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Traits

Traits linked to MS4A1

membrane spanning 4-domains A1

The Human Phenotype Ontology links 5 traits to MS4A1, by body system: features seen in people with one of the gene's rare conditions.

Abnormality of the immune system

TraitHow often it is seen
Antinuclear antibody positivityAlways
Combined immunodeficiencyAlways
Recurrent respiratory infectionsAlways
Recurrent bacterial infectionsNot recorded

Abnormal cellular phenotype

TraitHow often it is seen
Chronic decreased circulating total IgG concentrationAlways

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 MS4A1 and how often each is seen. Find out more at hpo.jax.org.

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