ArticleAmerican journal of medical genetics. Part A2021
ECHS1 disease in two unrelated families of Samoan descent: Common variant - rare disorder.
Article in American journal of medical genetics. Part A, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.
- Short-chain enoyl-CoA hydratase deficiency: a systematic review of clinical spectrum, genotype-phenotype correlations and survival predictors.Neurogenetics · 2026Pooled it
- RNA Sequencing Resolves Cryptic Pathogenic Variants in Mitochondrial Disease.Annals of clinical and translational neurology · 2026Article
- COG5 deficiency disrupts cellular copper homeostasis and underlies the impaired mitochondrial OXPHOS function.PLoS genetics · 2026Article
- ECHS1: pathogenic mechanisms, experimental models, and emerging therapeutic strategies.Orphanet journal of rare diseases · 2025Review
- Expanding the Clinical and Genetic Spectrum of Mitochondrial Short-Chain Enoyl-CoA Hydratase 1 Deficiency: Insights From Two Unrelated Chinese Families.Molecular genetics & genomic medicine · 2025Review
- BiallelicBrain communications · 2025Article
- Increased ketone levels as a key magnetic resonance spectroscopic findings during acute exacerbation inRadiology case reports · 2024Article
- Molecular and in silico investigation of a novel ECHS1 gene mutation in a consanguine family with short-chain enoyl-CoA hydratase deficiency and Mt-DNA depletion: effect on trimer assembly and catalytic activity.Metabolic brain disease · 2024Article
- Clinical improvements after treatment with a low-valine and low-fat diet in a pediatric patient with enoyl-CoA hydratase, short chain 1 (ECHS1) deficiency.Orphanet journal of rare diseases · 2022Article
- Pathogenic Biallelic Mutations in ECHS1 in a Case with Short-Chain Enoyl-CoA Hydratase (SCEH) Deficiency-Case Report and Literature Review.International journal of environmental research and public health · 2022Review
- Terminal 10q26.12 deletion is associated with neonatal asymmetric crying facies syndrome: a case report and literature review.Molecular cytogenetics · 2021Article
- Exploring triheptanoin as treatment for short chain enoyl CoA hydratase deficiency.Annals of clinical and translational neurology · 2021Article
- ECHS1 disease in two unrelated families of Samoan descent: Common variant - rare disorder.American journal of medical genetics. Part A · 2021Article
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Authors and funding
17 authors at 7 institutions in 6 countries.
Funding
Abstract
Mutations in the short-chain enoyl-CoA hydratase (SCEH) gene, ECHS1, cause a rare autosomal recessive disorder of valine catabolism. Patients usually present with developmental delay, regression, dystonia, feeding difficulties, and abnormal MRI with bilateral basal ganglia involvement. We present clinical, biochemical, molecular, and functional data for four affected patients from two unrelated families of Samoan descent with identical novel compound heterozygous mutations. Family 1 has three affected boys while Family 2 has an affected daughter, all with clinical and MRI findings of Leigh syndrome and intermittent episodes of acidosis and ketosis. WES identified a single heterozygous variant in ECHS1 at position c.832G > A (p.Ala278Thr). However, western blot revealed significantly reduced ECHS1 protein for all affected family members. Decreased SCEH activity in fibroblasts and a mild increase in marker metabolites in urine further supported ECHS1 as the underlying gene defect. Additional investigations at the DNA (aCGH, WGS) and RNA (qPCR, RT-PCR, RNA-Seq, RNA-Array) level identified a silent, common variant at position c.489G > A (p.Pro163=) as the second mutation. This substitution, present at high frequency in the Samoan population, is associated with decreased levels of normally spliced mRNA. To our understanding, this is the first report of a novel, hypomorphic allele c.489G > A (p.Pro163=), associated with SCEH deficiency.
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