1-46045945-T-C

Variant names:

• chr1-46045945-T-C
• rs200304610
• NM_003629.4:c.1160A>G

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_003629.4(PIK3R3):​c.1160A>G​(p.Lys387Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000133 in 1,613,712 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 Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000085 (0 hom., cov: 30)
  • Exomes 𝑓: 0.00014 (0 hom.)
• Consequence: PIK3R3 NM_003629.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.02
• Publications: 4 publications found

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]

P3R3URF-PIK3R3 (HGNC:54999): (P3R3URF-PIK3R3 readthrough) This locus represents naturally occurring readthrough transcription between the neighboring genes LOC110117498 and PIK3R3. The readthrough transcript encodes a fusion protein that shares sequence identity with each individual gene product. [provided by RefSeq, Apr 2017]

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.13669905).
• BS2: High AC in GnomAd4 at 13 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003629.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PIK3R3	NM_003629.4	MANE Select	c.1160A>G	p.Lys387Arg	missense	Exon 9 of 10	NP_003620.3
	P3R3URF-PIK3R3	NM_001303427.2		c.1298A>G	p.Lys433Arg	missense	Exon 9 of 10	NP_001290356.1	F6TDL0
	PIK3R3	NM_001303428.1		c.1211A>G	p.Lys404Arg	missense	Exon 10 of 11	NP_001290357.1	B4DXM8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PIK3R3	ENST00000262741.10	TSL:1 MANE Select	c.1160A>G	p.Lys387Arg	missense	Exon 9 of 10	ENSP00000262741.5	Q92569-1
	P3R3URF-PIK3R3	ENST00000540385.2	TSL:2	c.1298A>G	p.Lys433Arg	missense	Exon 9 of 10	ENSP00000439913.1	F6TDL0
	PIK3R3	ENST00000372006.5	TSL:1	c.1160A>G	p.Lys387Arg	missense	Exon 10 of 11	ENSP00000361075.1	Q92569-1

Frequencies

GnomAD3 genomes AF: 0.0000855 AC: 13 AN: 151974 Hom.: 0 Cov.: 30

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.000568

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000796 AC: 20 AN: 251286 AF XY: 0.0000663

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.000416

Gnomad NFE exome AF: 0.0000880

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.000138 AC: 202 AN: 1461620 Hom.: 0 Cov.: 30 AF XY: 0.000125 AC XY: 91 AN XY: 727130

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44712

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39674

South Asian (SAS) AF: 0.00 AC: 0 AN: 86230

European-Finnish (FIN) AF: 0.000412 AC: 22 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.000157 AC: 175 AN: 1111834

Other (OTH) AF: 0.0000828 AC: 5 AN: 60388

GnomAD4 genome AF: 0.0000855 AC: 13 AN: 152092 Hom.: 0 Cov.: 30 AF XY: 0.000108 AC XY: 8 AN XY: 74330

African (AFR) AF: 0.00 AC: 0 AN: 41500

American (AMR) AF: 0.00 AC: 0 AN: 15268

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5152

South Asian (SAS) AF: 0.00 AC: 0 AN: 4808

European-Finnish (FIN) AF: 0.000568 AC: 6 AN: 10558

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 292

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68020

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.000117 Hom.: 0

Bravo AF: 0.0000529

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000778 AC: 3

ExAC AF: 0.0000741 AC: 9

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.00013	T
BayesDel_noAF	Uncertain	-0.050
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.26	T
Eigen	Benign	-0.0038
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.032	D
MetaRNN	Benign	0.14	T
MetaSVM	Uncertain	-0.26	T
MutationAssessor	Benign	0.72	N
PhyloP100		8.0
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-0.23	N
REVEL	Benign	0.28
Sift	Benign	0.47	T
Sift4G	Benign	0.66	T
Polyphen		0.0020	B
Vest4		0.52
MVP		0.93
MPC		0.43
ClinPred		0.12	T
GERP RS		6.1
Varity_R		0.15
gMVP		0.52
Mutation Taster		=68/32	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs200304610; hg19: chr1-46511617;