Trait
Small hippocampus
Clinical name: Hypoplastic hippocampus
Underdevelopment of the hippocampus.
Summary
- Also called
- Underdeveloped hippocampus
- Body system
- Abnormality of the nervous system
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome Test19 genes linked to Small hippocampus
Changes in these genes cause rare conditions in which Small hippocampus 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 |
|---|---|---|
| CLCN3Cl-/H+ antiporter 3 | Always | In 1 condition |
| MTHFD1methylenetetrahydrofolate dehydrogenase, cyclohydrolase and formyltetrahydrofolate synthetase 1 | Always | In 1 condition |
| VPS51VPS51 subunit of GARP complex | Always | In 1 condition |
| MDGA2MAM domain containing glycosylphosphatidylinositol anchor 2 | Very often (80–99%) | In 1 condition |
| STAMBPSTAM binding protein | Very often (80–99%) | In 1 condition |
| BORCS5BLOC-1 related complex subunit 5 | Often (30–79%) | In 1 condition |
| EML1EMAP like 1 | Often (30–79%) | In 1 condition |
| NDE1nudE neurodevelopment protein 1 | Often (30–79%) | In 1 condition |
| SCN1Asodium voltage-gated channel alpha subunit 1 | Often (30–79%) | In 1 condition |
| TCF4transcription factor 4 | Often (30–79%) | In 1 condition |
| ATP1A3ATPase Na+/K+ transporting subunit alpha 3 | Sometimes (5–29%) | In 1 condition |
| CARS2cysteinyl-tRNA synthetase 2, mitochondrial | Sometimes (5–29%) | In 1 condition |
| GRIN1glutamate ionotropic receptor NMDA type subunit 1 | Sometimes (5–29%) | In 1 condition |
| TUBA1Atubulin alpha 1a | Sometimes (5–29%) | In 1 condition |
| VPS13Avacuolar protein sorting 13 homolog A | Sometimes (5–29%) | In 1 condition |
| WSB2WD repeat and SOCS box containing 2 | Sometimes (5–29%) | In 1 condition |
| CAMTA1calmodulin binding transcription activator 1 | Rarely (1–4%) | In 1 condition |
| POU4F1POU class 4 homeobox 1 | Rarely (1–4%) | In 1 condition |
| SLC35A2solute carrier family 35 member A2 | Rarely (1–4%) | 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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