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V871M

Category 4 — Stable Fold, Function DisruptedConflictingLumenal · predictedσ-1 candidateEditorial
ValineMethionine at position 871 · TM11 (870-890), helical transmembrane · WFS1 (Wolframin)

Valine → Methionine at position 871 inside TM11. ClinVar Conflicting including WFS1 spectrum + monogenic diabetes. AlphaMissense 0.14 (below threshold) — AM under-call. DynaMut2 ΔΔG -0.15. Same position as V871G.

Interactive 3D Structure

Wild-type reference
Wild-type V871 — hydrogen bond to V875
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DynaMut2 mutant · V871M
Mutant M871 — hydrogen bond to W867 lost (5 contacts lost)
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Bond changes · DynaMut2 interaction analysis

5 lost4 gained6 preserved
Interaction typeWild-type partnerMutant partnerStatus
Hydrogen bondW867W867Preserved
Hydrogen bondR868Gained
Hydrogen bondA874A874Preserved
Hydrogen bondV875V875Preserved
Polar contactW867W867Preserved
Polar contactR868Gained
Polar contactG873Lost
Polar contactA874A874Preserved
Polar contactV875V875Preserved
Van der WaalsI421Gained
Van der WaalsW867Lost
Van der WaalsG873Lost
Van der WaalsA874Lost
HydrophobicI421Gained
HydrophobicV875Lost

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
-0.15kcal/mol
Destabilising — mild
AlphaMissense
0.141
LBen
AlphaFold pLDDT
74
model confidence
Schema
Cat 4
Category 4 — Stable Fold, Function Disrupted

Clinical Evidence

ClinVar classificationConflicting classifications of pathogenicity
Review statuscriteria provided, conflicting classifications
Associated conditionsWFS1-Related Spectrum Disorders; Monogenic diabetes
InheritanceMulti-phenotype.
Population frequency (gnomAD v4)Low frequency · AF 0.993%
cDNA changec.2611G>A
ClinVar accessionVCV000095325
Last evaluated2026/03/01 00:00

Observed in the general population.

Structural Context

Position 871 same neighbors as V871G: HIS872 (2.5 Å), THR870 (2.5 Å), TRP867 (3.7 Å).

V871M conservative chemistry at the V871 position. AM 0.14 under-call; multi-phenotype confirms.

Amino-acid chemistry
Valine (V) → Methionine (M) — branched aliphatic replaced by flexible sulfur-containing hydrophobic.
Position in the protein
TM11 (residues 870–890) · position 871 (pLDDT 74). Same as V871G.

Druggability Assessment

Category 4 — Stable Fold, Function Disrupted (AM under-call). |ΔΔG| 0.15. AlphaMissense 0.14 below threshold but multi-phenotype confirms.

Mechanism: methionine chemistry shift at TM11 start. Therapeutic: same TM11 cluster.

Why this matters

V871M + V871G at same position — TM11 cluster continues to grow.
Therapeutic Strategy Handoff · prediction

Feed this card to Wolfram Intelligence

Download the V871M 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 V871M PDF card ↓Strategies are AI-generated predictions, not validated therapeutics.

UniProt Domain Annotation

Chain1890 · Wolframin
Transmembrane870890 · Helical
Natural variant871871 · in dbSNP:rs71532874