CD28 (CD28 molecule)

symbol:
CD28
locus group:
protein-coding gene
location:
2q33.2
gene_family:
CD molecules|V-set domain containing
alias symbol:
None
alias name:
T-cell-specific surface glycoprote…
entrez id:
940
ensembl gene id:
ENSG00000178562
ucsc gene id:
uc002vah.6
refseq accession:
NM_006139
hgnc_id:
HGNC:1653
approved reserved:
1988-05-11
2q33.2
基因染色体位置图

CD28是一种重要的免疫共刺激分子,属于免疫球蛋白超家族(Immunoglobulin Superfamily, IgSF),主要表达于T细胞表面。它的生物学功能是通过与抗原呈递细胞(APC)上的配体B7-1(CD80)和B7-2(CD86)结合,提供T细胞活化的第二信号(共刺激信号),这对T细胞的完全激活、增殖和存活至关重要。CD28的信号传导依赖于其胞内段与PI3K(磷脂酰肌醇3-激酶)和Grb2(生长因子受体结合蛋白2)等适配蛋白的相互作用,最终激活AKT和NF-κB等通路,促进细胞因子(如IL-2)的分泌。CD28的突变或功能缺失会导致T细胞无法有效激活,引发免疫缺陷,例如某些原发性免疫缺陷病(如CD28缺失患者易发生反复感染)。相反,CD28的过度激活可能与自身免疫疾病(如类风湿性关节炎)或慢性炎症相关,因其可能过度增强T细胞反应。CD28属于CD28家族,该家族还包括CTLA-4(细胞毒性T淋巴细胞相关蛋白4)、ICOS(诱导性共刺激分子)和PD-1(程序性死亡受体1)等成员,这些分子均参与调节T细胞免疫应答,但功能不同:CD28和ICOS主要提供正向刺激,而CTLA-4和PD-1则发挥抑制性作用。若CD28表达降低(如衰老或某些病毒感染后),T细胞反应会减弱,导致免疫应答不足;而过表达可能加剧炎症或自身免疫反应。在肿瘤免疫治疗中,针对CD28家族分子(如CTLA-4或PD-1)的抑制剂已被广泛应用,但直接靶向CD28的疗法需谨慎,因其可能引发过度免疫激活。CD28的共刺激机制是免疫检查点研究的核心内容之一,其平衡对维持免疫稳态至关重要。

The protein encoded by this gene is essential for T-cell proliferation and survival, cytokine production, and T-helper type-2 development. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jul 2011]

由该基因编码的蛋白质是T细胞增殖和存活,细胞因子的产生,和T辅助2型发展至关重要。几个可变剪接转录变异体的编码不同亚型也发现了这种基因。[由RefSeq的,2011年7月提供]

CD28基因的碱基序列:[NCBI]
Loading Gene Browser...
CD28基因的碱基突变:           仅显示部分snp
rs1181388       rs1181389       rs1181390       rs1879877       rs2013278       rs2140148       rs3115964       rs3115965       rs3115966       rs3116483       rs3116484       rs3116485       rs3116486       rs3116487       rs3116488       rs3116490       rs3116491      

CD28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
TCAAGTAACAGGGAAACACCT
59
TATAGCAAGCCAGGACTCC
59
CTTGATCATGTGCCCTAAGG
59
ATCTTGTTTCCTGCCAAGG
58
ATTTCCCGGACCTTCTAAGC
59
TCCTCTTACTCCTCACCCA
58
CCATGTGAAAGGGAAACACC
60
CTATAGCAAGCCAGGACTCC
60
TGATCATGTGCCCTAAGGG
59
AATCTTGTTTCCTGCCAAGG
59
CCATGTGAAAGGGAAACACC
60
TATAGCAAGCCAGGACTCC
59
TTTCCCGGACCTTCTAAGC
59
TCCTCTTACTCCTCACCCA
58
TCAAGTAACAGGGAAACACC
58
TATAGCAAGCCAGGACTCC
59
CAAGTAACAGGGAAACACCT
58
TATAGCAAGCCAGGACTCC
59
CATGTGAAAGGGAAACACCT
58
TATAGCAAGCCAGGACTCC
59
转录因子
影响基因
影响类型
参考文献链接(PubMed)
EGR1
CD28
Unknown
NFKB1
CD28
Unknown
RELA
CD28
Unknown
SP1
CD28
Unknown

