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pga043/extract_physical_frames_msld

Extract physical frames from a lambda-dynamics trajectory

extract_physical_frames_MSλD

  1. Make a new directory within your main direcotry containing all the different run directories.

  2. The README file has three portions
    i). lambdas.sh => this script will try to extract lambda values from output_*_0 file corresponding to the saving frequecny of
    dcd file
    ii). traj_extract.inp => this CHARMM file will merge all the dominant frames from different dcds within a given replica.
    Example: dcd_1, dcd_2, dcd_3 and so on witihn run82a
    so, by the end you would have generated 5 dcds files corresponding to 5 replicas. \

    iii). orient.inp => this will orient and merge the 5 dcd files into one dcd file. \

So, this is for protein mutation, single site with single mutation (but, it will be same procedure for more mutations at a single site).

In the end, you will get two trajectories, one for WT and one for mutant which have dominant frames from x runs (production runs) in 5 replicas or however many replicas that you ran.

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Created January 15, 2025
Updated October 21, 2025