Catalysis of an oxidation-reduction (redox) reaction in which X-H and Y-H form X-Y.

oxidoreductase activity, acting on X-H and Y-H to form an X-Y bond, with oxygen as acceptor

Catalysis of an oxidation-reduction (redox) reaction in which X-H and Y-H form X-Y and the acceptor is oxygen.

Interacting selectively with an endothelin A receptor.

The process by which antigen-presenting cells express antigen (protein/peptide/lipid) on their cell surface in a form recognizable by lymphocytes.

The process by which antigen-presenting cells express self antigen on their cell surface in a form recognizable by lymphocytes.

The process by which antigen-presenting cells express foreign antigen on their cell surface in a form recognizable by lymphocytes.

antigen processing, endogenous antigen via MHC class I

antigen processing, endogenous antigen via major histocompatibility complex class I

The processes that result in the fragmentation by proteolysis of endogenous antigens and the association of the resulting peptides with MHC class I molecules.

Any process that modulates the rate or frequency of conjugation, the union or introduction of genetic information from compatible mating types that results in a genetically different individual.

antigen processing, exogenous antigen via MHC class II

antigen processing, exogenous antigen via major histocompatibility complex class II

The processes that result in the fragmentation by proteolysis of exogenous antigens and the association of the resulting peptides with MHC class II molecules.

Modulates the activity of a protein kinase, an enzyme which phosphorylates a protein.

Modulation of the activity of a protein phosphatase enzyme.

The chemical reactions involving pteridine, pyrazino(2,3-dipyrimidine), the parent structure of pterins and the pteroyl group.

Growth of epithelial tubes that originate from tracheal pits and grow towards each other to meet and form a continuous open tube called the dorsal trunk. The dorsal trunk extends from the anterior spiracle to the posterior spiracle of the larva and forms the main airway of the insect tracheal system.