PRKCH
Protein kinase C eta type
Also known as: KPCL_HUMAN, PKC-L, PKCL, PRKCL
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P24723
- Gene
- PRKCH
- Ensembl
- ENSG00000027075
- Chromosome
- 14
- Canonical length
- 683 aa
- Protein class
- Cancer-related genes, Disease related genes, Enzymes, Potential drug targets, Predicted intracellular proteins
- Subcellular location
- Plasma membrane,Cytosol
OverviewNCBI Gene
Protein kinase C (PKC) is a family of serine- and threonine-specific protein kinases that can be activated by calcium and the second messenger diacylglycerol. PKC family members phosphorylate a wide variety of protein targets and are known to be involved in diverse cellular signaling pathways. PKC family members also serve as major receptors for phorbol esters, a class of tumor promoters. Each member of the PKC family has a specific expression profile and is believed to play a distinct role in cells. The protein encoded by this gene is one of the PKC family members. It is a calcium-independent and phospholipids-dependent protein kinase. It is predominantly expressed in epithelial tissues and has been shown to reside specifically in the cell nucleus. This protein kinase can regulate keratinocyte differentiation by activating the MAP kinase MAPK13 (p38delta)-activated protein kinase cascade that targets CCAAT/enhancer-binding protein alpha (CEBPA). It is also found to mediate the transcription activation of the transglutaminase 1 (TGM1) gene. Mutations in this gene are associated with susceptibility to cerebral infarction. [provided by RefSeq, Sep 2015]
Canonical amino-acid sequenceUniProt
683 residues, UniProt reviewed canonical sequence.
>P24723|PRKCH
1 MSSGTMKFNG YLRVRIGEAV GLQPTRWSLR HSLFKKGHQL LDPYLTVSVD QVRVGQTSTK
61 QKTNKPTYNE EFCANVTDGG HLELAVFHET PLGYDHFVAN CTLQFQELLR TTGASDTFEG
121 WVDLEPEGKV FVVITLTGSF TEATLQRDRI FKHFTRKRQR AMRRRVHQIN GHKFMATYLR
181 QPTYCSHCRE FIWGVFGKQG YQCQVCTCVV HKRCHHLIVT ACTCQNNINK VDSKIAEQRF
241 GINIPHKFSI HNYKVPTFCD HCGSLLWGIM RQGLQCKICK MNVHIRCQAN VAPNCGVNAV
301 ELAKTLAGMG LQPGNISPTS KLVSRSTLRR QGKESSKEGN GIGVNSSNRL GIDNFEFIRV
361 LGKGSFGKVM LARVKETGDL YAVKVLKKDV ILQDDDVECT MTEKRILSLA RNHPFLTQLF
421 CCFQTPDRLF FVMEFVNGGD LMFHIQKSRR FDEARARFYA AEIISALMFL HDKGIIYRDL
481 KLDNVLLDHE GHCKLADFGM CKEGICNGVT TATFCGTPDY IAPEILQEML YGPAVDWWAM
541 GVLLYEMLCG HAPFEAENED DLFEAILNDE VVYPTWLHED ATGILKSFMT KNPTMRLGSL
601 TQGGEHAILR HPFFKEIDWA QLNHRQIEPP FRPRIKSRED VSNFDPDFIK EEPVLTPIDE
661 GHLPMINQDE FRNFSYVSPE LQPLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PRKCH 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)
- 0.3
- Highest tissue expression
- 60 nTPM
Expression across tissuesHPA
Tissue
- thymus: 60 nTPM
- lymph node: 52 nTPM
- spleen: 36 nTPM
- tonsil: 36 nTPM
- lung: 34 nTPM
- placenta: 30 nTPM
Single-cell type
- nk-cells: 1,248 nCPM
- t-cells: 972 nCPM
- vascular endothelial cells: 613 nCPM
- hematopoietic stem cells: 492 nCPM
- innate lymphoid cells: 436 nCPM
- esophageal apical cells: 396 nCPM
Immune cell
- memory CD8 T-cell: 136 nTPM
- gdT-cell: 116 nTPM
- NK-cell: 113 nTPM
- naive CD4 T-cell: 108 nTPM
- naive CD8 T-cell: 105 nTPM
- MAIT T-cell: 91 nTPM
Brain region
- thalamus: 62 nTPM
- basal ganglia: 60 nTPM
- midbrain: 43 nTPM
- amygdala: 42 nTPM
- pons: 38 nTPM
- medulla oblongata: 38 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about PRKCH.
Disease | AllUniProt
Conditions PRKCH is implicated in, by any mechanism.
- Ischemic stroke (ISCHSTR) MIM:601367
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)
- 0.39
- gnomAD pLI
- 0.43
- gnomAD missense Z
- 2.19
- DepMap mean gene effect
- 0.07
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell differentiation
- intracellular signal transduction
- negative regulation of glial cell apoptotic process
- phospholipase C/protein kinase C signal transduction
- positive regulation of B cell receptor signaling pathway
- positive regulation of glial cell proliferation
- positive regulation of keratinocyte differentiation
- positive regulation of macrophage derived foam cell differentiation
- positive regulation of NF-kappaB transcription factor activity
- positive regulation of protein localization to plasma membrane
- protein phosphorylation
- regulation of bicellular tight junction assembly
- signal transduction
Molecular functions
- ATP binding
- diacylglycerol-dependent serine/threonine kinase activity
- diacylglycerol-dependent, calcium-independent serine/threonine kinase activity
- enzyme binding
- protein kinase activity
- protein serine kinase activity
- protein serine/threonine kinase activity
- small GTPase binding
- zinc ion binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- C2 domain
- Protein kinase domain
- AGC-kinase, C-terminal
- Protein kinase C-like, phorbol ester/diacylglycerol-binding domain
- Serine/threonine-protein kinase, active site
- Protein kinase-like domain superfamily
- Protein kinase C, delta/epsilon/eta/theta types
- Protein kinase, ATP binding site
- Protein kinase, C-terminal
- Diacylglycerol/phorbol-ester binding
- C2 domain superfamily
- C1-like domain superfamily
- Protein kinase domain
- Phorbol esters/diacylglycerol binding domain (C1 domain)
- C2 domain
- Protein kinase C terminal domain
- Protein kinase C, eta
- Novel protein kinase C eta, catalytic domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of PRKCH 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 PRKCH as an antibody target. Whether an autoantibody or antibody against PRKCH could matter depends on whether native PRKCH is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PRKCH 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 PRKCH as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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