TBC1D20

TBC1 domain family member 20
OMIM: 611663, Gene2Phenotype

7 panels

Panel Reviews Mode of inheritance Details
7 panels
Red TBC1D20 in Optic neuropathy


Level 2: Ophthalmology
Version 6.51
Latest signed off version: v6.46 (12 Aug 2026)

review BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Red
  • London North GLH
Phenotypes
  • WARBURG MICRO SYNDROME 4 615663
Green TBC1D20 in Fetal anomalies


Level 2: Fetal (including NIPD)
Version 8.5
Latest signed off version: v8.0 (12 Aug 2026)

review BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • PAGE Additional Gene List
  • PAGE DD-Gene2Phenotype
Phenotypes
  • Warburg micro syndrome 4 615663
  • Warburg micro syndrome 4
Tags
  • watchlist
Green TBC1D20 in DDG2P


Version 8.1
Latest signed off version: v8.0 (12 Aug 2026)

Component of the following Super Panels:

  • Paediatric disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • DD-Gene2Phenotype
    Phenotypes
    • Warburg micro syndrome 4
    Green TBC1D20 in Anophthalmia or microphthalmia

    Level 3: Ocular malformations
    Level 2: Ophthalmological disorders
    Version 1.57

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Radboud University Medical Center, Nijmegen
    Phenotypes
    • Warburg micro syndrome 4, 615663
    Amber TBC1D20 in Early onset or syndromic epilepsy


    Level 2: Neurology
    Version 9.74
    Latest signed off version: v9.56 (12 Aug 2026)

    Component of the following Super Panels:

  • Paediatric disorders
  • Unexplained death in infancy and sudden unexplained death in childhood
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Wessex and West Midlands GLH
    • NHS GMS
    • Expert Review Amber
    • Victorian Clinical Genetics Services
    Phenotypes
    • Warburg micro syndrome 4, 615663
    • seizures
    Tags
    • watchlist
    Green TBC1D20 in Intellectual disability


    Level 2: Developmental disorders
    Version 11.28
    Latest signed off version: v11.0 (12 Aug 2026)

    Component of the following Super Panels:

  • Hypotonic infant
  • Leukodystrophy, childhood onset
  • Paediatric disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Radboud University Medical Center, Nijmegen
    • Literature
    Phenotypes
    • Warburg micro syndrome 4, 615663
    • mental retardation
    • developmental delay
    Green TBC1D20 in Structural eye disease


    Level 2: Ophthalmology
    Version 5.8
    Latest signed off version: v5.7 (12 Aug 2026)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Warburg micro syndrome 4, 615663