A minimal ligand binding pocket within a network of correlated mutations identified by multiple sequence and structural analysis of G protein coupled receptors

Table 4 Defining a minimal GPCR pocket

B1	B2	B3	B4	B5	B6	B7
M1, G3, L31, Q36, F37, M44, M86, G90, T93, T94, T97, S98, F103, E113, G114, A117, T118, G121, E122, L125, P171, L172, Y178, I179, P180, E181, S186, C187, G188, I189, Y191, T193, P194, H195, E196, E197, N200, F203, V204, M207, F208, H211, F212, F261, W265, Y268, A269, A272, F273, I275, H278, Q279, S281, F283, P285, M288, T289, A292, F293, A295, K296	M86, T94, T97, S98, F103, E113, G114, A117, T118, G121, E122, L125, Y178, I179, P180, E181, S186, C187, G188, I189, Y191, F203, V204, M207, F208, H211, F212, F261, W265, Y268, A269, A272, P285, M288, T289, A292, F293, K296	T94, T97, S98, E113, G114, A117, T118, G121, E122, Y178, I179, P180, E181, G188, I189, Y191, F203, V204, M207, F208, H211, W265, Y268, A269, A272, P285, M288, T289, A292, F293, K296	T94, E113, G114, A117, T118, G121, E122, P180, I189, F203, V204, M207, F208, H211, W265, Y268, A269, A272, M288, T289, A292, K296	E113, G114, A117, T118, G121, E122, P180, I189, M207, F208, H211, W265, Y268, A269, A272, M288, A292, K296	E113, G114, A117, T118, M207, W265, Y268, A269, A272, A292	T118, M207, Y268, A292
61	38	31	22	18	10	4

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 residues in the binding pocket. B1, B2, B3, B4, B5, B6 and B7 represent common sets of residues present in at least one, two, three, four, five, six and seven known receptor ligand binding pockets, respectively.

ISSN: 2046-1682