PRKCI protein kinase C iota [Homo sapiens (human)] - Gene

Summary

Official Symbol: PRKCIprovided by HGNC
Official Full Name: protein kinase C iotaprovided by HGNC
Primary source: HGNC:HGNC:9404
See related: Ensembl:ENSG00000163558 MIM:600539; AllianceGenome:HGNC:9404
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: PKCI; DXS1179E; nPKC-iota
Summary: This gene encodes a member of the protein kinase C (PKC) family of serine/threonine protein kinases. The PKC family comprises at least eight members, which are differentially expressed and are involved in a wide variety of cellular processes. This protein kinase is calcium-independent and phospholipid-dependent. It is not activated by phorbolesters or diacylglycerol. This kinase can be recruited to vesicle tubular clusters (VTCs) by direct interaction with the small GTPase RAB2, where this kinase phosphorylates glyceraldehyde-3-phosphate dehydrogenase (GAPD/GAPDH) and plays a role in microtubule dynamics in the early secretory pathway. This kinase is found to be necessary for BCL-ABL-mediated resistance to drug-induced apoptosis and therefore protects leukemia cells against drug-induced apoptosis. There is a single exon pseudogene mapped on chromosome X. [provided by RefSeq, Jul 2008]
Expression: Ubiquitous expression in stomach (RPKM 19.1), thyroid (RPKM 17.9) and 24 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 3q26.2

Exon count:: 19

Annotation release	Status	Assembly	Chr	Location
RS_2023_10	current	GRCh38.p14 (GCF_000001405.40)	3	NC_000003.12 (170222424..170305977)
RS_2023_10	current	T2T-CHM13v2.0 (GCF_009914755.1)	3	NC_060927.1 (173007078..173090623)
105.20220307	previous assembly	GRCh37.p13 (GCF_000001405.25)	3	NC_000003.11 (169940212..170023765)

Chromosome 3 - NC_000003.12 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: HPA RNA-seq normal tissues
Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
BioProject: PRJEB4337
Publication: PMID 24309898
Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Enhanced SREBP2-driven cholesterol biosynthesis by PKClambda/iota deficiency in intestinal epithelial cells promotes aggressive serrated tumorigenesis.
Title: Enhanced SREBP2-driven cholesterol biosynthesis by PKCλ/ι deficiency in intestinal epithelial cells promotes aggressive serrated tumorigenesis.
Paired protein kinases PRKCI-RIPK2 promote pancreatic cancer growth and metastasis via enhancing NF-kappaB/JNK/ERK phosphorylation.
Title: Paired protein kinases PRKCI-RIPK2 promote pancreatic cancer growth and metastasis via enhancing NF-κB/JNK/ERK phosphorylation.
Investigation of UTR Variants by Computational Approaches Reveal Their Functional Significance in PRKCI Gene Regulation.
Title: Investigation of UTR Variants by Computational Approaches Reveal Their Functional Significance in PRKCI Gene Regulation.
PKCiota Is a Promising Prognosis Biomarker and Therapeutic Target for Pancreatic Cancer.
Title: PKCι Is a Promising Prognosis Biomarker and Therapeutic Target for Pancreatic Cancer.
Human placenta and trophoblasts simultaneously express three isoforms of atypical protein kinase-c.
Title: Human placenta and trophoblasts simultaneously express three isoforms of atypical protein kinase-c.
Protein kinase Ciota and SRC signaling define reciprocally related subgroups of glioblastoma with distinct therapeutic vulnerabilities.
Title: Protein kinase C(ι) and SRC signaling define reciprocally related subgroups of glioblastoma with distinct therapeutic vulnerabilities.
Hepatocyte polarity establishment and apical lumen formation are organized by Par3, Cdc42, and aPKC in conjunction with Lgl.
Title: Hepatocyte polarity establishment and apical lumen formation are organized by Par3, Cdc42, and aPKC in conjunction with Lgl.
PKClambda/iota inhibition activates an ULK2-mediated interferon response to repress tumorigenesis.
Title: PKCλ/ι inhibition activates an ULK2-mediated interferon response to repress tumorigenesis.
CircPRKCI regulates proliferation, migration and cycle of lung adenocarcinoma cells by targeting miR-219a-5p-regulated CAMK1D.
Title: CircPRKCI regulates proliferation, migration and cycle of lung adenocarcinoma cells by targeting miR-219a-5p-regulated CAMK1D.
ELF3 Is a Target That Promotes Therapeutic Efficiency in EGFR Tyrosine Kinase Inhibitor-Resistant Non-Small Cell Lung Cancer Cells via Inhibiting PKCiota.
Title: ELF3 Is a Target That Promotes Therapeutic Efficiency in EGFR Tyrosine Kinase Inhibitor-Resistant Non-Small Cell Lung Cancer Cells via Inhibiting PKCί.

