• 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	1305	146	34	105	1	34	5	3	17	0	1650
Receptor - ligand complexes	1303	146	34	105	1	34	5	3	17	0	1648
Receptor - G protein complexes	752	121	32	18	1	11	3	3	15	0	956
Active-state receptors*	847	126	32	38	1	13	4	3	15	0	1079

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**	182	15	9	13	1	7	3	3	2	0	235
Receptor - ligand complexes	820	96	13	59	1	19	4	3	6	0	1021
Receptor - G protein complexes	165	15	9	5	1	5	3	3	2	0	208
Active-state receptors*	168	15	9	7	1	5	3	3	2	0	213

*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 2024-10-30.