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PIK3R5 phosphoinositide-3-kinase regulatory subunit 5 [ Homo sapiens (human) ]

Gene ID: 23533, updated on 10-Dec-2024

Summary

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Official Symbol
PIK3R5provided by HGNC
Official Full Name
phosphoinositide-3-kinase regulatory subunit 5provided by HGNC
Primary source
HGNC:HGNC:30035
See related
Ensembl:ENSG00000141506 MIM:611317; AllianceGenome:HGNC:30035
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
p101; FOAP-2; P101-PI3K; F730038I15Rik
Summary
Phosphatidylinositol 3-kinases (PI3Ks) phosphorylate the inositol ring of phosphatidylinositol at the 3-prime position, and play important roles in cell growth, proliferation, differentiation, motility, survival and intracellular trafficking. The PI3Ks are divided into three classes: I, II and III, and only the class I PI3Ks are involved in oncogenesis. This gene encodes the 101 kD regulatory subunit of the class I PI3K gamma complex, which is a dimeric enzyme, consisting of a 110 kD catalytic subunit gamma and a regulatory subunit of either 55, 87 or 101 kD. This protein recruits the catalytic subunit from the cytosol to the plasma membrane through high-affinity interaction with G-beta-gamma proteins. Multiple alternatively spliced transcript variants encoding two distinct isoforms have been found. [provided by RefSeq, Oct 2011]
Expression
Biased expression in bone marrow (RPKM 25.8), spleen (RPKM 14.1) and 13 other tissues See more
Orthologs
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Genomic context

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See PIK3R5 in Genome Data Viewer
Location:
17p13.1
Exon count:
23
Annotation release Status Assembly Chr Location
RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 17 NC_000017.11 (8878916..8965707, complement)
RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 17 NC_060941.1 (8786072..8872872, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 17 NC_000017.10 (8782233..8869024, complement)

Chromosome 17 - NC_000017.11Genomic Context describing neighboring genes Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11702 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11703 Neighboring gene MPRA-validated peak2720 silencer Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:8730902-8731702 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:8731703-8732503 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11705 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8740143-8740949 Neighboring gene phosphoinositide-3-kinase regulatory subunit 6 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11706 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11707 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11708 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11709 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11710 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11711 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11712 Neighboring gene uncharacterized LOC107985071 Neighboring gene uncharacterized LOC124903919 Neighboring gene ReSE screen-validated silencer GRCh37_chr17:8788211-8788374 Neighboring gene uncharacterized LOC124903922 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8791248-8792056 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8792057-8792865 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11713 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11714 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11715 Neighboring gene uncharacterized LOC124903920 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11716 Neighboring gene uncharacterized LOC124903921 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8188 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8189 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8190 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11717 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11718 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8857999-8858500 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8858501-8859000 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8191 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8192 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11719 Neighboring gene PIK3R5 divergent transcript Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11720 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11721 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8193 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8194 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:8907139-8907768 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 11722 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8195 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8924225-8924768 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8936035-8936534 Neighboring gene H3K27ac-H3K4me1 hESC enhancers GRCh37_chr17:8954033-8954690 and GRCh37_chr17:8954691-8955350 Neighboring gene netrin 1 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:8955351-8956008 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:8956741-8957362 Neighboring gene OCT4-NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:8957363-8957982 Neighboring gene OCT4-NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:8957983-8958603 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8990973-8991474 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:8991475-8991974 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:9041579-9042287 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:9054043-9054886 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:9058975-9059476 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:9059477-9059976 Neighboring gene uncharacterized LOC101928266

Genomic regions, transcripts, and products

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Go to nucleotide: Graphics FASTA GenBank

Expression

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  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

