kappa = 4.60796
omega = 0.199924
phi0A = 0.310057
phi0C = 0.131281
phi0G = 0.270954
phi1A = 0.387643
phi1C = 0.184594
phi1G = 0.191715
phi2A = 0.376369
phi2C = 0.200426
phi2G = 0.204706