Traits

Traits linked to MYOZ2

myozenin 2

The Human Phenotype Ontology links 11 traits to MYOZ2, 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
Enlarged and thickened heart muscle	Always
Palpitations	Often (30–79%)
Asymmetric septal hypertrophy	Sometimes (5–29%)
Fainting spell	Sometimes (5–29%)
Left bundle branch block	Sometimes (5–29%)
Quivering upper heart chambers resulting in irregular heartbeat	Sometimes (5–29%)
Sudden cardiac death	Sometimes (5–29%)
Ventricular tachycardia	Sometimes (5–29%)
Left ventricular hypertrophy	Not recorded

Abnormality of the respiratory system

Trait	How often it is seen
Breathing difficulty	Sometimes (5–29%)
Orthopnea	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 MYOZ2 and how often each is seen. Find out more at hpo.jax.org.

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