rs2227262

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_006096.4(NDRG1):​c.756-5C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.147 in 1,613,166 control chromosomes in the GnomAD database, including 18,280 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.12 ( 1243 hom., cov: 33)
Exomes 𝑓: 0.15 ( 17037 hom. )

Consequence

NDRG1
NM_006096.4 splice_region, intron

Scores

2
Splicing: ADA: 0.00005743
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 1.84

Publications

14 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 8-133247931-G-A is Benign according to our data. Variant chr8-133247931-G-A is described in ClinVar as Benign. ClinVar VariationId is 138434.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.185 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NDRG1NM_006096.4 linkc.756-5C>T splice_region_variant, intron_variant Intron 11 of 15 ENST00000323851.13 NP_006087.2 Q92597-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NDRG1ENST00000323851.13 linkc.756-5C>T splice_region_variant, intron_variant Intron 11 of 15 1 NM_006096.4 ENSP00000319977.8 Q92597-1

Frequencies

GnomAD3 genomes
AF:
0.116
AC:
17582
AN:
152100
Hom.:
1243
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0309
Gnomad AMI
AF:
0.124
Gnomad AMR
AF:
0.112
Gnomad ASJ
AF:
0.160
Gnomad EAS
AF:
0.102
Gnomad SAS
AF:
0.196
Gnomad FIN
AF:
0.152
Gnomad MID
AF:
0.155
Gnomad NFE
AF:
0.155
Gnomad OTH
AF:
0.118
GnomAD2 exomes
AF:
0.139
AC:
35045
AN:
251486
AF XY:
0.146
show subpopulations
Gnomad AFR exome
AF:
0.0263
Gnomad AMR exome
AF:
0.107
Gnomad ASJ exome
AF:
0.174
Gnomad EAS exome
AF:
0.100
Gnomad FIN exome
AF:
0.151
Gnomad NFE exome
AF:
0.152
Gnomad OTH exome
AF:
0.141
GnomAD4 exome
AF:
0.150
AC:
218866
AN:
1460948
Hom.:
17037
Cov.:
32
AF XY:
0.152
AC XY:
110541
AN XY:
726792
show subpopulations
African (AFR)
AF:
0.0242
AC:
810
AN:
33468
American (AMR)
AF:
0.108
AC:
4840
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.171
AC:
4469
AN:
26128
East Asian (EAS)
AF:
0.132
AC:
5250
AN:
39696
South Asian (SAS)
AF:
0.188
AC:
16252
AN:
86232
European-Finnish (FIN)
AF:
0.147
AC:
7845
AN:
53408
Middle Eastern (MID)
AF:
0.189
AC:
1066
AN:
5640
European-Non Finnish (NFE)
AF:
0.153
AC:
169633
AN:
1111294
Other (OTH)
AF:
0.144
AC:
8701
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
9573
19145
28718
38290
47863
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
6000
12000
18000
24000
30000
<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:
0.115
AC:
17565
AN:
152218
Hom.:
1243
Cov.:
33
AF XY:
0.116
AC XY:
8642
AN XY:
74408
show subpopulations
African (AFR)
AF:
0.0308
AC:
1281
AN:
41554
American (AMR)
AF:
0.111
AC:
1705
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.160
AC:
554
AN:
3470
East Asian (EAS)
AF:
0.101
AC:
525
AN:
5178
South Asian (SAS)
AF:
0.195
AC:
941
AN:
4822
European-Finnish (FIN)
AF:
0.152
AC:
1612
AN:
10592
Middle Eastern (MID)
AF:
0.153
AC:
45
AN:
294
European-Non Finnish (NFE)
AF:
0.155
AC:
10543
AN:
67984
Other (OTH)
AF:
0.117
AC:
246
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
794
1588
2382
3176
3970
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
208
416
624
832
1040
<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:
0.142
Hom.:
2493
Bravo
AF:
0.106
Asia WGS
AF:
0.121
AC:
420
AN:
3478
EpiCase
AF:
0.156
EpiControl
AF:
0.151

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Jul 12, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 15, 2014
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Charcot-Marie-Tooth disease type 4D Benign:2
Jul 10, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Charcot-Marie-Tooth disease type 4 Benign:2
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 16, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
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

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
9.6
DANN
Benign
0.71
PhyloP100
1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000057
dbscSNV1_RF
Benign
0.0020
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: rs2227262; hg19: chr8-134260174; COSMIC: COSV60484259; COSMIC: COSV60484259; API