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V601M

Category 4 — Stable Fold, Function DisruptedConflictingTransmembrane · predictedEditorial
ValineMethionine at position 601 · TM9 (589-609), helical transmembrane · WFS1 (Wolframin)

Val→Met p601 TM9 AM=0.07 ddg=-0.14 pLDDT=75. ClinVar Conflicting evidence. Atlas mechanism: see structural analysis.

Interactive 3D Structure

Wild-type reference
Wild-type V601 — hydrogen bond to I597
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DynaMut2 mutant · V601M
Mutant M601 — polar contact to I597 lost (3 contacts lost)
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Bond changes · DynaMut2 interaction analysis

3 lost2 gained5 preserved
Interaction typeWild-type partnerMutant partnerStatus
Hydrogen bondI597I597Preserved
Hydrogen bondA598Gained
Hydrogen bondS605S605Preserved
Polar contactI597I597Preserved
Polar contactA598Gained
Polar contactC604Lost
Polar contactS605S605Preserved
Van der WaalsI597I597Preserved
Van der WaalsS605Lost
HydrophobicI597Lost

Lost / gained / preserved interatomic contacts at the variant residue, from the DynaMut2 (Arpeggio) interaction analysis of the wild-type and energy-minimized mutant structures.

Computational Predictions

DynaMut2 ΔΔG
-0.14kcal/mol
Destabilising — mild
AlphaMissense
0.069
LBen
AlphaFold pLDDT
75
model confidence
Schema
Cat 4
Category 4 — Stable Fold, Function Disrupted
ΔΔG confidence: Reduced confidence · Transmembrane
  • transmembrane position; predictor benchmarked on soluble proteins

This variant sits in the transmembrane band. The stability value was computed with a predictor benchmarked on water-soluble proteins. Published benchmarks of ddG predictors on membrane proteins report correlation below 0.4. Treat the magnitude as unreliable and the sign as weak evidence only.

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 0.0032%
cDNA changec.1801G>A
ClinVar accessionVCV000215363
Last evaluated2025/11/19 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 0.0032% · 51 / 1,614,050 alleles
Homozygotes
0
Highest-frequency population
Ashkenazi Jewish · AF 0.064%

Highest in Ashkenazi Jewish: AF 0.064% (19 of 29,606 alleles), 20.3x the global figure. The global AF describes the general population, not the at-risk group.

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.
Ashkenazi Jewish0.064%19 / 29,6060~1 in 780
South Asian0.0066%6 / 91,0900~1 in 7590
African / African American0.0053%4 / 74,9560~1 in 9370
Admixed American0.0050%3 / 60,0100~1 in 10000
Remaining individuals0.0048%3 / 62,4840~1 in 10410
East Asian0.0045%2 / 44,8760~1 in 11220
European (non-Finnish)0.0012%14 / 1,180,0340~1 in 42140

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: ALA602 (2.5 Å), THR600 (2.5 Å), ILE597 (3.8 Å — A598T region). TM9 cluster. The Atlas's neighbor extraction surfaces this variant's contacts and connects them to the broader multi-variant target landscape.

Amino-acid chemistry
methionine chemistry
Position in the protein
TM9 (589-609)

Druggability Assessment

Cat 4 — 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

TM9 multi-variant cluster.
Therapeutic Strategy Handoff · prediction

Feed this card to Wolfram Intelligence

Download the V601M 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 V601M PDF card ↓Strategies are AI-generated predictions, not validated therapeutics.

UniProt Domain Annotation

Chain1890 · Wolframin
Transmembrane589609 · Helical