Genetic Variant DSG4:c.-52G>A (chr18-31376860-G-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.-52G>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 0.000321 in 1,606,664 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00027 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00033 ( 4 hom. )

Consequence

DSG4
NM_177986.5 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.75

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=-0.88).

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000269 (41/152280) while in subpopulation SAS AF = 0.0056 (27/4820). AF 95% confidence interval is 0.00395. There are 1 homozygotes in GnomAd4. There are 29 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 4 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.-52G>A	5_prime_UTR	Exon 1 of 16	NP_817123.1	Q86SJ6-1
DSG4	NM_001134453.3		c.-52G>A	5_prime_UTR	Exon 1 of 15	NP_001127925.1	Q86SJ6-2
DSG1-AS1	NR_110788.1		n.157-22407C>T	intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
DSG4	ENST00000308128.9	TSL:1 MANE Select	c.-52G>A	5_prime_UTR	Exon 1 of 16	ENSP00000311859.4	Q86SJ6-1
DSG1-AS1	ENST00000578477.6	TSL:3	n.157-12575C>T	intron	N/A
DSG1-AS1	ENST00000581452.1	TSL:3	n.90-12575C>T	intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00560

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000326

AC:

474

AN:

1454384

Hom.:

Cov.:

AF XY:

0.000432

AC XY:

313

AN XY:

723942

show subpopulations

African (AFR)

AF:

0.000300

AC:

AN:

33280

American (AMR)

AF:

0.0000448

AC:

AN:

44616

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26042

East Asian (EAS)

AF:

0.0000758

AC:

AN:

39590

South Asian (SAS)

AF:

0.00492

AC:

423

AN:

86052

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53344

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

0.00000904

AC:

AN:

1105588

Other (OTH)

AF:

0.000416

AC:

AN:

60128

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

126

158

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:

0.000269

AC:

AN:

152280

Hom.:

Cov.:

AF XY:

0.000389

AC XY:

AN XY:

74460

show subpopulations

African (AFR)

AF:

0.000192

AC:

AN:

41566

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5188

South Asian (SAS)

AF:

0.00560

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

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:

0.0000693

Hom.:

Bravo

AF:

0.000132

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

-0.88

CADD

Benign

0.15

(source)

DANN

Benign

0.62

PhyloP100

-1.8

PromoterAI

-0.028

Neutral

(source)

Mutation Taster

=300/0

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