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A43V

Category 5 — IDR ExclusionConflictingCytoplasmic · predictedEditorial
AlanineValine at position 43 · N-terminal intrinsically disordered region (1-86) · WFS1 (Wolframin)

Ala→Val p43 IDR AM=0.08 ddg=-1.11 pLDDT=28. ClinVar Conflicting evidence. Atlas mechanism: see structural analysis.

Interactive 3D Structure

Wild-type reference
Wild-type A43 — native residue, no strong sidechain contacts
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DynaMut2 mutant · A43V
Mutant V43 — energy-minimized; local contact network preserved
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Computational Predictions

DynaMut2 ΔΔG
-1.11kcal/mol
Destabilising — moderate
AlphaMissense
0.077
LBen
AlphaFold pLDDT
28
model confidence
Schema
Cat 5
Category 5 — IDR Exclusion
ΔΔG confidence: Reduced confidence · Cytoplasmic
  • pLDDT 28.23 below 70

The underlying AlphaFold model has pLDDT below 70 at this position, so the structure the stability calculation was run on is itself uncertain.

Do not rank this value against a variant from a different region on ΔΔG alone.

Clinical Evidence

ClinVar classificationConflicting classifications of pathogenicity
Review statuscriteria provided, conflicting classifications
Associated conditions(no specific conditions catalogued)
InheritanceConflicting ClinVar classifications.
Population frequency (gnomAD v4)Ultra-rare · AF 0.00042%
cDNA changec.128C>T
ClinVar accessionVCV000166568
Last evaluated2013/11/06 00:00

Observed at very low frequency in gnomAD.

Classified for1★ unverified submission

ClinVar classifies this variant as Conflicting classifications of pathogenicity 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
  • Submitters conflict on this classification (1★). Treat the conditions above as submitted, not as documented phenotypes.
  • 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: 1★ conflicting classifications. ClinVar "conditions" is the union of all submissions; 0–1★ entries are submitted conditions, not documented phenotypes.

Population frequency
Global (all ancestries)
AF 0.00042% · 6 / 1,430,170 alleles
Homozygotes
0
Highest-frequency population
European (non-Finnish) · AF 0.00055%

Highest in European (non-Finnish): AF 0.00055% (6 of 1,096,674 alleles), in line with the global figure.

No homozygotes reported in gnomAD v4. For a recessive allele this is expected and is not, on its own, evidence either way.

Ancestry groupAllele freq.AC / ANHom.Carrier est.
European (non-Finnish)0.00055%6 / 1,096,6740~1 in 91390

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.

Structural Context

Position analysis: ARG42 (2.5 Å — R42Q!), PRO44 (2.5 Å), PRO41 (4.9 Å). pLDDT 28 deep IDR. Substantial ΔΔG but untrustworthy. The Atlas's neighbor extraction surfaces this variant's contacts and connects them to the broader multi-variant target landscape.

Amino-acid chemistry
conservative volume increase
Position in the protein
N-terminal IDR

Druggability Assessment

Cat 5 IDR — see structural prose. AlphaMissense below threshold (AM under-call class) but mechanism is structurally identified. Therapeutic strategy: site-directed at contacts identified above, or wet-lab validation if pLDDT borderline/below 50.

Why this matters

Deep IDR adjacent to R42Q.
Therapeutic Strategy Handoff · prediction

Feed this card to Wolfram Intelligence

Download the A43V 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.

Download A43V PDF card ↓Strategies are AI-generated predictions, not validated therapeutics.

UniProt Domain Annotation

Chain1890 · Wolframin
Region1321 · Interaction with ATP6V1A
Region186 · Disordered