hypermethioninemia with deficiency of S-adenosylhomocysteine hydrolase

Summary
Synonym
  • hypermethioninemia due to S-adenosylhomocysteine hydrolase deficiency
  • psychomotor retardation due to S-adenosylhomocysteine hydrolase deficiency
Definition
A hypermethioninemia characterized by autosomal recessive inheritance of psychomotor delay, severe myopathy, hypermethioninaemia and elevated serum creatine kinase levels that has_material_basis_in compound heterozygous mutation in the AHCY gene on chromosome 20q11.
Super Class
hypermethioninemia
Disease Ontology
DOID:0111039
Mondo Disease Ontology
ORDO
GARD
WikiPathways (from TogoID)
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
191 AHCY adenosylhomocysteinase
Related Glycoprotein
Displaying 1 entry
UniProt ID Protein Name Source
P23526 Adenosylhomocysteinase
The Human Phenotype Ontology
Displaying entries 1 - 10 of 49 in total
HPO ID HPO Term
HP:0000164 Abnormality of the dentition
HP:0000252 Microcephaly
HP:0000486 Strabismus
HP:0000565 Esotropia
HP:0000708 Atypical behavior
HP:0000736 Short attention span
HP:0001263 Global developmental delay
HP:0001321 Cerebellar hypoplasia
HP:0001324 Muscle weakness
HP:0001392 Abnormality of the liver
Displaying 1 entry
Gene ID Gene Symbol Description
191 AHCY adenosylhomocysteinase

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: April 7, 2025