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L-x-S-I- [GP] motif. a) Aspartate symporter (PDB ID: 2nwl, chain B). The L-x-S-I- [GP] motif is colored in yellow. The protein is colored according to the different regions with respect to the lipid bilayer: red Helix core, cyan Cytoplasm, blue Extracellular and green Reentrant. b) Serine protease (PDB ID: 2ic8, chain A). The L-x-S-I- [GP] motif is colored in yellow. c) cytochrome b (PDB ID: 1kb9, chain C). The L-x-S-I- [GP] motif is colored in yellow.
