Kisho is an information platform, not a medical provider. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. All content is aggregated from publicly available sources (including ClinicalTrials.gov, PubMed, FDA.gov, and Orphanet) and is provided for informational purposes only. Clinical trial eligibility, treatment decisions, and any health-related actions should always be discussed with a qualified healthcare professional. Kisho does not endorse any specific therapy, organization, or clinical trial. Terms of use · Privacy policy
Pyruvate dehydrogenase E3-binding protein deficiency is a rare mild form of pyruvate dehydrogenase deficiency (PDHD) characterized by variable lactic acidosis and neurological dysfunction.
Features include: Epicanthus, Trigonocephaly, Dystonia, and Seizure and 22 more.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 10 | Dystonia, Seizure, Ataxia |
Muscles | 3 | Damage to the optic nerve (optic atrophy), Neonatal hypotonia, Poor gross motor coordination |
Head and neck | 2 | High palate, Microcephaly |
Eyes | 2 | Abnormal eye movements (abnormality of eye movement), Damage to the optic nerve (optic atrophy) |
Lab test results | 2 | Increased circulating pyruvate concentration, Decreased activity of the pyruvate dehydrogenase complex |
Metabolism | 1 | Metabolic acidosis |
Pregnancy and birth | 1 | Neonatal hypotonia |
PDHX function has not been fully characterized.
Pyruvate dehydrogenase E3-binding protein deficiency is associated with mutations in the PDHX gene on chromosome 11.
Genetic testing for PDHX is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for pyruvate dehydrogenase E3-binding protein deficiency has been reported in the published literature.
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for pyruvate dehydrogenase E3-binding protein deficiency.
22 publications have been identified in PubMed for pyruvate dehydrogenase E3-binding protein deficiency. Research spans Basic Science / Preclinical (59%), Case Report / Case Series (23%), and Review / Meta-Analysis (9%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 13 | 59% |
Patient case studies | 5 | 23% |
Research summaries | 2 | 9% |
Testing and diagnosis research | 1 | 5% |
Disease patterns and progression | 1 | 5% |
Karim M (2026). [PMID: 41615804](https://pubmed.ncbi.nlm.nih.gov/41615804/). *Cell Rep*. [Basic Science / Preclinical]
Khalaf-Nazzal R (2026). [PMID: 41737903](https://pubmed.ncbi.nlm.nih.gov/41737903/). *JIMD Rep*. [Basic Science / Preclinical]
Zhang H (2025). [PMID: 41013826](https://pubmed.ncbi.nlm.nih.gov/41013826/). *Stem Cell Res Ther*. [Basic Science / Preclinical]
Tejedor JR (2025). [PMID: 39659154](https://pubmed.ncbi.nlm.nih.gov/39659154/). *J Inherit Metab Dis*. [Diagnostic / Biomarker]
Jafari M (2025). [PMID: 41379204](https://pubmed.ncbi.nlm.nih.gov/41379204/). *Mol Biol Rep*. [Basic Science / Preclinical]
Jiang H (2025). [PMID: 41018056](https://pubmed.ncbi.nlm.nih.gov/41018056/). *Front Pediatr*. [Case Report / Case Series]
Jiang Z (2025). [PMID: 39311688](https://pubmed.ncbi.nlm.nih.gov/39311688/). *Protein Cell*. [Basic Science / Preclinical]
Orthwein T (2025). [PMID: 40178271](https://pubmed.ncbi.nlm.nih.gov/40178271/). *mBio*. [Basic Science / Preclinical]
Hassan I (2025). [PMID: 41450887](https://pubmed.ncbi.nlm.nih.gov/41450887/). *Front Pediatr*. [Case Report / Case Series]
Gao G (2025). [PMID: 40011434](https://pubmed.ncbi.nlm.nih.gov/40011434/). *Nat Commun*. [Basic Science / Preclinical]
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 7:50 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center