ITGB4 (integrin subunit beta 4)

symbol:
ITGB4
locus group:
protein-coding gene
location:
17q25.1
gene_family:
CD molecules|Fibronectin type III domain containing|Integrins
alias symbol:
CD104
alias name:
None
entrez id:
3691
ensembl gene id:
ENSG00000132470
ucsc gene id:
uc002jpj.4
refseq accession:
NM_000213
hgnc_id:
HGNC:6158
approved reserved:
1991-08-06
17q25.1
基因染色体位置图

ITGB4(整合素β4)是整合素家族的重要成员,属于β亚基家族。整合素是一类跨膜受体蛋白,介导细胞与细胞外基质(ECM)的黏附,参与细胞信号传导、迁移、增殖和分化等过程。ITGB4通常与α6亚基(ITGA6)结合形成α6β4整合素异源二聚体,主要在上皮细胞和某些肿瘤细胞中表达,尤其在基底膜中发挥关键作用。ITGB4的独特之处在于其较长的胞内结构域,含有多个磷酸化位点,能与细胞骨架蛋白(如角蛋白)相互作用,形成半桥粒结构,维持上皮细胞的机械稳定性和极性。 ITGB4的功能异常与多种疾病相关。突变可导致遗传性大疱性表皮松解症(JEB),表现为皮肤脆弱、水疱形成,甚至影响胃肠道和泌尿系统。此外,ITGB4在多种癌症(如乳腺癌、肺癌、胰腺癌)中过表达,促进肿瘤侵袭和转移,因其能激活PI3K/AKT和Ras/MAPK等促生存信号通路。相反,ITGB4表达降低可能影响上皮组织的完整性,导致伤口愈合障碍或黏膜病变。 ITGB4的过表达可能增强肿瘤细胞的迁移和耐药性,同时影响其他基因(如MMPs、VEGF)的表达,促进血管生成和ECM降解。而敲低ITGB4可能抑制肿瘤进展,但也会削弱正常上皮的屏障功能。该基因属于整合素β亚家族,成员(如ITGB1、ITGB3等)均含有保守的胞外配体结合域和胞内信号转导结构,但ITGB4因较长的胞内尾端而具有独特的半桥粒组装功能。研究ITGB4有助于开发靶向癌症治疗或遗传性皮肤病的策略。

Integrins are heterodimers comprised of alpha and beta subunits, that are noncovalently associated transmembrane glycoprotein receptors. Different combinations of alpha and beta polypeptides form complexes that vary in their ligand-binding specificities. Integrins mediate cell-matrix or cell-cell adhesion, and transduced signals that regulate gene expression and cell growth. This gene encodes the integrin beta 4 subunit, a receptor for the laminins. This subunit tends to associate with alpha 6 subunit and is likely to play a pivotal role in the biology of invasive carcinoma. Mutations in this gene are associated with epidermolysis bullosa with pyloric atresia. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

整合素是由α和β亚基的异二聚体,即非共价相关联的跨膜糖蛋白受体。 α和β多肽的不同组合形成,在它们的配体结合特异性不同的复合物。整介导的细胞 - 基质或细胞 - 细胞粘附,以及调节基因表达和细胞生长转导信号。该基因编码的整合素4亚基,为层粘连蛋白的受体。此亚基倾向于用α-6亚基相关联,并有可能发挥浸润癌的生物学举足轻重的作用。在这个基因的突变与幽门闭锁表皮松解相关联。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,2008年7月提供]

ITGB4基因的碱基序列:[NCBI]
Loading Gene Browser...
ITGB4基因的碱基突变:           仅显示部分snp
rs9367       rs743554       rs1051554       rs35234235       rs61735300       rs73997615       rs80224547       rs80270402       rs112611253       rs116845474       rs141814228       rs144570556       rs147878654       rs148061895       rs150586960       rs181093059       rs189610725      

ITGB4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
GATGACAACCGACCTATTGG
59
AAGGTTCTCAATAAGCAGCA
58
ATCAACTACTCGGCGATCC
59
GAAGTTGCATTCCTCACACG
60
AGTTATTTCTCCAGTCCTGGA
58
CAGCACTTTCTTCATGGGC
60
TCACCATAGAGTCCCAGGA
59
TGGTGATGCTGCTGTACTC
60
CCATAGAGTCCCAGGATGG
59
TGGTGATGCTGCTGTACTC
60
CACCATTGAATCCCAGGTG
59
GAGTGCTCAAAGTGAAGGC
59
ATCAACTACTCGGCGATCC
59
GAAGTTGCATTCCTCACACG
60
CTAAGCACATCCTCCACCC
60
TCGAGTGTGAGTGTTCTGAG
60
TTCAAGAACGTCATCAGCC
58
ATGGAGTAGCTGAGATCCG
58
CTTACTGCAACCTCCACCT
59
GGATGTAGTCCTGTAGTCCC
59
转录因子
影响基因
影响类型
参考文献链接(PubMed)
ZEB1
ITGB4
Unknown

