Is DHDH p.Val67Leu (c.199G>C) pathogenic?

DHDH p.Val67Leu (c.199G>C) is classified Uncertain significance in DHDH (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-27). AlphaMissense: ambiguous (0.4596); Absent from gnomAD v4.1.

How common is DHDH p.Val67Leu (c.199G>C) in the general population?

DHDH p.Val67Leu (c.199G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DHDH p.Val67Leu (c.199G>C)?

AlphaMissense predicts ambiguous (score 0.4596) — an in-silico prediction, not a clinical call.

DHDH p.Val67Leu

c.199G>C · VCV4239992

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.4596 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

REVEL, SaProt · AlphaMissense no call

Computational evidence

Protein change
AlphaMissense	0.4596	ambiguous
REVEL	0.163	moderately benign-leaning
SaProt	LLR -9.76	tolerated
⇒ REVEL and SaProt both call this tolerated; AlphaMissense makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 6.6	phastCons 1
Regional constraint	o/e 0.95	unconstrained · MANE · 11 kb · p 0.26 · regional, not allelic
Overall
CADD	23.3	PHRED · no single calibrated threshold — expert panels disagree

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: DHDH
Protein: p.Val67Leu
Coding: c.199G>C
MANE Select: NM_014475
Type: single nucleotide variant
Location: chr19:48935108 (GRCh38)
Gene constraint: LOEUF 1.275 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 98.19

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

Similar variants

DHDH p.Ala111Ser Uncertain significance ★ ⚠ same type
DHDH p.Ala134Thr Uncertain significance ★ ⚠ same type
DHDH p.Ala173Thr Uncertain significance ★ ⚠ same type
DHDH p.Ala70Ser Uncertain significance ★ ⚠ same type
DHDH p.Ala89Val Uncertain significance ★ ⚠ same type
DHDH p.Arg107His Uncertain significance ★ ⚠ same type
DHDH p.Arg107Ser Uncertain significance ★ ⚠ same type
DHDH p.Arg127His 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/dhdh-p-val67leu (accessed [today's date]).

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