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	612	90	9	61	1	20	0	793
Receptor - ligand complexes	605	88	9	60	1	18	0	781
Receptor - G protein complexes	199	71	9	4	1	6	0	290
Active-state receptors*	273	73	9	18	1	7	0	381

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**	105	14	6	10	1	4	0	140
Receptor - ligand complexes	399	55	7	45	1	13	0	520
Receptor - G protein complexes	69	14	6	3	1	2	0	95
Active-state receptors*	76	14	6	5	1	2	0	104

*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 2022-07-27.

Structural coverage of GPCR Classes