PSMB2 (proteasome 20S subunit beta 2)

symbol:
PSMB2
locus group:
protein-coding gene
location:
1p34.3
gene_family:
Proteasome (prosome, macropain) subunits
alias symbol:
HC7-I
alias name:
proteasome subunit β4
entrez id:
5690
ensembl gene id:
ENSG00000126067
ucsc gene id:
uc001bzf.4
refseq accession:
NM_002794
hgnc_id:
HGNC:9539
approved reserved:
1995-05-03
1p34.3
基因染色体位置图

PSMB2(蛋白酶体亚基β2型)是蛋白酶体20S核心颗粒的一个组成部分,属于蛋白酶体β亚基家族。蛋白酶体是一种大型蛋白质复合物,主要负责降解细胞内错误折叠或受损的蛋白质,以及调控细胞周期、信号传导和免疫反应等重要过程。PSMB2与其他β亚基(如PSMB1、PSMB5等)共同形成蛋白酶体的催化核心,负责蛋白质的切割和降解。PSMB2的突变可能影响蛋白酶体的正常功能,导致蛋白质稳态失衡,进而引发神经退行性疾病(如阿尔茨海默病、帕金森病)或癌症等疾病。如果PSMB2过表达,可能会增强蛋白质降解能力,影响细胞周期调控,甚至促进肿瘤细胞的增殖和存活;而降低表达则可能导致错误蛋白积累,触发细胞凋亡或自噬。PSMB2所在的蛋白酶体β亚基家族成员均具有类似的蛋白质水解功能,并在维持细胞内蛋白质稳态中发挥关键作用。此外,PSMB2在免疫系统中也扮演重要角色,通过参与抗原呈递过程影响MHC I类分子的生成,从而调控T细胞免疫应答。因此,PSMB2的功能异常可能与自身免疫性疾病或感染性疾病的发病机制相关。

The proteasome is a multicatalytic proteinase complex with a highly ordered ring-shaped 20S core structure. The core structure is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes a member of the proteasome B-type family, also known as the T1B family, that is a 20S core beta subunit. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Dec 2010]

蛋白酶体是一个multicatalytic蛋白酶复杂与高度有序的环形20S核心结构。核心结构是由4个环,28个非相同亚基组成; 2环由7个α亚和2环由7个β亚基。蛋白酶在整个真核细胞中分布以高浓度和裂开的肽在一个ATP /泛素依赖的过程在非溶酶体途径。修饰的蛋白酶,免疫蛋白酶,的一个重要功能是MHC I类肽的处理。该基因编码的蛋白酶B型家族的成员,也称为T1B家族,这是一个20S核心β亚基。已发现该基因编码不同亚型多重选择性剪接转录变异体。 [由RefSeq的,2010年12月提供]

PSMB2基因的碱基序列:[NCBI]
Loading Gene Browser...
PSMB2基因的碱基突变:           仅显示部分snp
rs12386       rs506288       rs506293       rs511216       rs513969       rs514651       rs516798       rs523743       rs535431       rs535434       rs545929       rs567476       rs569939       rs569942       rs571818       rs574384       rs578677      

PSMB2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
AGATGAAGGACGATCATGAC
57
AAACTGTACAGTGTCTCCAG
57
CACACCGACTATCTCACGT
59
GCAGATTCAGGATGAAGCG
59
CACACCGACTATCTCACGT
59
GCAGATTCAGGATGAAGCG
59
CAGATGAAGGACGATCATGAC
59
ACTGTACAGTGTCTCCAGC
59
CACACCGACTATCTCACGT
59
ATTCAGGATGAAGCGTTTCTG
59
CACACCGACTATCTCACGT
59
ATTCAGGATGAAGCGTTTCTG
59
CACACCGACTATCTCACGT
59
TTCAGGATGAAGCGTTTCTG
59
CACACCGACTATCTCACGT
59
TTCAGGATGAAGCGTTTCTG
59
CAGATGAAGGACGATCATGAC
59
GTACAGTGTCTCCAGCCTC
60
      尚未收录相关数据

PSMB2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

PSMB2基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0004298
A0A087WVV1 (UniProtKB)
IEA
GO:0005839
A0A087WVV1 (UniProtKB)
IEA
GO:0051603
A0A087WVV1 (UniProtKB)
IEA
GO:0000165
P49721 (UniProtKB)
TAS
GO:0000209
P49721 (UniProtKB)
TAS
GO:0000502
P49721 (UniProtKB)
IDA
GO:0002223
P49721 (UniProtKB)
TAS
GO:0002479
P49721 (UniProtKB)
TAS
GO:0004298
P49721 (UniProtKB)
IEA
GO:0005515
P49721 (UniProtKB)
IPI
GO:0005515
P49721 (UniProtKB)
IPI
GO:0005515
P49721 (UniProtKB)
IPI
GO:0005515
P49721 (UniProtKB)
IPI
GO:0005634
P49721 (UniProtKB)
IDA
GO:0005654
P49721 (UniProtKB)
IDA
GO:0005654
P49721 (UniProtKB)
TAS
GO:0005654
P49721 (UniProtKB)
TAS
GO:0005654
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005829
P49721 (UniProtKB)
TAS
GO:0005839
P49721 (UniProtKB)
ISS
GO:0006521
P49721 (UniProtKB)
TAS
GO:0010243
P49721 (UniProtKB)
IEA
GO:0014070
P49721 (UniProtKB)
IEA
GO:0016020
P49721 (UniProtKB)
IDA
GO:0016032
P49721 (UniProtKB)
IEA
GO:0031145
P49721 (UniProtKB)
TAS
GO:0031145
P49721 (UniProtKB)
TAS
GO:0033209
P49721 (UniProtKB)
TAS
GO:0038061
P49721 (UniProtKB)
TAS
GO:0038095
P49721 (UniProtKB)
TAS
GO:0043161
P49721 (UniProtKB)
TAS
GO:0043161
P49721 (UniProtKB)
TAS
GO:0043161
P49721 (UniProtKB)
TAS
GO:0043488
P49721 (UniProtKB)
TAS
GO:0050852
P49721 (UniProtKB)
TAS
GO:0051436
P49721 (UniProtKB)
TAS
GO:0051437
P49721 (UniProtKB)
TAS
GO:0060071
P49721 (UniProtKB)
TAS
GO:0070062
P49721 (UniProtKB)
IDA
GO:0070062
P49721 (UniProtKB)
IDA
GO:0070062
P49721 (UniProtKB)
IDA
GO:0070062
P49721 (UniProtKB)
IDA
GO:0090090
P49721 (UniProtKB)
TAS
GO:0090263
P49721 (UniProtKB)
TAS

可能调控 PSMB2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
Bladder Neoplasm 0.12 1 0 CTD_human
Glomerular filtration rate finding 0.002367032 1 1 GAD
Central neuroblastoma 0.000271442 1 0 BeFree
Exanthema 0.000271442 1 0 BeFree
Neuroblastoma 0.000271442 1 0 BeFree
Spots on skin 0.000271442 1 0 BeFree

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