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c.315+12G>A

SpliceS3Likely benignCytoplasmic · predicted
Splice variant · splice site near at position 105 · N-terminal cytoplasmic (intrinsically disordered) · WFS1 (Wolframin)

S3 — Minimal predicted splicing impact (SpliceAI ΔS 0.00)

Interactive 3D Structure

Interactive structure
rotate · zoom · variant + 5 Å neighbors
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AlphaFold wild-type wolframin · the variant site near residue 105 (N-terminal cytoplasmic (intrinsically disordered)) is highlighted.

Variant Assessment

Variant type
Splice
Schema
S3
Minimal predicted splicing impact (SpliceAI ΔS 0.00)
Domain
N-terminal cytoplasmic (intrinsically disordered)
Status
—

Therapeutic Implication · S3

SpliceAI predicts little splicing disruption at this donor (5') site (max ΔS 0.00 < 0.2; acceptor-gain 0.00, acceptor-loss 0.00, donor-gain 0.00, donor-loss 0.00). The variant may be tolerated or act through a weak/again-tissue-specific mechanism; wet-lab RNA validation is the arbiter before any therapeutic call.

Clinical Evidence

ClinVar classificationBenign/Likely benign
Review statuscriteria provided, multiple submitters, no conflicts
Associated conditionsWolfram syndrome 1
Population frequency (gnomAD v4)Ultra-rare · AF 0.0035%
cDNA changec.315+12G>A
ClinVar variantNM_006005.3(WFS1):c.315+12G>A
ClinVar accessionVCV000668499
Last evaluated2025/12/22 00:00

Observed at very low frequency in gnomAD.

Classified for2★ documented assertion

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.

Population frequency
Global (all ancestries)
AF 0.0035% · 55 / 1,553,394 alleles
Homozygotes
0
Highest-frequency population
African / African American · AF 0.022%

Highest in African / African American: AF 0.022% (16 of 73,488 alleles), 6.1x 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.
African / African American0.022%16 / 73,4880~1 in 2300
Middle Eastern · under-sampled0.018%1 / 5,5160—
Remaining individuals0.010%6 / 60,1080~1 in 5010
European (non-Finnish)0.0025%29 / 1,147,6920~1 in 19790
East Asian · under-sampled0.0024%1 / 41,8060—
Admixed American · under-sampled0.0020%1 / 51,0480—
South Asian · under-sampled0.0012%1 / 84,3180—

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.

Therapeutic Strategy Handoff · prediction

Feed this card to Wolfram Intelligence

Download the c.315+12G>A card below and upload it to Wolfram Intelligence to generate therapeutic-strategy proposals matched to this S3 splice variant and its domain context.

Download c.315+12G>A PDF card ↓or markdown ↓

Full Variant Card

c.315+12G_A — WFS1 Molecular Atlas Card

Variant type: Splice site Boundary: donor (5' splice site) · intronic offset +12 Nearest protein position: ~105 (N-terminal cytoplasmic (intrinsically disordered))

Schema category: S3 — Minimal predicted splicing impact (SpliceAI ΔS 0.00)

SpliceAI predicts little splicing disruption at this donor (5') site (max ΔS 0.00 < 0.2; acceptor-gain 0.00, acceptor-loss 0.00, donor-gain 0.00, donor-loss 0.00). The variant may be tolerated or act through a weak/again-tissue-specific mechanism; wet-lab RNA validation is the arbiter before any therapeutic call.

Splice prediction

  • Affected site: donor (5' splice site), extended splice region
  • SpliceAI delta scores (GRCh38 chr4:6287187 G>A):
    • acceptor gain 0.00 · acceptor loss 0.00
    • donor gain 0.00 · donor loss 0.00
  • Predicted outcome: Minimal predicted splicing impact (SpliceAI ΔS 0.00)

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.315+12G>A
  • ClinVar accession: VCV000668499
  • Last evaluated: 2025/12/22 00:00
  • Submissions: 1

Card generated by wolfram-atlas-batch (splice pipeline) on 2026-06-08T07:49:53.818103Z. Schema: reference/card_schema_extension.md (S1–S3). WFS1: UniProt O76024, AlphaFold v6.