CCT4 (chaperonin containing TCP1 subunit 4)

symbol:
CCT4
locus group:
protein-coding gene
location:
2p15
gene_family:
Chaperonins
alias symbol:
Cctd
alias name:
None
entrez id:
10575
ensembl gene id:
ENSG00000115484
ucsc gene id:
uc002sbo.5
refseq accession:
NM_001256721
hgnc_id:
HGNC:1617
approved reserved:
1999-02-26
2p15

CCT4(Chaperonin Containing TCP1 subunit 4)是分子伴侣蛋白家族CCT/TRiC(TCP1环复合体)的成员之一,该家族由8个亚基(CCT1-8)组成,共同形成一个桶状结构,协助蛋白质的正确折叠。CCT家族的特点是通过ATP依赖的方式帮助新合成的多肽链(尤其是细胞骨架蛋白如肌动蛋白和微管蛋白)完成三维构象的组装,并参与应激条件下的蛋白质质量控制。CCT4作为核心亚基,与其他成员协同作用,维持复合体的稳定性。其表达产物(即CCT4蛋白)的生物学功能包括促进细胞骨架形成、调控细胞周期进程(如通过折叠周期蛋白依赖性激酶CDK的底物)以及参与信号转导(如Hedgehog通路)。主要作用位点为细胞质,尤其在快速增殖的细胞(如肿瘤细胞)中活性较高。突变可能导致CCT4功能丧失,引发蛋白质错误折叠聚集,与神经退行性疾病(如亨廷顿病)和癌症(如乳腺癌、结直肠癌)相关。例如,CCT4突变会损害微管蛋白折叠,导致纺锤体异常,进而影响染色体分离,促进肿瘤发生。过表达CCT4可能加速肿瘤细胞增殖和转移(如通过上调EMT上皮-间质转化相关基因),而敲低表达则会引发细胞周期阻滞(如G1/S期停滞)并增加对化疗的敏感性。在基因家族层面,CCT亚基具有高度保守的ATP结合域和底物识别区域,但各亚基对特定客户蛋白(client proteins)的选择性不同。例如,CCT4与微管蛋白的折叠效率密切相关,而CCT1更偏向肌动蛋白。目前研究还发现CCT4与病毒感染(如HIV衣壳组装)存在交互作用,但其机制尚未完全阐明。

中文English

含TCP1(MIM 186980)复合物(CCT)的伴侣,也叫TCP1环复杂,包括2个背到后面环,每个含有8个独一无二的,但相同亚基组成,如CCT4的。 CCT协助新翻译的多肽基板通过多轮ATP驱动的发布和部分折叠中间形式重新绑定的折叠。 CCT的底物包括细胞骨架蛋白的肌动蛋白(参见MIM 102560)和微管蛋白(见MIM 191130),以及阿尔法 - 转导(MIM 139330)(Won等人,1998 [搜索PubMed 9819444])。[由OMIM,三月供给2008]

CCT4基因的碱基序列:[NCBI]
Loading Gene Browser...
蛋白质序列
1MPENVAPRSG ATAGAAGGRG KGAYQDRDKP AQIRFSNISA
41AKAVADAIRT SLGPKGMDKM IQDGKGDVTI TNDGATILKQ
81 MQVLHPAAR MLVELSKAQD IEAGDGTTSV VIIAGSLLDS
121CTKLLQKGIH PTIISESFQK ALEKGIEILT DMSRPVELSD
161R ETLLNSAT TSLNSKVVSQ YSSLLSPMSV NAVMKVIDPA
201TATSVDLRDI KIVKKLGGTI DDCELVEGLV LTQKVSNSGI
241TR VEKAKIG LIQFCLSAPK TDMDNQIVVS DYAQMDRVLR
281EERAYILNLV KQIKKTGCNV LLIQKSILRD ALSDLALHFL
321NKM KIMVIK DIEREDIEFI CKTIGTKPVA HIDQFTADML
361GSAELAEEVN LNGSGKLLKI TGCASPGKTV TIVVRGSNKL
401VIEE AERSI HDALCVIRCL VKKRALIAGG GAPEIELALR
441LTEYSRTLSG MESYCVRAFA DAMEVIPSTL AENAGLNPIS
481TVTEL RNRH AQGEKTAGIN VRKGGISNIL EELVVQPLLV
521SVSALTLATE TVRSILKIDD VVNTR
结构预测来自 AlphaFold DB(UniProt: P50991),颜色表示 pLDDT 置信度(深蓝高、黄橙低)。
CCT4基因的碱基突变:           仅显示部分snp
rs4795       rs1131406       rs1534646       rs1881615       rs2272428       rs2272429       rs2421438       rs2421442       rs2421505       rs2901428       rs3828276       rs3980725       rs4672463       rs5831625       rs6545913       rs6545914       rs6545915      

