Genetic Variant DSG4:c.-101T>A (chr18-31376811-T-A) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_177986.5(DSG4):c.-101T>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000338 in 1,281,352 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00023 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00035 ( 2 hom. )

Consequence

DSG4
NM_177986.5 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.10

Publications

0 publications found

Variant links:

Genes affected

DSG4 (HGNC:21307): (desmoglein 4) This gene encodes a member of the desmoglein subgroup of desmosomal cadherins. The encoded preproprotein is proteolytically processed to generate the mature protein. This protein is a transmembrane component of desmosomes and may play a role in cell-cell adhesion in epithelial cells. Mutations in the gene are associated with localized autosomal recessive hypotrichosis and monilethrix, characterized by impaired hair growth. [provided by RefSeq, May 2016]

DSG4 links:

DSG1-AS1 (HGNC:51115): (DSG1 antisense RNA 1)

DSG1-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.77).

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00023 (35/152220) while in subpopulation SAS AF = 0.00559 (27/4826). AF 95% confidence interval is 0.00395. There are 1 homozygotes in GnomAd4. There are 28 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High Homozygotes in GnomAdExome4 at 2 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_177986.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
DSG4	NM_177986.5	MANE Select	c.-101T>A	5_prime_UTR	Exon 1 of 16	NP_817123.1	Q86SJ6-1
DSG4	NM_001134453.3		c.-101T>A	5_prime_UTR	Exon 1 of 15	NP_001127925.1	Q86SJ6-2
DSG1-AS1	NR_110788.1		n.157-22358A>T	intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
DSG4	ENST00000308128.9	TSL:1 MANE Select	c.-101T>A	5_prime_UTR	Exon 1 of 16	ENSP00000311859.4	Q86SJ6-1
DSG1-AS1	ENST00000578477.6	TSL:3	n.157-12526A>T	intron	N/A
DSG1-AS1	ENST00000581452.1	TSL:3	n.90-12526A>T	intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.000217

AC:

AN:

152102

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00559

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000352

AC:

398

AN:

1129132

Hom.:

Cov.:

AF XY:

0.000489

AC XY:

282

AN XY:

576824

show subpopulations

African (AFR)

AF:

0.000303

AC:

AN:

26412

American (AMR)

AF:

0.0000469

AC:

AN:

42674

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23872

East Asian (EAS)

AF:

0.0000541

AC:

AN:

36942

South Asian (SAS)

AF:

0.00467

AC:

363

AN:

77734

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52398

Middle Eastern (MID)

AF:

0.000197

AC:

AN:

5070

European-Non Finnish (NFE)

AF:

0.00000368

AC:

AN:

814844

Other (OTH)

AF:

0.000386

AC:

AN:

49186

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

108

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.000230

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.000376

AC XY:

AN XY:

74426

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41534

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.000193

AC:

AN:

5180

South Asian (SAS)

AF:

0.00559

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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.:

Bravo

AF:

0.000106

Asia WGS

AF:

0.00722

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hypotrichosis 6 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.77

CADD

Benign

(source)

DANN

Benign

0.69

PhyloP100

2.1

PromoterAI

-0.0078

Neutral

(source)

Mutation Taster

=295/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over