PI4K2A phosphatidylinositol 4-kinase type 2 alpha [Homo sapiens (human)] - Gene

Summary

Official Symbol: PI4K2Aprovided by HGNC
Official Full Name: phosphatidylinositol 4-kinase type 2 alphaprovided by HGNC
Primary source: HGNC:HGNC:30031
See related: Ensembl:ENSG00000155252 MIM:609763; AllianceGenome:HGNC:30031
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: NEDMSB; PI4KII; PIK42A
Summary: Phosphatidylinositolpolyphosphates (PtdInsPs) are centrally involved in many biologic processes, ranging from cell growth and organization of the actin cytoskeleton to endo- and exocytosis. PI4KII phosphorylates PtdIns at the D-4 position, an essential step in the biosynthesis of PtdInsPs (Barylko et al., 2001 [PubMed 11244087]).[supplied by OMIM, Mar 2008]
Expression: Ubiquitous expression in placenta (RPKM 11.9), gall bladder (RPKM 10.1) and 25 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 10q24.2

Exon count:: 9

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	10	NC_000010.11 (97640671..97676434)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	10	NC_060934.1 (98520873..98556635)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	10	NC_000010.10 (99400428..99436191)

Chromosome 10 - NC_000010.11 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

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Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

High expression of PI4K2A predicted poor prognosis of colon adenocarcinoma (COAD) and correlated with immunity.
Title: High expression of PI4K2A predicted poor prognosis of colon adenocarcinoma (COAD) and correlated with immunity.
PI4K2A deficiency causes innate error in intracellular trafficking with developmental and epileptic-dyskinetic encephalopathy.
Title: PI4K2A deficiency causes innate error in intracellular trafficking with developmental and epileptic-dyskinetic encephalopathy.
Therapeutic targeting of the PI4K2A/PKR lysosome network is critical for misfolded protein clearance and survival in cancer cells.
Title: Therapeutic targeting of the PI4K2A/PKR lysosome network is critical for misfolded protein clearance and survival in cancer cells.
both integrin alpha3beta1 and PI4KIIalpha co-localized to the trans-Golgi network, where they physically interacted with each other, and PI4KIIalpha specifically associated with integrin alpha3 but not alpha5
Title: A complex between phosphatidylinositol 4-kinase IIα and integrin α3β1 is required for N-glycan sialylation in cancer cells.
These results indicate that GABARAP and PI4K2A interact tightly. Although lipidation of GABARAP is essential for its role in autophagy, here we show that its lipidation is not required for the interaction of GABARAP and PI4K2A.
Title: Comobility of GABARAP and Phosphatidylinositol 4-Kinase 2A on Cytoplasmic Vesicles.
PI-273 is the first substrate-competitive, subtype-specific inhibitor of PI4KIIalpha, the use of which will facilitate evaluations of PI4KIIalpha as a cancer therapeutic target.
Title: PI-273, a Substrate-Competitive, Specific Small-Molecule Inhibitor of PI4KIIα, Inhibits the Growth of Breast Cancer Cells.
Mining oncogenomic databases revealed that loss of the PI4K2B allele and underexpression of PI4KIIbeta mRNA are associated with human cancers. This finding supports the cell data and suggests that PI4KIIbeta may be a clinically significant suppressor of invasion.
Title: Phosphatidylinositol 4-kinase IIβ negatively regulates invadopodia formation and suppresses an invasive cellular phenotype.
RNA interference of the type II phosphatidylinositol 4-kinases PI4KIIa and PI4KIIa in primary human endothelial cells leads to formation of an increased proportion of short WPB with perturbed packing of VWF, as exemplified by increased exposure of antibody-binding sites.
Title: Type II PI4-kinases control Weibel-Palade body biogenesis and von Willebrand factor structure in human endothelial cells.
PtdIns4KIIalpha regulates receptor sorting at early endosomes through a PtdIns(4)P-dependent pathway and contributes substrate for the synthesis of endosomal PtdIns(4,5)P2.
Title: PtdIns4KIIα generates endosomal PtdIns(4)P and is required for receptor sorting at early endosomes.
Here two crystal structures are presented: the structure of human PIK42A and the structure of PIK42B containing a nucleoside analogue.
Title: The high-resolution crystal structure of phosphatidylinositol 4-kinase IIβ and the crystal structure of phosphatidylinositol 4-kinase IIα containing a nucleoside analogue provide a structural basis for isoform-specific inhibitor design.

