Traits

Traits linked to CSNK2B

casein kinase 2 beta

The Human Phenotype Ontology links 9 traits to CSNK2B, by body system: features seen in people with one of the gene's rare conditions.

Abnormality of head or neck

Trait	How often it is seen
Big lower jaw	Often (30–79%)
Downturned corners of mouth	Often (30–79%)
Open mouth	Often (30–79%)
Protruding tongue	Often (30–79%)
Smooth philtrum	Often (30–79%)

Abnormality of the nervous system

Trait	How often it is seen
Intellectual disability	Always
Delayed ability to walk	Often (30–79%)
Myoclonic seizure	Often (30–79%)

Abnormality of the musculoskeletal system

Trait	How often it is seen
Generalized decreased muscle tone	Often (30–79%)

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 CSNK2B and how often each is seen. Find out more at hpo.jax.org.

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