3-50347839-C-T

Position:

chr3-50347839-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_006545.5(NPRL2):c.995G>A(p.Arg332Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000217 in 1,614,036 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R332W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

NPRL2
NM_006545.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.89

Variant links:

Genes affected

NPRL2 (HGNC:24969): (NPR2 like, GATOR1 complex subunit) Enables protein kinase activity. Contributes to GTPase activator activity. Involved in cellular response to amino acid starvation; negative regulation of TOR signaling; and negative regulation of kinase activity. Located in lysosomal membrane. Part of GATOR1 complex. Implicated in focal epilepsy. [provided by Alliance of Genome Resources, Apr 2022]

NPRL2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
NPRL2	NM_006545.5 linkuse as main transcript	c.995G>A	p.Arg332Gln	missense_variant	10/11	ENST00000232501.8
NPRL2	XM_047447310.1 linkuse as main transcript	c.1073G>A	p.Arg358Gln	missense_variant	10/11
NPRL2	XM_011533288.4 linkuse as main transcript	c.986G>A	p.Arg329Gln	missense_variant	9/10
NPRL2	XM_017005556.3 linkuse as main transcript	c.635G>A	p.Arg212Gln	missense_variant	8/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NPRL2	ENST00000232501.8 linkuse as main transcript	c.995G>A	p.Arg332Gln	missense_variant	10/11	1	NM_006545.5	P1	Q8WTW4-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

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:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251356

Hom.:

AF XY:

0.0000441

AC XY:

AN XY:

135906

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1461730

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

727146

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000927

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000144

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74472

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000227

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Epilepsy, familial focal, with variable foci 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Neuberg Centre For Genomic Medicine, NCGM

The missense c.995G>Ap.Arg332Gln variant in NPRL2 gene has not been reported previously as a pathogenic variant nor as a benign variant, to our knowledge. The variant is reported with an allele frequency of 0.003% in the gnomAD exomes database and is novel not in any individuals in 1000 Genomes database. This variant has not been reported to the ClinVar database. The amino acid change p.Arg332Gln in NPRL2 is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. The amino acid Arg at position 332 is changed to a Gln changing protein sequence and it might alter its composition and physico-chemical properties. For these reasons, this variant has been classified as Variant of Uncertain Significance VUS. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.29

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.031

Eigen

Benign

0.035

Eigen_PC

Benign

0.20

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.86

M_CAP

Benign

0.0060

MetaRNN

Benign

0.094

MetaSVM

Benign

-1.0

MutationTaster

Benign

0.99

PrimateAI

Benign

0.48

PROVEAN

Benign

-0.14

REVEL

Benign

0.26

Sift

Benign

0.29

Sift4G

Benign

0.39

Polyphen

0.31

Vest4

0.35

MutPred

0.42

Loss of MoRF binding (P = 0.0232);

MVP

0.49

MPC

0.68

ClinPred

0.62

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.059

gMVP

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.60

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.60

Position offset: -1

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