NM_181523.3:c.687G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_181523.3(PIK3R1):c.687G>A(p.Ser229Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00164 in 1,612,370 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0017 ( 4 hom. )

Consequence

PIK3R1
NM_181523.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.660

Publications

4 publications found

Variant links:

Genes affected

PIK3R1 (HGNC:8979): (phosphoinositide-3-kinase regulatory subunit 1) Phosphatidylinositol 3-kinase phosphorylates the inositol ring of phosphatidylinositol at the 3-prime position. The enzyme comprises a 110 kD catalytic subunit and a regulatory subunit of either 85, 55, or 50 kD. This gene encodes the 85 kD regulatory subunit. Phosphatidylinositol 3-kinase plays an important role in the metabolic actions of insulin, and a mutation in this gene has been associated with insulin resistance. Alternative splicing of this gene results in four transcript variants encoding different isoforms. [provided by RefSeq, Jun 2011]

PIK3R1 Gene-Disease associations (from GenCC):

immunodeficiency 36 with lymphoproliferation
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
SHORT syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
agammaglobulinemia 7, autosomal recessive
Inheritance: AR Classification: STRONG, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
activated PI3K-delta syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal agammaglobulinemia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

PIK3R1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.4).

BP6

Variant 5-68280580-G-A is Benign according to our data. Variant chr5-68280580-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 463167.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.66 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00139 (211/151574) while in subpopulation AMR AF = 0.00236 (36/15230). AF 95% confidence interval is 0.00176. There are 0 homozygotes in GnomAd4. There are 97 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 4 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PIK3R1	NM_181523.3 link	c.687G>A	p.Ser229Ser	synonymous_variant	Exon 6 of 16	ENST00000521381.6	NP_852664.1	P27986-1A0A2X0SFG1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PIK3R1	ENST00000521381.6 link	c.687G>A	p.Ser229Ser	synonymous_variant	Exon 6 of 16	1	NM_181523.3	ENSP00000428056.1		P27986-1

Frequencies

GnomAD3 genomes

AF:

0.00140

AC:

212

AN:

151458

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000146

Gnomad AMI

AF:

0.00771

Gnomad AMR

AF:

0.00237

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00209

Gnomad FIN

AF:

0.00259

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00172

Gnomad OTH

AF:

0.00240

GnomAD2 exomes

AF:

0.00171

AC:

429

AN:

251178

AF XY:

0.00180

show subpopulations

Gnomad AFR exome

AF:

0.000247

Gnomad AMR exome

AF:

0.00101

Gnomad ASJ exome

AF:

0.000596

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00231

Gnomad NFE exome

AF:

0.00228

Gnomad OTH exome

AF:

0.00114

GnomAD4 exome

AF:

0.00167

AC:

2437

AN:

1460796

Hom.:

Cov.:

AF XY:

0.00172

AC XY:

1252

AN XY:

726760

show subpopulations

African (AFR)

AF:

0.000239

AC:

AN:

33454

American (AMR)

AF:

0.00130

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.000804

AC:

AN:

26124

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39674

South Asian (SAS)

AF:

0.00198

AC:

171

AN:

86232

European-Finnish (FIN)

AF:

0.00249

AC:

133

AN:

53366

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00173

AC:

1927

AN:

1111100

Other (OTH)

AF:

0.00194

AC:

117

AN:

60362

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

122

244

365

487

609

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00139

AC:

211

AN:

151574

Hom.:

Cov.:

AF XY:

0.00131

AC XY:

AN XY:

73992

show subpopulations

African (AFR)

AF:

0.000145

AC:

AN:

41268

American (AMR)

AF:

0.00236

AC:

AN:

15230

Ashkenazi Jewish (ASJ)

AF:

0.00115

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.00188

AC:

AN:

4786

European-Finnish (FIN)

AF:

0.00259

AC:

AN:

10410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00172

AC:

117

AN:

67942

Other (OTH)

AF:

0.00237

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00137

Hom.:

Bravo

AF:

0.00157

EpiCase

AF:

0.00196

EpiControl

AF:

0.00196

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:5

Feb 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

PIK3R1: BP4, BP7 -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Apr 19, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

SHORT syndrome;C3554689:Agammaglobulinemia 7, autosomal recessive;C4014934:Immunodeficiency 36 with lymphoproliferation

Benign:1

Jan 21, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.40

CADD

Benign

5.3

(source)

DANN

Benign

0.73

PhyloP100

-0.66

PromoterAI

0.030

Neutral

(source)

Mutation Taster

=100/0

polymorphism

(source)

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

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NM_181523.3:c.687G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over