mitochondrial complex IV deficiency, nuclear type 11
MONDO:0033645Mondo
Findings
No curated finding names mitochondrial complex IV deficiency, nuclear type 11 yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
- Inheritance
- Autosomal recessive inheritance
- Onset and course
- Juvenile onset
HPO, annotations 2026-09-02
Features
18 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- AtaxiaHPOHP:0001251
- 3 of 3 reported patients
- Cerebellar vermis atrophyHPOHP:0006855
- 2 of 2 reported patients
- Decreased activity of mitochondrial complex IVHPOHP:0008347
- 11 of 11 reported patients
- Delayed speech and language developmentHPOHP:0000750
- 1 of 1 reported patient
- DysarthriaHPOHP:0001260
- 2 of 2 reported patients
- HypotoniaHPOHP:0001252
- 1 of 1 reported patient
- Increased circulating lactate concentrationHPOHP:0002151
- 3 of 3 reported patients
- Increased CSF lactateHPOHP:0002490
- 1 of 1 reported patient
- Small for gestational ageHPOHP:0001518
- 1 of 1 reported patient
- Babinski signHPOHP:0003487
- 1 of 2 reported patients
- ChoreoathetosisHPOHP:0001266
- 1 of 2 reported patients
- Foot dorsiflexor weaknessHPOHP:0009027
- 1 of 2 reported patients
Show the remaining 6
- Frequent fallsHPOHP:0002359
- 1 of 2 reported patients · Juvenile onset
- Limb dystoniaHPOHP:0002451
- 1 of 2 reported patients
- TorticollisHPOHP:0000473
- 1 of 2 reported patients
- Dilated fourth ventricleHPOHP:0002198
- Elevated circulating creatine kinase activityHPOHP:0003236
- Sensory axonal neuropathyHPOHP:0003390
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.
- COX20HGNC:26970
- Strong · Ambry Genetics · Autosomal recessive · 2024
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2023
Where it sits
Other names
1 name
Resolves to: mitochondrial complex IV deficiency, nuclear type 11
- Also called
- MC4DN11