18-31130588-C-G

Position:

chr18-31130588-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_024421.2(DSC1):c.2611G>C(p.Glu871Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,614,084 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 (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

DSC1
NM_024421.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.10

Variant links:

Genes affected

DSC1 (HGNC:3035): (desmocollin 1) The protein encoded by this gene is a calcium-dependent glycoprotein that is a member of the desmocollin subfamily of the cadherin superfamily. These desmosomal family members, along with the desmogleins, are found primarily in epithelial cells where they constitute the adhesive proteins of the desmosome cell-cell junction and are required for cell adhesion and desmosome formation. A subtype of IgA pemphigus, a life-threatening autoimmune disease, is characterized by the presence of autoantibodies that target the encoded protein. The desmosomal family members are arranged in two clusters on chromosome 18. Alternative splicing of this gene results in multiple transcript variants. At least one of these variants encodes a preproprotein that is proteolytically processed to generate the mature protein. [provided by RefSeq, Nov 2015]

DSC1 links:

DSCAS (HGNC:):

DSCAS links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.32972914).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DSC1	NM_024421.2 linkuse as main transcript	c.2611G>C	p.Glu871Gln	missense_variant	16/16	ENST00000257198.6	NP_077739.1	Q08554-1
DSC1	NM_004948.3 linkuse as main transcript	c.*134G>C		3_prime_UTR_variant	17/17		NP_004939.1	Q08554-2Q9HB00
DSCAS	NR_110785.1 linkuse as main transcript	n.209-20211C>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
DSC1	ENST00000257198.6 linkuse as main transcript	c.2611G>C	p.Glu871Gln	missense_variant	16/16	2	NM_024421.2	ENSP00000257198.6	Q08554-1
DSC1	ENST00000257197 linkuse as main transcript	c.*134G>C		3_prime_UTR_variant	17/17	1		ENSP00000257197.3	Q08554-2
DSCAS	ENST00000654403.2 linkuse as main transcript	n.283C>G		non_coding_transcript_exon_variant	3/3
DSCAS	ENST00000581836.2 linkuse as main transcript	n.225-20211C>G		intron_variant		4

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251402

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000809

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 19, 2023

The c.2611G>C (p.E871Q) alteration is located in exon 16 (coding exon 16) of the DSC1 gene. This alteration results from a G to C substitution at nucleotide position 2611, causing the glutamic acid (E) at amino acid position 871 to be replaced by a glutamine (Q). 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

0.30

BayesDel_addAF

Benign

-0.084

BayesDel_noAF

Benign

-0.18

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

Eigen

Pathogenic

0.84

Eigen_PC

Pathogenic

0.83

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.028

MetaRNN

Benign

0.33

MetaSVM

Uncertain

0.30

MutationAssessor

Uncertain

2.8

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.6

REVEL

Uncertain

0.47

Sift

Benign

0.12

Sift4G

Pathogenic

0.0

Polyphen

0.99

Vest4

0.27

MutPred

0.53

Loss of sheet (P = 0.0817);

MVP

0.94

MPC

0.39

ClinPred

0.92

GERP RS

6.2

Varity_R

0.29

gMVP

0.33

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