1. Genes and Genomic Entities
  2. MMAA

MMAA

methylmalonic aciduria (cobalamin deficiency) cblA type
OMIM: 607481, Gene2Phenotype

8 panels

Panel Reviews Mode of inheritance Details
8 panels
Green MMAA in Hyperammonaemia

Level 3: Urea Cycle disorders
Level 2: Metabolic disorders
Version 1.21

review BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • UKGTN
  • Radboud University Medical Center, Nijmegen
  • Illumina TruGenome Clinical Sequencing Services
  • Emory Genetics Laboratory
Phenotypes
  • Methylmalonic aciduria, vitamin B12-responsive 251100
Green MMAA in Undiagnosed metabolic disorders

Level 3: Specific metabolic abnormalities
Level 2: Metabolic disorders
Version 1.617

review BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • Literature
Phenotypes
  • Defect in adenosylcobalamin synthesis-cbl A (Disorders of cobalamin absorption, transport and metabolism)
  • Methylmalonic aciduria, vitamin B12-responsive 251100
Green MMAA in Likely inborn error of metabolism - targeted testing not possible


Version 4.137
Latest signed off version: v4.0 (22 Mar 2023)

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
    • London North GLH
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Methylmalonic aciduria, vitamin B12-responsive 251100
    • Defect in adenosylcobalamin synthesis-cbl A (Disorders of cobalamin absorption, transport and metabolism)
    Red MMAA in Fetal anomalies


    Version 3.164
    Latest signed off version: v3.0 (22 Mar 2023)

    		review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Red
    • PAGE DD-Gene2Phenotype
    Phenotypes
    • METHYLMALONIC ACIDURIA TYPE CBLA
    Green MMAA in DDG2P


    Version 3.88
    Latest signed off version: v3.1 (22 Mar 2023)

    Component of the following Super Panels:

  • Paediatric disorders

    		•  review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • DD-Gene2Phenotype
    • Expert Review Green
    Phenotypes
    • METHYLMALONIC ACIDURIA TYPE CBLA 251100
    Green MMAA in Intellectual disability - microarray and sequencing

    Level 3: Neurodevelopmental disorders
    Level 2: Neurology and neurodevelopmental disorders
    Version 5.544
    Latest signed off version: v5.0 (22 Mar 2023)

    Component of the following Super Panels:

  • Childhood onset leukodystrophy
  • Hypotonic infant
  • Paediatric disorders

    		•  review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Radboud University Medical Center, Nijmegen
    Phenotypes
    • Methylmalonic aciduria, vitamin B12-responsive, 251100
    • METHYLMALONIC ACIDURIA TYPE CBLA
    Red MMAA in Childhood onset dystonia, chorea or related movement disorder


    Version 3.77
    Latest signed off version: v3.0 (22 Mar 2023)

    		review Not set
    Sources
    • Expert Review Red
    • London North GLH
    Green MMAA in Severe Paediatric Disorders


    Version 1.184

    		review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Next Generation Children Project
    • Expert Review Green
    • Expert list
    Phenotypes
    • Methylmalonic aciduria, vitamin B12-responsive, 251100