Dynamic Cholesterol-Conditioned Dimerization of the G Protein Coupled Chemokine Receptor Type 4
Fig 8
Relative orientation angles used to describe the orientation of the monomers in the receptor dimer.
β describes the position of monomer B with respect to monomer A, φ is the rotation of monomer B around its z-axis, χ the angle under which monomer B “sees” monomer A. The axes x and y were placed into the monomer in a way that the symmetric TM5,6/TM5,6 dimer results in β = 0 and χ = 0.