Description
This panel was developed and used by the Australian Genomics Brain Malformations Flagship. It is maintained by VCGS.

Tubulinopathies refer to a wide spectrum of cortical malformations that result from defects in genes encoding the tubulin protein that regulates neuronal migration during brain development.

Brain malformations include:
-A range of lissencephalies (classic lissencephaly, lissencephaly with cerebellar hypoplasia, lissencephaly with agenesis of the corpus callosum, and centrally predominant pachygyria),
-Polymicrogyria-like cortical dysplasia,
-Simplified gyral pattern, and
-Microlissencephaly often in combination with dysplastic basal ganglia, corpus callosum abnormalities, and hypoplasia or dysplasia of the brain stem and cerebellum.

Clinical features include motor and intellectual disabilities, epilepsy, and ocular findings of varying severity.

Where imaging and clinical features are less specific, consider applying the Malformations of Cortical Development superpanel.

2 reviewers

  • Paul De Fazio (Victorian Clinical Genetics Services)

  • Zornitza Stark (Victorian Clinical Genetics Services; Australian Genomics)

8 Entities

8 reviewed, 6 green

List Entity Reviews Mode of inheritance Details
8 Entitiess
Green Green List (high evidence)
TUBA1A
1 review
1 green
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Green
  • Victorian Clinical Genetics Services
Tags
Green Green List (high evidence)
TUBB
1 review
1 green
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Cortical dysplasia, complex, with other brain malformations 6, MIM# 615771
Tags
Green Green List (high evidence)
TUBB2A
1 review
1 green
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Cortical dysplasia, complex, with other brain malformations 5, MIM# 615763
Tags
Green Green List (high evidence)
TUBB2B
1 review
1 green
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Cortical dysplasia, complex, with other brain malformations 7, MIM# 610031
Tags
Green Green List (high evidence)
TUBB3
1 review
1 green
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Cortical dysplasia, complex, with other brain malformations 1, MIM# 614039
Tags
Green Green List (high evidence)
TUBG1
1 review
1 green
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Cortical dysplasia, complex, with other brain malformations 4, MIM# 615412
Tags
Red Red List (low evidence)
TUBA8
1 review
1 red
BIALLELIC, autosomal or pseudoautosomal
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Red
  • Victorian Clinical Genetics Services
Phenotypes
  • Cortical dysplasia, complex, with other brain malformations 8, MIM# 613180
Tags
Red Red List (low evidence)
TUBGCP4
1 review
1 red
BIALLELIC, autosomal or pseudoautosomal
Sources
  • Australian Genomics Health Alliance Brain Malformations Flagship
  • Expert Review Red
  • Victorian Clinical Genetics Services
Phenotypes
  • Microcephaly and chorioretinopathy, autosomal recessive, 3 (MIM#616335)
Tags

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