Genetics University — Research, Education, Medical Genetics
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Gene entry

COL9A2

collagen type IX alpha 2 chain

Chromosome
1
Cytoband
1p34.2
Variants (rsID)
16

COL9A2 is a protein-coding gene, meaning the body reads it as instructions to build a protein, located on chromosome 1 (region 1p34.2). Its official name is “collagen type IX alpha 2 chain”. The reference table lists 16 variants (rsID) for this gene.

Clinically classified variants

13 reference-table entries with clinical significance.

  • rs115504008Benignsingle nucleotide variant
  • rs12077871Benignsingle nucleotide variantEpiphyseal dysplasia, multiple, 2
  • rs2228565Benignsingle nucleotide variantEpiphyseal dysplasia, multiple, 2|Connective tissue disorder
  • rs2273195Benignsingle nucleotide variant
  • rs364281Benignsingle nucleotide variant
  • rs3737821Benignsingle nucleotide variantEpiphyseal dysplasia, multiple, 2
  • rs138882727Conflicting interpretationssingle nucleotide variantEpiphyseal dysplasia, multiple, 2
  • rs142974512Conflicting interpretationssingle nucleotide variantEpiphyseal dysplasia, multiple, 2
  • rs148008235Conflicting interpretationssingle nucleotide variantEpiphyseal dysplasia, multiple, 2
  • rs150687987Conflicting interpretationssingle nucleotide variantEpiphyseal dysplasia, multiple, 2|Connective tissue disorder
  • rs201054854Conflicting interpretationssingle nucleotide variantEpiphyseal dysplasia, multiple, 2
  • rs117337557Likely benignsingle nucleotide variant
  • rs117728155Likely benignsingle nucleotide variant

Other listed variants

Public references

Data from the institutional reference table and public NCBI annotation. For education only; not a substitute for medical or genetic counselling.