Is DPM1 p.Arg37Cys (c.109C>T) pathogenic?

DPM1 p.Arg37Cys (c.109C>T) is classified Uncertain significance in DPM1 (ClinVar, Single submitter, 1 submitter; last evaluated 2021-10-08). AlphaMissense: ambiguous (0.3941); Absent from gnomAD v4.1; Associated with congenital disorder of glycosylation type 1E.

What condition is associated with DPM1 p.Arg37Cys (c.109C>T)?

DPM1 p.Arg37Cys (c.109C>T) is associated with congenital disorder of glycosylation type 1E (ClinVar).

How common is DPM1 p.Arg37Cys (c.109C>T) in the general population?

DPM1 p.Arg37Cys (c.109C>T) is absent from gnomAD v4.1 (gnomAD).

How is DPM1-CDG inherited?

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

What do computational predictors say about DPM1 p.Arg37Cys (c.109C>T)?

AlphaMissense predicts ambiguous (score 0.3941) — an in-silico prediction, not a clinical call.

DPM1 p.Arg37Cys

c.109C>T · rs369939483 · VCV1401649

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3941 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

congenital disorder of glycosylation type 1E

Computational evidence

Protein change
AlphaMissense	0.3941	ambiguous
REVEL	0.383	indeterminate
SaProt	LLR -10.60	damaging
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.9	GERP 1.7, phastCons 1
Regional constraint	o/e 1.09	unconstrained · MANE · 16 kb · p 0.19 · regional, not allelic
Overall
CADD	31.0	PHRED · no single calibrated threshold — expert panels disagree

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

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: DPM1
Protein: p.Arg37Cys
Coding: c.109C>T
MANE Select: NM_003859
dbSNP: rs369939483
Type: single nucleotide variant
Location: chr20:50958415 (GRCh38)
Gene constraint: LOEUF 1.005 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 88.61

Full DPM1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

congenital disorder of glycosylation type 1E — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For DPM1-CDG (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

DPM1 p.Arg92Gly Pathogenic ★★ same condition
DPM1 p.His124Arg Likely pathogenic ★★ same condition
DPM1 p.Met1Leu Pathogenic/Likely pathogenic ★★ same condition
DPM1 c.*12T>C Uncertain significance ★★ same condition
DPM1 p.Ala109Val Uncertain significance ★★ same condition
DPM1 p.Arg12Met Uncertain significance ★★ ⚠ same condition
DPM1 p.Arg191Gln Uncertain significance ★★ ⚠ same condition
DPM1 p.Arg20Leu 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/dpm1-p-arg37cys (accessed [today's date]).

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