CENPC
Centromere protein C
Also known as: CENP-C, CENPC_HUMAN, CENPC1, hcp-4, MIF2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q03188
- Gene
- CENPC
- Ensembl
- ENSG00000145241
- Chromosome
- 4
- Canonical length
- 943 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Nuclear bodies,Kinetochore,Midbody
OverviewNCBI Gene
Centromere protein C 1 is a centromere autoantigen and a component of the inner kinetochore plate. The protein is required for maintaining proper kinetochore size and a timely transition to anaphase. A putative pseudogene exists on chromosome 12. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
943 residues, UniProt reviewed canonical sequence.
>Q03188|CENPC
1 MAASGLDHLK NGYRRRFCRP SRARDINTEQ GQNVLEILQD CFEEKSLAND FSTNSTKSVP
61 NSTRKIKDTC IQSPSKECQK SHPKSVPVSS KKKEASLQFV VEPSEATNRS VQAHEVHQKI
121 LATDVSSKNT PDSKKISSRN INDHHSEADE EFYLSVGSPS VLLDAKTSVS QNVIPSSAQK
181 RETYTFENSV NMLPSSTEVS VKTKKRLNFD DKVMLKKIEI DNKVSDEEDK TSEGQERKPS
241 GSSQNRIRDS EYEIQRQAKK SFSTLFLETV KRKSESSPIV RHAATAPPHS CPPDDTKLIE
301 DEFIIDESDQ SFASRSWITI PRKAGSLKQR TISPAESTAL LQGRKSREKH HNILPKTLAN
361 DKHSHKPHPV ETSQPSDKTV LDTSYALIGE TVNNYRSTKY EMYSKNAEKP SRSKRTIKQK
421 QRRKFMAKPA EEQLDVGQSK DENIHTSHIT QDEFQRNSDR NMEEHEEMGN DCVSKKQMPP
481 VGSKKSSTRK DKEESKKKRF SSESKNKLVP EEVTSTVTKS RRISRRPSDW WVVKSEESPV
541 YSNSSVRNEL PMHHNSSRKS TKKTNQSSKN IRKKTIPLKR QKTATKGNQR VQKFLNAEGS
601 GGIVGHDEIS RCSLSEPLES DEADLAKKKN LDCSRSTRSS KNEDNIMTAQ NVPLKPQTSG
661 YTCNIPTESN LDSGEHKTSV LEESGPSRLN NNYLMSGKND VDDEEVHGSS DDSKQSKVIP
721 KNRIHHKLVL PSNTPNVRRT KRTRLKPLEY WRGERIDYQG RPSGGFVISG VLSPDTISSK
781 RKAKENIGKV NKKSNKKRIC LDNDERKTNL MVNLGIPLGD PLQPTRVKDP ETREIILMDL
841 VRPQDTYQFF VKHGELKVYK TLDTPFFSTG KLILGPQEEK GKQHVGQDIL VFYVNFGDLL
901 CTLHETPYIL STGDSFYVPS GNYYNIKNLR NEESVLLFTQ IKRLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CENPC 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)
- 0.64
- Highest tissue expression
- 5.5 nTPM
Expression across tissuesHPA
Tissue
- ovary: 5.5 nTPM
- pancreas: 3.7 nTPM
- bone marrow: 3.3 nTPM
- breast: 3.1 nTPM
- endometrium: 2.9 nTPM
- thyroid gland: 2.9 nTPM
Single-cell type
- neutrophil progenitors: 269 nCPM
- respiratory ionocytes: 203 nCPM
- lactotrophs: 197 nCPM
- somatotrophs: 187 nCPM
- t-cells: 175 nCPM
- thyrotrophs: 167 nCPM
Immune cell
- naive B-cell: 1.1 nTPM
- naive CD4 T-cell: 1.1 nTPM
- naive CD8 T-cell: 0.9 nTPM
- memory B-cell: 0.8 nTPM
- memory CD4 T-cell: 0.8 nTPM
- memory CD8 T-cell: 0.8 nTPM
Brain region
- cerebellum: 18 nTPM
- basal ganglia: 13 nTPM
- white matter: 12 nTPM
- cerebral cortex: 11 nTPM
- hypothalamus: 10 nTPM
- midbrain: 10 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CENPC.
Disease | ImmuneIEDB
Conditions an epitope on CENPC was assayed in.
- systemic scleroderma B cell
ReferencesPubMed · IEDB
Publications for CENPC from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
8 publications
- CENP-C, an autoantigen in scleroderma, is a component of the human inner kinetochore plate.
1992 · Cell · RCR 5.8 · 325 citations - Visualization of centromere proteins CENP-B and CENP-C on a stable dicentric chromosome in cytological spreads.
1989 · Chromosoma · RCR 5.1 · 283 citations - CENP-C is required for maintaining proper kinetochore size and for a timely transition to anaphase.
1994 · J Cell Biol · RCR 3 · 175 citations - Genomic microarray analysis reveals distinct locations for the CENP-A binding domains in three human chromosome 13q32 neocentromeres.
2003 · Hum Mol Genet · RCR 1.4 · 88 citations - Anticentromere antibody-positive primary Sjögren's syndrome: Epitope analysis of a subset of anticentromere antibody-positive patients.
2017 · Mod Rheumatol · RCR 0.6 · 12 citations
Show 3 more
- Centromere/kinetochore localization of human centromere protein A (CENP-A) exogenously expressed as a fusion to green fluorescent protein.
2000 · Cell Struct Funct · RCR 0.4 · 27 citations - Evolutionary and clinical neocentromeres: two faces of the same coin?
2008 · Chromosoma · RCR 0.3 · 16 citations - Immunization with CENP-C Causes Aberrant Chromosome Segregation during Oocyte Meiosis in Mice.
2021 · J Immunol Res · RCR 0.1 · 2 citations
Reference: B cellIEDB
1 publication
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
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)
- 0.55
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.76
- DepMap mean gene effect
- -0.96
- DepMap dependency class
- common
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- attachment of mitotic spindle microtubules to kinetochore
- cell division
- chromosome segregation
- kinetochore assembly
- mitotic cell cycle
- spindle attachment to meiosis I kinetochore
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- RmlC-like cupin domain superfamily
- RmlC-like jelly roll fold
- Mif2/CENP-C cupin domain
- Kinetochore assembly subunit CENP-C, N-terminal domain
- Centromere protein C/Mif2/cnp3
- CENP-C, middle DNMT3B-binding domain
- Mif2/CENP-C like
- Centromere assembly component CENP-C middle DNMT3B-binding region
- Kinetochore assembly subunit CENP-C N-terminal
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CENPC 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 CENPC as an antibody target. Whether an autoantibody or antibody against CENPC could matter depends on whether native CENPC is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CENPC 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.
Source-annotated serology context
The source annotations explicitly mention antibody, autoantibody, autoantigen, or autoimmune context. This is biological context, not study-specific reactivity.
- Centromere protein C 1 is a centromere autoantigen and a component of the inner kinetochore plate.
Loading the interactive Seroatlas protein explorer...