Is DPM3 p.Gly27= (c.81C>T) pathogenic?

DPM3 p.Gly27= (c.81C>T) is classified Likely benign in DPM3 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-01-16). Absent from gnomAD v4.1; Associated with DPM3-congenital disorder of glycosylation.

What condition is associated with DPM3 p.Gly27= (c.81C>T)?

DPM3 p.Gly27= (c.81C>T) is associated with DPM3-congenital disorder of glycosylation (ClinVar).

How common is DPM3 p.Gly27= (c.81C>T) in the general population?

DPM3 p.Gly27= (c.81C>T) is absent from gnomAD v4.1 (gnomAD).

How is DPM3-CDG inherited?

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

DPM3 p.Gly27=

c.81C>T · rs2526668806 · VCV2085263

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

DPM3-congenital disorder of glycosylation

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 2.6	GERP 1.6, phastCons 1
Overall
CADD	13.56	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: DPM3
Protein: p.Gly27=
Coding: c.81C>T
MANE Select: NM_153741
dbSNP: rs2526668806
Type: single nucleotide variant
Location: chr1:155140160 (GRCh38)
Gene constraint: LOEUF 1.364 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 88.73

Full DPM3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

DPM3-congenital disorder of glycosylation — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For DPM3-CDG (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood

Similar variants

DPM3 p.Ala70Thr Uncertain significance ★★ ⚠ same condition
DPM3 p.Ala86Asp Uncertain significance ★★ ⚠ same condition
DPM3 p.Arg60Cys Uncertain significance ★★ ⚠ same condition
DPM3 p.Arg60Leu Uncertain significance ★★ ⚠ same condition
DPM3 p.Glu73Ala Uncertain significance ★★ ⚠ same condition
DPM3 p.Gly89Glu Uncertain significance ★★ ⚠ same condition
DPM3 p.Trp7Arg Uncertain significance ★★ ⚠ same condition
DPM3 p.Tyr59Ser 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/dpm3-p-gly27 (accessed [today's date]).

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