Genopathy
Gene-Disorder Association · Article
Gene
COL9A2
Collagen Type IX Alpha 2 Chain
Disorder
Epiphyseal Dysplasia, Multiple, 2
First reported 1996
Supporting publications 8
Key publication · gene–disorder A mutation in the gene encoding the alpha 2 chain of the fibril-associated collagen IX, COL9A2, causes multiple epiphyseal dysplasia (EDM2).Nature genetics · 1996
Key publication · disorder Multiple epiphysial dysplasia.British medical journal · 1958
Manually curated
Association Review

In brief

The association between COL9A2 (Collagen Type IX Alpha 2 Chain) and Epiphyseal Dysplasia, Multiple, 2 is well established and manually curated, with its 3 contributing sources — 2 of them expert-curated — recording a known molecular basis and likely-pathogenic variants.

Sources 3
Clinical variants 111
Symptoms 24
Compounds 0
Trials 0
Publications 8
01
At a glance

Association overview

A cited synthesis of the gene–disorder association, with a clinical-actionability summary where the evidence supports one.

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02
Provenance

Evidence and sources

3 sources

Every contributing database and publication behind this association, with evidence type, strength, accessions and deep links.

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03
COL9A2

The gene

1 source summary

A gene summary alongside the source descriptions it was distilled from.

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04
Epiphyseal Dysplasia, Multiple, 2

The disorder

7 database identifiers

The disorder’s summary, prevalence, aliases and cross-reference identifiers (OMIM, Orphanet, MONDO, ICD-10, MedGen).

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05
Phenotype

Clinical features

20 clinical features

The disorder’s clinical features (HPO) grouped by body system, each with observed frequency and penetrance.

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06
ClinVar and variant evidence

Genetic basis

111 clinical variants

ClinVar variants reported for this pair, with disorder-specific significance, review status, molecular consequence and origin.

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07
Mechanism overlap

Shared mechanisms

Biological pathways and phenotype concepts shared by the gene and the disorder, with supporting publications.

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08
Literature

Reading

8 publications

Publications linking the gene and the disorder, with title, authors, journal, year and citation metrics.

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09
Provenance

References & sources

13 references

Every source and publication cited across this dossier, as one numbered reference list.

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