FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term collagen type IV trimer ID (Ontology) GO:0005587 (Gene Ontology)
Definition 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.
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Data ClassFieldDirect annotations
Genes (FBgn)GO_CELLULAR_COMPONENT
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 collagen type IV trimer (all annotations which use CV term, excluding "NOT" statements)
     part_of | collagen type IV trimer
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collagen trimer
 |__network-forming collagen trimer_________
extracellular matrix                        |
 |__network-forming collagen trimer_________|
complex of network-forming collagens        |
 |__network-forming collagen trimer_________|
 |__chicken-wire-like collagen network______|
collagenous component of basement membrane  |
 |__chicken-wire-like collagen network______|
extracellular protein-containing complex    |
 |__network-forming collagen trimer_________|
                                            collagen type IV trimer  3 rec.
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Is a network-forming collagen trimer
Part of chicken-wire-like collagen network
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Wikipedia:Collagen_type_IV