rs147904018

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_004006.3(DMD):​c.5203C>T​(p.Arg1735Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000103 in 1,208,735 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 33 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., 10 hem., cov: 22)
Exomes 𝑓: 0.000066 ( 0 hom. 23 hem. )

Consequence

DMD
NM_004006.3 missense

Scores

3
4
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: 6.50
Variant links:
Genes affected
DMD (HGNC:2928): (dystrophin) This gene spans a genomic range of greater than 2 Mb and encodes a large protein containing an N-terminal actin-binding domain and multiple spectrin repeats. The encoded protein forms a component of the dystrophin-glycoprotein complex (DGC), which bridges the inner cytoskeleton and the extracellular matrix. Deletions, duplications, and point mutations at this gene locus may cause Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), or cardiomyopathy. Alternative promoter usage and alternative splicing result in numerous distinct transcript variants and protein isoforms for this gene. [provided by RefSeq, Dec 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.23752004).
BP6
Variant X-32362910-G-A is Benign according to our data. Variant chrX-32362910-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 201749.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=2, Uncertain_significance=1}. Variant chrX-32362910-G-A is described in Lovd as [Benign]. Variant chrX-32362910-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000469 (52/110960) while in subpopulation AFR AF= 0.00167 (51/30481). AF 95% confidence interval is 0.00131. There are 0 homozygotes in gnomad4. There are 10 alleles in male gnomad4 subpopulation. Median coverage is 22. This position pass quality control queck.
BS2
High Hemizygotes in GnomAd4 at 10 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DMDNM_004006.3 linkuse as main transcriptc.5203C>T p.Arg1735Cys missense_variant 37/79 ENST00000357033.9 NP_003997.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DMDENST00000357033.9 linkuse as main transcriptc.5203C>T p.Arg1735Cys missense_variant 37/791 NM_004006.3 ENSP00000354923 P4

Frequencies

GnomAD3 genomes
AF:
0.000469
AC:
52
AN:
110960
Hom.:
0
Cov.:
22
AF XY:
0.000302
AC XY:
10
AN XY:
33158
show subpopulations
Gnomad AFR
AF:
0.00167
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000164
AC:
30
AN:
182972
Hom.:
0
AF XY:
0.000148
AC XY:
10
AN XY:
67536
show subpopulations
Gnomad AFR exome
AF:
0.00183
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000525
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000368
Gnomad OTH exome
AF:
0.000222
GnomAD4 exome
AF:
0.0000665
AC:
73
AN:
1097775
Hom.:
0
Cov.:
31
AF XY:
0.0000633
AC XY:
23
AN XY:
363177
show subpopulations
Gnomad4 AFR exome
AF:
0.00140
Gnomad4 AMR exome
AF:
0.0000284
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000739
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000273
Gnomad4 OTH exome
AF:
0.000152
GnomAD4 genome
AF:
0.000469
AC:
52
AN:
110960
Hom.:
0
Cov.:
22
AF XY:
0.000302
AC XY:
10
AN XY:
33158
show subpopulations
Gnomad4 AFR
AF:
0.00167
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000188
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000217
Hom.:
2
Bravo
AF:
0.000480
ESP6500AA
AF:
0.000522
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000157
AC:
19

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:7
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Duchenne muscular dystrophy;C0917713:Becker muscular dystrophy;C3668940:Dilated cardiomyopathy 3B Uncertain:1Benign:1
Benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsAug 04, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingCenter for Genomics, Ann and Robert H. Lurie Children's Hospital of ChicagoMar 30, 2021DMD NM_004006.2 exon 37 p.Arg1735Cys (c.5203C>T): This variant has not been reported in the literature and is present in 0.1% (36/18972) of African alleles in the Genome Aggregation Database, including 10 hemizygotes (http://gnomad.broadinstitute.org/variant/X-32381027-G-A). This variant is present in ClinVar (Variation ID:201749). Evolutionary conservation and computational predictive tools suggest that this variant may impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Sep 18, 2015- -
Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency Benign:1
Likely benign, no assertion criteria providedclinical testingNatera, Inc.Jun 21, 2019- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2023DMD: BP4, BS2 -
DMD-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 13, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsAug 29, 2019This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Duchenne muscular dystrophy Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 17, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.35
.;T;.;.
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.93
D;.;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Benign
0.24
T;T;T;T
MetaSVM
Benign
-0.59
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-3.6
.;D;.;D
REVEL
Benign
0.29
Sift
Pathogenic
0.0
.;D;.;D
Sift4G
Pathogenic
0.0010
D;D;D;D
Polyphen
0.99
.;D;.;.
Vest4
0.66
MVP
0.66
MPC
0.093
ClinPred
0.11
T
GERP RS
5.2
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs147904018; hg19: chrX-32381027; COSMIC: COSV63763998; COSMIC: COSV63763998; API