N-terminal truncations sites by class and residue position (flexible rigid and context-dependent)
Class A No. PDBs each state***
Receptor Uniprot Species* Ina Int Act Pos** No.PDBs
β1 ADRB1 melga 6 -11 6
β1 ADRB1 melga 1 -7 1
D2 DRD2 3 -4 3
β2 ADRB2 1 2 -3 3
δ OPRD 2 -2 2
5-HT2A 5HT2A 2 -1 2
A2A AA2AR 40 3 -1 43
A2A AA2AR 9 5 0 14
β1 ADRB1 melga 17 0 17
D1 DRD1 1 0 1
OT OXYR 1 0 1
β1 ADRB1 melga 1 1 1
β2 ADRB2 1 1 1
β1 ADRB1 melga 1 2 1
β2 ADRB2 1 2 1
D2 DRD2 1 2 1
BLT1 Q9WTK1 cavpo 1 2 1
5-HT2A 5HT2A 2 1 3 3
C5a1 C5AR1 1 3 1
FFA1 FFAR1 4 3 4
κ OPRK 1 3 1
A1 AA1R 1 1 4 2
M4 ACM4 2 4 2