CD28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

CD28基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0001772
P10747 (UniProtKB)
IEA
GO:0002020
P10747 (UniProtKB)
IPI
GO:0002863
P10747 (UniProtKB)
IEA
GO:0005070
P10747 (UniProtKB)
IDA
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005515
P10747 (UniProtKB)
IPI
GO:0005829
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
IDA
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005886
P10747 (UniProtKB)
TAS
GO:0005887
P10747 (UniProtKB)
TAS
GO:0006959
P10747 (UniProtKB)
TAS
GO:0007166
P10747 (UniProtKB)
TAS
GO:0009897
P10747 (UniProtKB)
IDA
GO:0009986
P10747 (UniProtKB)
IDA
GO:0010628
P10747 (UniProtKB)
IMP
GO:0010629
P10747 (UniProtKB)
IMP
GO:0014066
P10747 (UniProtKB)
TAS
GO:0014068
P10747 (UniProtKB)
IEA
GO:0015026
P10747 (UniProtKB)
TAS
GO:0019901
P10747 (UniProtKB)
IEA
GO:0031295
P10747 (UniProtKB)
TAS
GO:0031295
P10747 (UniProtKB)
TAS
GO:0032733
P10747 (UniProtKB)
IDA
GO:0032753
P10747 (UniProtKB)
IDA
GO:0042089
P10747 (UniProtKB)
TAS
GO:0042102
P10747 (UniProtKB)
ISS
GO:0042102
P10747 (UniProtKB)
IDA
GO:0042102
P10747 (UniProtKB)
IDA
GO:0042102
P10747 (UniProtKB)
TAS
GO:0042802
P10747 (UniProtKB)
NAS
GO:0045060
P10747 (UniProtKB)
IEA
GO:0045066
P10747 (UniProtKB)
IDA
GO:0045070
P10747 (UniProtKB)
NAS
GO:0045086
P10747 (UniProtKB)
ISS
GO:0045086
P10747 (UniProtKB)
IDA
GO:0045589
P10747 (UniProtKB)
IEA
GO:0045727
P10747 (UniProtKB)
NAS
GO:0045840
P10747 (UniProtKB)
ISS
GO:0045840
P10747 (UniProtKB)
IDA
GO:0045944
P10747 (UniProtKB)
IEA
GO:0046641
P10747 (UniProtKB)
IEA
GO:0046854
P10747 (UniProtKB)
IEA
GO:0046934
P10747 (UniProtKB)
TAS
GO:0048015
P10747 (UniProtKB)
TAS
GO:0048304
P10747 (UniProtKB)
IEA
GO:0050690
P10747 (UniProtKB)
TAS
GO:0050852
P10747 (UniProtKB)
IEA
GO:0051897
P10747 (UniProtKB)
IEA
GO:0097190
P10747 (UniProtKB)
IEA

可能调控 CD28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
Rheumatoid Arthritis 0.136611493 29 0 BeFree_CTD_human_GAD_LHGDN
HIV Infections 0.136034933 42 0 BeFree_CTD_human_LHGDN
Autoimmune Diseases 0.122985861 13 0 BeFree_CTD_human
Berylliosis 0.12 1 0 CTD_human
Peripheral T-Cell Lymphoma 0.12 1 0 CTD_human
Adult T-Cell Lymphoma/Leukemia 0.12 1 0 CTD_human
Chloracne 0.12 1 0 CTD_human
Lymphoma, T-Cell, Cutaneous 0.12 2 0 CTD_human
Lymphopenia 0.083267234 4 0 BeFree_LHGDN_RGD
Experimental Autoimmune Encephalomyelitis 0.080271442 2 0 BeFree_RGD

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