rs2233322

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_006096.4(NDRG1):​c.306C>T​(p.Gly102Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00221 in 1,613,614 control chromosomes in the GnomAD database, including 71 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. G102G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.012 ( 40 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 31 hom. )

Consequence

NDRG1
NM_006096.4 synonymous

Scores

3

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -3.90

Publications

3 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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 8-133262067-G-A is Benign according to our data. Variant chr8-133262067-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 362039.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-3.9 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0117 (1785/152306) while in subpopulation AFR AF = 0.0405 (1682/41568). AF 95% confidence interval is 0.0389. There are 40 homozygotes in GnomAd4. There are 862 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 40 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NDRG1NM_006096.4 linkc.306C>T p.Gly102Gly synonymous_variant Exon 5 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.306C>T p.Gly102Gly synonymous_variant Exon 5 of 16 1 NM_006096.4 ENSP00000319977.8 Q92597-1

Frequencies

GnomAD3 genomes
AF:
0.0117
AC:
1777
AN:
152188
Hom.:
40
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0404
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00537
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00669
GnomAD2 exomes
AF:
0.00307
AC:
771
AN:
250818
AF XY:
0.00215
show subpopulations
Gnomad AFR exome
AF:
0.0433
Gnomad AMR exome
AF:
0.00139
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000970
Gnomad OTH exome
AF:
0.000654
GnomAD4 exome
AF:
0.00122
AC:
1779
AN:
1461308
Hom.:
31
Cov.:
32
AF XY:
0.00104
AC XY:
753
AN XY:
726912
show subpopulations
African (AFR)
AF:
0.0420
AC:
1406
AN:
33450
American (AMR)
AF:
0.00197
AC:
88
AN:
44672
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26096
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.0000812
AC:
7
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53380
Middle Eastern (MID)
AF:
0.00278
AC:
16
AN:
5760
European-Non Finnish (NFE)
AF:
0.0000990
AC:
110
AN:
1111654
Other (OTH)
AF:
0.00252
AC:
152
AN:
60366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
91
182
274
365
456
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
48
96
144
192
240
<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:
0.0117
AC:
1785
AN:
152306
Hom.:
40
Cov.:
32
AF XY:
0.0116
AC XY:
862
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.0405
AC:
1682
AN:
41568
American (AMR)
AF:
0.00536
AC:
82
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68022
Other (OTH)
AF:
0.00662
AC:
14
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
88
175
263
350
438
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00651
Hom.:
6
Bravo
AF:
0.0132
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.000382
EpiControl
AF:
0.000178

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Mar 03, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

May 04, 2018
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Charcot-Marie-Tooth disease type 4D Benign:2
Oct 16, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Charcot-Marie-Tooth disease type 4 Benign:2
Sep 16, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_noAF
Benign
-0.65
CADD
Benign
1.9
DANN
Benign
0.91
PhyloP100
-3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=98/2
polymorphism (auto)

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: rs2233322; hg19: chr8-134274310; API