chrX-31147452-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_004006.3(DMD):​c.10620G>A​(p.Pro3540=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000375 in 1,093,107 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 17 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: not found (cov: 21)
Exomes 𝑓: 0.000038 ( 0 hom. 17 hem. )

Consequence

DMD
NM_004006.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -3.04
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 -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.47).
BP6
Variant X-31147452-C-T is Benign according to our data. Variant chrX-31147452-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 455854.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-31147452-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-3.05 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 17 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DMDNM_004006.3 linkuse as main transcriptc.10620G>A p.Pro3540= synonymous_variant 75/79 ENST00000357033.9 NP_003997.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DMDENST00000357033.9 linkuse as main transcriptc.10620G>A p.Pro3540= synonymous_variant 75/791 NM_004006.3 ENSP00000354923 P4

Frequencies

GnomAD3 genomes
Cov.:
21
GnomAD3 exomes
AF:
0.0000165
AC:
3
AN:
181503
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
66199
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000371
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000375
AC:
41
AN:
1093107
Hom.:
0
Cov.:
30
AF XY:
0.0000474
AC XY:
17
AN XY:
358645
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000371
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000442
Gnomad4 OTH exome
AF:
0.0000436
GnomAD4 genome
Cov.:
21
Bravo
AF:
0.00000378

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Duchenne muscular dystrophy Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 22, 2024- -
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsMar 23, 2021This 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.47
CADD
Benign
4.9
DANN
Benign
0.84

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: rs72466538; hg19: chrX-31165569; API