Trait
Knee clonus
Clonus is an involuntary tendon reflex that causes repeated flexion and extension of the foot. Knee clonus can be tested by rapidly pushing the patella towards the toes.
Summary
- Also called
- Patellar clonus
- Body system
- Abnormality of the nervous system
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
Read the genes linked to Knee clonus, and the rest of your genome, with one test.
From $449Free shipping · Results in 6–8 weeks
Get my Genome Test9 genes linked to Knee clonus
Changes in these genes cause rare conditions in which Knee clonus is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| COQ4coenzyme Q4 | Always | In 1 condition |
| MTRFRmitochondrial translation release factor in rescue | Often (30–79%) | In 1 condition |
| NFU1NFU1 iron-sulfur cluster scaffold | Often (30–79%) | In 1 condition |
| GBA2glucosylceramidase beta 2 | Not recorded | In 1 condition |
| KIF5Akinesin family member 5A | Not recorded | In 1 condition |
| RTN2reticulon 2 | Not recorded | In 1 condition |
| SLC52A3solute carrier family 52 member 3 | Not recorded | In 1 condition |
| SPARTspartin | Not recorded | In 1 condition |
| SPG11SPG11 vesicle trafficking associated, spatacsin | Not recorded | In 1 condition |
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
One test. A lifetime of answers.
From $449Free shipping · Results in 6–8 weeks