rs727502980

Variant names:

• chr18-31074795-C-G
• NM_024422.6:c.1776G>C

Your query was ambiguous. Multiple possible variants found:

• chr18-31074795-C-G
• chr18-31074795-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_024422.6(DSC2):​c.1776G>C​(p.Ala592Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,796 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: DSC2 NM_024422.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -4.50

Genes affected

DSC2 (HGNC:3036): (desmocollin 2) This gene encodes a member of the desmocollin protein subfamily. Desmocollins, along with desmogleins, are cadherin-like transmembrane glycoproteins that are major components of the desmosome. Desmosomes are cell-cell junctions that help resist shearing forces and are found in high concentrations in cells subject to mechanical stress. This gene is found in a cluster with other desmocollin family members on chromosome 18. Mutations in this gene are associated with arrhythmogenic right ventricular dysplasia-11, and reduced protein expression has been described in several types of cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2015]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP7: Synonymous conserved (PhyloP=-4.5 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DSC2	NM_024422.6	c.1776G>C	p.Ala592Ala	synonymous_variant	Exon 12 of 16	ENST00000280904.11	NP_077740.1
DSC2	NM_004949.5	c.1776G>C	p.Ala592Ala	synonymous_variant	Exon 12 of 17		NP_004940.1
DSC2	NM_001406506.1	c.1347G>C	p.Ala449Ala	synonymous_variant	Exon 12 of 16		NP_001393435.1
DSC2	NM_001406507.1	c.1347G>C	p.Ala449Ala	synonymous_variant	Exon 12 of 17		NP_001393436.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DSC2	ENST00000280904.11	c.1776G>C	p.Ala592Ala	synonymous_variant	Exon 12 of 16	1	NM_024422.6	ENSP00000280904.6
DSC2	ENST00000251081.8	c.1776G>C	p.Ala592Ala	synonymous_variant	Exon 12 of 17	1		ENSP00000251081.6
DSC2	ENST00000648081.1	c.1347G>C	p.Ala449Ala	synonymous_variant	Exon 13 of 17			ENSP00000497441.1
DSC2	ENST00000682357.1	c.1347G>C	p.Ala449Ala	synonymous_variant	Exon 12 of 16			ENSP00000507826.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461796 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727190

Gnomad4 AFR exome AF: 0.00

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: 8.99e-7

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	0.029
DANN	Benign	0.41

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr18-28654761;