insulin-Dependent 0.128186863 8 0 BeFree_CTD_human_GAD
Hypertensive disease 0.127101096 4 0 CTD_human_GAD
Squamous cell carcinoma 0.125905708 5 0 BeFree_CTD_human_GAD_LHGDN
Cardiomyopathy, Dilated 0.123181358 3 2 BeFree_CTD_human_GAD
Bladder Neoplasm 0.12272435 1 0 CTD_human_LHGDN
Parkinson Disease 0.12272435 2 0 CTD_human_LHGDN
Autistic Disorder 0.122638474 1 0 BeFree_CTD_human_GAD

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