Traits

Traits linked to GNAL

G protein subunit alpha L

The Human Phenotype Ontology links 8 traits to GNAL, by body system: features seen in people with one of the gene's rare conditions.

Abnormality of the nervous system

Trait	How often it is seen
Focal dystonia	Very often (80–99%)
Abnormal craniofacial muscle tone	Often (30–79%)
Axial dystonia	Often (30–79%)
Laryngeal dystonia	Often (30–79%)
Limb dystonia	Often (30–79%)
Lingual dystonia	Often (30–79%)

Abnormality of head or neck

Trait	How often it is seen
Wry neck	Often (30–79%)

Abnormality of the voice

Trait	How often it is seen
Inability to produce voice sounds	Not recorded

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.

Where this comes from

The Human Phenotype Ontology, release 2026-09-01: the traits linked to GNAL and how often each is seen. Find out more at hpo.jax.org.

One test. A lifetime of answers.

From $449Free shipping · Results in 6–8 weeks

Get my Genome Test