ITGB4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

ITGB4基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0004872
J3QQL2 (UniProtKB)
IEA
GO:0007160
J3QQL2 (UniProtKB)
IEA
GO:0007229
J3QQL2 (UniProtKB)
IEA
GO:0008305
J3QQL2 (UniProtKB)
IEA
GO:0031581
J3QQL2 (UniProtKB)
IEA
GO:0048870
J3QQL2 (UniProtKB)
IEA
GO:0001664
P16144 (UniProtKB)
IPI
GO:0001664
P16144 (UniProtKB)
IPI
GO:0004872
P16144 (UniProtKB)
IEA
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005515
P16144 (UniProtKB)
IPI
GO:0005634
P16144 (UniProtKB)
IDA
GO:0005886
P16144 (UniProtKB)
IDA
GO:0005886
P16144 (UniProtKB)
IDA
GO:0005886
P16144 (UniProtKB)
IDA
GO:0005886
P16144 (UniProtKB)
TAS
GO:0005886
P16144 (UniProtKB)
TAS
GO:0005886
P16144 (UniProtKB)
TAS
GO:0005886
P16144 (UniProtKB)
TAS
GO:0005886
P16144 (UniProtKB)
TAS
GO:0005886
P16144 (UniProtKB)
TAS
GO:0005886
P16144 (UniProtKB)
TAS
GO:0005886
P16144 (UniProtKB)
TAS
GO:0006914
P16144 (UniProtKB)
IMP
GO:0007155
P16144 (UniProtKB)
NAS
GO:0007160
P16144 (UniProtKB)
IMP
GO:0007229
P16144 (UniProtKB)
IEA
GO:0008305
P16144 (UniProtKB)
IEA
GO:0009611
P16144 (UniProtKB)
IDA
GO:0009986
P16144 (UniProtKB)
IDA
GO:0009986
P16144 (UniProtKB)
IDA
GO:0030054
P16144 (UniProtKB)
IDA
GO:0030056
P16144 (UniProtKB)
IDA
GO:0030198
P16144 (UniProtKB)
TAS
GO:0031252
P16144 (UniProtKB)
IDA
GO:0031581
P16144 (UniProtKB)
IDA
GO:0031581
P16144 (UniProtKB)
IMP
GO:0031581
P16144 (UniProtKB)
TAS
GO:0035878
P16144 (UniProtKB)
IMP
GO:0043235
P16144 (UniProtKB)
IDA
GO:0043588
P16144 (UniProtKB)
IMP
GO:0048333
P16144 (UniProtKB)
IEP
GO:0048565
P16144 (UniProtKB)
IMP
GO:0048870
P16144 (UniProtKB)
IMP
GO:0070062
P16144 (UniProtKB)
IDA
GO:0072001
P16144 (UniProtKB)
IMP
GO:0097186
P16144 (UniProtKB)
IMP
GO:0031994
P16144 (UniProtKB)
IDA
GO:0038132
P16144 (UniProtKB)
IDA

可能调控 ITGB4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
Epidermolysis bullosa with pyloric atresia 0.563800186 17 11 BeFree_CLINVAR_CTD_human_MGD_ORPHANET_UNIPROT
Adult junctional epidermolysis bullosa (disorder) 0.56 1 1 CLINVAR_CTD_human_MGD_ORPHANET_UNIPROT
Epidermolysis Bullosa 0.125991584 4 0 BeFree_CTD_human_LHGDN
Pyloric Atresia 0.121628651 8 0 BeFree_CTD_human
Junctional Epidermolysis Bullosa 0.121357209 6 0 BeFree_CTD_human
Epidermolysis Bullosa Simplex With Pyloric Atresia 0.12 0 0 ORPHANET
Ectodermal Dysplasia 0.12 1 0 CTD_human
Gliosis 0.12 1 0 CTD_human
Salivary Gland Neoplasms 0.12 1 0 CTD_human
Epidermolysis Bullosa Simplex 0.12 0 0 CTD_human

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