Is DSPP p.Asn781fs (c.2343del) pathogenic?

DSPP p.Asn781fs (c.2343del) is classified Likely pathogenic in DSPP (ClinVar, Single submitter, 1 submitter; last evaluated 2020-07-17). Associated with dentinogenesis imperfecta type 2.

What condition is associated with DSPP p.Asn781fs (c.2343del)?

DSPP p.Asn781fs (c.2343del) is associated with dentinogenesis imperfecta type 2 (ClinVar).

How is Dentinogenesis imperfecta inherited?

Typically Autosomal dominant (Orphanet). A genetic counselor can assess individual risk for a family.

DSPP p.Asn781fs

c.2343del · VCV4076116

Likely pathogenic Single submitter

Classification

Likely pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

frameshift

predicted LoF

gnomAD v4.1

Rare

Conditions

dentinogenesis imperfecta type 2

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	frameshift	predicted loss-of-function; NMD-escape possible for C-terminal truncations
Splicing
SpliceAI	—	not looked up on this page · why
Constraint at this position
Conservation	phyloP 0.3	GERP -0.49
Region caveats
Repeat context	tandem	GATAGCAGT simple repeat · ambiguous alignment · confidence, not pathogenicity

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Variant & gene context

Gene: DSPP
Protein: p.Asn781fs
Coding: c.2343del
Type: Deletion
Location: chr4:87615005 (GRCh38)

Full DSPP gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

dentinogenesis imperfecta type 2 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Dentinogenesis imperfecta (Orphanet):

Inheritance: Autosomal dominant
Onset: Childhood
Prevalence: 1-5 / 10 000 (Europe)

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-asn781fs (accessed [today's date]).

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