Skip to main content
. 2019 Oct 14;118(4):909–921. doi: 10.1016/j.bpj.2019.10.007

Table 2.

Sodium Binding to the MOP Receptor

Kd (MD)
Inactive

D216ECL2/C127ECL2 0.50
Orthosteric site 0.60
Allosteric site 0.01

Active Charged D2.50

G1312.67/D216ECL2 1.18
Orthosteric site 0.36
Allosteric site 1.29

Active Neutral D2.50

D216ECL2/N1272.63 0.62
E310ECL3 1.79
Orthosteric site 3.36

Estimates of Na+ binding affinities (in Molar units) to sites sampled by MD.