Is DEDD2 p.Arg201Gln (c.602G>A) pathogenic?

DEDD2 p.Arg201Gln (c.602G>A) is classified Uncertain significance in DEDD2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-01-23). AlphaMissense: likely pathogenic (0.9624); Very rare (popmax 0.000342%, nfe).

How common is DEDD2 p.Arg201Gln (c.602G>A) in the general population?

DEDD2 p.Arg201Gln (c.602G>A) is very rare (popmax 0.000342%, nfe) (gnomAD).

What do computational predictors say about DEDD2 p.Arg201Gln (c.602G>A)?

AlphaMissense predicts likely pathogenic (score 0.9624) — an in-silico prediction, not a clinical call.

DEDD2 p.Arg201Gln

c.602G>A · VCV3839244

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9624 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000342%, nfe)

Missense predictors

2/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.9624	likely pathogenic
REVEL	0.253	benign-leaning
SaProt	LLR -14.47	damaging
⇒ AlphaMissense and SaProt call this damaging; REVEL does not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 1.7, phastCons 1
Regional constraint	o/e 0.68	unconstrained · MANE · 10 kb · p 9.8e-06 · regional, not allelic
Overall
CADD	33.0	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

Grpmax group 0.000342% European (non-Finnish) · 4/1,169,598 alleles

Filtering AF 8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%

Overall 0.000251% 4/1,593,344 alleles · very rare exomes 4/1,440,994 · genomes 0/152,350 · joint denominator

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: DEDD2
Protein: p.Arg201Gln
Coding: c.602G>A
MANE Select: NM_133328
Type: single nucleotide variant
Location: chr19:42199817 (GRCh38)
Gene constraint: LOEUF 1.12 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 72.80

Full DEDD2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

DEDD2 p.Arg201Trp Uncertain significance ★ ⚠ same residue
DEDD2 p.Ala103Glu Uncertain significance ★ ⚠ same type
DEDD2 p.Ala177Val Uncertain significance ★ ⚠ same type
DEDD2 p.Ala52Val Uncertain significance ★ ⚠ same type
DEDD2 p.Arg114Cys Uncertain significance ★ ⚠ same type
DEDD2 p.Arg131Cys Uncertain significance ★ ⚠ same type
DEDD2 p.Arg132Cys Uncertain significance ★ ⚠ same type
DEDD2 p.Arg132His Uncertain significance ★ ⚠ same type

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/dedd2-p-arg201gln (accessed [today's date]).

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