TTPA

alpha tocopherol transfer protein
OMIM: 600415, Gene2Phenotype

11 panels

Panel Reviews Mode of inheritance Details
11 panels
Green TTPA in Ataxia and cerebellar anomalies - narrow panel


Level 2: Neurology
Version 8.67
Latest signed off version: v8.0 (30 Apr 2025)

Component of the following Super Panels:

  • Hereditary ataxia and cerebellar anomalies - childhood onset
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    Phenotypes
    • Ataxia with isolated vitamin E deficiency
    • Ataxia with Vitamin E Deficiency
    Green TTPA in Hereditary ataxia

    Level 3: Motor Disorders of the CNS
    Level 2: Neurology and neurodevelopmental disorders
    Version 1.344

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Radboud University Medical Center, Nijmegen
    • Illumina TruGenome Clinical Sequencing Services
    Phenotypes
    • Ataxia with Vitamin E Deficiency
    • Ataxia with isolated vitamin E deficiency
    Red TTPA in Adult onset neurodegenerative disorder


    Level 2: Neurology
    Version 8.16
    Latest signed off version: v8.0 (30 Apr 2025)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Red
    • Wessex and West Midlands GLH
    • Yorkshire and North East GLH
    • NHS GMS
    • London North GLH
    Phenotypes
    • Ataxia with isolated vitamin E deficiency
    • Ataxia with Vitamin E Deficiency
    Green TTPA in Undiagnosed metabolic disorders

    Level 3: Specific metabolic abnormalities
    Level 2: Metabolic disorders
    Version 1.643

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Literature
    Phenotypes
    • TTP1 deficiency (Other disorders of vitamins and cofactors)
    • Hereditary ataxia
    Green TTPA in Likely inborn error of metabolism


    Level 2: Metabolic
    Version 8.98
    Latest signed off version: v8.0 (30 Apr 2025)

    Component of the following Super Panels:

  • Childhood onset leukodystrophy
  • Hypotonic infant
  • Paediatric disorders
  • Unexplained death in infancy and sudden unexplained death in childhood
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • London North GLH
    • NHS GMS
    Phenotypes
    • TTP1 deficiency (Other disorders of vitamins and cofactors)
    • Hereditary ataxia
    Green TTPA in Hereditary neuropathy

    Level 3: Motor and Sensory Disorders of the PNS
    Level 2: Neurology and neurodevelopmental disorders
    Version 1.506

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • London North GLH
    • NHS GMS
    • South West GLH
    • Emory Genetics Laboratory
    Phenotypes
    • Hereditary Neuropathies
    • Early onset ataxia and sensory axonal neuropathy similar to Friedreich ataxia, head titubation, normal fat absorption unlike abetalipoproteinaemia, rarely retinitis pigmentosa
    Red TTPA in Intellectual disability


    Level 2: Developmental disorders
    Version 9.304
    Latest signed off version: v9.0 (30 Apr 2025)

    Component of the following Super Panels:

  • Childhood onset leukodystrophy
  • Hypotonic infant
  • Paediatric disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Red
    • BRIDGE study SPEED NEURO Tier1 Gene
    Phenotypes
    • Ataxia with isolated vitamin E deficiency, 277460
    Green TTPA in Hereditary ataxia with onset in adulthood


    Level 2: Neurology
    Version 8.26
    Latest signed off version: v8.0 (30 Apr 2025)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • London North GLH
    • NHS GMS
    • Wessex and West Midlands GLH
    • Expert Review Green
    • Hereditary ataxia v1.148
    Phenotypes
    • Ataxia with isolated vitamin E deficiency
    • Ataxia with Vitamin E Deficiency
    • Ataxia with isolated vitamin E deficiency, 277460
    Amber TTPA in Retinal disorders


    Level 2: Ophthalmology
    Version 8.99
    Latest signed off version: v8.0 (30 Apr 2025)

    review Not set
    Sources
    • NHS GMS
    • RetNet
    • Expert Review Amber
    Green TTPA in Hereditary neuropathy or pain disorder


    Level 2: Neurology
    Version 7.43
    Latest signed off version: v7.0 (30 Apr 2025)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • NHS GMS
    • London North GLH
    • South West GLH
    • Emory Genetics Laboratory
    • London North GLH
    • NHS GMS
    • South West GLH
    Phenotypes
    • Ataxia with isolated vitamin E deficiency, OMIM:277460
    • familial isolated deficiency of vitamin E MONDO:0010188
    Red TTPA in Childhood onset dystonia, chorea or related movement disorder


    Level 2: Neurology
    Version 7.17
    Latest signed off version: v7.0 (30 Apr 2025)

    review Not set
    Sources
    • Expert Review Red
    • London North GLH