rs1453118437

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_001077350.3(NPRL3):​c.1589T>C​(p.Met530Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,130 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. M530I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

NPRL3
NM_001077350.3 missense

Scores

7
6
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.21

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • focal epilepsy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • epilepsy, familial focal, with variable foci 3
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • familial focal epilepsy with variable foci
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.871
BS2
High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NPRL3NM_001077350.3 linkc.1589T>C p.Met530Thr missense_variant Exon 14 of 14 ENST00000611875.5 NP_001070818.1 Q12980Q9BTE2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NPRL3ENST00000611875.5 linkc.1589T>C p.Met530Thr missense_variant Exon 14 of 14 5 NM_001077350.3 ENSP00000478273.1 Q12980

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD2 exomes
AF:
0.00000405
AC:
1
AN:
246806
AF XY:
0.00000744
show subpopulations
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:
0.00
Gnomad NFE exome
AF:
0.00000895
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461130
Hom.:
0
Cov.:
30
AF XY:
0.00000688
AC XY:
5
AN XY:
726794
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44670
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26110
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86114
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53228
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000108
AC:
12
AN:
1111734
Other (OTH)
AF:
0.00
AC:
0
AN:
60346
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
34

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Epilepsy, familial focal, with variable foci 3 Uncertain:1
Nov 20, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces methionine with threonine at codon 530 of the NPRL3 protein (p.Met530Thr). The methionine residue is moderately conserved and there is a moderate physicochemical difference between methionine and threonine. This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with an NPRL3-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.90
BayesDel_addAF
Pathogenic
0.48
D
BayesDel_noAF
Pathogenic
0.45
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.60
D;.;D
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.96
D;D;.
M_CAP
Benign
0.065
D
MetaRNN
Pathogenic
0.87
D;D;D
MetaSVM
Benign
-0.65
T
PhyloP100
9.2
PrimateAI
Pathogenic
0.82
D
REVEL
Pathogenic
0.71
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
0.93
P;.;P
Vest4
0.92
MutPred
0.67
Loss of stability (P = 0.0294);.;Loss of stability (P = 0.0294);
MVP
0.57
MPC
0.85
ClinPred
0.96
D
GERP RS
5.4
Varity_R
0.51
gMVP
0.89
Mutation Taster
=41/59
disease causing

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

Other links and lift over

dbSNP: rs1453118437; hg19: chr16-136825; API