FAM20C — 554 ClinVar variants

All ClinVar germline FAM20C variants across every classification, each assembled from ClinVar, gnomAD, AlphaMissense, conservation and more. 173 flagged for review →

19 Pathogenic · 1 Pathogenic/Likely pathogenic · 7 Likely pathogenic · 16 Conflicting · 81 Benign · 19 Benign/Likely benign · 221 Likely benign · 190 Uncertain significance

Full FAM20C gene report on Sugi Atlas → Gene function, pathways, protein structure, constraint & interactions

⚑ Evidence disagreements 173

Variants where the independent computational evidence doesn't line up with the clinical picture — a QC signal for a second look, not a reclassification.

Predictors agree, ClinVar conflicts 7

ClinVar submitters conflict, but the independent predictors unanimously agree — a QC review flag, not a reclassification.

Predictors lean, ClinVar uncertain 127

ClinVar classifies these uncertain (VUS), but the independent predictors unanimously lean one way — a triage signal for review, not a reclassification.

Predictors split 39

The independent predictors disagree with each other — read with care.

All FAM20C variants

Pathogenic 19

  • p.Ser159fs Multiple submitters lethal osteosclerotic bone dysplasia
  • p.Gln431Ter Single submitter
  • p.Glu166Ter Single submitter
  • p.Glu43fs Single submitter
  • p.Gly482Glu Single submitter lethal osteosclerotic bone dysplasia
  • p.Lys338Ter Single submitter
  • p.Ser104fs Single submitter lethal osteosclerotic bone dysplasia
  • p.Tyr236Ter Single submitter
  • p.Val55fs Single submitter
  • c.1364-2A>G No assertion criteria lethal osteosclerotic bone dysplasia
  • c.1446-1G>A No assertion criteria lethal osteosclerotic bone dysplasia
  • c.956+5G>C No assertion criteria lethal osteosclerotic bone dysplasia
  • c.957-3C>G No assertion criteria lethal osteosclerotic bone dysplasia
  • p.Gly365Arg No assertion criteria lethal osteosclerotic bone dysplasia
  • p.Gly365Asp No assertion criteria lethal osteosclerotic bone dysplasia
  • p.Gly379Glu No assertion criteria lethal osteosclerotic bone dysplasia
  • p.Ile246Asn No assertion criteria lethal osteosclerotic bone dysplasia
  • p.Leu388Arg No assertion criteria lethal osteosclerotic bone dysplasia
  • p.Pro328Ser No assertion criteria lethal osteosclerotic bone dysplasia

Pathogenic/Likely pathogenic 1

  • p.Gly379Arg Multiple submitters FAM20C-related disorder

Likely pathogenic 7

Conflicting classifications of pathogenicity 16

Benign 81

Benign/Likely benign 19

Likely benign 221

Uncertain significance 190