Trait
Extra ribs
Clinical name: Supernumerary ribs
The presence of more than 12 rib pairs.
Summary
- Body system
- Abnormality of the musculoskeletal system
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome Test18 genes linked to Extra ribs
Changes in these genes cause rare conditions in which Extra ribs 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 |
|---|---|---|
| KDM6Blysine demethylase 6B | Always | In 1 condition |
| TGFBR1transforming growth factor beta receptor 1 | Always | In 1 condition |
| GDF11growth differentiation factor 11 | Very often (80–99%) | In 1 condition |
| ACTBactin beta | Sometimes (5–29%) | In 1 condition |
| AFF3ALF transcription elongation factor 3 | Sometimes (5–29%) | In 1 condition |
| ANK1ankyrin 1 | Sometimes (5–29%) | In 1 condition |
| DOT1LDOT1 like histone lysine methyltransferase | Sometimes (5–29%) | In 1 condition |
| MAFMAF bZIP transcription factor | Sometimes (5–29%) | In 1 condition |
| MTX2metaxin 2 | Sometimes (5–29%) | In 1 condition |
| RPS26ribosomal protein S26 | Sometimes (5–29%) | In 1 condition |
| SKISKI proto-oncogene | Sometimes (5–29%) | In 1 condition |
| IKBKGinhibitor of nuclear factor kappa B kinase regulatory subunit gamma | Not recorded | In 1 condition |
| NIPBLNIPBL cohesin loading factor | Not recorded | In 1 condition |
| PAX3paired box 3 | Not recorded | In 1 condition |
| PTCH1patched 1 | Not recorded | In 1 condition |
| SIX6SIX homeobox 6 | Not recorded | In 1 condition |
| SOX2SRY-box transcription factor 2 | Not recorded | In 1 condition |
| TBX6T-box transcription factor 6 | 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.
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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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