Is DSE p.Asp26= (c.78C>T) pathogenic?

DSE p.Asp26= (c.78C>T) is classified Likely benign in DSE (ClinVar, Multiple submitters, 2 submitters; last evaluated 2026-03-09). Very rare (popmax 0.000339%, nfe); Associated with Ehlers-Danlos syndrome, musculocontractural type 2.

What condition is associated with DSE p.Asp26= (c.78C>T)?

DSE p.Asp26= (c.78C>T) is associated with Ehlers-Danlos syndrome, musculocontractural type 2 (ClinVar).

How common is DSE p.Asp26= (c.78C>T) in the general population?

DSE p.Asp26= (c.78C>T) is very rare (popmax 0.000339%, nfe) (gnomAD).

How is Musculocontractural Ehlers-Danlos syndrome inherited?

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

DSE p.Asp26=

c.78C>T · rs146524076 · VCV734253

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.000339%, nfe)

Conditions

Ehlers-Danlos syndrome, musculocontractural type 2

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -1.1	phastCons 0.001
Overall
CADD	9.987	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000339% European (non-Finnish) · 4/1,180,040 alleles

Filtering AF 7.9e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%

Overall 0.00031% 5/1,613,934 alleles · very rare

Ancestry group	Frequency	1 in
Remaining individualsnot grpmax-eligible	0.0016%	62,488
European (non-Finnish)grpmax	0.000339%	295,010

Remaining individuals shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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: DSE
Protein: p.Asp26=
Coding: c.78C>T
MANE Select: NM_013352
dbSNP: rs146524076
Type: single nucleotide variant
Location: chr6:116399328 (GRCh38)
Gene constraint: LOEUF 0.563 · pLI 0.06 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 86.59 · 1 PDB

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

Disease context

Ehlers-Danlos syndrome, musculocontractural type 2 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Musculocontractural Ehlers-Danlos syndrome (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

DSE p.Asp26Glu Uncertain significance ★★ ⚠ same residue
DSE c.416+1G>A Likely pathogenic ★★ same condition
DSE p.Ala122Thr Uncertain significance ★★ ⚠ same condition
DSE p.Ala135Val Uncertain significance ★★ ⚠ same condition
DSE p.Ala408Thr Uncertain significance ★★ ⚠ same condition
DSE p.Ala54Val Uncertain significance ★★ ⚠ same condition
DSE p.Ala584Val Uncertain significance ★★ ⚠ same condition
DSE p.Ala688Val Uncertain significance ★★ ⚠ same condition

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/dse-p-asp26 (accessed [today's date]).

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