Number of unique ligands per receptor class

Class
(Family)		 Total Class A (Rhodopsin) Class B1 (Secretin) Class B2 (Adhesion) Class C (Glutamate) Class F (Frizzled) Taste 2
No. ligands 141,632 132,354 2,927 0 5,736 610 5
Average no. ligands/GPCR 287 461 195 0 261 55 0
No. GPCRs with ligand (%) 227 (46) 200 (70) 14 (93) 0 (0) 11 (50) 1 (9) 1 (4)
Specific sets of ligands can be downloaded from the ligand browser
Structure statistics was last updated: 2019-01-21


Ligand coverage of GPCR Classes


Circle colors indicate a number of ligands:
< 100
< 500
< 1000
1000+

Class A
(Rhodopsin)




Class B1
(Secretin)

Class B2
(Adhesion)

Class C
(Glutamate)

Class F
(Frizzled)

Taste 2