rs138599871

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_004415.4(DSP):​c.3956C>G​(p.Thr1319Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000459 in 1,613,888 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1319I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000049 ( 1 hom. )

Consequence

DSP
NM_004415.4 missense

Scores

7
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:5

Conservation

PhyloP100: 2.00

Publications

1 publications found
Variant links:
Genes affected
DSP (HGNC:3052): (desmoplakin) This gene encodes a protein that anchors intermediate filaments to desmosomal plaques and forms an obligate component of functional desmosomes. Mutations in this gene are the cause of several cardiomyopathies and keratodermas, including skin fragility-woolly hair syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]
DSP Gene-Disease associations (from GenCC):
  • arrhythmogenic right ventricular dysplasia 8
    Inheritance: AD, AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • keratosis palmoplantaris striata 2
    Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Ambry Genetics, Genomics England PanelApp
  • skin fragility-woolly hair-palmoplantar keratoderma syndrome
    Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, G2P, Genomics England PanelApp, Ambry Genetics
  • arrhythmogenic cardiomyopathy with wooly hair and keratoderma
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, ClinGen, Orphanet, Ambry Genetics
  • cardiomyopathy, dilated, with wooly hair, keratoderma, and tooth agenesis
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • lethal acantholytic epidermolysis bullosa
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • striate palmoplantar keratoderma
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • severe dermatitis-multiple allergies-metabolic wasting syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.25256377).
BP6
Variant 6-7580146-C-G is Benign according to our data. Variant chr6-7580146-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 179434.
BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.0000486 (71/1461812) while in subpopulation SAS AF = 0.000742 (64/86254). AF 95% confidence interval is 0.000596. There are 1 homozygotes in GnomAdExome4. There are 51 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004415.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSP
NM_004415.4
MANE Select
c.3956C>Gp.Thr1319Ser
missense
Exon 23 of 24NP_004406.2
DSP
NM_001319034.2
c.3956C>Gp.Thr1319Ser
missense
Exon 23 of 24NP_001305963.1
DSP
NM_001008844.3
c.3582+374C>G
intron
N/ANP_001008844.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSP
ENST00000379802.8
TSL:1 MANE Select
c.3956C>Gp.Thr1319Ser
missense
Exon 23 of 24ENSP00000369129.3
DSP
ENST00000418664.3
TSL:1
c.3582+374C>G
intron
N/AENSP00000396591.2
DSP
ENST00000713904.1
c.3830C>Gp.Thr1277Ser
missense
Exon 23 of 24ENSP00000519203.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152076
Hom.:
0
Cov.:
32
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:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000758
AC:
19
AN:
250720
AF XY:
0.000103
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
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:
0.0000486
AC:
71
AN:
1461812
Hom.:
1
Cov.:
32
AF XY:
0.0000701
AC XY:
51
AN XY:
727200
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.0000894
AC:
4
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.000742
AC:
64
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53386
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111986
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
6
11
17
22
28
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:
0.0000197
AC:
3
AN:
152076
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74286
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41372
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.000621
AC:
3
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10588
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000576
AC:
7

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
1
not specified (2)
-
-
1
Arrhythmogenic cardiomyopathy with wooly hair and keratoderma (1)
-
-
1
Arrhythmogenic right ventricular dysplasia 8;C1854063:Arrhythmogenic cardiomyopathy with wooly hair and keratoderma (1)
-
-
1
Cardiomyopathy (1)
-
1
-
Cardiomyopathy, dilated, with wooly hair, keratoderma, and tooth agenesis (1)
-
-
1
Cardiovascular phenotype (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.16
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.19
T
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.67
T
M_CAP
Benign
0.079
D
MetaRNN
Benign
0.25
T
MetaSVM
Uncertain
0.12
D
MutationAssessor
Benign
0.69
N
PhyloP100
2.0
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.18
N
REVEL
Uncertain
0.36
Sift
Benign
0.28
T
Sift4G
Benign
0.69
T
Polyphen
0.99
D
Vest4
0.51
MutPred
0.087
Loss of methylation at K1318 (P = 0.0964)
MVP
0.66
MPC
0.77
ClinPred
0.13
T
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.078
gMVP
0.59
Mutation Taster
=85/15
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: rs138599871; hg19: chr6-7580379; API