Receptor names:
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GPCR-Arrestin complexes coverage
▬ β-Arrestin1 ▬ β-Arrestin2 ▬ Arrestin-C ▬ S-Arrestin
β-Arrestin1 β-Arrestin2 Arrestin-C S-arrestin Total
Class A (Rhodopsin) 13 0 0 1 14
Class B1 (Secretin) 2 0 0 0 2
Class B2 (Adhesion) 1 0 0 0 1
Class C (Glutamate) 2 0 0 0 2
Class D1 (Ste2-like fungal pheromone) 0 0 0 0 0
Class F (Frizzled) 0 0 0 0 0
Class O1 (Olfactory/extra-nasal 1) 0 0 0 0 0
Class O2 (Olfactory/extra-nasal 2) 0 0 0 0 0
Class T2 (Taste 2) 0 0 0 0 0
Class V (Vomeronasal) 0 0 0 0 0
Class U (Unclassified) 0 0 0 0 0
Total Complexes 17 1 0 1 19
Receptor only 1 1 1 1 4
Total 18 2 1 2 23
β-Arrestin1 β-Arrestin2 Arrestin-C S-arrestin Total
Class A (Rhodopsin) 27 1 0 4 32
Class B1 (Secretin) 9 0 0 0 9
Class B2 (Adhesion) 1 0 0 0 1
Class C (Glutamate) 3 0 0 0 3
Class D1 (Ste2-like fungal pheromone) 0 0 0 0 0
Class F (Frizzled) 0 0 0 0 0
Class O1 (Olfactory/extra-nasal 1) 0 0 0 0 0
Class O2 (Olfactory/extra-nasal 2) 0 0 0 0 0
Class T2 (Taste 2) 0 0 0 0 0
Class V (Vomeronasal) 0 0 0 0 0
Class U (Unclassified) 0 0 0 0 0
Total Complexes 40 1 0 4 45
Receptor only 35 15 1 19 70
Total 75 16 1 23 115

Specific sets of structures can be downloaded from the Structures page.
The latest released structure is from 2026-07-15.