Model of BETP’s (purple sticks, left panel) binding pocket,
adapted from ref. [19], illustrating
covalent modification of Cys347 in TM6 at the GLP-1R (cyan) in active
conformation and additional putative influences of surrounding residues, such as
van-der Waals interactions with hydrophobic residues or halogen attraction of
Lys346; model was modified for A1-like (green sticks, middle panel) and A3-like
(pale blue sticks, right panel) 2-sulfonyl pyrimidine analogs; illustrations
generated using Chimera 1.13.1.