CCT7
T-complex protein 1 subunit eta
Also known as: Ccth, Nip7-1, TCPH_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q99832
- Gene
- CCT7
- Ensembl
- ENSG00000135624
- Chromosome
- 2
- Canonical length
- 543 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Cytosol
OverviewNCBI Gene
This gene encodes a molecular chaperone that is a member of the chaperonin containing TCP1 complex (CCT), also known as the TCP1 ring complex (TRiC). This complex consists of two identical stacked rings, each containing eight different proteins. Unfolded polypeptides enter the central cavity of the complex and are folded in an ATP-dependent manner. The complex folds various proteins, including actin and tubulin. Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 5 and 6. [provided by RefSeq, Oct 2009]
Canonical amino-acid sequenceUniProt
543 residues, UniProt reviewed canonical sequence.
>Q99832|CCT7
1 MMPTPVILLK EGTDSSQGIP QLVSNISACQ VIAEAVRTTL GPRGMDKLIV DGRGKATISN
61 DGATILKLLD VVHPAAKTLV DIAKSQDAEV GDGTTSVTLL AAEFLKQVKP YVEEGLHPQI
121 IIRAFRTATQ LAVNKIKEIA VTVKKADKVE QRKLLEKCAM TALSSKLISQ QKAFFAKMVV
181 DAVMMLDDLL QLKMIGIKKV QGGALEDSQL VAGVAFKKTF SYAGFEMQPK KYHNPKIALL
241 NVELELKAEK DNAEIRVHTV EDYQAIVDAE WNILYDKLEK IHHSGAKVVL SKLPIGDVAT
301 QYFADRDMFC AGRVPEEDLK RTMMACGGSI QTSVNALSAD VLGRCQVFEE TQIGGERYNF
361 FTGCPKAKTC TFILRGGAEQ FMEETERSLH DAIMIVRRAI KNDSVVAGGG AIEMELSKYL
421 RDYSRTIPGK QQLLIGAYAK ALEIIPRQLC DNAGFDATNI LNKLRARHAQ GGTWYGVDIN
481 NEDIADNFEA FVWEPAMVRI NALTAASEAA CLIVSVDETI KNPRSTVDAP TAAGRGRGRG
541 RPHLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CCT7 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.26
- Highest tissue expression
- 252 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 252 nTPM
- tongue: 225 nTPM
- heart muscle: 157 nTPM
- testis: 152 nTPM
- choroid plexus: 149 nTPM
- tonsil: 148 nTPM
Single-cell type
- late primary spermatocytes: 740 nCPM
- late spermatids: 361 nCPM
- early spermatids: 360 nCPM
- esophageal basal cells: 286 nCPM
- decidual stromal cells: 256 nCPM
- migrating cytotrophoblasts: 245 nCPM
Immune cell
- total PBMC: 299 nTPM
- memory B-cell: 217 nTPM
- MAIT T-cell: 212 nTPM
- non-classical monocyte: 211 nTPM
- naive B-cell: 210 nTPM
- naive CD4 T-cell: 209 nTPM
Brain region
- white matter: 110 nTPM
- choroid plexus: 109 nTPM
- hypothalamus: 101 nTPM
- pons: 101 nTPM
- cerebellum: 101 nTPM
- spinal cord: 97 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CCT7.
Disease | GeneticClinVar
1 pathogenic / likely-pathogenic of 79 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.3
- gnomAD pLI
- 0.98
- gnomAD missense Z
- 2.26
- DepMap mean gene effect
- -1.28
- DepMap dependency class
- pan
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 7% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- binding of sperm to zona pellucida
- positive regulation of protein localization to Cajal body
- positive regulation of telomerase RNA localization to Cajal body
- positive regulation of telomere maintenance via telomerase
- protein folding
- protein stabilization
Molecular functions
- ATP binding
- ATP hydrolysis activity
- ATP-dependent protein folding chaperone
- identical protein binding
- protein folding chaperone
- unfolded protein binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CCT7 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CCT7 as an antibody target. Whether an autoantibody or antibody against CCT7 could matter depends on whether native CCT7 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CCT7 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label CCT7 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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