SDC4 (syndecan 4)

symbol:
SDC4
locus group:
protein-coding gene
location:
20q13.12
gene_family:
Syndecans
alias symbol:
SYND4|amphiglycan|ryudocan
alias name:
syndecan proteoglycan 4
entrez id:
6385
ensembl gene id:
ENSG00000124145
ucsc gene id:
uc002xnu.4
refseq accession:
NM_002999
hgnc_id:
HGNC:10661
approved reserved:
1994-05-17
20q13.12
基因染色体位置图

SDC4(Syndecan-4)是一种跨膜蛋白多糖,属于Syndecan基因家族(包含SDC1、SDC2、SDC3和SDC4四个成员)。该家族共性在于其核心蛋白均带有共价连接的硫酸乙酰肝素(HSPG)和硫酸软骨素(CSG)糖链,通过糖链与细胞外基质、生长因子及细胞黏附分子相互作用,参与细胞黏附、迁移、增殖和信号转导等过程。SDC4的生物学功能集中在调控细胞-基质相互作用,尤其在成纤维细胞和内皮细胞中,它通过整合素协同激活蛋白激酶Cα(PKCα)和RhoGTP酶通路,影响细胞骨架重组和机械应力响应。其表达产物作为共受体(co-receptor)可结合纤维连接蛋白(fibronectin)、生长因子(如FGF2、VEGF)及炎症因子(如CXCL12),参与伤口修复、血管生成和免疫调节。主要作用位点包括细胞膜、黏着斑(focal adhesion)及内吞体(endosome)。SDC4突变可能导致黏着斑形成障碍,表现为细胞迁移异常,与动脉粥样硬化、肿瘤转移(如乳腺癌、结肠癌)和纤维化疾病相关。过表达SDC4会增强PKCα信号,促进肿瘤细胞侵袭和血管增生,而敲低表达则导致伤口愈合延迟、血管发育缺陷。在疾病中,SDC4在心肌梗死后的心肌细胞中上调,通过调节炎症反应影响组织修复;在骨关节炎中,其表达降低导致软骨细胞外基质降解加速。该基因家族成员均具有保守的跨膜区和胞内结构域(C1、C2),但SDC4的胞内段含有独特的PKCα结合位点,使其在机械信号转导中具有特异性功能。

The protein encoded by this gene is a transmembrane (type I) heparan sulfate proteoglycan that functions as a receptor in intracellular signaling. The encoded protein is found as a homodimer and is a member of the syndecan proteoglycan family. This gene is found on chromosome 20, while a pseudogene has been found on chromosome 22. [provided by RefSeq, Jul 2008]

由该基因编码的蛋白质是一种跨膜(I型)的硫酸乙酰肝素蛋白多糖,其功能如同在细胞内信号传导的受体。所编码的蛋白质被发现作为同二聚体,并且是聚糖蛋白聚糖家族中的一员。该基因在20号染色体中发现,而假已经在[由RefSeq的,2008年7月提供] 22号染色体发现

SDC4基因的碱基序列:[NCBI]
Loading Gene Browser...
SDC4基因的碱基突变:           仅显示部分snp
rs3529       rs4599       rs7138       rs8060       rs13651       rs13714       rs14142       rs985586       rs1005283       rs1005284       rs1049315       rs1065649       rs1981429       rs1981430       rs1981431       rs2070638       rs2070639      

SDC4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
GGAGATCTGGATGACTTGGA
59
AGGGATATGGTTATCTAGAGGC
59
ACGATGAGGATGTAGTGGG
59
CTTCCAAGTCATCCAGATCTC
58
GACGATGAGGATGTAGTGGG
60
TTCCAAGTCATCCAGATCTCC
59
转录因子
影响基因
影响类型
参考文献链接(PubMed)
POU2F1
SDC4
Unknown

SDC4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

SDC4基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0001523
P31431 (UniProtKB)
TAS
GO:0001657
P31431 (UniProtKB)
IEA
GO:0001843
P31431 (UniProtKB)
IEA
GO:0001968
P31431 (UniProtKB)
IEA
GO:0005080
P31431 (UniProtKB)
IEA
GO:0005515
P31431 (UniProtKB)
IPI
GO:0005515
P31431 (UniProtKB)
IPI
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005796
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005886
P31431 (UniProtKB)
TAS
GO:0005887
P31431 (UniProtKB)
NAS
GO:0005925
P31431 (UniProtKB)
IEA
GO:0006024
P31431 (UniProtKB)
TAS
GO:0006027
P31431 (UniProtKB)
TAS
GO:0007165
P31431 (UniProtKB)
IEA
GO:0009986
P31431 (UniProtKB)
IBA
GO:0010762
P31431 (UniProtKB)
IEA
GO:0016477
P31431 (UniProtKB)
IBA
GO:0030203
P31431 (UniProtKB)
TAS
GO:0042060
P31431 (UniProtKB)
IEA
GO:0043034
P31431 (UniProtKB)
IEA
GO:0043202
P31431 (UniProtKB)
TAS
GO:0043202
P31431 (UniProtKB)
TAS
GO:0045121
P31431 (UniProtKB)
IEA
GO:0045860
P31431 (UniProtKB)
IEA
GO:0051496
P31431 (UniProtKB)
IEA
GO:0051894
P31431 (UniProtKB)
IEA
GO:0060122
P31431 (UniProtKB)
IEA
GO:0070053
P31431 (UniProtKB)
IMP
GO:0070062
P31431 (UniProtKB)
IDA
GO:0070062
P31431 (UniProtKB)
IDA
GO:1903543
P31431 (UniProtKB)
IMP
GO:1903553
P31431 (UniProtKB)
IMP

可能调控 SDC4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
Non-Small Cell Lung Carcinoma 0.12 1 0 CTD_human
Bacterial Infections 0.08 1 0 RGD
Varicose Ulcer 0.005362824 1 0 BeFree_GAD_LHGDN
Leg Ulcer 0.00272435 1 0 LHGDN
Atherosclerosis 0.002367032 1 0 GAD
Psoriasis 0.002367032 1 1 GAD
melanoma 0.000542884 2 0 BeFree
Degenerative polyarthritis 0.000542884 2 0 BeFree
Dermatologic disorders 0.000271442 1 0 BeFree
Colon Carcinoma 0.000271442 1 0 BeFree

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