CCT4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
CTTCAGAAAGGGATTCATCCA
58
GTCAGTCAAGATTTCAATGCC
58
CATGCAGTCTTCACTAGGG
58
CAGTTCCAATAAGCAATAAGCG
59
CTTCAGAAAGGGATTCATCCA
58
GTCAGTCAAGATTTCAATGCC
58
TCAGTCAGTGCTCTGACTC
59
CCAGATTATCGAGTGTTTACCAC
59
GATTGCATGCAGTCTTCAC
57
CCAATAAGCAATAAGCGACAG
58
AGATGATGTGGTAAACACTCG
58
CTTCTTCCATTCCAGCCAC
59
TCTTCAGAAAGGGATTCATCCA
59
TCAGTCAAGATTTCAATGCCC
59
TCTTCAGAAAGGGATTCATCCA
59
TCAGTCAAGATTTCAATGCCC
59
GATGATGTGGTAAACACTCGA
58
CTTCTTCCATTCCAGCCAC
59
CTGAACTCAAAGGTGGTTTCTC
60
TGGGTCAATCACTTTCATCAC
59
      尚未收录相关数据

CCT4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

CCT4基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0002199
P50991 (UniProtKB)
IEA
GO:0005515
P50991 (UniProtKB)
IPI
GO:0005524
P50991 (UniProtKB)
IEA
GO:0005654
P50991 (UniProtKB)
IDA
GO:0005737
P50991 (UniProtKB)
IDA
GO:0005813
P50991 (UniProtKB)
IDA
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005829
P50991 (UniProtKB)
TAS
GO:0005832
P50991 (UniProtKB)
IDA
GO:0005832
P50991 (UniProtKB)
TAS
GO:0005874
P50991 (UniProtKB)
IDA
GO:0006457
P50991 (UniProtKB)
TAS
GO:0007339
P50991 (UniProtKB)
IEA
GO:0032212
P50991 (UniProtKB)
IMP
GO:0042470
P50991 (UniProtKB)
IEA
GO:0042995
P50991 (UniProtKB)
IEA
GO:0044297
P50991 (UniProtKB)
IEA
GO:0044822
P50991 (UniProtKB)
IDA
GO:0050821
P50991 (UniProtKB)
IMP
GO:0051082
P50991 (UniProtKB)
IEA
GO:0051973
P50991 (UniProtKB)
IMP
GO:0070062
P50991 (UniProtKB)
IDA
GO:0070062
P50991 (UniProtKB)
IDA
GO:0070062
P50991 (UniProtKB)
IDA
GO:0090666
P50991 (UniProtKB)
IMP
GO:0090666
P50991 (UniProtKB)
IMP
GO:0090666
P50991 (UniProtKB)
IMP
GO:1901998
P50991 (UniProtKB)
IEA
GO:1904851
P50991 (UniProtKB)
IMP
GO:1904871
P50991 (UniProtKB)
IMP
GO:1904874
P50991 (UniProtKB)
IMP

可能调控 CCT4基因的相关microRNA:     

