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	476	63	2	43	1	20	0	605
Receptor - ligand complexes	469	62	2	43	1	20	0	597
Receptor - G protein complexes	85	44	2	4	1	6	0	142
Active-state receptors*	162	46	2	13	1	7	0	231

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**	83	14	1	8	1	4	0	111
Receptor - ligand complexes	301	41	2	36	1	13	0	394
Receptor - G protein complexes	37	14	1	3	1	2	0	58
Active-state receptors*	45	14	1	3	1	2	0	66

*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 2021-08-25.

Structural coverage of GPCR Classes