• Structure coverage
• Receptor-ligand complexes
• Odorant receptors

Number of structures, including multiple of same receptor (complex)

Class (Family)	A (Rhodopsin)	B1 (Secretin)	B2 (Adhesion)	C (Glutamate)	D1 (Ste2-like fungal pheromone)	F (Frizzled)	O1 (fish-like odorant)	O2 (tetrapod specific odorant)	T2 (Taste 2)	Other GPCRs	Total
Receptors	1276	144	34	102	1	32	4	0	17	0	1610
Receptor - ligand complexes	1274	144	34	102	1	32	4	0	17	0	1608
Receptor - G protein complexes	730	119	32	17	1	10	2	0	15	0	926
Active-state receptors*	825	124	32	37	1	12	3	0	15	0	1049

Number of unique receptor complexes

Class (Family)	A (Rhodopsin)	B1 (Secretin)	B2 (Adhesion)	C (Glutamate)	D1 (Ste2-like fungal pheromone)	F (Frizzled)	O1 (fish-like odorant)	O2 (tetrapod specific odorant)	T2 (Taste 2)	Other GPCRs	Total
Receptors**	181	15	9	13	1	7	2	0	2	0	230
Receptor - ligand complexes	808	96	13	56	1	19	3	0	6	0	1002
Receptor - G protein complexes	165	15	9	5	1	5	2	0	2	0	204
Active-state receptors*	168	15	9	7	1	5	2	0	2	0	209

*Active state is defined as agonist-bound and opened intracellular TM bundle. **Receptor-orthologues are only counted once.

Specific sets of structures can be downloaded from the Structures page.
The latest released structure is from 2024-09-25.