Is DSG4 p.Arg797= (c.2391A>C) pathogenic?

DSG4 p.Arg797= (c.2391A>C) is classified Benign in DSG4 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-11-12). Low-frequency (popmax 3.98%, afr); Associated with hypotrichosis 6.

What condition is associated with DSG4 p.Arg797= (c.2391A>C)?

DSG4 p.Arg797= (c.2391A>C) is associated with hypotrichosis 6 (ClinVar).

How common is DSG4 p.Arg797= (c.2391A>C) in the general population?

DSG4 p.Arg797= (c.2391A>C) is low-frequency (popmax 3.98%, afr) (gnomAD).

How is Hypotrichosis simplex inherited?

Typically Autosomal dominant, Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

DSG4 p.Arg797=

c.2391A>C · rs112653254 · VCV787463

Benign Multiple submitters

Classification

Benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

low-frequency (popmax 3.98%, afr)

Conditions

hypotrichosis 6

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not looked up on this page · why
Constraint at this position
Conservation	phyloP -6.7	GERP -4
Overall
CADD	0.055	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 3.98% African / African-American · 2,988/75,054 alleles

Filtering AF 3.86% ClinGen BA1/BS1 input FAF95, joint · FAF99 3.81%

Overall 0.246% 3,974/1,614,198 alleles · low-frequency

Ancestry group	Frequency	1 in
African / African-Americangrpmax	3.98%	25
Admixed American	0.461%	217
Middle Eastern	0.396%	253
Remaining individualsnot grpmax-eligible	0.37%	271
Ashkenazi Jewishnot grpmax-eligible	0.0507%	1,974
European (non-Finnish)	0.0359%	2,783
South Asian	0.0165%	6,072

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: DSG4
Protein: p.Arg797=
Coding: c.2391A>C
dbSNP: rs112653254
Type: single nucleotide variant
Location: chr18:31412863 (GRCh38)

Full DSG4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

hypotrichosis 6 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Hypotrichosis simplex (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive
Onset: Childhood

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/dsg4-p-arg797 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown