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VAMP2 p.Cys103=

c.309C>T · rs755036825 · VCV3026123

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00907%, 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 8.6GERP 0.97, phastCons 1
Overall
CADD15.75PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00907% European (non-Finnish) · 107/1,180,018 alleles
Filtering AF 0.00766% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00708%
Overall 0.00719% 116/1,614,012 alleles · very rare exomes 106/1,461,846 · genomes 10/152,166 · joint denominator
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00907% 11,028
African / African-American 0.00667% 14,983
East Asian 0.00446% 22,445
South Asian 0.0022% 45,541

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
VAMP2
Protein
p.Cys103=
Coding
c.309C>T
MANE Select
NM_014232
dbSNP
rs755036825
Type
single nucleotide variant
Location
chr17:8161498 (GRCh38)
Gene constraint
LOEUF 0.176 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 79.34 · 7 PDB
Residue 103
an α-helix; the 'required for interaction with sept8' region
Full VAMP2 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/vamp2-p-cys103 (accessed [today's date]).

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