Binding to a Toll protein, a transmembrane receptor.

Binding to a torso (tor) protein, a receptor tyrosine kinase.

Binding to a member of the death receptor (DR) family. The DR family falls within the tumor necrosis factor receptor superfamily and is characterized by a cytoplasmic region of ~80 residues termed the death domain (DD).

Binding to a member of the tumor necrosis factor receptor superfamily.

Binding to scavenger receptors, a family of proteins that are expressed on myeloid cells and are involved in the uptake of effete cellular components and foreign particles.

The activity of a soluble extracellular gene product that interacts with a receptor to effect a change in the activity of the receptor to control the survival, growth, differentiation and effector function of tissues and cells.

The activity of a gene product that interacts with a receptor to effect a change in the activity of the receptor. Ligands may be produced by the same, or different, cell that expresses the receptor. Ligands may diffuse extracellularly from their point of origin to the receiving cell, or remain attached to an adjacent cell surface (e.g. Notch ligands).

Binding to a cytokine receptor.

OBSOLETE. A response to a stimulus that involves only one organism.

Binding to a ciliary neurotrophic factor receptor.

Binding to an erythropoietin receptor.

A biological process that directly contributes to the process of producing new individuals, involving another organism.

A biological process that directly contributes to the process of producing new individuals by one or two organisms. The new individuals inherit some proportion of their genetic material from the parent or parents.

Binding to a granulocyte macrophage colony-stimulating factor receptor.

Binding to a growth factor receptor.

A multicellular organism process which involves another multicellular organism of the same or different species.