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	1017	137	32	80	1	22	4	0	3	0	1296
Receptor - ligand complexes	1015	137	30	80	1	22	4	0	3	0	1292
Receptor - G protein complexes	522	112	31	8	1	6	2	0	3	0	685
Active-state receptors*	610	117	31	25	1	7	3	0	3	0	797

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**	158	15	9	10	1	4	2	0	1	0	200
Receptor - ligand complexes	669	91	13	49	1	16	3	0	2	0	844
Receptor - G protein complexes	137	15	9	4	1	2	2	0	1	0	171
Active-state receptors*	141	15	9	6	1	2	2	0	1	0	177

*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 2024-01-10.

• Structure coverage
• Receptor-ligand complexes
• Odorant receptors