X-32468564-G-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_004006.3(DMD):ā€‹c.3096C>Gā€‹(p.Leu1032=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000678 in 1,208,915 control chromosomes in the GnomAD database, including 1 homozygotes. There are 28 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). Synonymous variant affecting the same amino acid position (i.e. L1032L) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.000027 ( 0 hom., 1 hem., cov: 22)
Exomes š‘“: 0.000072 ( 1 hom. 27 hem. )

Consequence

DMD
NM_004006.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -1.29
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.93).
BP6
Variant X-32468564-G-C is Benign according to our data. Variant chrX-32468564-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 390154.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-1.29 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 27 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DMDNM_004006.3 linkuse as main transcriptc.3096C>G p.Leu1032= synonymous_variant 23/79 ENST00000357033.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DMDENST00000357033.9 linkuse as main transcriptc.3096C>G p.Leu1032= synonymous_variant 23/791 NM_004006.3 P4

Frequencies

GnomAD3 genomes
AF:
0.0000269
AC:
3
AN:
111523
Hom.:
0
Cov.:
22
AF XY:
0.0000297
AC XY:
1
AN XY:
33691
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000565
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000552
AC:
10
AN:
181160
Hom.:
1
AF XY:
0.0000757
AC XY:
5
AN XY:
66058
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000745
Gnomad OTH exome
AF:
0.000224
GnomAD4 exome
AF:
0.0000720
AC:
79
AN:
1097392
Hom.:
1
Cov.:
30
AF XY:
0.0000744
AC XY:
27
AN XY:
362934
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000285
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000247
Gnomad4 NFE exome
AF:
0.0000891
Gnomad4 OTH exome
AF:
0.0000434
GnomAD4 genome
AF:
0.0000269
AC:
3
AN:
111523
Hom.:
0
Cov.:
22
AF XY:
0.0000297
AC XY:
1
AN XY:
33691
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000565
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000642

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxNov 13, 2018- -
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jul 10, 2018- -
Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency Benign:1
Likely benign, no assertion criteria providedclinical testingNatera, Inc.Jul 02, 2019- -
Duchenne muscular dystrophy Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 06, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.93
CADD
Benign
0.030
DANN
Benign
0.40

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

LitVar

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

Other links and lift over

dbSNP: rs770148717; hg19: chrX-32486681; API