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GeneBe

1-46061926-T-TA

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP3BP6BS2

The NM_003629.4(PIK3R3):​c.764+2_764+3insT variant causes a splice region, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00378 in 1,612,306 control chromosomes in the GnomAD database, including 19 homozygotes. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0025 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0039 ( 19 hom. )

Consequence

PIK3R3
NM_003629.4 splice_region, intron

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:2

Conservation

PhyloP100: 8.67
Variant links:
Genes affected
PIK3R3 (HGNC:8981): (phosphoinositide-3-kinase regulatory subunit 3) Phosphatidylinositol 3-kinase (PI3K) phosphorylates phosphatidylinositol and similar compounds, which then serve as second messengers in growth signaling pathways. PI3K is composed of a catalytic and a regulatory subunit. The protein encoded by this gene represents a regulatory subunit of PI3K. The encoded protein contains two SH2 domains through which it binds activated protein tyrosine kinases to regulate their activity. [provided by RefSeq, Jun 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP3
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
BP6
Variant 1-46061926-T-TA is Benign according to our data. Variant chr1-46061926-T-TA is described in ClinVar as [Likely_benign]. Clinvar id is 1299992.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High AC in GnomAd4 at 386 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PIK3R3NM_003629.4 linkuse as main transcriptc.764+2_764+3insT splice_region_variant, intron_variant ENST00000262741.10
P3R3URF-PIK3R3NM_001303427.2 linkuse as main transcriptc.902+2_902+3insT splice_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PIK3R3ENST00000262741.10 linkuse as main transcriptc.764+2_764+3insT splice_region_variant, intron_variant 1 NM_003629.4 P1Q92569-1

Frequencies

GnomAD3 genomes
AF:
0.00253
AC:
385
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000844
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.00807
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000827
Gnomad FIN
AF:
0.00103
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00431
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00250
AC:
629
AN:
251118
Hom.:
2
AF XY:
0.00237
AC XY:
322
AN XY:
135676
show subpopulations
Gnomad AFR exome
AF:
0.000800
Gnomad AMR exome
AF:
0.000319
Gnomad ASJ exome
AF:
0.00804
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000295
Gnomad FIN exome
AF:
0.000970
Gnomad NFE exome
AF:
0.00422
Gnomad OTH exome
AF:
0.00245
GnomAD4 exome
AF:
0.00390
AC:
5701
AN:
1459972
Hom.:
19
Cov.:
30
AF XY:
0.00381
AC XY:
2765
AN XY:
726426
show subpopulations
Gnomad4 AFR exome
AF:
0.000538
Gnomad4 AMR exome
AF:
0.000269
Gnomad4 ASJ exome
AF:
0.00911
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000430
Gnomad4 FIN exome
AF:
0.000880
Gnomad4 NFE exome
AF:
0.00465
Gnomad4 OTH exome
AF:
0.00287
GnomAD4 genome
AF:
0.00253
AC:
386
AN:
152334
Hom.:
0
Cov.:
32
AF XY:
0.00228
AC XY:
170
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.000842
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00807
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.00103
Gnomad4 NFE
AF:
0.00431
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00371
Hom.:
1
Bravo
AF:
0.00241
EpiCase
AF:
0.00365
EpiControl
AF:
0.00350

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Likely benign, no assertion criteria providedclinical testingLaboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.30
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.25
Position offset: -28
DS_DL_spliceai
0.30
Position offset: 3

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs558232322; hg19: chr1-46527598; API