COL9A1
Musculoskeletal System · Chondrogenesis & Articular Cartilage Stability
What does COL9A1 add to the cartilage around joints?
COL9A1 encodes one component of type IX collagen. This collagen contributes to the supportive network that gives cartilage its combination of strength and flexibility.
- Common Gene Name
- collagen type IX alpha 1 chain
- NCBI Gene ID
- 1297
- Chromosome
- 6
Clinical Evidence Status
Established disease relationship
These labels describe available evidence about a gene. They do not classify your variant or recommend a treatment.
Answer Sources
Explore supporting evidence (3 records)
| Condition or drug | Evidence | Grade / status | Context | Source |
|---|---|---|---|---|
| Stickler syndrome, type 4 | ClinGen gene-disease validity | Definitive | Autosomal recessive | View source 2025-10-08 |
| Stickler syndrome | MedlinePlus related condition | Association type varies; no grade assigned here | View source 2013-01 | |
| Multiple epiphyseal dysplasia | MedlinePlus related condition | Association type varies; no grade assigned here | View source 2013-01 |
Source snapshot: 2026-09-09. Consumer text updated: 2026-09-10. Source dates describe the cited records, not a new clinical review.
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