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DSPP p.Ser1109=

c.3327T>C · rs765088892 · VCV1221801

Benign Multiple submitters
Classification
Benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
low-frequency (popmax 4.39%, 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 -4.4GERP -1.8
Overall
CADD1.088PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 4.39% East Asian · 622/14,166 alleles
Filtering AF 4.11% ClinGen BA1/BS1 input FAF95, joint · FAF99 3.99%
Overall 0.931% 4,445/477,388 alleles · low-frequency
Ancestry group Frequency 1 in
East Asiangrpmax 4.39% 23
African / African-American 1.77% 57
Finnishnot grpmax-eligible 1.55% 65
Admixed American 1.16% 87
Remaining individualsnot grpmax-eligible 1.05% 95
European (non-Finnish) 0.756% 132
Ashkenazi Jewishnot grpmax-eligible 0.696% 144
Middle Eastern 0.579% 173
South Asian 0.427% 234

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
DSPP
Protein
p.Ser1109=
Coding
c.3327T>C
dbSNP
rs765088892
Type
single nucleotide variant
Location
chr4:87615989 (GRCh38)
Full DSPP 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/dspp-p-ser1109 (accessed [today's date]).

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