Trait
Underdeveloped tragus
Decreased posterolateral protrusion of the tragus.
Summary
- Also called
- Hypoplastic tragus, Hypotrophic tragus, Small tragus
- Body system
- Abnormality of the ear
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
Read the genes linked to Underdeveloped tragus, and the rest of your genome, with one test.
From $449Free shipping · Results in 6–8 weeks
Get my Genome Test7 genes linked to Underdeveloped tragus
Changes in these genes cause rare conditions in which Underdeveloped tragus 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 |
|---|---|---|
| NUP188nucleoporin 188 | Always | In 1 condition |
| RAP1BRAP1B, member of RAS oncogene family | Always | In 1 condition |
| EFTUD2elongation factor Tu GTP binding domain containing 2 | Very often (80–99%) | In 1 condition |
| KCTD1potassium channel tetramerization domain containing 1 | Very often (80–99%) | In 2 conditions |
| KAT6Alysine acetyltransferase 6A | Often (30–79%) | In 1 condition |
| SF3B2splicing factor 3b subunit 2 | Sometimes (5–29%) | In 1 condition |
| GLI2GLI family zinc finger 2 | Not recorded | 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.
One test. A lifetime of answers.
From $449Free shipping · Results in 6–8 weeks