Traits

Traits linked to LTC4S

leukotriene C4 synthase

The Human Phenotype Ontology links 5 traits to LTC4S, 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
Abnormally small head	Not recorded

Abnormality of the musculoskeletal system

Trait	How often it is seen
Low muscle tone	Not recorded

Abnormality of the nervous system

Trait	How often it is seen
Global developmental delay	Not recorded

Growth abnormality

Trait	How often it is seen
Faltering weight in infancy	Not recorded

Laboratory abnormality

Trait	How often it is seen
Reduced circulating leukotriene C4 concentration	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 LTC4S and how often each is seen. Find out more at hpo.jax.org.

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