LigandsKiller Cells, NaturalAntigens, LyCD40 LigandFas Ligand ProteinProtein BindingBinding SitesRANK LigandSignal TransductionMolecular Sequence DataModels, MolecularNK Cell Lectin-Like Receptor Subfamily AMembrane GlycoproteinsAmino Acid SequenceTNF-Related Apoptosis-Inducing LigandCD30 LigandChromonesMorpholinesCells, CulturedOX40 LigandCell LineProtein Structure, TertiaryReceptors, NK Cell Lectin-LikeKineticsMice, Inbred C57BLProtein ConformationBinding, CompetitiveReceptors, ImmunologicCrystallography, X-RayMembrane ProteinsReceptors, Cell Surface4-1BB LigandRecombinant ProteinsStructure-Activity Relationship