A collagen heterotrimer containing type IV alpha chains; [alpha1(IV)]2alpha2(IV) trimers are commonly observed, although more type IV alpha chains exist and may be present in type IV trimers; type IV collagen triple helices associate to form 3 dimensional nets within basement membranes. (Gene Ontology, GO_0005587)
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6 proteins localized to the collagen type iv trimer cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.