Bibliography

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Related articles in PubMed

  1. Overexpression of p101 activates PI3Kgamma signaling in T cells and contributes to cell survival. Johnson C, et al. Oncogene, 2007 Oct 25. PMID 17486067
  2. PIK3R5 genetic predictors of hypertension induced by VEGF-pathway inhibitors. Quintanilha JCF, et al. Pharmacogenomics J, 2022 Feb. PMID 34775477, Free PMC Article
  3. Phosphatidylinositol 3-kinase: the oncoprotein. Vogt PK, et al. Curr Top Microbiol Immunol, 2010. PMID 20582532, Free PMC Article
  4. A missense mutation in PIK3R5 gene in a family with ataxia and oculomotor apraxia. Al Tassan N, et al. Hum Mutat, 2012 Feb. PMID 22065524
  5. Targetable leukaemia dependency on noncanonical PI3Kγ signalling. Luo Q, et al. Nature, 2024 Jun. PMID 38720074

See all (32) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. Targetable leukaemia dependency on noncanonical PI3Kgamma signalling.
    Title: Targetable leukaemia dependency on noncanonical PI3Kγ signalling.
  2. PIK3R5 genetic predictors of hypertension induced by VEGF-pathway inhibitors.
    Title: PIK3R5 genetic predictors of hypertension induced by VEGF-pathway inhibitors.
  3. HCP5, as the sponge of miR-1291, facilitates AML cell proliferation and restrains apoptosis via increasing PIK3R5 expression.
    Title: HCP5, as the sponge of miR-1291, facilitates AML cell proliferation and restrains apoptosis via increasing PIK3R5 expression.
  4. G protein betagamma translocation to the Golgi apparatus activates MAPK via p110gamma-p101 heterodimers.
    Title: G protein βγ translocation to the Golgi apparatus activates MAPK via p110γ-p101 heterodimers.
  5. data argue for differential regulatory functions of the non-catalytic subunits and a specific Gbetagamma-dependent regulation of p101 in PI3Kgamma activation.
    Title: Different inhibition of Gβγ-stimulated class IB phosphoinositide 3-kinase (PI3K) variants by a monoclonal antibody. Specific function of p101 as a Gβγ-dependent regulator of PI3Kγ enzymatic activity.
  6. PIK3R5 promoter hypermethylation is associated with oral squamous cell carcinoma.
    Title: Screening of differential promoter hypermethylated genes in primary oral squamous cell carcinoma.
  7. expression and activities of PI3Kgamma are modified differently by p87 and p101 in vitro and in living cells, arguing for specific regulatory roles of the non-catalytic subunits in the differentiation of PI3Kgamma signaling pathways.
    Title: p87 and p101 subunits are distinct regulators determining class IB phosphoinositide 3-kinase (PI3K) specificity.
  8. Our characterization of the PIK3R5 protein and findings suggest that it may play a role in the development of the cerebellum and vermis.
    Title: A missense mutation in PIK3R5 gene in a family with ataxia and oculomotor apraxia.
  9. Clinical trial of gene-disease association and gene-environment interaction. (HuGE Navigator)
    Title: Personalized smoking cessation: interactions between nicotine dose, dependence and quit-success genotype score.
  10. Observational study of gene-disease association, gene-environment interaction, and pharmacogenomic / toxicogenomic. (HuGE Navigator)
    Title: Polymorphisms in innate immunity genes and patients response to dendritic cell-based HIV immuno-treatment.
Submit: New GeneRIF Correction See all GeneRIFs (14)

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
Ataxia with oculomotor apraxia type 3
MedGen: C3554690 OMIM: 615217 GeneReviews: Not available
Compare labs

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Pathways from PubChem

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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

Homology

Clone Names

  • FLJ26116

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables 1-phosphatidylinositol-3-kinase regulator activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables G-protein beta/gamma-subunit complex binding ISS
Inferred from Sequence or Structural Similarity
more info
  
