P5CS deficiency
Findings
No curated finding names P5CS deficiency yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
An inborn error of proline/orinthine metabolism that covers a wide spectrum of phenotypes and is caused by pathogenic variants in the aldehyde dehydrogenase 18 family member A1 (ALDH18A1) gene. These variants lead to a variety of neurocutaneous and motor syndromes characterized by cutis laxa, connective tissue weakness, facial dysmorphism, growth restriction, developmental delay, cataracts, hypotonia, hypertonia, and amyotrophy.
Definition from the Mondo Disease Ontology (MONDO:0100126), read 2026-09-29. CC BY 4.0.
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- ALDH18A1HGNC:9722
- Definitive · ClinGen · Semidominant · 2021
- Definitive · Illumina · Semidominant · 2020
Where it sits
Other names
1 name
Resolves to: P5CS deficiency
- Also called
- delta1-pyrroline-5-carboxylate synthetase deficiency