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DUOX2 p.Phe519Ser

c.1556T>C · rs773634625 · VCV2835034

Uncertain significance Multiple submitters
Classification
Uncertain significance
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
AlphaMissense
likely pathogenic
0.9115 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.0011%, sas)
Missense predictors
3/3 damaging
AlphaMissense, REVEL, SaProt
Conditions
1
thyroid dyshormonogenesis 6

Computational evidence

Protein change
AlphaMissense0.9115likely pathogenic · top 8% in DUOX2
REVEL0.76pathogenic-leaning
SaProtLLR -11.73damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI<0.2all four deltas below 0.2 · A>T here scores Δ0.43 · evaluated, not missing
Constraint at this position
ConservationphyloP 11GERP 1.7, phastCons 1
Regional constrainto/e 1.01unconstrained · MANE · 17 kb · p 0.63 · regional, not allelic
Overall
CADD28.1PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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 0.0011% South Asian · 1/91,078 alleles
Overall 0.000991% 16/1,613,864 alleles · very rare
Ancestry group Frequency 1 in
Finnishnot grpmax-eligible 0.0187% 5,334
Remaining individualsnot grpmax-eligible 0.0032% 31,242
South Asiangrpmax 0.0011% 91,078
European (non-Finnish) 8.47e-05% 1,179,967

Finnish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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
DUOX2
Protein
p.Phe519Ser
Coding
c.1556T>C
MANE Select
NM_001363711
dbSNP
rs773634625
Type
single nucleotide variant
Location
chr15:45108065 (GRCh38)
Gene constraint
LOEUF 1.165 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 84.37
Residue 519
the 'peroxidase-like; mediates peroxidase activity' region; a disulfide bond
Full DUOX2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

thyroid dyshormonogenesis 6 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Genetic transient congenital hypothyroidism (Orphanet):

Inheritance
Autosomal recessive
Onset
Infancy, Neonatal

Similar variants

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/duox2-p-phe519ser (accessed [today's date]).

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