rs889238270

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PP3_ModerateBS2_Supporting

The NM_004006.3(DMD):​c.1586T>C​(p.Leu529Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,209,564 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.000027 ( 0 hom., 2 hem., cov: 23)
Exomes š‘“: 0.0000027 ( 0 hom. 1 hem. )

Consequence

DMD
NM_004006.3 missense

Scores

8
7
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 8.95
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 Uncertain_significance. Variant got 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.938
BS2
High Hemizygotes in GnomAd4 at 2 XL geneVariant has number of hemizygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DMDNM_004006.3 linkc.1586T>C p.Leu529Ser missense_variant Exon 13 of 79 ENST00000357033.9 NP_003997.2 P11532

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DMDENST00000357033.9 linkc.1586T>C p.Leu529Ser missense_variant Exon 13 of 79 1 NM_004006.3 ENSP00000354923.3 A0A075B6G3

Frequencies

GnomAD3 genomes
AF:
0.0000267
AC:
3
AN:
112238
Hom.:
0
Cov.:
23
AF XY:
0.0000581
AC XY:
2
AN XY:
34396
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000284
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182873
Hom.:
0
AF XY:
0.0000148
AC XY:
1
AN XY:
67363
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000273
AC:
3
AN:
1097326
Hom.:
0
Cov.:
29
AF XY:
0.00000276
AC XY:
1
AN XY:
362766
show subpopulations
Gnomad4 AFR exome
AF:
0.0000379
Gnomad4 AMR exome
AF:
0.0000568
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000267
AC:
3
AN:
112238
Hom.:
0
Cov.:
23
AF XY:
0.0000581
AC XY:
2
AN XY:
34396
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000284
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000416

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 14, 2019
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: DMD c.1586T>C (p.Leu529Ser) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 5.5e-06 in 182873 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.1586T>C in individuals affected with Duchenne muscular dystrophy and no experimental evidence demonstrating its impact on protein function have been reported. One clinical diagnostic laboratory has submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation and classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency Uncertain:1
Nov 08, 2018
Natera, Inc.
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Uncertain:1
Apr 01, 2019
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Has not been previously published as pathogenic or benign to our knowledge; Reported in ClinVar as a variant of uncertain significance (ClinVar Variant ID# 581693; Landrum et al., 2016); Missense variant in a gene in which most reported pathogenic variants are truncating/loss-of-function; In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect -

Cardiovascular phenotype Uncertain:1
Apr 07, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.L529S variant (also known as c.1586T>C), located in coding exon 13 of the DMD gene, results from a T to C substitution at nucleotide position 1586. The leucine at codon 529 is replaced by serine, an amino acid with dissimilar properties. Based on data from gnomAD, the C allele has an overall frequency of 0.0005% (1/182873) total alleles studied, with 1 hemizygote observed. The highest observed frequency was 0.0037% (1/27387) of Latino/ Admixed American alleles. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Duchenne muscular dystrophy Benign:1
May 04, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.32
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.44
.;T;.;.;T
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.91
D;.;D;D;T
M_CAP
Pathogenic
0.69
D
MetaRNN
Pathogenic
0.94
D;D;D;D;D
MetaSVM
Uncertain
-0.25
T
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-4.2
.;D;.;D;D
REVEL
Pathogenic
0.71
Sift
Pathogenic
0.0
.;D;.;D;D
Sift4G
Uncertain
0.014
D;D;D;D;D
Polyphen
1.0, 1.0
.;D;.;.;D
Vest4
0.92
MutPred
0.71
.;.;Gain of disorder (P = 0.0066);Gain of disorder (P = 0.0066);.;
MVP
0.97
MPC
0.12
ClinPred
0.97
D
GERP RS
5.6
gMVP
0.69

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: rs889238270; hg19: chrX-32613890; API