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PPM1F p.Ala301=

c.903G>T · rs559570000 · VCV1974020

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00129%, 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 -0.38GERP -4.1, phastCons 0.086
Overall
CADD3.097PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00129% European (non-Finnish) · 15/1,163,066 alleles
Filtering AF 0.000774% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000614%
Overall 0.000944% 15/1,589,100 alleles · very rare

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
PPM1F
Protein
p.Ala301=
Coding
c.903G>T
MANE Select
NM_014634
dbSNP
rs559570000
Type
single nucleotide variant
Location
chr22:21925651 (GRCh38)
Gene constraint
LOEUF 0.864 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 87.70
Residue 301
the ppm-type phosphatase domain
Full PPM1F 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/ppm1f-p-ala301 (accessed [today's date]).

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