A collagen homotrimer of alpha1(XV) chains; a chondroitin sulfate proteoglycan often found in specialized basement membranes.

Any collagen polymer in which collagen triple helices associate to form fibrils.

A collagen heterotrimer containing two alpha1(I) chains and one alpha2(I) chain; type I collagen triple helices associate to form banded fibrils.

A collagen homotrimer of alpha1(II) chains; type II collagen triple helices associate to form fibrils.

A collagen homotrimer of alpha1(III) chains; type III collagen triple helices associate to form fibrils.

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 nets within basement membranes.

The specific actions or reactions of an organism that are associated with reproduction.

A collagen heterotrimer containing type V alpha chains; [alpha1(V)]2alpha2(V) and alpha1(V)alpha2(V)alpha3(V) trimers have been observed; type V collagen triple helices associate to form fibrils.

A collagen heterotrimer containing type VI alpha chains in alpha1(VI)alpha2(VI)alpha3(VI) trimers; type VI collagen triple helices associate to form beaded fibrils.

Catalysis of the reaction: sphinganine + NADP+ = 3-dehydrosphinganine + NADPH + H+.

A defense response that is mediated by cells.

The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

A highly soluble, elongated protein complex found in blood plasma and involved in clot formation. It is converted into fibrin monomer by the action of thrombin. In the mouse, fibrinogen is a hexamer, 46 nm long and 9 nm maximal diameter, containing two sets of nonidentical chains (alpha, beta, and gamma) linked together by disulfide bonds.