Is DPP9 p.Ser578Cys (c.1732A>T) pathogenic?

DPP9 p.Ser578Cys (c.1732A>T) is classified Uncertain significance in DPP9 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-02-07). AlphaMissense: likely benign (0.0822); Absent from gnomAD v4.1.

How common is DPP9 p.Ser578Cys (c.1732A>T) in the general population?

DPP9 p.Ser578Cys (c.1732A>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DPP9 p.Ser578Cys (c.1732A>T)?

AlphaMissense predicts likely benign (score 0.0822) — an in-silico prediction, not a clinical call.

DPP9 p.Ser578Cys

c.1732A>T · rs1375584889 · VCV2482078

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0822 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.0822	likely benign
REVEL	0.324	indeterminate
SaProt	LLR -8.96	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.8	GERP -0.11, phastCons 1
Regional constraint	o/e 0.88	unconstrained · MANE · 34 kb · p 0.00027 · regional, not allelic
Overall
CADD	26.5	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM S549C vs ClinVar S578C) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: DPP9
Protein: p.Ser578Cys
Coding: c.1732A>T
MANE Select: NM_139159
dbSNP: rs1375584889
Type: single nucleotide variant
Location: chr19:4689587 (GRCh38)
Gene constraint: LOEUF 0.647 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 92.96 · 14 PDB
Residue 578: a UniProt-annotated variant site (in hatis; likely pathogenic); a β-strand

Full DPP9 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

DPP9 p.Asp310Asn Uncertain significance ★★ ⚠ same type
DPP9 p.Lys509Arg Uncertain significance ★★ ⚠ same type
DPP9 p.Thr301Met Uncertain significance ★★ ⚠ same type
DPP9 p.Ala184Gly Benign/Likely benign ★★ same type
DPP9 p.Glu566Lys Benign/Likely benign ★★ ⚠ same type
DPP9 p.His83= Benign/Likely benign ★★ same type
DPP9 p.Pro322= Benign ★★ same type
DPP9 p.Ser236Asn Likely benign ★★ same type

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/dpp9-p-ser578cys (accessed [today's date]).

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