forked from lijiext/lammps
45 lines
873 B
Plaintext
45 lines
873 B
Plaintext
# Solvated 5-mer peptide
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units real
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atom_style full
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pair_style lj/charmm/coul/long 8.0 10.0 10.0
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bond_style harmonic
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angle_style charmm
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dihedral_style charmm
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improper_style harmonic
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kspace_style pppm 0.0001
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read_data data.peptide
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neighbor 2.0 bin
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neigh_modify delay 5
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timestep 2.0
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group peptide type <= 12
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group one id 2 4 5 6
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group two id 80 82 83 84
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group ref id 37
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group colvar union one two ref
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fix 1 all nvt temp 275.0 275.0 100.0 tchain 1
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fix 3a one spring couple ref 100.0 0.0 0.0 0.0 10.0
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fix 3b two spring couple ref 100.0 0.0 0.0 0.0 10.0
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fix 2a ref setforce 0.0 0.0 0.0
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fix 4 all shake 0.0001 10 100 b 4 6 8 10 12 14 18 a 31
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#dump 1 colvar custom 1 dump.spring.lammpstrj id xu yu zu fx fy fz
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#dump_modify 1 sort id
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variable sp equal f_3a+f_3b
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thermo_style custom step temp etotal pe ke epair ebond v_sp
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thermo 10
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run 100
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