I421V
AlphaMissense: likely benign (0.06)Likely benignTransmembrane · predictedInteractive 3D Structure
Computational Predictions
AlphaMissense + AlphaFold card. This variant is mapped from AlphaMissense pathogenicity and AlphaFold confidence. The DynaMut2 ΔΔG stability prediction and the wild-type/mutant structural comparison (dual-pane + bond network) are computed per-variant and backfill here — they require a DynaMut2 submission, unlike the precomputed AlphaMissense score.
Clinical Evidence
Not observed in ~730k individuals — consistent with a rare allele (ACMG PM2_supporting).
ClinVar classifies this variant as Benign/Likely benign for Wolfram syndrome (classic) (autosomal recessive, OMIM 222300). Classic Wolfram syndrome is recessive: a single copy does not produce it, and this classification says nothing about a carrier's own risk.
- Wolfram syndrome (classic)autosomal recessive · OMIM 222300submitted as: Wolfram syndrome 1
- Phenotype scope is interpretation of submitted records. The computed values on this card (AlphaMissense, DynaMut2 ΔΔG, pLDDT) are measurements of the model, not of a patient.
- Presentation cannot be generalised from neighbouring variants: one nucleotide over can present very differently. Structural similarity supports a mechanistic hypothesis, never a phenotype claim.
Review status: 2★ multiple submitters, no conflicts. ClinVar "conditions" is the union of all submissions; 0–1★ entries are submitted conditions, not documented phenotypes.
No population breakdown — the variant is absent from gnomAD v4, so no ancestry group has an observed frequency.
No homozygotes — the variant is absent from gnomAD v4 altogether.
Source: gnomAD r4, retrieved 2026-08-21. Values are allele frequencies. The carrier estimate is derived from the allele frequency (Hardy-Weinberg, ~2·AF) and is an approximation, not a published figure — where a published carrier frequency exists it outranks this column and is cited on the card.
Full Variant Card
I421V — WFS1 Molecular Atlas Card
Variant type: Missense Substitution: Isoleucine (I) → Valine (V) at position 421 Domain context: Transmembrane helix 4
AlphaMissense
- Pathogenicity score: 0.0581
- Class: likely benign
AlphaFold confidence
- pLDDT at residue 421: 84.5
DynaMut2 ΔΔG: not yet computed for this variant — AlphaMissense + AlphaFold confidence shown above. Stability ΔΔG and the wild-type/mutant structural comparison backfill behind this note.
Clinical evidence
Inheritance and scope
Benign/Likely benign — for Wolfram syndrome (classic) (autosomal recessive, OMIM 222300)
ClinVar classifies this variant as Benign/Likely benign for Wolfram syndrome (classic) (autosomal recessive, OMIM 222300). Classic Wolfram syndrome is recessive: a single copy does not produce it, and this classification says nothing about a carrier's own risk.
Phenotype scope is interpretation of submitted records. The computed values on this card (AlphaMissense, DynaMut2 ΔΔG, pLDDT) are measurements of the model, not of a patient. Presentation cannot be generalised from neighbouring variants: one nucleotide over can present very differently. Structural similarity supports a mechanistic hypothesis, never a phenotype claim.
- Classification: Benign/Likely benign
- Review status: criteria provided, multiple submitters, no conflicts
- Associated conditions: Wolfram syndrome 1
- cDNA change: c.1261A>G
- ClinVar accession: VCV000166585
- Last evaluated: 2014/10/19 00:00
- Submissions: 1
Card generated by wolfram-atlas-batch (missense AlphaMissense mint) on 2026-06-08T02:27:33.524238Z.
AlphaMissense (Cheng et al. 2023) · AlphaFold model v6 · UniProt O76024.
Feed this card to Wolfram Intelligence
Download the I421V PDF below and upload it to Wolfram Intelligence to generate therapeutic-strategy proposals — guanidinium mimetics, sigma-1 agonist docking, NAC thiol-capping. NAC is already on the bench-testing list.