Is DPH1 p.Arg233His (c.698G>A) pathogenic?

DPH1 p.Arg233His (c.698G>A) is classified Uncertain significance in DPH1 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-05-29). AlphaMissense: ambiguous (0.3901); Very rare (popmax 0.00988%, sas); Associated with Inborn genetic diseases.

What condition is associated with DPH1 p.Arg233His (c.698G>A)?

DPH1 p.Arg233His (c.698G>A) is associated with Inborn genetic diseases (ClinVar).

How common is DPH1 p.Arg233His (c.698G>A) in the general population?

DPH1 p.Arg233His (c.698G>A) is very rare (popmax 0.00988%, sas) (gnomAD).

What do computational predictors say about DPH1 p.Arg233His (c.698G>A)?

AlphaMissense predicts ambiguous (score 0.3901) — an in-silico prediction, not a clinical call.

DPH1 p.Arg233His

c.698G>A · VCV3273581

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3901 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00988%, sas)

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.3901	ambiguous
REVEL	0.454	indeterminate
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8.6	GERP 1.3, phastCons 1
Regional constraint	o/e 1.07	unconstrained · MANE · 12 kb · p 0.074 · regional, not allelic
Overall
CADD	26.4	PHRED · no single calibrated threshold — expert panels disagree

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

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM R238H vs ClinVar R233H) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00988% South Asian · 9/91,076 alleles

Filtering AF 0.00514% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00375%

Overall 0.00161% 26/1,614,112 alleles · very rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.00988%	10,120
African / African-American	0.008%	12,506
European (non-Finnish)	0.000932%	107,274

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: DPH1
Protein: p.Arg233His
Coding: c.698G>A
MANE Select: NM_001383
Type: single nucleotide variant
Location: chr17:2039772 (GRCh38)
Gene constraint: LOEUF 1.321 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 87.00

Full DPH1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

DPH1 p.Arg144Trp Uncertain significance ★★ ⚠ same condition
DPH1 p.Ile241Phe Uncertain significance ★★ same condition
DPH1 p.Lys38Thr Likely benign ★★ same condition
DPH1 c.279-5C>T Uncertain significance ★ same condition
DPH1 c.558+4G>C Uncertain significance ★ same condition
DPH1 c.-12C>T Uncertain significance ★ ⚠ same condition
DPH1 c.-2T>A Uncertain significance ★ ⚠ same condition
DPH1 c.-6C>G Uncertain significance ★ ⚠ same condition

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/dph1-p-arg233his (accessed [today's date]).

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