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SOX9 p.Pro490=

c.1470G>A · rs772902383 · VCV1625558

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000254%, nfe)
Conditions
1
campomelic dysplasia

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 1.5GERP 1.7, phastCons 1
Overall
CADD12.53PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000254% European (non-Finnish) · 3/1,179,902 alleles
Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%
Overall 0.000187% 3/1,603,518 alleles · very rare exomes 3/1,451,496 · genomes 0/152,022 · 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
SOX9
Protein
p.Pro490=
Coding
c.1470G>A
MANE Select
NM_000346
dbSNP
rs772902383
Type
single nucleotide variant
Location
chr17:72124327 (GRCh38)
Gene constraint
LOEUF 0.154 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 56.69 · 1 PDB
Residue 490
a UniProt-annotated variant site (in cmd1); the 'transactivation domain (tac)' region; the 'disordered' region
Full SOX9 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/sox9-p-pro490 (accessed [today's date]).

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