DCDC2 — 377 ClinVar variants

All ClinVar germline DCDC2 variants across every classification, each assembled from ClinVar, gnomAD, AlphaMissense, conservation and more. 169 flagged for review →

14 Pathogenic · 3 Pathogenic/Likely pathogenic · 15 Likely pathogenic · 25 Conflicting · 46 Benign · 6 Benign/Likely benign · 103 Likely benign · 165 Uncertain significance

Full DCDC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, constraint & interactions

⚑ Evidence disagreements 169

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 vs ClinVar 3

ClinVar calls these pathogenic, but the computational predictors lean tolerated — the highest-value review flag.

Predictors agree, ClinVar conflicts 9

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

Predictors lean, ClinVar uncertain 89

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

Predictors split 68

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

All DCDC2 variants

Pathogenic 14

  • c.294-2A>G Multiple submitters nephronophthisis 19
  • c.349-2A>G Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • c.705-2A>G Multiple submitters DCDC2-related disorder
  • p.Ile177fs Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • p.Leu297Ter Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • p.Ser42fs Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • c.557+1G>T Single submitter DCDC2-related disorder
  • p.Asn98fs Single submitter
  • p.Glu116Ter Single submitter chylomicron retention disease
  • p.Leu179fs Single submitter isolated neonatal sclerosing cholangitis
  • c.426_557del No assertion criteria isolated neonatal sclerosing cholangitis
  • p.Gln424Pro No assertion criteria Nonsyndromic Deafness ⚠
  • p.Lys17Asn No assertion criteria isolated neonatal sclerosing cholangitis ⚠
  • p.Lys217Ter No assertion criteria isolated neonatal sclerosing cholangitis

Pathogenic/Likely pathogenic 3

  • p.Ala324fs Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • p.Gly315fs Multiple submitters isolated neonatal sclerosing cholangitis
  • p.Ser128Ter Multiple submitters nephronophthisis 19

Likely pathogenic 15

  • c.1023+2T>C Single submitter isolated neonatal sclerosing cholangitis
  • c.426-2A>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.923-283_1023+141del Single submitter isolated neonatal sclerosing cholangitis
  • p.Asp26His Single submitter isolated neonatal sclerosing cholangitis
  • p.Gln301Ter Single submitter nephronophthisis 19
  • p.Glu202Ter Single submitter nephronophthisis 19
  • p.Glu349Ter Single submitter isolated neonatal sclerosing cholangitis
  • p.Glu386fs Single submitter DCDC2-related disorder
  • p.Leu97fs Single submitter nephronophthisis 19
  • p.Lys277Ter Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Met1Arg Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Pro14fs Single submitter nephronophthisis 19
  • p.Val184fs Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Arg75fs No assertion criteria nephronophthisis 19
  • p.Gln417Ter No assertion criteria DCDC2-related disorder

Conflicting classifications of pathogenicity 25

  • c.1327-11T>C Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.1327-15T>A Single submitter nephronophthisis 19
  • c.349-9C>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Ala356Thr Single submitter isolated neonatal sclerosing cholangitis ⚠
  • p.Arg186Ser Single submitter nephronophthisis 19 ⚠
  • p.Arg232= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Arg23Leu Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Arg318= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Arg400His Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Gly31= Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Ile74= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Lys290Arg Single submitter Inborn genetic diseases ⚠
  • p.Lys296= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Pro134= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Pro273Ser Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Pro453= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Ser181= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Ser181Arg Single submitter Inborn genetic diseases ⚠
  • p.Ser239Ala Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Ser250= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Ser367Thr Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Thr333= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Val117Ile Single submitter Inborn genetic diseases ⚠
  • p.Val19= Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Val475Met Single submitter isolated neonatal sclerosing cholangitis ⚠

Benign 46

Benign/Likely benign 6

  • c.1023+28G>C Multiple submitters
  • c.349-16dup Multiple submitters isolated neonatal sclerosing cholangitis
  • p.Arg160= Multiple submitters isolated neonatal sclerosing cholangitis
  • p.Arg403His Multiple submitters isolated neonatal sclerosing cholangitis
  • p.Asp348= Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • p.Ser285= Multiple submitters autosomal recessive nonsyndromic hearing loss 66

