Traits

Traits linked to CACNB2

calcium voltage-gated channel auxiliary subunit beta 2

The Human Phenotype Ontology links 14 traits to CACNB2, by body system: features seen in people with one of the gene's rare conditions.

Abnormality of the cardiovascular system

Trait	How often it is seen
Complete right bundle branch block	Often (30–79%)
Fainting spell	Often (30–79%)
Heart stops beating	Often (30–79%)
ST segment elevation	Often (30–79%)
Elevated heart rate	Sometimes (5–29%)
First degree atrioventricular block	Sometimes (5–29%)
Paroxysmal ventricular tachycardia	Sometimes (5–29%)
Sick sinus syndrome	Sometimes (5–29%)
Supraventricular tachycardia	Sometimes (5–29%)
Ventricular fibrillation	Sometimes (5–29%)
Trifascicular block	Rarely (1–4%)
Ventricular arrhythmia	Rarely (1–4%)
Quivering upper heart chambers resulting in irregular heartbeat	Not recorded
Shortened QT interval	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 CACNB2 and how often each is seen. Find out more at hpo.jax.org.

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