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标题:
求助:拉伸过程蛋白发生旋转
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作者Author:
wh.shen
时间:
2019-6-30 11:45
标题:
求助:拉伸过程蛋白发生旋转
<div align="left">;title = FWS
</div>;cpp = /usr/bin/cpp
constraints = hbonds
constraint_algorithm = LINCS
lincs_order = 4
;shake_tol = 0.0001
comm_mode = Linear
comm_grps = Protein Non-protein
integrator = md
dt = 0.002 ; ps !
nsteps = 2500000 ; total 5000 ps.
nstcomm = 10
nstxout = 5000 ; collect data every 1 ps
nstenergy = 5000
nstvout = 5000
nstlog = 5000
nstxtcout = 1000
xtc_grps = non-water
nstfout = 0
nstlist = 10
ns_type = grid
rlist = 1.0
; Electrostatics
coulombtype = PME
rcoulomb = 1
; van der Waals
vdw-type = switch
rvdw-switch = 0.8
rvdw = 1.0
fourierspacing = 0.12
fourier_nx = 0
fourier_ny = 0
fourier_nz = 0
pme_order = 4
ewald_rtol = 1e-5
optimize_fft = yes
energygrps = SOL protein
; Berendsen temperature coupling is on in two groups
Tcoupl = v-rescale ;nose-hoover
tau_t = 0.5 0.5
tc-grps = Protein Non-protein
ref_t = 300 300
; Pressure coupling is on
Pcoupl = no
tau_p = 1.0
compressibility = 4.5e-5
ref_p = 1.0
refcoord_scaling = com
; Generate velocites is on at 300 K.
gen_vel = yes
gen_temp = 300.0
gen_seed = -1
pull = yes
pull-coord1-type = umbrella
pull-coord1-geometry = direction-periodic
pull-coord1-start = yes
pull-coord1-groups = 1 2
;pull-coord1-origin = 12.5502 14.9339 6.3207
;pull-coord1-init = 14.2249
pull-ngroups = 2
pull-group1-name = pull
pull-group2-name = freez
pull-coord1-vec = -0.0846 -0.9716 0.2208
pull_coord1-rate = 0.005
pull_coord1-k = 500 ; kJ mol^-1 nm^-2
pull_nstxout = 50
pull_nstfout = 50
复制代码
@sobereva ,上面是我的拉伸代码,附件是拉伸过程的动画,不知为何会发生旋转,请问sob老师如何解决?
作者Author:
sobereva
时间:
2019-7-1 09:54
尝试
comm_mode = angular
comm_grps = Protein
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