Submit: New GeneRIF Correction See all GeneRIFs (133)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

HIV-1 interactions

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Protein interactions

Protein	Gene	Interaction	Pubs
Envelope surface glycoprotein gp120	env	HIV-1 gp120 upregulates the expression of protein kinase C, iota (PRKCI) in human B cells	PubMed
	env	HIV-1 gp120 activates forward trafficking and surface clustering of NMDA receptors in membrane micro domains by a PKA-dependent phosphorylation of the NR1 C-terminal Ser897, followed by a PKC-dependent phosphorylation of Ser896	PubMed
	env	Pre-treatment of endothelial cells with fibroblast growth factor 2 (FGF2) protects cells from HIV-1 gp120 angiotoxicity; this protection is regulated by crosstalk among the ERK, PI3K-AKT and PKC signaling pathways	PubMed
	env	Down modulation of the interaction between HIV-1 gp120 and CD4 by TPA is blocked by protein kinase C (PKC) inhibitors, suggesting PKC may play an important role in HIV-1 infection	PubMed
	env	IL-16 induces rapid translocation of PKC from the cytosol to the membrane in CD4+ cells; PKC inhibitors completely block IL-16-induced lymphocyte migration as well as the motile response induced by HIV-1 gp120 and anti-CD4 antibody binding to CD4	PubMed
	env	c-FLIPL inhibits Bax activation via modulating PKC expression at the transcriptional level involving AP-2 during gp120 treatment	PubMed
	env	A specific interaction between CD4 and HIV-1 gp120 is required for phosphorylation of CD4, which could involve protein kinase C	PubMed
	env	HIV-1 gp120 increases the levels of calcium-dependent and -independent PKC isozymes; the most striking change is observed in PKC-zeta isozyme levels	PubMed
	env	Induction of apoptosis in cell cultures through binding of HIV-1 gp120 or gp160 to CXCR4 involves protein kinase C, basic fibroblast growth factor, caspase-3, and the pro-apoptotic molecule Bax	PubMed
Envelope surface glycoprotein gp160, precursor	env	HIV-1 gp160-induced AP-1 complex formation is dependent upon protein tyrosine phosphorylation and is abolished by inhibitors of protein kinase C, but it is unaffected by calcium channel blockers or cyclosporine A	PubMed
Envelope transmembrane glycoprotein gp41	env	A synthetic peptide corresponding to cytoplasmic domain residues 828-848 of HIV-1 gp41 inhibits pKC-catalysed phosphorylation of a protein substrate	PubMed
	env	A synthetic peptide containing residues 581-597 from HIV-1 gp41 inhibits protein kinase C (pkC)-mediated phosphorylation of the CD3 gamma-chain in intact cells and directly inhibits partially purified pkC	PubMed
Pr55(Gag)	gag	The phosphorylation of HIV-1 Gag by PRKCI regulates HIV-1 Vpr incorporation into virions and HIV-1 replication in macrophages	PubMed
	gag	Immunoprecipation analysis demonstrates that PRKCI binds HIV-1 Gag and phosphorylates Gag at position serine 487 in the p6 domain of Gag	PubMed
	gag	The amplified luminescent proximity homogeneous assay (AlphaScreen) identifies the interaction of HIV-1 Gag with PRKCI	PubMed
Tat	tat	Phospholipase C/protein kinase C signaling pathway-dependent phosphorylation of p44/42 and JNK MAP kinases participates partially in IL-1beta induction by TAT	PubMed
	tat	Protein kinase C is required for HIV-1 Tat-mediated transactivation of the viral LTR promoter, indicating protein kinase C regulates the process of HIV-1 transactivation and may play a role in the transition of HIV from latency to productive growth	PubMed
	tat	Protein kinase C phosphorylates HIV-1 Tat on serine residue 46	PubMed
	tat	HIV-1 Tat activates protein kinase C, resulting in the induction of TNF-alpha, IL-6 and IL-10 expression and the secretion of MCP-1	PubMed
Vpr	vpr	The phosphorylation of HIV-1 Gag at Ser487 by PRKCI regulates HIV-1 Vpr incorporation into virions and HIV-1 replication in macrophages	PubMed
matrix	gag	Protein kinase C (PKC) phosphorylates HIV-1 Matrix on serine residue 111 resulting in a shift in localization of Matrix from the cytosol to the cellular membrane, suggesting a myristoyl-protein switch regulated by PKC phosphorylation	PubMed
retropepsin	gag-pol	Phosphorylation of human recombinant vimentin by PKC inhibits the proteolytic processing of the vimentin head domain by HIV-1 protease	PubMed
reverse transcriptase	gag-pol	HIV-1 RT heterodimer expressed in bacteria can be phosphorylated in vitro by several purified mammalian protein kinases including auto-activated protein kinase (PK), CKII, cytosolic protamine kinase (CPK), myelin basic protein kinase 1 (MBPK1), and PRKC	PubMed

