R587=
SynonymousSilentLikely benignTransmembrane · predictedSilent — Silent — no amino-acid change
Interactive 3D Structure
AlphaFold wild-type wolframin · the variant site near residue 587 (Transmembrane helix 9) is highlighted.
Variant Assessment
Therapeutic Implication · Silent
Clinical Evidence
Observed at very low frequency in gnomAD.
ClinVar classifies this variant as Benign/Likely benign 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
- 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 African / African American: AF 0.015% (11 of 74,956 alleles), 21.5x 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 group | Allele freq. | AC / AN | Hom. | Carrier est. |
|---|---|---|---|---|
| African / African American | 0.015% | 11 / 74,956 | 0 | ~1 in 3410 |
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.
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Full Variant Card
R587= — WFS1 Molecular Atlas Card
Variant type: Synonymous (silent) Codon: position 587 (Arginine, R) — amino acid unchanged Domain context: Transmembrane helix 9
Schema category: Silent — Silent — no amino-acid change
No amino-acid change (R587 is unchanged): the codon is altered but the protein sequence is identical to wild-type. No structural, stability or AlphaMissense effect applies. Synonymous variants are typically benign unless they affect splicing or regulatory elements; this one is not adjacent to an exon boundary.
Clinical evidence
Inheritance and scope
Benign/Likely benign — for Wolfram syndrome (classic) (autosomal recessive, OMIM 222300)
ClinVar classifies this variant as Benign/Likely benign 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.
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: Wolfram syndrome 1
- cDNA change: c.1761G>C
- ClinVar accession: VCV000383526
- Last evaluated: 2024/12/05 00:00
- Submissions: 1
Card generated by wolfram-atlas-batch (synonymous pipeline) on 2026-06-08T02:54:56.375045Z.
WFS1: UniProt O76024, AlphaFold v6. Synonymous variants carry no protein-structural effect.