Process Evidence Code Pubs
involved_in G protein-coupled receptor signaling pathway EXP
Inferred from Experiment
more info
 PubMed 
involved_in G protein-coupled receptor signaling pathway IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in G protein-coupled receptor signaling pathway ISS
Inferred from Sequence or Structural Similarity
more info
  
involved_in immune response NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in phosphatidylinositol 3-kinase/protein kinase B signal transduction ISS
Inferred from Sequence or Structural Similarity
more info
  
involved_in phosphatidylinositol metabolic process IEA
Inferred from Electronic Annotation
more info
  
involved_in positive regulation of MAP kinase activity ISS
Inferred from Sequence or Structural Similarity
more info
  
involved_in positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction ISS
Inferred from Sequence or Structural Similarity
more info
  
Component Evidence Code Pubs
located_in centriolar satellite IDA
Inferred from Direct Assay
more info
  
located_in cytoplasm ISS
Inferred from Sequence or Structural Similarity
more info
  
located_in cytosol IDA
Inferred from Direct Assay
more info
  
located_in cytosol TAS
Traceable Author Statement
more info
  
located_in membrane ISS
Inferred from Sequence or Structural Similarity
more info
  
located_in nucleus IEA
Inferred from Electronic Annotation
more info
  
part_of phosphatidylinositol 3-kinase complex IBA
Inferred from Biological aspect of Ancestor
more info
  
part_of phosphatidylinositol 3-kinase complex, class IA EXP
Inferred from Experiment
more info
 PubMed 
part_of phosphatidylinositol 3-kinase complex, class IB ISS
Inferred from Sequence or Structural Similarity
more info
  
located_in plasma membrane IEA
Inferred from Electronic Annotation
more info
  

General protein information

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Preferred Names
phosphoinositide 3-kinase regulatory subunit 5
Names
PI3-kinase p101 subunit
phosphatidylinositol 4,5-bisphosphate 3-kinase regulatory subunit
protein FOAP-2
ptdIns-3-kinase p101

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.

Genomic

  1. NG_030374.1 RefSeqGene

    Range
    5006..91797
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001142633.3 → NP_001136105.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 1

    See identical proteins and their annotated locations for NP_001136105.1

    Status: REVIEWED

    Source sequence(s)
    AB028925, AK309074, AY725854, BC028212
    Consensus CDS
    CCDS11147.1
    UniProtKB/Swiss-Prot
    B0LPH4, D3DTS3, Q5G936, Q5G938, Q5G939, Q8IZ23, Q8WYR1, Q9Y2Y2
    UniProtKB/TrEMBL
    L7RT34
    Related
    ENSP00000392812.1, ENST00000447110.6
    Conserved Domains (1) summary
    pfam10486
    Location:6 → 880
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  2. NM_001251851.2 → NP_001238780.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 2

    See identical proteins and their annotated locations for NP_001238780.1

    Status: REVIEWED

    Source sequence(s)
    AF128881, AK309074, AY725851, BC028212
    Consensus CDS
    CCDS73986.1
    UniProtKB/Swiss-Prot
    Q8WYR1
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 494
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  3. NM_001251852.2 → NP_001238781.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 2

    See identical proteins and their annotated locations for NP_001238781.1

    Status: REVIEWED

    Source sequence(s)
    AF128881, AK309074, BC028212
    Consensus CDS
    CCDS73986.1
    UniProtKB/Swiss-Prot
    Q8WYR1
    Related
    ENSP00000484211.1, ENST00000616147.4
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 494
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  4. NM_001251853.2 → NP_001238782.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 2

    See identical proteins and their annotated locations for NP_001238782.1

    Status: REVIEWED

    Source sequence(s)
    AB028925, AF128881, AK309074, AY725852, BC028212
    Consensus CDS
    CCDS73986.1
    UniProtKB/Swiss-Prot
    Q8WYR1
    Related
    ENSP00000477795.1, ENST00000611902.4
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 494
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  5. NM_001251855.2 → NP_001238784.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 2