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

D10S275 (e-PCR)
- UniSTS:147992

D3S3929 (e-PCR)
- UniSTS:28210

SHGC-77518 (e-PCR)
- UniSTS:19280

SHGC-59107 (e-PCR)
- UniSTS:94299

RH36905 (e-PCR)
- UniSTS:87932

RH65381 (e-PCR)
- UniSTS:92818

DXS7583 (e-PCR)
- UniSTS:99736

G63586 (e-PCR)
- UniSTS:140697

G62256 (e-PCR)
- UniSTS:139428

RH65164 (e-PCR)
- UniSTS:86955

SHGC-77522 (e-PCR)
- UniSTS:8132

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables ATP binding	TAS Traceable Author Statement more info	PubMed
enables diacylglycerol-dependent serine/threonine kinase activity	EXP Inferred from Experiment more info	PubMed
enables diacylglycerol-dependent serine/threonine kinase activity	ISS Inferred from Sequence or Structural Similarity more info
enables diacylglycerol-dependent serine/threonine kinase activity	TAS Traceable Author Statement more info
enables metal ion binding	IEA Inferred from Electronic Annotation more info
enables phospholipid binding	IDA Inferred from Direct Assay more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein kinase activity	IDA Inferred from Direct Assay more info	PubMed
enables protein serine kinase activity	IEA Inferred from Electronic Annotation more info
enables protein serine/threonine kinase activity	IBA Inferred from Biological aspect of Ancestor more info
enables protein serine/threonine kinase activity	IDA Inferred from Direct Assay more info	PubMed

Process	Evidence Code	Pubs
involved_in Golgi vesicle budding	IEA Inferred from Electronic Annotation more info
involved_in actin filament organization	IEA Inferred from Electronic Annotation more info
involved_in cell migration	IEA Inferred from Electronic Annotation more info
involved_in cell-cell junction organization	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in cellular response to chemical stress	TAS Traceable Author Statement more info
involved_in cellular response to insulin stimulus	ISS Inferred from Sequence or Structural Similarity more info
involved_in cytoskeleton organization	NAS Non-traceable Author Statement more info	PubMed
involved_in establishment of apical/basal cell polarity	IEA Inferred from Electronic Annotation more info
involved_in establishment or maintenance of epithelial cell apical/basal polarity	IDA Inferred from Direct Assay more info	PubMed
involved_in establishment or maintenance of epithelial cell apical/basal polarity	ISS Inferred from Sequence or Structural Similarity more info
involved_in establishment or maintenance of epithelial cell apical/basal polarity	TAS Traceable Author Statement more info	PubMed
involved_in eye photoreceptor cell development	IEA Inferred from Electronic Annotation more info
involved_in intracellular signal transduction	IBA Inferred from Biological aspect of Ancestor more info
involved_in membrane organization	NAS Non-traceable Author Statement more info	PubMed
involved_in negative regulation of apoptotic process	TAS Traceable Author Statement more info
involved_in negative regulation of glial cell apoptotic process	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in negative regulation of neuron apoptotic process	IDA Inferred from Direct Assay more info	PubMed
involved_in peptidyl-serine phosphorylation	IBA Inferred from Biological aspect of Ancestor more info
involved_in positive regulation of NF-kappaB transcription factor activity	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of Notch signaling pathway	TAS Traceable Author Statement more info
involved_in positive regulation of endothelial cell apoptotic process	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in positive regulation of glial cell proliferation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in positive regulation of glucose import	ISS Inferred from Sequence or Structural Similarity more info
involved_in positive regulation of neuron projection development	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of neuron projection development	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in positive regulation of protein localization to plasma membrane	ISS Inferred from Sequence or Structural Similarity more info
involved_in protein phosphorylation	IDA Inferred from Direct Assay more info	PubMed
involved_in protein targeting to membrane	NAS Non-traceable Author Statement more info	PubMed
involved_in regulation of postsynaptic membrane neurotransmitter receptor levels	IEA Inferred from Electronic Annotation more info
involved_in response to interleukin-1	IEA Inferred from Electronic Annotation more info
involved_in secretion	NAS Non-traceable Author Statement more info	PubMed
involved_in vesicle-mediated transport	TAS Traceable Author Statement more info	PubMed

