rs370299128

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_001077350.3(NPRL3):​c.476G>A​(p.Arg159His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,609,900 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. R159C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

NPRL3
NM_001077350.3 missense

Scores

12
5
1

Clinical Significance

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

Conservation

PhyloP100: 7.65

Publications

2 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 -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.833
BS2
High AC in GnomAdExome4 at 38 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NPRL3NM_001077350.3 linkc.476G>A p.Arg159His missense_variant Exon 6 of 14 ENST00000611875.5 NP_001070818.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NPRL3ENST00000611875.5 linkc.476G>A p.Arg159His missense_variant Exon 6 of 14 5 NM_001077350.3 ENSP00000478273.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000124
AC:
3
AN:
241260
AF XY:
0.0000228
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:
0.0000275
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000261
AC:
38
AN:
1457700
Hom.:
0
Cov.:
31
AF XY:
0.0000359
AC XY:
26
AN XY:
724778
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33396
American (AMR)
AF:
0.00
AC:
0
AN:
44332
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26032
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39556
South Asian (SAS)
AF:
0.0000585
AC:
5
AN:
85528
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52642
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5760
European-Non Finnish (NFE)
AF:
0.0000270
AC:
30
AN:
1110260
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60194
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
3
6
8
11
14
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
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74350
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41444
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Aug 27, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.476G>A (p.R159H) alteration is located in exon 6 (coding exon 5) of the NPRL3 gene. This alteration results from a G to A substitution at nucleotide position 476, causing the arginine (R) at amino acid position 159 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Epilepsy, familial focal, with variable foci 3 Uncertain:1
Jul 11, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

ClinVar contains an entry for this variant (Variation ID: 576773). This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 159 of the NPRL3 protein (p.Arg159His). This variant is present in population databases (rs370299128, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with NPRL3-related conditions. 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
Pathogenic
0.79
BayesDel_addAF
Pathogenic
0.49
D
BayesDel_noAF
Pathogenic
0.47
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.58
D;.;D;.;.
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.99
D;D;.;D;D
M_CAP
Uncertain
0.099
D
MetaRNN
Pathogenic
0.83
D;D;D;D;D
MetaSVM
Uncertain
-0.11
T
PhyloP100
7.6
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-4.5
.;.;.;.;D
REVEL
Uncertain
0.60
Sift
Pathogenic
0.0
.;.;.;.;D
Sift4G
Pathogenic
0.0
D;D;D;.;.
Polyphen
1.0
D;D;D;.;.
Vest4
0.89
MVP
0.67
MPC
0.91
ClinPred
1.0
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.43
gMVP
0.67
Mutation Taster
=225/75
polymorphism

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: rs370299128; hg19: chr16-162692; API