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	607	90	9	61	1	20	0	788
Receptor - ligand complexes	593	87	9	60	1	18	0	768
Receptor - G protein complexes	195	71	9	4	1	6	0	286
Active-state receptors*	269	73	9	18	1	7	0	377

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**	101	14	6	10	1	4	0	136
Receptor - ligand complexes	391	55	7	45	1	13	0	512
Receptor - G protein complexes	65	14	6	3	1	2	0	91
Active-state receptors*	72	14	6	5	1	2	0	100

*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 2022-05-04.

Structural coverage of GPCR Classes