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PPP3CA p.Thr304=

c.912A>G · rs1231565947 · VCV2073473

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 8.85e-05%, nfe)

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 -0.84GERP -4.3, phastCons 0.014
Overall
CADD5.102PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 8.85e-05% European (non-Finnish) · 1/1,129,998 alleles
Overall 6.51e-05% 1/1,535,932 alleles · very rare exomes 1/1,383,712 · genomes 0/152,220 · 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
PPP3CA
Protein
p.Thr304=
Coding
c.912A>G
MANE Select
NM_000944
dbSNP
rs1231565947
Type
single nucleotide variant
Location
chr4:101080575 (GRCh38)
Gene constraint
LOEUF 0.243 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 86.24 · 21 PDB
Residue 304
the 'catalytic' region; a β-strand
Full PPP3CA 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/ppp3ca-p-thr304 (accessed [today's date]).

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