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	487	63	2	50	1	20	0	623
Receptor - ligand complexes	480	62	2	50	1	20	0	615
Receptor - G protein complexes	94	44	2	4	1	6	0	151
Active-state receptors*	171	46	2	15	1	7	0	242

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**	85	14	1	8	1	4	0	113
Receptor - ligand complexes	309	41	2	41	1	13	0	407
Receptor - G protein complexes	40	14	1	3	1	2	0	61
Active-state receptors*	48	14	1	4	1	2	0	70

*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 2021-09-29.

Structural coverage of GPCR Classes