    See identical proteins and their annotated locations for NP_001238784.1

    Status: REVIEWED

    Source sequence(s)
    AF128881, AK309074, BC028212
    Consensus CDS
    CCDS73986.1
    UniProtKB/Swiss-Prot
    Q8WYR1
    Related
    ENSP00000485280.1, ENST00000623421.3
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 494
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  6. NM_001388396.1 → NP_001375325.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 4

    Status: REVIEWED

    Source sequence(s)
    AC002091, AC003695
    Consensus CDS
    CCDS92257.1
    UniProtKB/TrEMBL
    J3KSW1
    Related
    ENSP00000462680.1, ENST00000584803.1
    Conserved Domains (1) summary
    pfam10486
    Location:6 → 879
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  7. NM_001388397.1 → NP_001375326.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 2

    Status: REVIEWED

    Source sequence(s)
    AC002091, AC003695
    Consensus CDS
    CCDS73986.1
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 494
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  8. NM_001388398.1 → NP_001375327.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 2

    Status: REVIEWED

    Source sequence(s)
    AC002091, AC003695
    Consensus CDS
    CCDS73986.1
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 494
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  9. NM_001388399.1 → NP_001375328.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 2

    Status: REVIEWED

    Source sequence(s)
    AC002091, AC003695
    Consensus CDS
    CCDS73986.1
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 494
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  10. NM_001388400.1 → NP_001375329.1  phosphoinositide 3-kinase regulatory subunit 5 isoform 3

    Status: REVIEWED

    Source sequence(s)
    AC002091, AC003695
    Conserved Domains (1) summary
    pfam10486
    Location:1 → 493
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

  11. NM_014308.4 → NP_055123.2  phosphoinositide 3-kinase regulatory subunit 5 isoform 1

    See identical proteins and their annotated locations for NP_055123.2

    Status: REVIEWED

    Source sequence(s)
    AF128881, BC028212
    Consensus CDS
    CCDS11147.1
    UniProtKB/Swiss-Prot
    B0LPH4, D3DTS3, Q5G936, Q5G938, Q5G939, Q8IZ23, Q8WYR1, Q9Y2Y2
    UniProtKB/TrEMBL
    L7RT34
    Related
    ENSP00000462433.1, ENST00000581552.5
    Conserved Domains (1) summary
    pfam10486
    Location:6 → 880
    PI3K_1B_p101; Phosphoinositide 3-kinase gamma adapter protein p101 subunit

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

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

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000017.11 Reference GRCh38.p14 Primary Assembly

    Range
    8878916..8965707 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_047435709.1 → XP_047291665.1  phosphoinositide 3-kinase regulatory subunit 5 isoform X1

    UniProtKB/Swiss-Prot
    B0LPH4, D3DTS3, Q5G936, Q5G938, Q5G939, Q8IZ23, Q8WYR1, Q9Y2Y2
    UniProtKB/TrEMBL
    L7RT34

  2. XM_047435711.1 → XP_047291667.1  phosphoinositide 3-kinase regulatory subunit 5 isoform X3

  3. XM_047435710.1 → XP_047291666.1  phosphoinositide 3-kinase regulatory subunit 5 isoform X2

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060941.1 Alternate T2T-CHM13v2.0

    Range
    8786072..8872872 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054315631.1 → XP_054171606.1  phosphoinositide 3-kinase regulatory subunit 5 isoform X1

    UniProtKB/Swiss-Prot
    B0LPH4, D3DTS3, Q5G936, Q5G938, Q5G939, Q8IZ23, Q8WYR1, Q9Y2Y2
    UniProtKB/TrEMBL
    L7RT34

  2. XM_054315633.1 → XP_054171608.1  phosphoinositide 3-kinase regulatory subunit 5 isoform X3

  3. XM_054315632.1 → XP_054171607.1  phosphoinositide 3-kinase regulatory subunit 5 isoform X2

Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q8WYR1.1 GenPept UniProtKB/Swiss-Prot:Q8WYR1

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