Submit: New GeneRIF Correction See all GeneRIFs (29)

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

Associated conditions

Description	Tests
Neurodevelopmental disorder with hyperkinetic movements, seizures, and structural brain abnormalities MedGen: C5935585 OMIM: 620732 GeneReviews: Not available	not available

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
Pr55(Gag)	gag	Rab27a is required for plasma membrane delivery of PI4K2A and HIV-1 Gag assembly in Jurkat cells	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

RH11292 (e-PCR)
- UniSTS:74503

RH68006 (e-PCR)
- UniSTS:57155

D10S1386E (e-PCR)
- UniSTS:151383

RH66059 (e-PCR)
- UniSTS:37477

SHGC-141980 (e-PCR)
- UniSTS:171171

RH91726 (e-PCR)
- UniSTS:87246

PI4KII__6989 (e-PCR)
- UniSTS:466392

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables 1-phosphatidylinositol 4-kinase activity	IBA Inferred from Biological aspect of Ancestor more info
enables 1-phosphatidylinositol 4-kinase activity	IDA Inferred from Direct Assay more info	PubMed
enables 1-phosphatidylinositol 4-kinase activity	TAS Traceable Author Statement more info
enables AP-3 adaptor complex binding	IDA Inferred from Direct Assay more info	PubMed
enables ATP binding	IDA Inferred from Direct Assay more info	PubMed
enables magnesium ion binding	NAS Non-traceable Author Statement more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in Golgi organization	IBA Inferred from Biological aspect of Ancestor more info
involved_in endosome organization	IBA Inferred from Biological aspect of Ancestor more info
involved_in phosphatidylinositol biosynthetic process	IDA Inferred from Direct Assay more info	PubMed
involved_in phosphatidylinositol biosynthetic process	TAS Traceable Author Statement more info
involved_in phosphatidylinositol phosphate biosynthetic process	IBA Inferred from Biological aspect of Ancestor more info
involved_in phosphatidylinositol phosphate biosynthetic process	IDA Inferred from Direct Assay more info	PubMed

Component	Evidence Code	Pubs
part_of BLOC-1 complex	IDA Inferred from Direct Assay more info	PubMed
located_in Golgi membrane	IDA Inferred from Direct Assay more info	PubMed
located_in cytoplasmic vesicle	ISS Inferred from Sequence or Structural Similarity more info
located_in cytosol	TAS Traceable Author Statement more info
located_in dendrite	ISS Inferred from Sequence or Structural Similarity more info
located_in early endosome membrane	IDA Inferred from Direct Assay more info	PubMed
is_active_in endosome	IBA Inferred from Biological aspect of Ancestor more info
located_in endosome	ISS Inferred from Sequence or Structural Similarity more info
located_in endosome membrane	IDA Inferred from Direct Assay more info	PubMed
located_in glutamatergic synapse	IEA Inferred from Electronic Annotation more info
located_in growing cell tip	ISS Inferred from Sequence or Structural Similarity more info
located_in lysosomal membrane	HDA more info	PubMed
located_in membrane	HDA more info	PubMed
located_in membrane	IDA Inferred from Direct Assay more info	PubMed
located_in membrane raft	IDA Inferred from Direct Assay more info	PubMed
located_in mitochondrion	ISS Inferred from Sequence or Structural Similarity more info
located_in neuron projection	ISS Inferred from Sequence or Structural Similarity more info
located_in neuronal cell body	ISS Inferred from Sequence or Structural Similarity more info
located_in perikaryon	IEA Inferred from Electronic Annotation more info
is_active_in plasma membrane	IBA Inferred from Biological aspect of Ancestor more info
located_in plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in presynaptic active zone	IEA Inferred from Electronic Annotation more info
located_in presynaptic membrane	ISS Inferred from Sequence or Structural Similarity more info
is_active_in trans-Golgi network	IBA Inferred from Biological aspect of Ancestor more info

General protein information

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Preferred Names: phosphatidylinositol 4-kinase type 2-alpha

Names: phosphatidylinositol 4-kinase type II (PI4KII); phosphatidylinositol 4-kinase type II-alpha

NP_060895.1

EC 2.7.1.67

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.