Trait
Increased total T cell count
Abnormal increase in the absolute number of T cells, commonly characterized as CD3+ lymphocytes, per microliter of blood, compared to a reference range for a given sex and age-group. These may include both TCR alpha/beta and gamma/delta T cells.
Summary
- Also called
- CD3+ T-cell lymphocytosis, Increase in T cell count, Increased absolute T cell count, T cell lymphocytosis
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome Test6 genes linked to Increased total T cell count
Changes in these genes cause rare conditions in which Increased total T cell count 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 |
|---|---|---|
| LYNLYN proto-oncogene, Src family tyrosine kinase | Always | In 1 condition |
| BTNL2butyrophilin like 2 | Often (30–79%) | In 1 condition |
| HLA-DRB1major histocompatibility complex, class II, DR beta 1 | Often (30–79%) | In 1 condition |
| IKBKGinhibitor of nuclear factor kappa B kinase regulatory subunit gamma | Often (30–79%) | In 1 condition |
| MAP3K14mitogen-activated protein kinase kinase kinase 14 | Often (30–79%) | In 1 condition |
| NFKBIANFKB inhibitor alpha | 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.
Broader traits
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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