COL1A2 (Collagen alpha-2(I) chain) variants and mutations

COL1A2 (also known as Collagen alpha-2(I) chain) is a human protein-coding gene encoding a collagen alpha-2(I) chain protein. It contributes one of the three chains of type I collagen, providing tensile strength to bone, skin, tendon, blood vessels, and other connective tissues. Pathogenic variants can cause osteogenesis imperfecta, Ehlers-Danlos phenotypes, and related connective-tissue disorders. This analysis covers 2,280 COL1A2 variants and mutations. Of these, 64% have computational variant effect predictions. Disease context includes osteogenesis imperfecta type 2, osteogenesis imperfecta type 3, and osteogenesis imperfecta type 4. Example COL1A2 variants include M1?, M1L, and L2I.

Variant analysis overview

Variant and mutation evidence

Clinical, disease, and population context

Protein structure and variant hotspots

Data sources

Evidence in this analysis draws on EBI Proteins Variation, UniProt, gnomAD v4, EuropePMC, 3D Hotspot Analysis, Interaction Network Analysis, AlphaFold DB, gnomAD constraint, Open Targets, ClinGen, MaveDB, LitVar.

Notable COL1A2 variants

Examples include M1?, M1L, L2I, L2L, S3R, S3G, F4L, V5E. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.