Likely benign 103

  • c.293+79C>T Multiple submitters
  • c.349-15C>T Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • c.425+33A>G Multiple submitters
  • c.558-50C>A Multiple submitters
  • c.558-6C>T Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • c.923-12T>G Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • c.923-145C>T Multiple submitters
  • c.923-18G>A Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • c.923-319T>G Multiple submitters
  • c.-24C>T Multiple submitters
  • c.-97-502C>A Multiple submitters
  • p.Ala474= Multiple submitters isolated neonatal sclerosing cholangitis
  • p.Asp383His Multiple submitters autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Thr408= Multiple submitters autosomal recessive nonsyndromic hearing loss 66
  • p.Val15= Multiple submitters autosomal recessive nonsyndromic hearing loss 66 ⚠
  • c.1023+11T>C Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.1023+14C>A Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.1024-16C>T Single submitter isolated neonatal sclerosing cholangitis
  • c.1024-5A>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.1024-9A>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.1326+19C>T Single submitter isolated neonatal sclerosing cholangitis
  • c.1326+9A>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.1327-318G>C Single submitter
  • c.1327-9T>C Single submitter isolated neonatal sclerosing cholangitis
  • c.293+20C>T Single submitter isolated neonatal sclerosing cholangitis
  • c.294-11T>A Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.348+282G>T Single submitter
  • c.349-10G>T Single submitter
  • c.349-233T>C Single submitter
  • c.349-251_349-250insTTC Single submitter
  • c.349-251del Single submitter
  • c.349-8T>G Single submitter isolated neonatal sclerosing cholangitis
  • c.425+10A>T Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.425+11A>T Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.425+16T>G Single submitter isolated neonatal sclerosing cholangitis
  • c.557+14A>G Single submitter isolated neonatal sclerosing cholangitis
  • c.557+250C>A Single submitter
  • c.558-4A>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.558-5G>T Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.705-10G>T Single submitter isolated neonatal sclerosing cholangitis
  • c.705-11del Single submitter isolated neonatal sclerosing cholangitis
  • c.705-127A>G Single submitter
  • c.705-4A>C Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.759+13T>G Single submitter isolated neonatal sclerosing cholangitis
  • c.759+16T>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.759+17T>G Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.759+9C>G Single submitter isolated neonatal sclerosing cholangitis
  • c.760-12T>C Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.760-7C>T Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.922+17T>C Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.922+19T>C Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.923-10G>T Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.923-12_923-9del Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.923-139A>C Single submitter
  • c.923-20C>T Single submitter isolated neonatal sclerosing cholangitis
  • c.923-5A>C Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.923-8C>T Single submitter autosomal recessive nonsyndromic hearing loss 66
  • c.-126T>C Single submitter
  • c.-192T>C Single submitter
  • c.-89C>A Single submitter
  • c.*3C>T Single submitter
  • p.Ala360= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Arg33= Single submitter autosomal recessive nonsyndromic hearing loss 66 ⚠
  • p.Arg342= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Arg379= Single submitter
  • p.Asn306= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Asp282= Single submitter isolated neonatal sclerosing cholangitis
  • p.Asp308= Single submitter
  • p.Asp444= Single submitter isolated neonatal sclerosing cholangitis
  • p.Gln424= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Gln448= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Glu411= Single submitter isolated neonatal sclerosing cholangitis
  • p.Gly378= Single submitter isolated neonatal sclerosing cholangitis
  • p.Gly407= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.His122= Single submitter isolated neonatal sclerosing cholangitis
  • p.His185= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Ile244= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Leu157= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Leu425= Single submitter isolated neonatal sclerosing cholangitis
  • p.Leu48= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Leu77= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Phe234= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Pro138= Single submitter isolated neonatal sclerosing cholangitis
  • p.Pro152= Single submitter isolated neonatal sclerosing cholangitis
  • p.Pro401= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Ser239= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Ser269= Single submitter isolated neonatal sclerosing cholangitis
  • p.Ser4= Single submitter isolated neonatal sclerosing cholangitis ⚠
  • p.Thr229= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Val169= Single submitter isolated neonatal sclerosing cholangitis
  • p.Val388= Single submitter autosomal recessive nonsyndromic hearing loss 66
  • p.Val41= Single submitter isolated neonatal sclerosing cholangitis
  • p.Val426= Single submitter
  • c.1326+6T>G No assertion criteria DCDC2-related disorder
  • c.704+6T>C No assertion criteria DCDC2-related disorder
  • c.*10A>G No assertion criteria DCDC2-related disorder
  • p.Arg69Gln No assertion criteria DCDC2-related disorder
  • p.Gly54= No assertion criteria DCDC2-related disorder
  • p.Leu170= No assertion criteria DCDC2-related disorder
  • p.Phe206= No assertion criteria DCDC2-related disorder
  • p.Pro14= No assertion criteria DCDC2-related disorder
  • p.Tyr86= No assertion criteria DCDC2-related disorder
  • p.Val404= No assertion criteria DCDC2-related disorder

Uncertain significance 165