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PHOX2B p.Phe105=

c.315C>T · rs763804374 · VCV704591

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00441%, nfe)
Conditions
2
Haddad syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.199benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 2.2GERP 2.7, phastCons 1
Overall
CADD9.157PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00441% European (non-Finnish) · 52/1,179,914 alleles
Filtering AF 0.00342% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0031%
Overall 0.00323% 52/1,611,456 alleles · very rare exomes 48/1,459,486 · genomes 4/151,970 · 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.Phe105=
Coding
c.315C>T
MANE Select
NM_003924
dbSNP
rs763804374
Type
single nucleotide variant
Location
chr4:41747463 (GRCh38)
Gene constraint
LOEUF 0.349 · pLI 0.99 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 61.94 · 5 PDB
Residue 105
a DNA-binding 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-phe105 (accessed [today's date]).

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