Variant 19-18155927-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_005027.4(PIK3R2):c.48C>T(p.Arg16=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000212 in 1,415,486 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PIK3R2
NM_005027.4 synonymous

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.378

Variant links:

Genes affected

PIK3R2 (HGNC:8980): (phosphoinositide-3-kinase regulatory subunit 2) Phosphatidylinositol 3-kinase (PI3K) is a lipid kinase that phosphorylates phosphatidylinositol and similar compounds, creating second messengers important in growth signaling pathways. PI3K functions as a heterodimer of a regulatory and a catalytic subunit. The protein encoded by this gene is a regulatory component of PI3K. Three transcript variants, one protein coding and the other two non-protein coding, have been found for this gene. [provided by RefSeq, Apr 2019]

PIK3R2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.27).

BP6

Variant 19-18155927-C-T is Benign according to our data. Variant chr19-18155927-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3350766.Status of the report is no_assertion_criteria_provided, 0 stars.

BP7

Synonymous conserved (PhyloP=0.378 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
PIK3R2	NM_005027.4 linkuse as main transcript	c.48C>T	p.Arg16=	synonymous_variant	2/16	ENST00000222254.13	NP_005018.2
PIK3R2	NR_073517.2 linkuse as main transcript	n.603C>T		non_coding_transcript_exon_variant	2/16
PIK3R2	NR_162071.1 linkuse as main transcript	n.603C>T		non_coding_transcript_exon_variant	2/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
PIK3R2	ENST00000222254.13 linkuse as main transcript	c.48C>T	p.Arg16=	synonymous_variant	2/16	1	NM_005027.4	ENSP00000222254	P1
PIK3R2	ENST00000617130.5 linkuse as main transcript	c.48C>T	p.Arg16=	synonymous_variant, NMD_transcript_variant	2/15	1		ENSP00000477864
PIK3R2	ENST00000426902.5 linkuse as main transcript	c.48C>T	p.Arg16=	synonymous_variant, NMD_transcript_variant	1/15	2		ENSP00000395636
PIK3R2	ENST00000617642.2 linkuse as main transcript	c.48C>T	p.Arg16=	synonymous_variant, NMD_transcript_variant	2/14	5		ENSP00000484714

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000212

AC:

AN:

1415486

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

700194

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000521

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.19e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

PIK3R2-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 06, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.27

CADD

Benign

DANN

Benign

0.93

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over