Component	Evidence Code	Pubs
located_in Golgi membrane	IEA Inferred from Electronic Annotation more info
part_of PAR polarity complex	IPI Inferred from Physical Interaction more info	PubMed
part_of PAR polarity complex	ISS Inferred from Sequence or Structural Similarity more info
located_in Schaffer collateral - CA1 synapse	IEA Inferred from Electronic Annotation more info
located_in Schmidt-Lanterman incisure	IEA Inferred from Electronic Annotation more info
located_in apical plasma membrane	IEA Inferred from Electronic Annotation more info
located_in bicellular tight junction	IEA Inferred from Electronic Annotation more info
located_in brush border	IEA Inferred from Electronic Annotation more info
located_in cell leading edge	IEA Inferred from Electronic Annotation more info
located_in cytosol	IDA Inferred from Direct Assay more info	PubMed
located_in cytosol	TAS Traceable Author Statement more info
located_in endosome	IEA Inferred from Electronic Annotation more info
located_in extracellular exosome	HDA more info	PubMed
located_in glutamatergic synapse	IEA Inferred from Electronic Annotation more info
located_in intercellular bridge	IDA Inferred from Direct Assay more info
located_in microtubule cytoskeleton	IDA Inferred from Direct Assay more info
located_in nucleoplasm	TAS Traceable Author Statement more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	TAS Traceable Author Statement more info
located_in tight junction	NAS Non-traceable Author Statement more info	PubMed

General protein information

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Preferred Names: protein kinase C iota type

Names: PRKC-lambda/iota; aPKC-lambda/iota; atypical protein kinase C-lambda/iota

NP_002731.4

EC 2.7.11.13

XP_047304530.1

EC 2.7.11.13

XP_047304531.1

EC 2.7.11.13

XP_054203228.1

EC 2.7.11.13

XP_054203229.1

EC 2.7.11.13

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_002740.6 → NP_002731.4 protein kinase C iota type

See identical proteins and their annotated locations for NP_002731.4

Status: REVIEWED

Source sequence(s)

AC023891, AC073288, BC022016, CN412350, L33881

Consensus CDS

CCDS3212.2

UniProtKB/Swiss-Prot

D3DNQ4, P41743, Q8WW06

UniProtKB/TrEMBL

B5BUK7

Related

ENSP00000295797.4, ENST00000295797.5

Conserved Domains (3) summary

cd06404
Location:26 → 108

PB1_aPKC; PB1 domain is an essential modular domain of the atypical protein kinase C (aPKC) which in complex with Par6 and Par3 proteins is crucial for establishment of apical-basal polarity of animal cells. PB1 domain is a modular domain mediating specific ...

cd05618
Location:233 → 596

STKc_aPKC_iota; Catalytic domain of the Serine/Threonine Kinase, Atypical Protein Kinase C iota

pfam00130
Location:141 → 191

C1_1; Phorbol esters/diacylglycerol binding domain (C1 domain)

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2023_10

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

NC_000003.12 Reference GRCh38.p14 Primary Assembly

Range

170222424..170305977

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

XM_047448574.1 → XP_047304530.1 protein kinase C iota type isoform X1
XM_047448575.1 → XP_047304531.1 protein kinase C iota type isoform X2

UniProtKB/TrEMBL

B5BUK7

Alternate T2T-CHM13v2.0

Genomic

NC_060927.1 Alternate T2T-CHM13v2.0

Range

173007078..173090623

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

XM_054347253.1 → XP_054203228.1 protein kinase C iota type isoform X1
XM_054347254.1 → XP_054203229.1 protein kinase C iota type isoform X2

UniProtKB/TrEMBL

B5BUK7