rs765471098

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_001927.4(DES):​c.466G>A​(p.Glu156Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000213 in 1,408,896 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E156Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

DES
NM_001927.4 missense

Scores

5
13
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 5.61

Publications

0 publications found
Variant links:
Genes affected
DES (HGNC:2770): (desmin) This gene encodes a muscle-specific class III intermediate filament. Homopolymers of this protein form a stable intracytoplasmic filamentous network connecting myofibrils to each other and to the plasma membrane. Mutations in this gene are associated with desmin-related myopathy, a familial cardiac and skeletal myopathy (CSM), and with distal myopathies. [provided by RefSeq, Jul 2008]
DES Gene-Disease associations (from GenCC):
  • dilated cardiomyopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • dilated cardiomyopathy 1I
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
  • myofibrillar myopathy 1
    Inheritance: AD, AR, SD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
  • atrioventricular block
    Inheritance: AD, AR Classification: STRONG Submitted by: Genomics England PanelApp
  • arrhythmogenic right ventricular cardiomyopathy
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • neurogenic scapuloperoneal syndrome, Kaeser type
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 32 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 1.7729 (below the threshold of 3.09). Trascript score misZ: 0.36303 (below the threshold of 3.09). GenCC associations: The gene is linked to myofibrillar myopathy 1, dilated cardiomyopathy 1I, atrioventricular block, arrhythmogenic right ventricular cardiomyopathy, dilated cardiomyopathy, familial isolated dilated cardiomyopathy, neurogenic scapuloperoneal syndrome, Kaeser type.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.866

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DESNM_001927.4 linkc.466G>A p.Glu156Lys missense_variant Exon 1 of 9 ENST00000373960.4 NP_001918.3 P17661Q53SB5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DESENST00000373960.4 linkc.466G>A p.Glu156Lys missense_variant Exon 1 of 9 1 NM_001927.4 ENSP00000363071.3 P17661

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
165092
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000213
AC:
3
AN:
1408896
Hom.:
0
Cov.:
91
AF XY:
0.00000144
AC XY:
1
AN XY:
695784
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32194
American (AMR)
AF:
0.00
AC:
0
AN:
36814
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25280
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36874
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80154
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49072
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5622
European-Non Finnish (NFE)
AF:
9.22e-7
AC:
1
AN:
1084476
Other (OTH)
AF:
0.0000342
AC:
2
AN:
58410
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000866
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Dec 04, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 26807690) -

Mar 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

DES: PM2, PP3 -

not specified Uncertain:1
May 16, 2016
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Desmin-related myofibrillar myopathy Uncertain:1
Jan 26, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 156 of the DES protein (p.Glu156Lys). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with DES-related conditions. ClinVar contains an entry for this variant (Variation ID: 434937). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on DES protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Desmin-related myofibrillar myopathy;C1858154:Dilated cardiomyopathy 1I;C1867005:Neurogenic scapuloperoneal syndrome, Kaeser type Uncertain:1
Aug 20, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Uncertain:1
Nov 22, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.466G>A (p.E156K) alteration is located in exon 1 (coding exon 1) of the DES gene. This alteration results from a G to A substitution at nucleotide position 466, causing the glutamic acid (E) at amino acid position 156 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.40
CardioboostCm
Uncertain
0.70
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.32
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D
Eigen
Uncertain
0.68
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.87
D
MetaSVM
Uncertain
0.49
D
MutationAssessor
Uncertain
2.8
M
PhyloP100
5.6
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-2.3
N
REVEL
Pathogenic
0.82
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.029
D
Polyphen
0.98
D
Vest4
0.72
MutPred
0.69
Gain of MoRF binding (P = 0.0045);
MVP
0.95
MPC
2.0
ClinPred
0.98
D
GERP RS
4.6
Varity_R
0.70
gMVP
0.92
Mutation Taster
=11/89
disease causing

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

Other links and lift over

dbSNP: rs765471098; hg19: chr2-220283650; COSMIC: COSV105297252; COSMIC: COSV105297252; API