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APBA2 p.Thr741=

c.2223G>A · rs761106891 · VCV3046555

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.214%, mid)
Conditions
1
APBA2-related disorder

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
PangolinΔ0.46gain · loss 0.00 · not in the SpliceAI release · independent
Constraint at this position
ConservationphyloP -5.9GERP -3.7
Overall
CADD0.727PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.214% Middle Eastern · 13/6,080 alleles
Filtering AF 0.126% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.1%
Overall 0.00769% 124/1,613,148 alleles · rare
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.214% 468
South Asian 0.0176% 5,692
European (non-Finnish) 0.0072% 13,882
Remaining individualsnot grpmax-eligible 0.0064% 15,616
Admixed American 0.005% 19,997
African / African-American 0.00401% 24,967

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
APBA2
Protein
p.Thr741=
Coding
c.2223G>A
MANE Select
NM_001353788
dbSNP
rs761106891
Type
single nucleotide variant
Location
chr15:29117106 (GRCh38)
Gene constraint
LOEUF 0.524 · pLI 0.78 (gnomAD)
Structure
AlphaFold pLDDT 59.74
Full APBA2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

APBA2-related disorder

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/apba2-p-thr741 (accessed [today's date]).

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