PAX5 (paired box 5)

symbol:
PAX5
locus group:
protein-coding gene
location:
9p13.2
gene_family:
PRD class homeoboxes and pseudogenes|Paired boxes
alias symbol:
BSAP|PAX-5
alias name:
B-cell lineage specific activator
entrez id:
5079
ensembl gene id:
ENSG00000196092
ucsc gene id:
uc003zzo.3
refseq accession:
NM_001280547
hgnc_id:
HGNC:8619
approved reserved:
1992-11-03
9p13.2
基因染色体位置图

PAX5(Paired Box 5)是PAX基因家族的重要成员,属于转录因子家族,该家族以含有保守的“配对盒”(Paired Box)DNA结合域为特征,主要参与胚胎发育和组织分化的调控。PAX5在B细胞发育和功能维持中起核心作用,它通过调控下游靶基因(如CD19、BLNK等)的表达,促进B细胞谱系定向分化并抑制其向其他细胞类型转化。PAX5蛋白还包含部分同源结构域和转录激活/抑制域,能特异性结合DNA并招募其他调控蛋白形成复合物,主要作用于B细胞相关基因的启动子或增强子区域。若PAX5发生功能丧失性突变(如移码突变或错义突变),会导致B细胞发育阻滞(停滞于祖B细胞阶段),引发免疫缺陷;而染色体易位(如t(9;14)导致的PAX5过表达与B细胞恶性肿瘤(如急性淋巴细胞白血病、弥漫大B细胞淋巴瘤)密切相关。PAX5杂合缺失的小鼠模型显示B细胞数量锐减,而条件性过表达则可能驱动淋巴瘤发生。PAX基因家族(含PAX1-9)的共性包括:通过配对盒域识别特定DNA序列调控发育相关基因,在器官形成(如神经系统、眼睛、免疫系统)中具有时空特异性表达模式,且多数成员突变会导致先天性畸形或癌症。例如PAX6缺失引起无虹膜症,PAX3/PAX7融合基因与横纹肌肉瘤相关。PAX5表达异常还会影响邻近基因(如ETV6、TCF3)的协同作用,破坏B细胞信号网络。在临床中,PAX5表达水平可作为B细胞肿瘤的诊断标志物,其突变谱分析有助于指导靶向治疗策略。

This gene encodes a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding motif, known as the paired box. Paired box transcription factors are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. This gene encodes the B-cell lineage specific activator protein that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis and so the encoded protein may also play a role in neural development and spermatogenesis. This gene is located at 9p13, which is involved in t(9;14)(p13;q32) translocations recurring in small lymphocytic lymphomas of the plasmacytoid subtype, and in derived large-cell lymphomas. This translocation brings the potent E-mu enhancer of the IgH gene into close proximity of the PAX5 promoter, suggesting that the deregulation of transcription of this gene contributes to the pathogenesis of these lymphomas. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2013]

该基因编码的配对盒(PAX)家族的转录因子的成员。此基因家族的主要特征是一种新颖的,高度保守的DNA结合基序,称为配对盒。配对盒转录因子是在早期发展的重要调节剂,并且被认为是有助于细胞恶性转化中的基因的表达的改变。这个基因编码的早期表达的B细胞谱系特异性激活蛋白,但B细胞分化的未晚期。其表达也已经在开发中枢神经系统和睾丸检测的,因此编码的蛋白质也可起到神经发育和精子发生的作用。该基因位于9p13,其涉及在叔(9; 14)(P13; Q32)易位在浆亚型的小淋巴细胞性淋巴瘤的重复,并在衍生大细胞淋巴瘤。这种易位带来的IgH基因的强有力的E-MU增强到PAX5子附近,提示该基因的转录放松管制有助于这些淋巴瘤的发病机制。在多个转录剪接变异体导致编码不同亚型。 [由RefSeq的,2013年7月提供]

PAX5基因的碱基序列:[NCBI]
Loading Gene Browser...
PAX5基因的碱基突变:           仅显示部分snp
rs1329570       rs1329571       rs2381597       rs3013738       rs3739440       rs3758179       rs3824345       rs7029948       rs7038881       rs10973168       rs12236220       rs12236238       rs12238090       rs13289473       rs57000903       rs57268239       rs59627012      

