Is DPM2 p.Thr25Ser (c.74C>G) pathogenic?

DPM2 p.Thr25Ser (c.74C>G) is classified Uncertain significance in DPM2 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-03-04). AlphaMissense: likely benign (0.1634); Ultra-rare (popmax 0.0187%, afr); Associated with congenital muscular dystrophy with intellectual disability and severe epilepsy.

How common is DPM2 p.Thr25Ser (c.74C>G) in the general population?

DPM2 p.Thr25Ser (c.74C>G) is ultra-rare (popmax 0.0187%, afr) (gnomAD).

What do computational predictors say about DPM2 p.Thr25Ser (c.74C>G)?

AlphaMissense predicts likely benign (score 0.1634) — an in-silico prediction, not a clinical call.

DPM2 p.Thr25Ser

Q: What condition is associated with DPM2 p.Thr25Ser (c.74C>G)?

DPM2 p.Thr25Ser (c.74C>G) is associated with congenital muscular dystrophy with intellectual disability and severe epilepsy (ClinVar).

Q: How is Congenital muscular dystrophy with intellectual disability and severe epilepsy inherited?

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

c.74C>G · rs1026866240 · VCV1419961

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1634 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0187%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

congenital muscular dystrophy with intellectual disability and severe epilepsy

Computational evidence

Protein change
AlphaMissense	0.1634	likely benign
REVEL	0.174	moderately benign-leaning
SaProt	LLR -5.05	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.8	GERP 0.8, phastCons 1
Regional constraint	o/e 0.91	unconstrained · MANE · 2,095 bp · p 0.35 · regional, not allelic
Overall
CADD	24.4	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0187% African / African-American · 14/74,920 alleles

Filtering AF 0.0112% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00905%

Overall 0.00093% 15/1,613,558 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0187%	5,351
Remaining individualsnot grpmax-eligible	0.0016%	62,462

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: DPM2
Protein: p.Thr25Ser
Coding: c.74C>G
MANE Select: NM_003863
dbSNP: rs1026866240
Type: single nucleotide variant
Location: chr9:127937453 (GRCh38)
Gene constraint: LOEUF 1.274 · pLI 0.01 (gnomAD)
Structure: AlphaFold pLDDT 91.96

Full DPM2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

congenital muscular dystrophy with intellectual disability and severe epilepsy — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Congenital muscular dystrophy with intellectual disability and severe epilepsy (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

DPM2 p.Arg47Ter Pathogenic/Likely pathogenic ★★ same condition
DPM2 p.Ala52Thr Uncertain significance ★★ ⚠ same condition
DPM2 p.Leu30Val Uncertain significance ★★ ⚠ same condition
DPM2 p.Leu62Val Uncertain significance ★★ ⚠ same condition
DPM2 p.Tyr43His Uncertain significance ★★ ⚠ same condition
DPM2 p.Val51Ile Uncertain significance ★★ ⚠ same condition
DPM2 c.3+12A>G Benign/Likely benign ★★ same condition
DPM2 c.94-8G>T Likely benign ★★ 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/dpm2-p-thr25ser (accessed [today's date]).

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