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PHOX2B p.Pro224=

c.672G>C · rs1348881057 · VCV1092380

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00265%, eas)
Conditions
2
hereditary neoplastic syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.097moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -6.3GERP -3.7
Overall
CADD2.293PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00265% East Asian · 1/37,738 alleles
Overall 6.65e-05% 1/1,503,776 alleles · very rare exomes 1/1,353,662 · genomes 0/150,114 · 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
PHOX2B
Protein
p.Pro224=
Coding
c.672G>C
MANE Select
NM_003924
dbSNP
rs1348881057
Type
single nucleotide variant
Location
chr4:41746080 (GRCh38)
Gene constraint
LOEUF 0.349 · pLI 0.99 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 61.94 · 5 PDB
Residue 224
the 'disordered' region
Full PHOX2B gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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/phox2b-p-pro224 (accessed [today's date]).

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