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AP1S1 p.Thr23=

c.69T>G · rs775688954 · VCV2720494

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00502%, amr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.083moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -2.1GERP -3.8
Overall
CADD1.64PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00502% Admixed American · 3/59,726 alleles
Filtering AF 0.00133% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00067%
Overall 0.000682% 11/1,612,012 alleles · very rare
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.00502% 19,909
Remaining individualsnot grpmax-eligible 0.00481% 20,807
European (non-Finnish) 0.000424% 235,847

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
AP1S1
Protein
p.Thr23=
Coding
c.69T>G
MANE Select
NM_001283
dbSNP
rs775688954
Type
single nucleotide variant
Location
chr7:101156659 (GRCh38)
Gene constraint
LOEUF 1.078 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 94.83 · 1 PDB
Full AP1S1 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/ap1s1-p-thr23 (accessed [today's date]).

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