Is PITX3 p.Pro223= (c.669C>T) pathogenic?

PITX3 p.Pro223= (c.669C>T) is classified Likely benign in PITX3 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-12-30). Very rare (popmax 0.00136%, sas).

How common is PITX3 p.Pro223= (c.669C>T) in the general population?

PITX3 p.Pro223= (c.669C>T) is very rare (popmax 0.00136%, sas) (gnomAD).

PITX3 p.Pro223=

c.669C>T · rs1021921907 · VCV2968291

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00136%, sas)

⚠ Built without this gene's context — gene constraint and dosage, protein structure, pathways, panels and related-variant links were not looked up for this page. why

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not looked up on this page · why
Constraint at this position
Conservation	phyloP -4.6	GERP -3
Overall
CADD	1.247	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00136% South Asian · 1/73,640 alleles

Overall 6.74e-05% 1/1,483,120 alleles · very rare exomes 1/1,331,392 · genomes 0/151,728 · 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: PITX3
Protein: p.Pro223=
Coding: c.669C>T
MANE Select: NM_005029
dbSNP: rs1021921907
Type: single nucleotide variant
Location: chr10:102230754 (GRCh38)

Full PITX3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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/pitx3-p-pro223 (accessed [today's date]).

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