PAX5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
AAATCCCACCATGTTTGCC
59
CGGATGATCCTGTTGATGGA
60
GACCACAGAGTATTCAGCC
58
AGATTGGCCTTCATGTCGT
59
AGAGACGAAGGTATTCAGGAG
59
CTGAGTAGTGCTGCCTCTC
60
CCCTACTATTATAGCGCTGC
58
GGTCAGTGACGGTCATAGG
60
AAATCCCACCATGTTTGCC
59
CGGATGATCCTGTTGATGG
58
CCTACTATTATAGCGCTGCC
58
GGTCAGTGACGGTCATAGG
60
AGACGAAGGTATTCAGGAGTC
59
GTCTGAGTAGTGCTGCCTC
60
GACCACAGAGTATTCAGCCA
60
GATTGGCCTTCATGTCGTC
59
GACCACAGAGTATTCAGCC
58
GATTGGCCTTCATGTCGTC
59
CTACTATTATAGCGCTGCCG
58
GGTCAGTGACGGTCATAGG
60
转录因子
影响基因
影响类型
参考文献链接(PubMed)
PAX5
BAX
Activation
PAX5
BCL2
Repression
PAX5
BLK
Repression
PAX5
CCND1
Repression
PAX5
CD19
Activation
PAX5
CD19
Unknown
PAX5
CD79A
Activation
PAX5
CDKN1A
Activation
PAX5
FCER2
Unknown
PAX5
FHL2
Activation

PAX5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

PAX5基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0003677
E7EQT0 (UniProtKB)
IEA
GO:0005634
E7EQT0 (UniProtKB)
IEA
GO:0006351
E7EQT0 (UniProtKB)
IEA
GO:0006355
E7EQT0 (UniProtKB)
IEA
GO:0007275
E7EQT0 (UniProtKB)
IEA
GO:0003677
E7ERK2 (UniProtKB)
IEA
GO:0006355
E7ERK2 (UniProtKB)
IEA
GO:0003677
E7ERW5 (UniProtKB)
IEA
GO:0005634
E7ERW5 (UniProtKB)
IEA
GO:0006351
E7ERW5 (UniProtKB)
IEA
GO:0006355
E7ERW5 (UniProtKB)
IEA
GO:0007275
E7ERW5 (UniProtKB)
IEA
GO:0003677
E7ES87 (UniProtKB)
IEA
GO:0006355
E7ES87 (UniProtKB)
IEA
GO:0000122
Q02548 (UniProtKB)
IEA
GO:0000978
Q02548 (UniProtKB)
IEA
GO:0001077
Q02548 (UniProtKB)
IEA
GO:0005515
Q02548 (UniProtKB)
IPI
GO:0005634
Q02548 (UniProtKB)
IEA
GO:0006366
Q02548 (UniProtKB)
IEA
GO:0006959
Q02548 (UniProtKB)
TAS
GO:0007275
Q02548 (UniProtKB)
TAS
GO:0007283
Q02548 (UniProtKB)
IEA
GO:0007568
Q02548 (UniProtKB)
IEA
GO:0009887
Q02548 (UniProtKB)
TAS
GO:0021670
Q02548 (UniProtKB)
IEA
GO:0021987
Q02548 (UniProtKB)
IEA
GO:0030534
Q02548 (UniProtKB)
IEA
GO:0035914
Q02548 (UniProtKB)
IEA
GO:0045944
Q02548 (UniProtKB)
IEA
GO:0048701
Q02548 (UniProtKB)
IEA
GO:0051573
Q02548 (UniProtKB)
IEA

可能调控 PAX5基因的相关microRNA:     

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
Precursor Cell Lymphoblastic Leukemia Lymphoma 0.243800186 16 0 BeFree_CTD_human_UNIPROT
LEUKEMIA, ACUTE LYMPHOBLASTIC, SUSCEPTIBILITY TO, 3 0.24 0 1 CLINVAR_ORPHANET
Obesity 0.123181358 4 1 BeFree_GAD_GWASCAT
Precursor B-Cell Lymphoblastic Leukemia-Lymphoma 0.122909916 4 0 BeFree_CTD_human_GAD
B-Cell Lymphomas 0.006524536 15 0 BeFree_LHGDN
Lymphoma 0.005971721 22 0 BeFree
Multiple Myeloma 0.005438769 10 0 BeFree_LHGDN
Acute lymphocytic leukemia 0.005428837 20 0 BeFree
Leukemogenesis 0.004885954 18 0 BeFree
Diffuse Large B-Cell Lymphoma 0.004353001 7 0 BeFree_LHGDN

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