Traits

Traits linked to AKAP9

A-kinase anchoring protein 9

The Human Phenotype Ontology links 13 traits to AKAP9, 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
Fainting spell	Always
Prolonged QTc interval	Always
Complete right bundle branch block	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%)

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 AKAP9 and how often each is seen. Find out more at hpo.jax.org.

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