2-219418541-G-A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 1P and 2B. PP2BP4_Moderate

The NM_001927.4(DES):​c.79G>A​(p.Gly27Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000749 in 1,601,728 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G27R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

DES
NM_001927.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:9

Conservation

PhyloP100: 6.49

Publications

2 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: Likely_benign. The variant received -1 ACMG points.

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=0.20816237).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001927.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DES
NM_001927.4
MANE Select
c.79G>Ap.Gly27Ser
missense
Exon 1 of 9NP_001918.3
DES
NM_001382708.1
c.79G>Ap.Gly27Ser
missense
Exon 1 of 9NP_001369637.1
DES
NM_001382712.1
c.79G>Ap.Gly27Ser
missense
Exon 1 of 9NP_001369641.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DES
ENST00000373960.4
TSL:1 MANE Select
c.79G>Ap.Gly27Ser
missense
Exon 1 of 9ENSP00000363071.3
DES
ENST00000942906.1
c.79G>Ap.Gly27Ser
missense
Exon 1 of 10ENSP00000612965.1
DES
ENST00000942898.1
c.79G>Ap.Gly27Ser
missense
Exon 1 of 9ENSP00000612957.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152112
Hom.:
0
Cov.:
34
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000447
AC:
1
AN:
223774
AF XY:
0.00000804
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000101
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000690
AC:
10
AN:
1449616
Hom.:
0
Cov.:
72
AF XY:
0.00000971
AC XY:
7
AN XY:
720998
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32546
American (AMR)
AF:
0.00
AC:
0
AN:
43432
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25584
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38714
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84876
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51308
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5678
European-Non Finnish (NFE)
AF:
0.00000903
AC:
10
AN:
1107740
Other (OTH)
AF:
0.00
AC:
0
AN:
59738
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.460
Heterozygous variant carriers
0
1
2
3
4
5
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
AF:
0.0000131
AC:
2
AN:
152112
Hom.:
0
Cov.:
34
AF XY:
0.0000135
AC XY:
1
AN XY:
74306
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41440
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5156
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67992
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
6
-
not provided (6)
-
1
-
Cardiovascular phenotype (1)
-
1
-
Desmin-related myofibrillar myopathy (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
CardioboostCm
Benign
0.022
BayesDel_addAF
Uncertain
0.030
T
BayesDel_noAF
Benign
-0.19
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Benign
0.13
T
Eigen
Benign
-0.0059
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.69
T
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.21
T
MetaSVM
Benign
-0.59
T
MutationAssessor
Benign
-0.43
N
PhyloP100
6.5
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.030
N
REVEL
Uncertain
0.32
Sift
Benign
0.46
T
Sift4G
Benign
0.45
T
Polyphen
0.45
B
Vest4
0.28
MutPred
0.32
Gain of phosphorylation at G27 (P = 0.0244)
MVP
0.89
MPC
0.90
ClinPred
0.55
D
GERP RS
5.1
PromoterAI
-0.036
Neutral
Varity_R
0.082
gMVP
0.39
Mutation Taster
=81/19
polymorphism

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: rs727504877; hg19: chr2-220283263; API