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T590M

Category 4 — Stable Fold, Function DisruptedConflictingTransmembrane · predictedEditorial
ThreonineMethionine at position 590 · TM9 (589-609), helical transmembrane · WFS1 (Wolframin)

Thr→Met p590 TM9 AM=0.06 ddg=+0.09 pLDDT=73. ClinVar Conflicting evidence. Atlas mechanism: see structural analysis.

Interactive 3D Structure

Wild-type reference
Wild-type T590 — hydrogen bond to R587
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DynaMut2 mutant · T590M
Mutant M590 — hydrogen bond contact to R587 lost
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Bond changes · DynaMut2 interaction analysis

1 lost1 gained4 preserved
Interaction typeWild-type partnerMutant partnerStatus
Hydrogen bondA586A586Preserved
Hydrogen bondR587Lost
Polar contactA586A586Preserved
Polar contactR587R587Preserved
Polar contactW588W588Preserved
Polar contactL592Gained

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
0.09kcal/mol
Stabilising — mild
AlphaMissense
0.063
LBen
AlphaFold pLDDT
73
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 0.0037%
cDNA changec.1769C>T
ClinVar accessionVCV000505398
Last evaluated2023/04/17 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 0.0037% · 60 / 1,614,012 alleles
Homozygotes
0
Highest-frequency population
East Asian · AF 0.0089%

Highest in East Asian: AF 0.0089% (4 of 44,886 alleles), 2.4x 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.
East Asian0.0089%4 / 44,8860~1 in 5610
Admixed American0.0067%4 / 60,0080~1 in 7500
European (non-Finnish)0.0039%46 / 1,180,0560~1 in 12830
Ashkenazi Jewish · under-sampled0.0034%1 / 29,6040
South Asian0.0033%3 / 91,0860~1 in 15180
Remaining individuals · under-sampled0.0016%1 / 62,4880
Finnish · under-sampled0.0016%1 / 63,9360

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: SER591 (2.5 Å), PHE589 (2.5 Å — TM9 start), ARG587 (3.8 Å — R587W/Q!). TM9 cluster + loop boundary. The Atlas's neighbor extraction surfaces this variant's contacts and connects them to the broader multi-variant target landscape.

Amino-acid chemistry
polar→hydrophobic
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 cluster + R587 loop boundary.
Therapeutic Strategy Handoff · prediction

Feed this card to Wolfram Intelligence

Download the T590M 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 T590M PDF card ↓Strategies are AI-generated predictions, not validated therapeutics.

UniProt Domain Annotation

Chain1890 · Wolframin
Transmembrane589609 · Helical