HMBS

hydroxymethylbilane synthase
OMIM: 609806, ClinGen, DECIPHER

10 panels

Panel Reviews Mode of inheritance Details
10 panels

Green HMBS in Mendeliome


Version 2.0

2 reviews BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Porphyria, acute intermittent, MIM#176000
  • Porphyria, acute intermittent, non-erythroid variant, MIM#176000
  • Encephalopathy, porphyria-related MIM#620704
  • Leukoencephalopathy, porphyria-related, MIM#620711

Green HMBS in Regression


Level 2: Neurology and neurodevelopmental disorders
Version 1.0

1 review BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • Victorian Clinical Genetics Services
Phenotypes
  • Encephalopathy, porphyria-related MIM#620704
  • Leukoencephalopathy, porphyria-related, MIM#620711

Green HMBS in Additional findings_Adult


Level 2: Screening
Version 2.0

1 review MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Expert Review Green
  • Expert list
Phenotypes
  • Porphyria, acute intermittent, MIM#176000

Green HMBS in Intellectual disability syndromic and non-syndromic


Level 2: Neurology and neurodevelopmental disorders
Version 2.0

1 review BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • Expert Review
Phenotypes
  • Encephalopathy, porphyria-related MIM#620704
  • Leukoencephalopathy, porphyria-related, MIM#620711

Green HMBS in Leukodystrophy


Level 2: Neurology and neurodevelopmental disorders
Version 1.0

2 reviews BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • Expert list
Phenotypes
  • Leukoencephalopathy, porphyria-related, MIM# 620711

Green HMBS in Hereditary Neuropathy


Level 2: Neurology and neurodevelopmental disorders
Version 2.0

2 reviews MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Sources
  • Expert Review Green
  • Royal Melbourne Hospital
Phenotypes
  • Porphyria, acute intermittent MIM#176000
  • MONDO:0008294

Green HMBS in Haem degradation and bilirubin metabolism defects


Level 2: Metabolic disorders
Version 1.0

1 review MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Expert Review Green
  • Royal Melbourne Hospital
Phenotypes
  • Porphyria, acute intermittent, 176000
  • Porphyria, acute intermittent, nonerythroid variant, 176000

Green HMBS in Rhabdomyolysis and Metabolic Myopathy


Level 2: Neurology and neurodevelopmental disorders
Version 2.0

2 reviews MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Expert Review Green
  • Literature
  • Victorian Clinical Genetics Services
Phenotypes
  • Porphyria, acute intermittent MIM#176000

Red HMBS in Additional findings_Paediatric


Level 2: Screening
Version 1.0

0 reviews MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Expert Review Red
  • BabySeq Category C gene
Phenotypes
  • Porphyria, acute intermittent

Red HMBS in Genomic newborn screening: BabyScreen+


Level 2: Screening
Version 2.0

0 reviews MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • BabySeq Category C gene
  • Expert Review Red
Phenotypes
  • Porphyria, acute intermittent