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IL23R p.Pro447=

c.1341T>C · rs747337602 · VCV2902973

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.012%, afr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.029moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -1.3GERP 1.8
Overall
CADD1.285PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.012% African / African-American · 9/74,880 alleles
Filtering AF 0.00624% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00468%
Overall 0.000558% 9/1,613,224 alleles · ultra-rare exomes 5/1,461,128 · genomes 4/152,096 · 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
IL23R
Protein
p.Pro447=
Coding
c.1341T>C
MANE Select
NM_144701
dbSNP
rs747337602
Type
single nucleotide variant
Location
chr1:67258579 (GRCh38)
Gene constraint
LOEUF 0.739 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 68.76 · 4 PDB
Full IL23R 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/il23r-p-pro447 (accessed [today's date]).

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