DDX3X

DEAD-box helicase 3, X-linked
OMIM: 300160, Gene2Phenotype

9 panels

Panel Reviews Mode of inheritance Details
9 panels
Green DDX3X in Pigmentary skin disorders


Level 2: Dermatology
Version 5.2
Latest signed off version: v5.0 (6 May 2026)

review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Sources
  • Expert Review Green
  • Expert list
Phenotypes
  • Intellectual developmental disorder, X-linked, syndrome, Snijders Blok type, OMIM:300958
Green DDX3X in Childhood onset hereditary spastic paraplegia


Level 2: Neurology
Version 9.1
Latest signed off version: v9.0 (6 May 2026)

review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Sources
  • NHS GMS
  • Expert Review Green
  • Literature
Phenotypes
  • Intellectual developmental disorder, X-linked syndromic, Snijders Blok type, OMIM:300958
Green DDX3X in Fetal anomalies


Level 2: Fetal (including NIPD)
Version 7.10
Latest signed off version: v7.0 (6 May 2026)

review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Sources
  • PAGE DD-Gene2Phenotype
  • Expert Review Green
Phenotypes
  • Intellectual developmental disorder, X-linked syndromic, Snijders Blok type, OMIM:300958
Amber DDX3X in Rare syndromic craniosynostosis or isolated multisuture synostosis


Level 2: Musculoskeletal
Version 6.5
Latest signed off version: v6.0 (30 Apr 2025)

review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Sources
  • Expert Review Amber
  • Literature
Phenotypes
  • Intellectual developmental disorder, X-linked syndromic, Snijders Blok type, OMIM:300958
  • craniosynostosis, MONDO:0015469
Green DDX3X in DDG2P


Version 7.1
Latest signed off version: v7.0 (6 May 2026)

Component of the following Super Panels:

  • Paediatric disorders
  • review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
    Sources
    • DD-Gene2Phenotype
    • Expert Review Green
    Phenotypes
    • INTELLECTUAL DIABILITY
    Amber DDX3X in Clefting


    Level 2: Musculoskeletal
    Version 7.3
    Latest signed off version: v7.0 (6 May 2026)

    Component of the following Super Panels:

  • Paediatric disorders
  • review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
    Sources
    • Expert Review Amber
    Phenotypes
    • Intellectual developmental disorder, X-linked syndromic, Snijders Blok type, OMIM:300958
    Green DDX3X in Early onset or syndromic epilepsy


    Level 2: Neurology
    Version 9.7
    Latest signed off version: v9.0 (6 May 2026)

    Component of the following Super Panels:

  • Paediatric disorders
  • Unexplained death in infancy and sudden unexplained death in childhood
  • review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
    Sources
    • Wessex and West Midlands GLH
    • NHS GMS
    • Expert Review Green
    • Victorian Clinical Genetics Services
    Phenotypes
    • Intellectual developmental disorder, X-linked syndromic, Snijders Blok type, OMIM:300958
    Green DDX3X in Intellectual disability


    Level 2: Developmental disorders
    Version 10.17
    Latest signed off version: v10.0 (6 May 2026)

    Component of the following Super Panels:

  • Childhood onset leukodystrophy
  • Hypotonic infant
  • Paediatric disorders
  • review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
    Sources
    • Victorian Clinical Genetics Services
    • Expert Review Green
    • Literature
    Phenotypes
    • Intellectual developmental disorder, X-linked syndromic, Snijders Blok type, OMIM:300958
    Red DDX3X in Paediatric pseudo-obstruction syndrome


    Level 2: Gastrohepatology
    Version 2.6
    Latest signed off version: v2.5 (6 May 2026)

    review X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
    Sources
    • Expert Review Red
    • Expert list
    Phenotypes
    • Intellectual developmental disorder, X-linked syndromic, Snijders Blok type, OMIM:300958