Trait

Abnormal circulating apolipoprotein concentration

Any deviation from the normal concentration of apolipoprotein in the blood circulation.

HPO HP:0025201

Also called: Abnormal apolipoprotein level
Body system: Laboratory abnormality

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4 genes linked to Abnormal circulating apolipoprotein concentration

Changes in these genes cause rare conditions in which Abnormal circulating apolipoprotein concentration is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.

Gene	How often it is seen	Conditions
MTTPmicrosomal triglyceride transfer protein	Very often (80–99%)	In 1 condition
ATP6V0A2ATPase H+ transporting V0 subunit a2	Often (30–79%)	In 1 condition
ATP6V1AATPase H+ transporting V1 subunit A	Often (30–79%)	In 1 condition
ATP6V1E1ATPase H+ transporting V1 subunit E1	Often (30–79%)	In 1 condition

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.

Narrower traits

Broader traits

Blood protein disease

Where this comes from

The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
Data release 2026.10.16-c6eea6bf.

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