Figure 5
From: New Insights on Signal Propagation by Sensory Rhodopsin II/Transducer Complex
(A) “V”-shaped NpSRII/NpHtrII complex in P21212 space group. (B) “U”-shaped NpSRII/NpHtrII complex in I212121 space group. Figures on the left show two subsequent crystal layers as seen along the membrane plane. Figures on the right show a single crystal layer as seen perpendicular to the membrane plane. NpSRII molecules are shown in green; parts of NpHtrII molecules resolved in the crystal structure are shown in blue. Models of NpHtrII that continue to the HAMP domain are shown in red. Residues 83–136 in these models are modeled by homology with NMR structure 2ASW. In (A) a big steric clash can be seen between the model of the HAMP domain from one crystal layer and the corresponding NpHtrII molecule from the other crystal layer. There are no observed steric clashes between the model of the HAMP domain from one layer and NpSRII/NpHtrII molecules from the other layer in (B).
