rs367925853

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006096.4(NDRG1):​c.1109C>T​(p.Ala370Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000514 in 1,576,934 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict 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. A370G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

NDRG1
NM_006096.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 3.62

Publications

0 publications found
Variant links:
Genes affected
NDRG1 (HGNC:7679): (N-myc downstream regulated 1) This gene is a member of the N-myc downregulated gene family which belongs to the alpha/beta hydrolase superfamily. The protein encoded by this gene is a cytoplasmic protein involved in stress responses, hormone responses, cell growth, and differentiation. The encoded protein is necessary for p53-mediated caspase activation and apoptosis. Mutations in this gene are a cause of Charcot-Marie-Tooth disease type 4D, and expression of this gene may be a prognostic indicator for several types of cancer. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, May 2012]
NDRG1 Gene-Disease associations (from GenCC):
  • Charcot-Marie-Tooth disease type 4D
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Illumina

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.03113091).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NDRG1NM_006096.4 linkc.1109C>T p.Ala370Val missense_variant Exon 16 of 16 ENST00000323851.13 NP_006087.2 Q92597-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NDRG1ENST00000323851.13 linkc.1109C>T p.Ala370Val missense_variant Exon 16 of 16 1 NM_006096.4 ENSP00000319977.8 Q92597-1

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152194
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000102
AC:
19
AN:
186416
AF XY:
0.0000899
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000369
Gnomad ASJ exome
AF:
0.00137
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000625
Gnomad OTH exome
AF:
0.000205
GnomAD4 exome
AF:
0.0000491
AC:
70
AN:
1424740
Hom.:
0
Cov.:
30
AF XY:
0.0000539
AC XY:
38
AN XY:
705022
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33046
American (AMR)
AF:
0.0000262
AC:
1
AN:
38210
Ashkenazi Jewish (ASJ)
AF:
0.00150
AC:
38
AN:
25380
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38222
South Asian (SAS)
AF:
0.0000123
AC:
1
AN:
81158
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49746
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5558
European-Non Finnish (NFE)
AF:
0.0000228
AC:
25
AN:
1094458
Other (OTH)
AF:
0.0000848
AC:
5
AN:
58962
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
6
12
19
25
31
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:
0.0000723
AC:
11
AN:
152194
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41454
American (AMR)
AF:
0.000131
AC:
2
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00144
AC:
5
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.530
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.000443
Hom.:
0
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000237
AC:
2
ExAC
AF:
0.000102
AC:
12

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease type 4D Uncertain:2
May 31, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 29, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Charcot-Marie-Tooth disease Uncertain:1
-
Molecular Genetics Laboratory, London Health Sciences Centre
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Uncertain:1
Sep 30, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.A370V variant (also known as c.1109C>T), located in coding exon 15 of the NDRG1 gene, results from a C to T substitution at nucleotide position 1109. The alanine at codon 370 is replaced by valine, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Feb 18, 2025
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Reported previously as a variant of uncertain significance in patients with suspected Charcot-Marie-Tooth disease; however, no segregation or further clinical information was provided (PMID: 32376792); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 32376792) -

Charcot-Marie-Tooth disease type 4 Uncertain:1
Aug 16, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 370 of the NDRG1 protein (p.Ala370Val). This variant is present in population databases (rs367925853, gnomAD 0.1%). This missense change has been observed in individual(s) with clinical features of Charcot-Marie-Tooth disease (PMID: 32376792). ClinVar contains an entry for this variant (Variation ID: 543428). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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
0.081
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.20
T;.;T;T;.;T
Eigen
Benign
-0.071
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
.;D;D;D;D;D
M_CAP
Benign
0.025
D
MetaRNN
Benign
0.031
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L;.;L;.;.;.
PhyloP100
3.6
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-1.1
N;N;N;N;N;N
REVEL
Benign
0.091
Sift
Uncertain
0.017
D;D;D;D;D;D
Sift4G
Uncertain
0.052
T;T;T;D;T;T
Polyphen
0.054
B;.;B;B;.;.
Vest4
0.056
MVP
0.55
MPC
0.31
ClinPred
0.072
T
GERP RS
5.5
Varity_R
0.11
gMVP
0.52
Mutation Taster
=74/26
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: rs367925853; hg19: chr8-134251197; API