Trait

Myoclonic spasms

Body system: Abnormality of the nervous system

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9 genes linked to Myoclonic spasms

Changes in these genes cause rare conditions in which Myoclonic spasms 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
BRAT1BRCA1 associated ATM activator 1	Always	In 1 condition
TXN2thioredoxin 2	Very often (80–99%)	In 1 condition
MT-ATP6mitochondrially encoded ATP synthase membrane subunit 6	Often (30–79%)	In 1 condition
RRAGDRas related GTP binding D	Often (30–79%)	In 1 condition
GNASGNAS complex locus	Sometimes (5–29%)	In 3 conditions
SLC1A4solute carrier family 1 member 4	Sometimes (5–29%)	In 1 condition
STX16syntaxin 16	Sometimes (5–29%)	In 1 condition
MOCS1molybdenum cofactor synthesis 1	Not recorded	In 1 condition
MOCS2molybdenum cofactor synthesis 2	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.

Narrower traits

Spasms on one side of the face12 genes

Broader traits

Jerking

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.

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