# # Note that most of the comments here were taken from sample # input files that came with APBS. You can find APBS at # http://agave.wustl.edu/apbs/ # Note that APBS is GPL'd code. # read mol pqr /net/lutefisk/slars/groel_md/1XCK/analysis/24_browdye/trans.pqr # read molecule 1 end elec mg-auto dime 353 193 353 # number of find grid points # calculated by psize.py cglen 253.798100 137.535100 252.832500 # coarse mesh lengths (A) fglen 169.293000 100.903000 168.725000 # fine mesh lengths (A) # calculated by psize.py cgcent 2.975500 8.259500 13.450500 # (could also give (x,y,z) form psize.py) #known center fgcent 2.975500 8.259500 13.450500 # (could also give (x,y,z) form psize.py) #known center lpbe # solve the full nonlinear PBE with npbe #lpbe # solve the linear PBE with lpbe bcfl sdh # Boundary condition flag # 0 => Zero # 1 => Single DH sphere # 2 => Multiple DH spheres # 4 => Focusing # #ion 1 0.000 2.0 # Counterion declaration: ion charge 1 conc 0.150000 radius 2.000000 # Counterion declaration: ion charge -1 conc 0.150000 radius 1.800000 # ion ion charge 2 conc 0.000000 radius 2.000000 # ion ion charge -2 conc 0.000000 radius 2.000000 # ion pdie 2.000000 # Solute dielectric sdie 78.000000 # Solvent dielectric chgm spl2 # Charge disc method # 0 is linear splines # 1 is cubic b-splines mol 1 # which molecule to use srfm smol # Surface calculation method # 0 => Mol surface for epsilon; # inflated VdW for kappa; no # smoothing # 1 => As 0 with harmoinc average # smoothing # 2 => Cubic spline srad 1.400000 # Solvent radius (1.4 for water) swin 0.3 # Surface cubic spline window .. default 0.3 temp 310.000000 # System temperature (298.15 default) sdens 10.000000 # Specify the number of grid points per square-angstrom to use in Vacc object. Ignored when srad is 0.0 (see srad) or srfm is spl2 (see srfm). There is a direct correlation between the value used for the Vacc sphere density, the accuracy of the Vacc object, and the APBS calculation time. APBS default value is 10.0. #gamma 0.105 # Surface tension parameter for apolar forces (in kJ/mol/A^2) # only used for force calculations, so we don't care, but # it *used to be* always required, and 0.105 is the default calcenergy no # Energy I/O to stdout # 0 => don't write out energy # 1 => write out total energy # 2 => write out total energy and all # components calcforce no # Atomic forces I/O (to stdout) # 0 => don't write out forces # 1 => write out net forces on molecule # 2 => write out atom-level forces write pot dx pymol-generated # What to write .. this says write the potential in dx # format to a file. end quit