Table 5. Thermodynamic Decomposition of the Entropic Contribution to Binding of Histamine to rRaHBP2(D24R) at 300 K.

Description	MUP-IPMPa	rRaHBP2(D24R)−histamine
TΔS°i
protein DOF	−0.8 ± 3.8	+29.8 ± 9.9
ligand DOF	ca. −37	ca. −59
−TΔS°solvL
ligand desolvation	+26.7 ± 8.4	+67.1
TΔS°solvPL − TΔS°solvP
desolvation of protein/complex	+0.4 ± 9.2	−47 ± 10.2
TΔS°b
observed entropy	−10.7 ± 0.5	−9.3 ± 2.5

^aData taken from ref (4).