MICB (MHC class I polypeptide-related sequence B)

symbol:
MICB
locus group:
protein-coding gene
location:
6p21.33
gene_family:
C1-set domain containing
alias symbol:
PERB11.2
alias name:
None
entrez id:
4277
ensembl gene id:
ENSG00000204516
ucsc gene id:
uc003nto.6
refseq accession:
NM_005931
hgnc_id:
HGNC:7091
approved reserved:
1994-05-16
6p21.33
基因染色体位置图

MICB(MHC class I polypeptide-related sequence B)属于MHC I类相关基因家族(MIC基因家族),该家族包括MICA和MICB等成员,位于人类6号染色体上的主要组织相容性复合体(MHC)区域。MIC基因家族编码的蛋白与经典的MHC I类分子结构相似,但不结合β2微球蛋白或呈递抗原,主要功能是通过与NK细胞和部分T细胞表面的NKG2D受体结合,激活免疫应答,参与对感染或恶性细胞的免疫监视。MICB蛋白在正常组织中表达较低,但在应激、感染或肿瘤发生时表达上调,作为“危险信号”分子,帮助免疫系统识别异常细胞。MICB的突变可能导致其与NKG2D结合能力下降,削弱免疫监视功能,增加感染或肿瘤风险。某些MICB多态性与自身免疫疾病(如类风湿关节炎)或传染病易感性相关。过表达MICB可能增强免疫细胞对靶细胞的杀伤,但某些肿瘤会通过分泌可溶性MICB蛋白逃避免疫攻击;而MICB表达降低则可能导致免疫监视功能减弱,促进肿瘤发生。MIC基因家族的共性包括:均由应激诱导表达,与NKG2D受体相互作用,参与先天和适应性免疫的桥梁作用。MICB在移植排斥、病毒感染(如CMV)和肿瘤免疫治疗中具有研究价值,其调控机制和临床应用仍在探索中。

This gene encodes a heavily glycosylated protein which is a ligand for the NKG2D type II receptor. Binding of the ligand activates the cytolytic response of natural killer (NK) cells, CD8 alphabeta T cells, and gammadelta T cells which express the receptor. This protein is stress-induced and is similar to MHC class I molecules; however, it does not associate with beta-2-microglobulin or bind peptides. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

此基因编码高度糖基化蛋白,其是用于NKG2D II型受体的配体。配体的结合激活自然杀伤(NK)细胞的细胞溶解反应,CD8字母a T细胞,并表达该受体gammadelta T细胞。这种蛋白质是应力诱发,类似于MHC I类分子;然而,它不与β-2微球蛋白或结合肽相关联。选择性剪接结果在多个抄本变形。 [由RefSeq的,2014年1月提供]

CCND1基因的碱基序列:[NCBI]
Loading Gene Browser...
MICB基因的碱基突变:           仅显示部分snp
rs2252937       rs2252937       rs2252937       rs2252937       rs2252937       rs2253040       rs2253040       rs2253040       rs2253040       rs2253040       rs2253042       rs2253042       rs2253042       rs2253042       rs2253042       rs2253044       rs2253044      

MICB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
TCATATCAAGGACCAGAAAGG
57
GTTCATAGCCAAGGTCTGAG
58
CAGAGACCGAGGACTTGAC
60
GAATGCAAGCCTCCTTTCTG
60
CAGAGACCGAGGACTTGAC
60
GAATGCAAGCCTCCTTTCTG
60
GCGATATCTGAAATCCGGG
58
CAGGTGACATTCACCATGG
59
TCAAGGACCAGAAAGGAGTG
59
GTGACGTTCATAGCCAAGG
58
AGCGATATCTGAAATCCGGG
60
AGGTGACATTCACCATGGG
60
GAGACCGAGGACTTGACAG
60
GAATGCAAGCCTCCTTTCTG
60
ATCAAGGACCAGAAAGGAGTG
59
TGACGTTCATAGCCAAGGT
59
CATATCAAGGACCAGAAAGGA
57
CGTTCATAGCCAAGGTCTG
58
GAGACCGAGGACTTGACAG
60
GAATGCAAGCCTCCTTTCTG
60
转录因子
影响基因
影响类型
参考文献链接(PubMed)
ESR1
MICB
Unknown
HDAC1
MICB
Unknown
HSF1
MICB
Activation
SP1
MICB
Activation
SP1
MICB
Unknown
SP3
MICB
Unknown

MICB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

MICB基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0006955
A0A0G2JH58 (UniProtKB)
IEA
GO:0016021
A0A0G2JH58 (UniProtKB)
IEA
GO:0006955
A0A0G2JH91 (UniProtKB)
IEA
GO:0016021
A0A0G2JH91 (UniProtKB)
IEA
GO:0006955
A0A0G2JHB5 (UniProtKB)
IEA
GO:0016021
A0A0G2JHB5 (UniProtKB)
IEA
GO:0006955
A0A0G2JNW8 (UniProtKB)
IEA
GO:0016021
A0A0G2JNW8 (UniProtKB)
IEA
GO:0006955
A0A140T979 (UniProtKB)
IEA
GO:0006955
A0A140T9D8 (UniProtKB)
IEA
GO:0006955
A0A140T9H4 (UniProtKB)
IEA
GO:0006955
A0A140T9M6 (UniProtKB)
IEA
GO:0006955
F5H7Q8 (UniProtKB)
IEA
GO:0016021
F5H7Q8 (UniProtKB)
IEA
GO:0001913
Q29980 (UniProtKB)
IBA
GO:0002429
Q29980 (UniProtKB)
IDA
GO:0003823
Q29980 (UniProtKB)
IBA
GO:0005886
Q29980 (UniProtKB)
IBA
GO:0005886
Q29980 (UniProtKB)
TAS
GO:0006979
Q29980 (UniProtKB)
IDA
GO:0009408
Q29980 (UniProtKB)
IDA
GO:0009986
Q29980 (UniProtKB)
ISS
GO:0016021
Q29980 (UniProtKB)
IEA
GO:0016032
Q29980 (UniProtKB)
IEA
GO:0019835
Q29980 (UniProtKB)
IEA
GO:0019882
Q29980 (UniProtKB)
IBA
GO:0032526
Q29980 (UniProtKB)
IDA
GO:0042267
Q29980 (UniProtKB)
IBA
GO:0046629
Q29980 (UniProtKB)
IDA
GO:0046703
Q29980 (UniProtKB)
IDA
GO:0050689
Q29980 (UniProtKB)
IDA
GO:0050689
Q29980 (UniProtKB)
IDA
GO:0050776
Q29980 (UniProtKB)
TAS
GO:0006955
X6R344 (UniProtKB)
IEA
GO:0016021
X6R344 (UniProtKB)
IEA

可能调控 MICB基因的相关microRNA:     

Reactome

BioGrid

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
Severe Dengue 0.120542884 3 0 BeFree_CTD_human
Dengue Shock Syndrome 0.120271442 2 2 BeFree_GWASCAT
Pulmonary function (finding) 0.12 1 1 GWASCAT
Ulcerative Colitis 0.010639772 4 0 BeFree_GAD_LHGDN
Infection 0.008173051 3 0 LHGDN
Multiple Sclerosis 0.008087174 3 0 BeFree_GAD_LHGDN
Lupus Erythematosus 0.007101096 3 0 GAD
Schizophrenia 0.005362824 1 0 BeFree_GAD_LHGDN
Lupus Erythematosus, Systemic 0.005005506 3 2 BeFree_GAD
Arthritis, Psoriatic 0.005005506 2 0 BeFree_GAD

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