PRKAR2B (protein kinase cAMP-dependent type II regulatory subunit beta)

symbol:
PRKAR2B
locus group:
protein-coding gene
location:
7q22.3
gene_family:
alias symbol:
None
alias name:
None
entrez id:
5577
ensembl gene id:
ENSG00000005249
ucsc gene id:
uc003vdx.4
refseq accession:
NM_002736
hgnc_id:
HGNC:9392
approved reserved:
1991-07-17
7q22.3
基因染色体位置图

PRKAR2B(蛋白激酶cAMP依赖性调节亚基IIβ)是cAMP依赖性蛋白激酶(PKA)的调节亚基之一,属于PRKAR基因家族。PKA是一种重要的丝氨酸/苏氨酸激酶,在细胞信号转导中起核心作用,通过cAMP的激活调控多种生理过程,如代谢、基因表达、细胞增殖和分化。PRKAR2B主要在脑、脂肪组织和骨骼肌中高表达,其功能是与催化亚基结合形成PKA全酶,在无cAMP时抑制催化亚基活性;当cAMP水平升高时,PRKAR2B与cAMP结合并释放催化亚基,使其磷酸化下游靶蛋白。PRKAR2B的突变可能导致PKA信号通路异常,与多种疾病相关,如心脏疾病、代谢紊乱和某些癌症。例如,PRKAR2B的某些突变可能导致家族性心脏传导障碍或心律失常。此外,PRKAR2B在脂肪组织中的表达异常与肥胖和胰岛素抵抗有关,可能通过影响脂肪分解和能量代谢。PRKAR2B过表达可能导致PKA信号通路过度激活,进而影响细胞增殖和分化,与某些肿瘤的发生发展相关;而PRKAR2B表达降低可能导致PKA活性不足,影响正常的细胞信号转导和代谢调控。PRKAR2B属于PRKAR基因家族,该家族包括PRKAR1A、PRKAR1B、PRKAR2A和PRKAR2B,这些基因编码PKA的调节亚基,共同特点是能够结合cAMP并调控PKA的活性,但它们在组织分布和功能上存在差异。PRKAR2B与PRKAR2A高度同源,但表达谱和某些功能特性不同。PRKAR2B在神经系统中的作用尤为突出,可能参与学习、记忆和神经保护。研究表明,PRKAR2B的表达水平变化可能影响其他基因的表达或功能,尤其是那些受PKA调控的基因,如CREB(cAMP反应元件结合蛋白)靶基因。PRKAR2B的异常表达还可能影响其他信号通路,如MAPK和PI3K/AKT通路,进而影响细胞的生长和存活。总之,PRKAR2B是一个关键的信号调控分子,其正常功能对维持细胞稳态和机体健康至关重要。

cAMP is a signaling molecule important for a variety of cellular functions. cAMP exerts its effects by activating the cAMP-dependent protein kinase, which transduces the signal through phosphorylation of different target proteins. The inactive kinase holoenzyme is a tetramer composed of two regulatory and two catalytic subunits. cAMP causes the dissociation of the inactive holoenzyme into a dimer of regulatory subunits bound to four cAMP and two free monomeric catalytic subunits. Four different regulatory subunits and three catalytic subunits have been identified in humans. The protein encoded by this gene is one of the regulatory subunits. This subunit can be phosphorylated by the activated catalytic subunit. This subunit has been shown to interact with and suppress the transcriptional activity of the cAMP responsive element binding protein 1 (CREB1) in activated T cells. Knockout studies in mice suggest that this subunit may play an important role in regulating energy balance and adiposity. The studies also suggest that this subunit may mediate the gene induction and cataleptic behavior induced by haloperidol. [provided by RefSeq, Jul 2008]

cAMP的是一个信号分子对各种细胞功能很重要的。 cAMP的施加通过激活cAMP依赖性蛋白激酶,其通过不同的靶蛋白的磷酸化将信号传递其作用。非活动激酶全酶是两个调控和两个催化亚基组成的四聚体。的cAMP导致非活动全酶的解离成结合到四个cAMP和两个自由单体催化亚基调节亚基的二聚体。四种不同的调节亚基和三个催化亚基在人类已确定。由该基因编码的蛋白质是调节亚基中的一个。此亚基可由活化的催化亚基被磷酸化。这种亚单位已被证明与交互,并且在活化的T细胞抑制cAMP反应元件结合蛋白1(CREB1)的转录活性。在小鼠中敲除研究表明,这种亚单元可以在调节能量平衡和肥胖症中起重要作用。该研究还表明,这种亚基可以介导的基因诱导和由氟哌啶醇诱导的僵住症的行为。 [由RefSeq的,2008年7月提供]

