Interacting selectively with a pheromone, a substance, or characteristic mixture of substances, that is secreted and released by an organism and detected by a second organism of the same or a closely related species, in which it causes a specific reaction, such as a definite behavioral reaction or a developmental process.

Catalysis of the reaction: 4-beta-D-galactosyl-O-beta-D-xylosylprotein + UDP-galactose = 3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosylprotein + UDP.

hydrolase activity, acting on ether bonds

Catalysis of the hydrolysis of any ether or thioether bond, -O- or -S- respectively.

Catalysis of the hydrolysis of a thioether bond, -S-.

Catalysis of the hydrolysis of an ether bond, -O-.

Catalysis of the release of a N-terminal proline from a peptide.

Catalysis of the hydrolysis of a dipeptide.

Catalysis of the hydrolysis of N-terminal di- or tripeptides from a polypeptide chain.

Any of the various assemblies in which collagen chains form a left-handed triple helix; may assemble into higher order structures.

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.

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.