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)	T2 (Taste 2)	Total
Receptors	766	109	26	61	1	22	3	988
Receptor - ligand complexes	757	107	24	60	1	20	3	972
Receptor - G protein complexes	321	89	26	4	1	6	3	450
Active-state receptors*	404	92	26	18	1	7	3	551

Number of unique receptor complexes

Class (Family)	A (Rhodopsin)	B1 (Secretin)	B2 (Adhesion)	C (Glutamate)	D1 (Ste2-like fungal pheromone)	F (Frizzled)	T2 (Taste 2)	Total
Receptors**	120	15	8	10	1	4	1	159
Receptor - ligand complexes	507	69	11	45	1	14	2	649
Receptor - G protein complexes	92	15	8	3	1	2	1	122
Active-state receptors*	96	15	8	5	1	2	1	128

*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 2022-12-28.

Structural coverage of GPCR Classes