I720V
AlphaMissense: likely benign (0.07)Likely benignLumenal · predictedσ-1 candidateInteractive 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
Observed in the general population.
ClinVar classifies this variant as Benign/Likely benign for WFS1-related diabetes (autosomal dominant); WFS1-related spectrum (unresolved mode) (dominant or recessive); Cataract 41 (autosomal dominant, OMIM 116400); Wolfram syndrome (classic) (autosomal recessive, OMIM 222300); Nonsyndromic hearing loss (DFNA6/14/38) (autosomal dominant, OMIM 600965); Wolfram-like syndrome (autosomal dominant, OMIM 614296). ClinVar records this under a WFS1-spectrum label that spans both disease families — recessive Wolfram syndrome (biallelic) and the dominant WFS1-related disorders. The label does not resolve which applies, and it is not a severity statement.
- WFS1-related diabetesautosomal dominantsubmitted as: Monogenic diabetes; Diabetes mellitus; Type 2 diabetes mellitus
- WFS1-related spectrum (unresolved mode)dominant or recessivesubmitted as: WFS1-Related Spectrum Disorders
- Cataract 41autosomal dominant · OMIM 116400submitted as: Cataract 41
- Wolfram syndrome (classic)autosomal recessive · OMIM 222300submitted as: Wolfram syndrome 1
- Nonsyndromic hearing loss (DFNA6/14/38)autosomal dominant · OMIM 600965submitted as: Autosomal dominant nonsyndromic hearing loss 6
- Wolfram-like syndromeautosomal dominant · OMIM 614296submitted as: Wolfram-like syndrome
- 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.
Highest in East Asian: AF 6.91% (3101 of 44,864 alleles), 18.8x the global figure. The global AF describes the general population, not the at-risk group.
149 homozygotes reported in gnomAD v4 (118 East Asian; 19 Finnish; 5 Remaining individuals; 3 South Asian; 1 Middle Eastern; 3 European (non-Finnish)). gnomAD excludes individuals with severe pediatric disease, so homozygotes in this dataset argue against a fully penetrant severe recessive phenotype and belong in the clinical picture. This is interpretive signal, not a classification.
| Ancestry group | Allele freq. | AC / AN | Hom. | Carrier est. |
|---|---|---|---|---|
| East Asian | 6.91% | 3,101 / 44,864 | 118 | ~1 in 7 |
| Finnish | 2.20% | 1,385 / 62,846 | 19 | ~1 in 23 |
| Remaining individuals | 0.589% | 368 / 62,484 | 5 | ~1 in 85 |
| South Asian | 0.280% | 255 / 91,072 | 3 | ~1 in 180 |
| Ashkenazi Jewish | 0.105% | 31 / 29,592 | 0 | ~1 in 480 |
| Middle Eastern | 0.099% | 6 / 6,062 | 1 | ~1 in 510 |
| European (non-Finnish) | 0.065% | 770 / 1,179,942 | 3 | ~1 in 770 |
| Admixed American | 0.018% | 11 / 60,002 | 0 | ~1 in 2730 |
| African / African American | 0.0093% | 7 / 75,060 | 0 | ~1 in 5360 |
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
I720V — WFS1 Molecular Atlas Card
Variant type: Missense Substitution: Isoleucine (I) → Valine (V) at position 720 Domain context: C-terminal ER-lumenal (calcium binding, calmodulin, chaperone)
AlphaMissense
- Pathogenicity score: 0.0687
- Class: likely benign
AlphaFold confidence
- pLDDT at residue 720: 84.69
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 WFS1-related diabetes (autosomal dominant); WFS1-related spectrum (unresolved mode) (dominant or recessive); Cataract 41 (autosomal dominant, OMIM 116400); Wolfram syndrome (classic) (autosomal recessive, OMIM 222300); Nonsyndromic hearing loss (DFNA6/14/38) (autosomal dominant, OMIM 600965); Wolfram-like syndrome (autosomal dominant, OMIM 614296)
ClinVar classifies this variant as Benign/Likely benign for WFS1-related diabetes (autosomal dominant); WFS1-related spectrum (unresolved mode) (dominant or recessive); Cataract 41 (autosomal dominant, OMIM 116400); Wolfram syndrome (classic) (autosomal recessive, OMIM 222300); Nonsyndromic hearing loss (DFNA6/14/38) (autosomal dominant, OMIM 600965); Wolfram-like syndrome (autosomal dominant, OMIM 614296). ClinVar records this under a WFS1-spectrum label that spans both disease families — recessive Wolfram syndrome (biallelic) and the dominant WFS1-related disorders. The label does not resolve which applies, and it is not a severity statement.
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: Monogenic diabetes; Diabetes mellitus; WFS1-Related Spectrum Disorders; Cataract 41; Wolfram syndrome 1; Autosomal dominant nonsyndromic hearing loss 6; Type 2 diabetes mellitus; Wolfram-like syndrome
- cDNA change: c.2158A>G
- ClinVar accession: VCV000137919
- Last evaluated: 2026/02/01 00:00
- Submissions: 1
Card generated by wolfram-atlas-batch (missense AlphaMissense mint) on 2026-06-08T02:27:33.725652Z.
AlphaMissense (Cheng et al. 2023) · AlphaFold model v6 · UniProt O76024.
Feed this card to Wolfram Intelligence
Download the I720V 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.