16-85481-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001015052.3(MPG):​c.586C>T​(p.Arg196Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000558 in 1,613,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R196G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

MPG
NM_001015052.3 missense

Scores

2
5
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.58

Publications

14 publications found
Variant links:
Genes affected
MPG (HGNC:7211): (N-methylpurine DNA glycosylase) Predicted to enable alkylbase DNA N-glycosylase activity. Predicted to be involved in base-excision repair. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]
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: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3734588).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001015052.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MPG
NM_001015052.3
MANE Select
c.586C>Tp.Arg196Trp
missense
Exon 4 of 4NP_001015052.1P29372-4
NPRL3
NM_001077350.3
MANE Select
c.*1224G>A
3_prime_UTR
Exon 14 of 14NP_001070818.1Q12980
MPG
NM_002434.4
c.601C>Tp.Arg201Trp
missense
Exon 5 of 5NP_002425.2Q1W6H1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MPG
ENST00000356432.8
TSL:1 MANE Select
c.586C>Tp.Arg196Trp
missense
Exon 4 of 4ENSP00000348809.4P29372-4
NPRL3
ENST00000611875.5
TSL:5 MANE Select
c.*1224G>A
3_prime_UTR
Exon 14 of 14ENSP00000478273.1Q12980
MPG
ENST00000219431.4
TSL:3
c.601C>Tp.Arg201Trp
missense
Exon 5 of 5ENSP00000219431.4P29372-1

Frequencies

GnomAD3 genomes
AF:
0.0000722
AC:
11
AN:
152262
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000958
AC:
24
AN:
250490
AF XY:
0.000103
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.000696
Gnomad EAS exome
AF:
0.0000545
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000133
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000541
AC:
79
AN:
1460810
Hom.:
0
Cov.:
31
AF XY:
0.0000619
AC XY:
45
AN XY:
726736
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.0000224
AC:
1
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.000383
AC:
10
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.0000576
AC:
64
AN:
1111990
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000722
AC:
11
AN:
152262
Hom.:
0
Cov.:
34
AF XY:
0.0000807
AC XY:
6
AN XY:
74388
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41472
American (AMR)
AF:
0.000131
AC:
2
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68050
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
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

Genome 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
Alfa
AF:
0.000127
Hom.:
0
Bravo
AF:
0.0000831
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000824
AC:
10
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.079
T
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.68
D
LIST_S2
Uncertain
0.91
D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.37
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.2
M
PhyloP100
1.6
PrimateAI
Uncertain
0.50
T
PROVEAN
Pathogenic
-5.2
D
REVEL
Benign
0.17
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0020
D
Polyphen
0.66
P
Vest4
0.59
MVP
0.60
MPC
0.35
ClinPred
0.82
D
GERP RS
0.50
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.51
gMVP
0.63
Mutation Taster
=32/68
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: rs200919197; hg19: chr16-135480; COSMIC: COSV54737800; COSMIC: COSV54737800; API