String
BioGrid
IntAct
mentha
MINT
Reactome
加载中…
关联基因 作用方式 资源库来源/分值
疾病名称 关系值 NofPmids NofSnps 来源
疾病名称 关系值 NofPmids NofSnps 来源
Sensory neuropathy 0.000542884 2 0 BeFree
Sensory Neuropathy, Hereditary 0.000542884 2 0 BeFree
Neuroblastoma 0.000271442 1 0 BeFree
Non-Small Cell Lung Carcinoma 0.000271442 1 0 BeFree
Central neuroblastoma 0.000271442 1 0 BeFree
Cotranslational assembly directs the biogenesis of the m6A methyltransferase complex.
Wu X, Zhang H, Huang L, Zhang S, He J, Wang S, Zhu W, Li Y, Zhou J, Liu XM Proc Natl Acad Sci U S A IF: 9.5 2026-01-06
TRiC-assisted folding of class I HDAC family proteins regulated by distinct co-chaperone and cofactor networks.
Li Z, Zhao Q, Jiang W, Song Q, Zhou X, Shi X, Zhang Q, Wang Y, Lin Y, Yin Y, Pan C, Cong Y Sci Adv IF: 12.5 2026-07-17
Over-Expression Analysis of All Eight Subunits of the Molecular Chaperone CCT in Mammalian Cells Reveals a Novel Function for CCTdelta.
Spiess Matthias, Echbarthi Meriem, Svanström Andreas, Karlsson Roger, Grantham Julie J Mol Biol IF: 4.7 2015-11-20
Silencing of long noncoding RNA MALAT1 by miR-101 and miR-217 inhibits proliferation, migration, and invasion of esophageal squamous cell carcinoma cells.
Wang Xinyu, Li Meng, Wang Zhiqiong, Han Sichong, Tang Xiaohu, Ge Yunxia, Zhou Liqing, Zhou Changchun, Yuan Qipeng, Yang Ming J Biol Chem IF: 4.1 2015-05-08
Serum antibody response to group II chaperonin from Methanobrevibacter oralis and human chaperonin CCT.
Hirai Kimito, Maeda Hiroshi, Omori Kazuhiro, Yamamoto Tadashi, Kokeguchi Susumu, Takashiba Shogo Pathog Dis IF: 2.7 2014-04-28
Biochemical characterization of mutants in chaperonin proteins CCT4 and CCT5 associated with hereditary sensory neuropathy.
Sergeeva Oksana A, Tran Meme T, Haase-Pettingell Cameron, King Jonathan A J Biol Chem IF: 4.1 2014-12-17
Human CCT4 and CCT5 chaperonin subunits expressed in Escherichia coli form biologically active homo-oligomers.
Sergeeva Oksana A, Chen Bo, Haase-Pettingell Cameron, Ludtke Steven J, Chiu Wah, King Jonathan A J Biol Chem IF: 4.1 2013-08-21
Analyzing microarray data of Alzheimer's using cluster analysis to identify the biomarker genes.
Guttula Satya Vani, Allam Apparao, Gumpeny R Sridhar Int J Alzheimers Dis 2012-08-23
Molecular targets for diabetes mellitus-associated erectile dysfunction.
Yohannes Elizabeth, Chang Jinsook, Tar Moses T, Davies Kelvin P, Chance Mark R Mol Cell Proteomics IF: 6.540 2010-07-13
MALAT-1 enhances cell motility of lung adenocarcinoma cells by influencing the expression of motility-related genes.
Tano Keiko, Mizuno Rie, Okada Tomoko, Rakwal Randeep, Shibato Junko, Masuo Yoshinori, Ijiri Kenichi, Akimitsu Nobuyoshi FEBS Lett IF: 3.1 2010-12-20

评论加载中...

登录后即可发表评论 登录 注册

联系地址

山东省济南市章丘区文博路2号

齐鲁师范学院 genelibs生信实验室

山东省济南市高新区舜华路750号

大学科技园北区F座4单元2楼

电话: 0531-88819269

微信公众号

关注微信订阅号,实时查看信息,关注医学生物学动态。


商务邮箱

E-mail: [email protected]