This example demonstrates the simultaneous use of plane and point restraints:
coordinates @file1 vector do (refx=x) (all) vector do (refy=y) (all) vector do (refz=z) (all) vector do ( harmonic=0.0 ) ( all ) vector do ( harmonic=20.0 ) ( resid 1 and name ca ) vector do ( harmonic=-20.0 ) ( resid 10 and name ca ) restraints harmonic exponent=2 normal=(0 0 1) end flags include harm end dynamics Verlet nstep=1000 timestep=0.001 firsttemp=300 endThe
atom of residue 1 will be harmonically restrained to
its initial position in ``file1''. However, the 
atom of
residue 10 will be restrained only in the z direction; its motions are
unrestricted parallel to the x-y plane.