Is DPH2 p.Ala345Thr (c.1033G>A) pathogenic?

DPH2 p.Ala345Thr (c.1033G>A) is classified Uncertain significance in DPH2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-09-02). AlphaMissense: likely benign (0.0727); Absent from gnomAD v4.1.

How common is DPH2 p.Ala345Thr (c.1033G>A) in the general population?

DPH2 p.Ala345Thr (c.1033G>A) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DPH2 p.Ala345Thr (c.1033G>A)?

AlphaMissense predicts likely benign (score 0.0727) — an in-silico prediction, not a clinical call.

DPH2 p.Ala345Thr

c.1033G>A · VCV3504884

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0727 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0727	likely benign
REVEL	0.024	moderately benign-leaning
SaProt	LLR -5.99	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · G>T here scores Δ0.36 · evaluated, not missing
Constraint at this position
Conservation	phyloP 0.73	GERP -3.2, phastCons 0.009
Regional constraint	o/e 0.97	unconstrained · MANE · 603 bp · p 0.64 · regional, not allelic
Overall
CADD	12.92	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.

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: DPH2
Protein: p.Ala345Thr
Coding: c.1033G>A
MANE Select: NM_001384
Type: single nucleotide variant
Location: chr1:43971935 (GRCh38)
Gene constraint: LOEUF 0.914 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 83.60
Residue 345: a UniProt-annotated variant site (in dedssh2; severely impairs diphthamide modification of elongation factor 2)

Full DPH2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

DPH2 p.Arg201His Uncertain significance ★★ ⚠ same type
DPH2 p.Arg477Ter Likely pathogenic ★ same type
DPH2 p.Ser75Ter Likely pathogenic ★ same type
DPH2 p.Ala310Val Uncertain significance ★ ⚠ same type
DPH2 p.Ala448Thr Uncertain significance ★ ⚠ same type
DPH2 p.Arg125His Uncertain significance ★ ⚠ same type
DPH2 p.Arg169Cys Uncertain significance ★ ⚠ same type
DPH2 p.Arg171Gln Uncertain significance ★ ⚠ 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/dph2-p-ala345thr (accessed [today's date]).

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