Is DEDD p.Gly174Arg (c.520G>C) pathogenic?

DEDD p.Gly174Arg (c.520G>C) is classified Uncertain significance in DEDD (ClinVar, Single submitter, 1 submitter; last evaluated 2024-01-19). AlphaMissense: ambiguous (0.4692); Very rare (popmax 0.01%, amr).

How common is DEDD p.Gly174Arg (c.520G>C) in the general population?

DEDD p.Gly174Arg (c.520G>C) is very rare (popmax 0.01%, amr) (gnomAD).

What do computational predictors say about DEDD p.Gly174Arg (c.520G>C)?

AlphaMissense predicts ambiguous (score 0.4692) — an in-silico prediction, not a clinical call.

DEDD p.Gly174Arg

c.520G>C · rs759463050 · VCV3081256

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.4692 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.01%, amr)

Missense predictors

0/2 damaging

REVEL, SaProt · AlphaMissense no call

Computational evidence

Protein change
AlphaMissense	0.4692	ambiguous
REVEL	0.028	moderately benign-leaning
SaProt	LLR -5.74	tolerated
⇒ REVEL and SaProt both call this tolerated; AlphaMissense makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 4.8	GERP 1.2, phastCons 1
Regional constraint	o/e 0.76	unconstrained · MANE · 1,945 bp · p 6.1e-05 · regional, not allelic
Overall
CADD	23.7	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 0.01% Admixed American · 6/60,004 alleles

Filtering AF 0.00428% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00295%

Overall 0.00217% 35/1,614,114 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.01%	10,001
European (non-Finnish)	0.00246%	40,691

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: DEDD
Protein: p.Gly174Arg
Coding: c.520G>C
MANE Select: NM_032998
dbSNP: rs759463050
Type: single nucleotide variant
Location: chr1:161123135 (GRCh38)
Gene constraint: LOEUF 0.255 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 77.90
Residue 174: the 'disordered' region

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

Similar variants

DEDD p.Arg124His Uncertain significance ★ ⚠ same type
DEDD p.Arg179Cys Uncertain significance ★ ⚠ same type
DEDD p.Arg196Lys Uncertain significance ★ ⚠ same type
DEDD p.Arg200Gln Uncertain significance ★ ⚠ same type
DEDD p.Arg228Cys Uncertain significance ★ ⚠ same type
DEDD p.Arg28His Uncertain significance ★ ⚠ same type
DEDD p.Arg58Cys Uncertain significance ★ ⚠ same type
DEDD p.Arg58His 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/dedd-p-gly174arg (accessed [today's date]).

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