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AP3B2 p.Asn439=

c.1317C>T · rs2548708629 · VCV2785185

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000509%, nfe)

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
ConservationphyloP 3.9GERP 0.86, phastCons 1
Overall
CADD10.28PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000509% European (non-Finnish) · 6/1,178,642 alleles
Filtering AF 0.000183% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00012%
Overall 0.000411% 6/1,458,680 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
AP3B2
Protein
p.Asn439=
Coding
c.1317C>T
dbSNP
rs2548708629
Type
single nucleotide variant
Location
chr15:82677732 (GRCh38)
Full AP3B2 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/ap3b2-p-asn439 (accessed [today's date]).

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