Table 3.

Common ligand binding pockets defined for GPCRs with structural information

CXCR4	β2AR	β1AR	BR	SR	D3R	A2A
M1, G3, L31, Q36, F37, M44, T93, T94, T97, S98, F103, E113, G114, A117, T118, P171, L172, Y178, I179, P180, T193, P194, H195, E196, E197, N200, F203, V204, M207, Y268, A272, I275, H278, Q279, S281, P285, M288, T289, A292	M86, T94, T97, S98, F103, E113, G114, A117, T118, G121, E122, I179, P180, I189, Y191, F203, V204, M207, F208, H211, W265, Y268, A269, A272, P285, M288, T289, A292, F293, K296	T94, T97, S98, E113, G114, A117, T118, G121, E122, I179, P180, I189, Y191, F203, V204, M207, F208, H211, W265, Y268, A269, A272, M288, T289, A292, F293, K296	E113, G114, A117, T118, G121, E122, L125, Y178, E181, S186, C187, G188, I189, Y191, M207, F208, H211, F212, F261, W265, Y268, A269, A272, A292, F293, A295, K296	M86, G90, E113, G114, A117, T118, G121, E122, L125, Y178, E181, S186, C187, G188, I189, M207, F208, H211, F212, F261, W265, Y268, A269, A292, K296	T94, E113, G114, A117, T118, G121, E122, P180, G188, I189, V204, M207, F208, H211, W265, Y268, A269, A272, F273, M288, A292, K296	T118, P180, E181, F203, M207, W265, Y268, A269, A272, F283, P285, M288, T289, A292
39	30	27	27	25	22	14

The residues listed are analogous binding pockets mapped onto the rhodopsin structure (1U19). The binding pockets are arranged in the order of decreasing size of the binding pocket (left to right). The numbers in the last row represent the number of residues in the binding pocket.