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SLC18A3 p.Phe223=

c.669C>T · rs763788617 · VCV1918732

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0112%, eas)

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 -1.7GERP -2.5
Overall
CADD10.5PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0112% East Asian · 5/44,784 alleles
Filtering AF 0.00437% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00309%
Overall 0.000751% 12/1,597,896 alleles · ultra-rare
Ancestry group Frequency 1 in
East Asiangrpmax 0.0112% 8,957
African / African-American 0.00935% 10,699

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
SLC18A3
Protein
p.Phe223=
Coding
c.669C>T
MANE Select
NM_020549 · reported on NM_003055
dbSNP
rs763788617
Type
single nucleotide variant
Location
chr10:49611409 (GRCh38)
Full SLC18A3 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/slc18a3-p-phe223 (accessed [today's date]).

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