Is DSPP p.Asp1203= (c.3609T>C) pathogenic?

DSPP p.Asp1203= (c.3609T>C) is classified Benign/Likely benign in DSPP (ClinVar, Multiple submitters, 3 submitters; last evaluated 2024-11-26). Common (popmax 12.2%, afr) — too common for a highly-penetrant pathogenic allele.

DSPP p.Asp1203=

Q: How common is DSPP p.Asp1203= (c.3609T>C) in the general population?

DSPP p.Asp1203= (c.3609T>C) is common (popmax 12.2%, afr) — too common for a highly-penetrant pathogenic allele (gnomAD).

c.3609T>C · rs115597449 · VCV1224932

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

gnomAD v4.1

Common

common (popmax 12.2%, afr) — too common for a highly-penetrant pathogenic allele

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
Conservation	phyloP -20	GERP -3.1
Overall
CADD	0.415	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 12.2% African / African-American · 4,392/36,072 alleles

Filtering AF 11.9% ClinGen BA1/BS1 input FAF95, joint · FAF99 11.8%

Overall 1.44% 18,482/1,285,884 alleles · common

Ancestry group	Frequency	1 in
African / African-Americangrpmax	12.2%	8
Finnishnot grpmax-eligible	4.53%	22
Ashkenazi Jewishnot grpmax-eligible	3.32%	30
Middle Eastern	2.78%	36
Remaining individualsnot grpmax-eligible	2.15%	47
Admixed American	1.83%	55
European (non-Finnish)	0.887%	113
South Asian	0.851%	117
East Asian	0.442%	226

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.Asp1203=
Coding: c.3609T>C
dbSNP: rs115597449
Type: single nucleotide variant
Location: chr4:87616271 (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-asp1203 (accessed [today's date]).

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