Variant rs577935445 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001077350.3(NPRL3):c.748C>T(p.Arg250Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000135 in 1,561,306 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

NPRL3
NM_001077350.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.88

Variant links:

Genes affected

NPRL3 (HGNC:14124): (NPR3 like, GATOR1 complex subunit) Contributes to GTPase activator activity. Involved in cellular response to amino acid starvation and negative regulation of TOR signaling. Located in lysosomal membrane. Part of GATOR1 complex. Implicated in focal epilepsy. [provided by Alliance of Genome Resources, Apr 2022]

NPRL3 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 19 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NPRL3	NM_001077350.3 linkuse as main transcript	c.748C>T	p.Arg250Trp	missense_variant	8/14	ENST00000611875.5	NP_001070818.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NPRL3	ENST00000611875.5 linkuse as main transcript	c.748C>T	p.Arg250Trp	missense_variant	8/14	5	NM_001077350.3	ENSP00000478273	P1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151850

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000332

AC:

AN:

210628

Hom.:

AF XY:

0.0000346

AC XY:

AN XY:

115766

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000403

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000497

Gnomad OTH exome

AF:

0.000207

GnomAD4 exome

AF:

0.0000135

AC:

AN:

1409456

Hom.:

Cov.:

AF XY:

0.0000157

AC XY:

AN XY:

700144

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000279

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000278

Gnomad4 SAS exome

AF:

0.0000251

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000120

Gnomad4 OTH exome

AF:

0.0000173

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151850

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74144

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:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000331

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Feb 04, 2020

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Epilepsy, familial focal, with variable foci 3

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 25, 2024

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 250 of the NPRL3 protein (p.Arg250Trp). This variant is present in population databases (rs577935445, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with NPRL3-related conditions. ClinVar contains an entry for this variant (Variation ID: 542794). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt NPRL3 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.47

T;.;T;.

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

0.99

D;D;.;D

M_CAP

Benign

0.034

MetaRNN

Uncertain

0.61

D;D;D;D

MetaSVM

Uncertain

-0.21

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.78

REVEL

Uncertain

0.34

Sift4G

Uncertain

0.0020

D;D;D;.

Polyphen

1.0

D;D;D;.

Vest4

0.62

MVP

0.39

MPC

0.64

ClinPred

0.86

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.14

gMVP

0.61

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