################################################################################## # # EMIL module for calculation of absolute free energies of biomolecules. # By Joshua T Berryman, University of Luxembourg, 2013. # # This code is covered by the GPL, except when distributed with non-gpl parts of # AMBER (when it is covered by the same licence as the rest of that distribution). # See licence.txt in the source directory. # # If you use this module for research, please cite: # Joshua T Berryman and Tanja Schilling, # J. Chem. Theory Comput., 2013, 9 (1), 679-686. # # ################################################################################## # Setting up emil, with fake boxinfo: 45.0079 30.9682 34.0451 # read parameters: # N 444 # seed 1902 Displ 0.2 # # Setting well types # marking 220 of 444 atoms as heavy # matching 1 atoms as chain roots # mask ACE,CYS,SER,ALA,LEU,ILE,THR,VAL,ASN,ASH,NME sets type of 444 atom wells as 1 of 7 # # Initialising wells # Well type Einstein Molecule has parameters: # r s.t. E=0: 1 # epsilon: 5 # A/well: -4.30294 # # # Reading well positions from wellsIn.dat # msd part-well is: 0 # Finished setting particle well types: # Null 0 # Einstein Molecule 444 # Conewell Liquid 0 # Harmonic Liquid 0 # Wingwell Liquid 0 # Wobblium 0 # Relative position 0 # 444 heavy or solute atoms. # Building well neighbour list. # Linking particles to wells. # Linked particles to wells, rms distance (heavies): 0 # N heavies or roots: 444 # done setup. # # Energy units: initial beta 1.67741 == 1.0 / 0.596158 # Scaling forces using polynomial mixing functions, at lambda = 0.9 : # scaling amber forces by 0 # scaling soft force by 3.69056e-05 # scaling EMIL forces by 0.81 # Uncorrected EABS is: -2220 # With offset of 0 this is: -2220 # # Reporting EMIL abstract Helmholtz free energy, # according to equations in supp. data of Berryman & Schilling, JCTC 2013: # Total free energy A of abstract model (units kT): -1.910504e+03 # A-Solid: -1.910504e+03 A-Liquid: 0.000000e+00 A-degen: 0.000000e+00 # # emil mol_lambda: 0.9 abstract_lambda: 0.9 # # (mixed) ABS_ENTH(kT) -1798.2 MOL_ENTH 0 TOT -1798.2 # (native) ABS_ENTH(kT) -2220 MOL_ENTH 0 TOT -2220 # nstep: 0 soft_dHdL: -609.268 molec_dHdL: 0.000 abstr_dHdL: -3996.000 nstep: 10 soft_dHdL: -608.293 molec_dHdL: 0.000 abstr_dHdL: -3966.615 nstep: 20 soft_dHdL: -604.136 molec_dHdL: 0.000 abstr_dHdL: -3829.467 nstep: 30 soft_dHdL: -600.036 molec_dHdL: 0.000 abstr_dHdL: -3652.915 nstep: 40 soft_dHdL: -598.534 molec_dHdL: 0.000 abstr_dHdL: -3546.089 nstep: 50 soft_dHdL: -599.994 molec_dHdL: 0.000 abstr_dHdL: -3558.218 nstep: 60 soft_dHdL: -603.990 molec_dHdL: 0.000 abstr_dHdL: -3640.273 nstep: 70 soft_dHdL: -608.760 molec_dHdL: 0.000 abstr_dHdL: -3689.313 nstep: 80 soft_dHdL: -611.218 molec_dHdL: 0.000 abstr_dHdL: -3630.580 nstep: 90 soft_dHdL: -611.532 molec_dHdL: 0.000 abstr_dHdL: -3467.078