PRKAR2B基因的碱基序列:[NCBI]
Loading Gene Browser...
PRKAR2B基因的碱基突变:           仅显示部分snp
rs741008       rs2251838       rs2299419       rs2536499       rs2536500       rs2536501       rs2536502       rs2536503       rs2536504       rs2536505       rs2536506       rs3729869       rs3801969       rs6960842       rs7799412       rs7808028       rs10235601      

PRKAR2B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
GCCTTAATGTACAATACACCCA
59
AGGTTACCCTGTCCAAACC
59
AGAGTCCAGGATTATACATCCA
58
GATTCTTAAACAGCAGGATGTC
58
AGAGTCCAGGATTATACATCCA
58
GATTCTTAAACAGCAGGATGTC
58
GCTCCAGTAATAAACCGATTCAC
60
TTGGATGTATAATCCTGGACTCTG
60
GCTCCAGTAATAAACCGATTCAC
60
TGGATGTATAATCCTGGACTCTG
59
CGCCTGAAAGTAGTAGATGTG
59
AATCAGCCGAATCTCCCTG
60
CAGAGTCCAGGATTATACATCCA
59
TTAAACAGCAGGATGTCTTTGC
60
CAGAGTCCAGGATTATACATCCA
59
TTAAACAGCAGGATGTCTTTGC
60
CCTTAATGTACAATACACCCAGAG
59
AGGTTACCCTGTCCAAACC
59
CAGAGTCCAGGATTATACATCCA
59
TAAACAGCAGGATGTCTTTGC
59
      尚未收录相关数据

PRKAR2B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

PRKAR2B基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0000086
P31323 (UniProtKB)
TAS
GO:0003091
P31323 (UniProtKB)
TAS
GO:0004862
P31323 (UniProtKB)
IDA
GO:0005737
P31323 (UniProtKB)
IDA
GO:0005743
P31323 (UniProtKB)
IEA
GO:0005813
P31323 (UniProtKB)
IDA
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005829
P31323 (UniProtKB)
TAS
GO:0005886
P31323 (UniProtKB)
IDA
GO:0005952
P31323 (UniProtKB)
IEA
GO:0006631
P31323 (UniProtKB)
IEA
GO:0007596
P31323 (UniProtKB)
TAS
GO:0007612
P31323 (UniProtKB)
IEA
GO:0008603
P31323 (UniProtKB)
IDA
GO:0019904
P31323 (UniProtKB)
IEA
GO:0030552
P31323 (UniProtKB)
IEA
GO:0031625
P31323 (UniProtKB)
IDA
GO:0034199
P31323 (UniProtKB)
TAS
GO:0034236
P31323 (UniProtKB)
IPI
GO:0034236
P31323 (UniProtKB)
IPI
GO:0035556
P31323 (UniProtKB)
TAS
GO:0043025
P31323 (UniProtKB)
IEA
GO:0043197
P31323 (UniProtKB)
ISS
GO:0043198
P31323 (UniProtKB)
ISS
GO:0045121
P31323 (UniProtKB)
IEA
GO:0048471
P31323 (UniProtKB)
IEA
GO:0070062
P31323 (UniProtKB)
IDA
GO:0071377
P31323 (UniProtKB)
TAS
GO:0097332
P31323 (UniProtKB)
IEA
GO:0097338
P31323 (UniProtKB)
IEA
GO:0097546
P31323 (UniProtKB)
TAS
GO:2000480
P31323 (UniProtKB)
IDA

可能调控 PRKAR2B基因的相关microRNA:     

Reactome

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
Obesity 0.12 1 0 CTD_human
Lupus Erythematosus, Systemic 0.00272435 1 0 LHGDN
Polycystic Ovary Syndrome 0.00272435 1 0 LHGDN
Osteoarthritis, Knee 0.002367032 1 0 GAD
Cholangiocarcinoma 0.000271442 1 0 BeFree
Degenerative polyarthritis 0.000271442 1 0 BeFree

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