rs1553603267

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_001927.4(DES):​c.434G>A​(p.Gly145Asp) variant causes a missense change. The variant allele was found at a frequency of 0.000000709 in 1,411,070 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. G145G) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

DES
NM_001927.4 missense

Scores

1
9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.77

Publications

1 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 2 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.
BP4
Computational evidence support a benign effect (MetaRNN=0.32996243).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DESNM_001927.4 linkc.434G>A p.Gly145Asp missense_variant Exon 1 of 9 ENST00000373960.4 NP_001918.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DESENST00000373960.4 linkc.434G>A p.Gly145Asp missense_variant Exon 1 of 9 1 NM_001927.4 ENSP00000363071.3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
7.09e-7
AC:
1
AN:
1411070
Hom.:
0
Cov.:
91
AF XY:
0.00
AC XY:
0
AN XY:
697448
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32184
American (AMR)
AF:
0.00
AC:
0
AN:
36706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25372
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36756
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80364
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48788
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5658
European-Non Finnish (NFE)
AF:
9.20e-7
AC:
1
AN:
1086662
Other (OTH)
AF:
0.00
AC:
0
AN:
58580
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
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

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Desmin-related myofibrillar myopathy Uncertain:1
Feb 08, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine with aspartic acid at codon 145 of the DES protein (p.Gly145Asp). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and aspartic acid. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with DES-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.42
CardioboostCm
Benign
0.0064
BayesDel_addAF
Uncertain
0.062
T
BayesDel_noAF
Benign
-0.15
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.68
D
Eigen
Benign
0.12
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.83
T
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.33
T
MetaSVM
Uncertain
0.0066
D
MutationAssessor
Benign
1.4
L
PhyloP100
3.8
PrimateAI
Pathogenic
0.80
T
PROVEAN
Uncertain
-3.6
D
REVEL
Uncertain
0.34
Sift
Benign
0.093
T
Sift4G
Benign
0.18
T
Polyphen
0.39
B
Vest4
0.32
MutPred
0.48
Loss of MoRF binding (P = 0.0427);
MVP
0.91
MPC
2.2
ClinPred
0.98
D
GERP RS
4.6
Varity_R
0.66
gMVP
0.80
Mutation Taster
=42/58
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: rs1553603267; hg19: chr2-220283618; API