Variant
DSG2 C591X
NM_001943.5(DSG2):c.1773_1774del (p.Cys591Ter)
- p.C591X:TGT>TGA
- p.Cys591Ter
- p.C591*
- rs397516703
- ClinVar classification
- Pathogenic
- Review status
- 2 stars out of 4criteria provided, multiple submitters, no conflicts
- Last evaluated
- 27 January 2026
Data current to ClinVar release 2026-10-12 · Dante Labs data release 2026.10.16-c6eea6bfFacts last changed 16 October 2026
Summary
C591X is a nonsense variant in DSG2: it creates an early stop signal, so the protein the gene encodes is predicted to be cut short. ClinVar classifies it as pathogenic for arrhythmogenic right ventricular dysplasia 10 (criteria provided, multiple submitters, no conflicts).
ClinVar classifications
| Condition | Classification | Review status | Submissions | Last evaluated |
|---|---|---|---|---|
| arrhythmogenic right ventricular dysplasia 10ClinVar VCV000044286 (opens in a new tab) | Pathogenic | 2 stars out of 4criteria provided, multiple submitters, no conflicts | 2 submissions | 27 January 2026 |
Classifications as ClinVar records them in release 2026-10-12. ClinVar updates them as evidence is reviewed.
Where it lies in DSG2
C591X lies in exon 12 of the 15 in DSG2's MANE Select transcript, NM_001943.5.
Molecular details
| Gene | DSG2 |
|---|---|
| Transcript | NM_001943.5MANE Select |
| Coding DNA change (HGVS c.) | c.1773_1774del |
| Protein change (HGVS p.) | p.Cys591Terp.C591* |
| Predicted consequence | Nonsense (stop gained)stop_gained (opens in a new tab) |
| Predicted impact | High |
| Position (GRCh38) | chr18:31538869 TTG>T |
| Position (GRCh37) | chr18:29118832 TTG>T |
| dbSNP ID | rs397516703 (opens in a new tab) |
| ClinVar Variation ID | VCV000044286 (opens in a new tab) |
| ClinVar Allele ID | 53453 |
| ClinGen Allele Registry ID | CA021547 (opens in a new tab) |
| ClinVar name | NM_001943.5(DSG2):c.1773_1774del (p.Cys591_Glu592delinsTer) |
| Other names | p.C591X:TGT>TGA |
DSG2 C591X in other databases
Reports that look at this variant (1)
These Genome Test condition reports include C591X among the variants they look at.
| Report | Conditions | Inheritance |
|---|---|---|
| Arrhythmogenic Cardiomyopathy | Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) |
Other variants in DSG2
- A753Lfs*15Pathogenic/likely pathogenic2 stars out of 4
- c.523+1_523+2delLikely pathogenic2 stars out of 4
- c.523+1G>APathogenic2 stars out of 4
- c.523+1G>TPathogenic/likely pathogenic2 stars out of 4
- c.523+2T>CPathogenic/likely pathogenic2 stars out of 4
- c.1423+1G>TLikely pathogenic2 stars out of 4
- D494ALikely pathogenic2 stars out of 4
- D794Pfs*16Pathogenic/likely pathogenic2 stars out of 4
- E1018Gfs*20Pathogenic/likely pathogenic2 stars out of 4
- E1020Afs*18Pathogenic/likely pathogenic2 stars out of 4
Limitations
This page describes publicly available information about a genetic variant. It is not a diagnosis, and it says nothing about whether you or anyone else carries this variant.
Classifications come from ClinVar and change as new evidence is reviewed. A classification here may differ from the one in ClinVar today, or from the one a laboratory reports.
Whole genome sequencing with short reads can miss or miscall some variants, particularly in repeated or highly similar stretches of DNA and in large insertions, deletions or rearrangements.
If you have questions about a variant in your own results or in your family, talk to a genetic counsellor or your doctor.
Sources & credits
- Classifications from ClinVar (release 2026-10-12), National Center for Biotechnology Information.
- Condition terms from the Mondo Disease Ontology (release 2026-10-06), used under CC BY 4.0.
- Gene symbols and names from the HUGO Gene Nomenclature Committee (release 2026-10-16).
- Allele identifiers from the ClinGen Allele Registry (release 2026-10-16-c4908f54).
- Reference SNP identifiers from dbSNP (release b157), National Center for Biotechnology Information.
- Gene–disease links from the Gene Curation Coalition, GenCC (release 2026-10-16).
- Difficult regions from the Genome in a Bottle Consortium (release v3.6).
- Transcripts from MANE (release v1.5), NCBI and EMBL-EBI.
- Predicted consequences from mehari (release 0.11.0), with transcript models from cdot.
- Built from Dante Labs data release 2026.10.16-c6eea6bf of 16 October 2026.
Cite this page
Dante Labs. (16 October 2026). DSG2 C591X (c.1773_1774del, rs397516703) (Version 2026.10.16-c6eea6bf). Retrieved 17 October 2026, from https://dantelabs.com/genes/dsg2/variants/c591x
Dante Labs. DSG2 C591X (c.1773_1774del, rs397516703) [Internet]. Version 2026.10.16-c6eea6bf. 16 October 2026 [cited 17 October 2026]. Available from: https://dantelabs.com/genes/dsg2/variants/c591x
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