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	1021	137	32	80	1	22	3	1296
Receptor - ligand complexes	1019	137	30	80	1	22	3	1292
Receptor - G protein complexes	524	112	31	8	1	6	3	685
Active-state receptors*	613	117	31	25	1	7	3	797

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**	160	15	9	10	1	4	1	200
Receptor - ligand complexes	672	91	13	49	1	16	2	844
Receptor - G protein complexes	139	15	9	4	1	2	1	171
Active-state receptors*	143	15	9	6	1	2	1	177

*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 2024-01-10.

Structural coverage of GPCR Classes