Variant 18-31376929-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_177986.5(DSG4):c.18C>A(p.Phe6Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

DSG4
NM_177986.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.16

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:):

DSG1-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12654531).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DSG4	NM_177986.5 linkuse as main transcript	c.18C>A	p.Phe6Leu	missense_variant	1/16	ENST00000308128.9	NP_817123.1	Q86SJ6-1
DSG4	NM_001134453.3 linkuse as main transcript	c.18C>A	p.Phe6Leu	missense_variant	1/15		NP_001127925.1	Q86SJ6-2
DSG1-AS1	NR_110788.1 linkuse as main transcript	n.157-22476G>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DSG4	ENST00000308128.9 linkuse as main transcript	c.18C>A	p.Phe6Leu	missense_variant	1/16	1	NM_177986.5	ENSP00000311859.4		Q86SJ6-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000279

AC:

AN:

250790

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135536

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000382

Gnomad SAS 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:

0.00000616

AC:

AN:

1461342

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726954

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000227

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 13, 2022

The c.18C>A (p.F6L) alteration is located in exon 1 (coding exon 1) of the DSG4 gene. This alteration results from a C to A substitution at nucleotide position 18, causing the phenylalanine (F) at amino acid position 6 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.36

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.11

T;.

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.26

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.30

T;T

M_CAP

Benign

0.031

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-0.87

MutationAssessor

Benign

1.3

L;L

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-0.97

N;N

REVEL

Benign

0.22

Sift

Benign

0.69

T;T

Sift4G

Benign

0.13

T;T

Polyphen

0.0

B;B

Vest4

0.19

MutPred

0.46

Gain of disorder (P = 0.153);Gain of disorder (P = 0.153);

MVP

0.59

MPC

0.035

ClinPred

0.060

GERP RS

5.1

Varity_R

0.11

gMVP

0.15

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over