GROMACS version: 2020.2
GROMACS modification: No
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I have tried to use the enforced rotation approach to rotate the N-terminal Domain of the solvated protein. Then, I have received the following error message:
Fatal error:
Number of atoms in file rotref.0.trr (180116) does not match the number of
atoms in rotation group (152)!
Any suggestions? I have been used the following mdp commands:
; Enforced rotation: No or Yes
rotation = Yes
; Output frequency for angle, torque and rotation potential energy for the whole group
rot-nstrout = 10
; Output frequency for per-slab data (angles, torques and slab centers)
rot-nstsout = 10
; Number of rotation groups
rot-ngroups = 1
; Rotation group name
rot-group0 = TM_A_TM_B
; Rotation potential. Can be iso, iso-pf, pm, pm-pf, rm, rm-pf, rm2, rm2-pf, flex, flex-t, flex2, flex2-t
rot-type0 = iso-pf
; Use mass-weighting of the rotation group positions
rot-massw0 = yes
; Rotation vector, will get normalized
rot-vec0 = 0 0 1
; Rotation rate [degree/ps] and force constant [kJ/(molnm^2)]
rot-rate0 = 10.0
rot-k0 = 500.0
; Rotation rate [degree/ps] and force constant [kJ/(molnm^2)]
rot-rate0 = 10.0
rot-k0 = 500.0
; Slab distance for flexible axis rotation [nm]
rot-slab-dist0 = 1.5
; Minimum value of Gaussian function for the force to be evaluated (for flex* potentials)
rot-min-gauss0 = 0.001
; Value of additive constant epsilon’ [nm^2] for rm2* and flex2* potentials
rot-eps0 = 0.0001
; Fitting method to determine angle of rotation group (rmsd, norm, or potential)
rot-fit-method0 = norm
; For fit type ‘potential’, nr. of angles around the reference for which the pot. is evaluated
rot-potfit-nsteps0 = 21
; For fit type ‘potential’, distance in degrees between two consecutive angles
rot-potfit-step0 = 0.25
What did I do wrong here? Any suggestions?
Thank you in advance.
Masa