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ADSS1 p.Phe264=

c.792C>T · rs530966674 · VCV2164859

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00229%, sas)

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 -12GERP -3.9
Overall
CADD0.658PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00229% South Asian · 2/87,348 alleles
Filtering AF 0.00038% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000142%
Overall 0.00063% 10/1,588,320 alleles · very rare
Ancestry group Frequency 1 in
South Asiangrpmax 0.00229% 43,674
Remaining individualsnot grpmax-eligible 0.00163% 61,288
African / African-American 0.00135% 73,966
European (non-Finnish) 0.000514% 194,606

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
ADSS1
Protein
p.Phe264=
Coding
c.792C>T
MANE Select
NM_152328
dbSNP
rs530966674
Type
single nucleotide variant
Location
chr14:104741242 (GRCh38)
Gene constraint
LOEUF 1.245 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 93.10
Full ADSS1 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/adss1-p-phe264 (accessed [today's date]).

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