Traits

Traits linked to PTPA

protein phosphatase 2 phosphatase activator

The Human Phenotype Ontology links 10 traits to PTPA, 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
Intellectual disability	Always
Parkinsonism with favorable response to dopaminergic medication	Always
Resting tremor	Often (30–79%)
Slow movements	Often (30–79%)
Anxiety	Sometimes (5–29%)
Depression	Sometimes (5–29%)
Disinhibition	Sometimes (5–29%)
Willis-Ekbom disease	Sometimes (5–29%)

Abnormality of head or neck

Trait	How often it is seen
Drooling	Sometimes (5–29%)

Abnormality of the musculoskeletal system

Trait	How often it is seen
Rigidity	Sometimes (5–29%)

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 PTPA and how often each is seen. Find out more at hpo.jax.org.

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