Re: [AMBER] Co-ordinates switching in CPPTRAJ output

From: Carlos Simmerling <carlos.simmerling.gmail.com>
Date: Fri, 24 Sep 2021 11:07:42 -0400

the columns look ok to me if you use a fixed width font - see below. or did
you mean something else?

ATOM 123 CA GLN 123 68.309 29.110 1.473 1.00 0.00
 C
ATOM 124 CA LEU 124 66.353 31.970 -0.226 1.00 0.00
 C
ATOM 125 CA ARG 125 67.566 34.771 -2.529 1.00 0.00
 C
ATOM 126 CA ASP 126 67.312 38.488 -2.652 1.00 0.00
 C
ATOM 127 CA SER 127 35.179 -2.383 68.197 1.00 0.00
 C
ATOM 128 CA LYS 128 37.592 0.697 68.026 1.00 0.00
 C
ATOM 129 CA SER 129 40.316 -1.856 66.986 1.00 0.00
 C
ATOM 130 CA SER 130 11.099 79.441 67.583 1.00 0.00
 C
ATOM 131 CA ASP 131 14.290 80.687 69.232 1.00 0.00
 C
ATOM 132 CA LYS 132 72.574 38.092 -1.012 1.00 0.00
 C
ATOM 133 CA SER 133 70.558 35.313 0.680 1.00 0.00
 C
ATOM 134 CA VAL 134 68.398 34.435 3.699 1.00 0.00
 C

On Fri, Sep 24, 2021 at 10:37 AM Annabelle Hartt <ah16287.bristol.ac.uk>
wrote:

> Hi,
>
> I have been trying to run a CPPTRAJ script to generate a trajectory with
> just CA atoms using the following script:
> parm <name>.prmtop
> trajin nowaters/<name>_nowaters.nc
> autoimage
> rms first .CA
> average crdset AVG
> run
> rms ref AVG .CA
> # strip and output results.
> strip !.CA outprefix CA
> trajout CA_traj/<name>_CA.nc
> run
> clear all
>
> However this was resulting in output trajectories where the X, Y and Z
> co-ordinates were sometimes in the wrong column as demonstrated by residues
> 127-131 in this section of a pdb file :
> ATOM 123 CA GLN 123 68.309 29.110 1.473 1.00 0.00
> C
> ATOM 124 CA LEU 124 66.353 31.970 -0.226 1.00 0.00
> C
> ATOM 125 CA ARG 125 67.566 34.771 -2.529 1.00 0.00
> C
> ATOM 126 CA ASP 126 67.312 38.488 -2.652 1.00 0.00
> C
> ATOM 127 CA SER 127 35.179 -2.383 68.197 1.00 0.00
> C
> ATOM 128 CA LYS 128 37.592 0.697 68.026 1.00 0.00
> C
> ATOM 129 CA SER 129 40.316 -1.856 66.986 1.00 0.00
> C
> ATOM 130 CA SER 130 11.099 79.441 67.583 1.00 0.00
> C
> ATOM 131 CA ASP 131 14.290 80.687 69.232 1.00 0.00
> C
> ATOM 132 CA LYS 132 72.574 38.092 -1.012 1.00 0.00
> C
> ATOM 133 CA SER 133 70.558 35.313 0.680 1.00 0.00
> C
> ATOM 134 CA VAL 134 68.398 34.435 3.699 1.00 0.00
> C
>
> I have not been able to figure out what has caused this – but thought
> there may be an issue in CPPTRAJ?
>
> Many thanks,
> Annabelle
> _______________________________________________
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> AMBER.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber
>
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Received on Fri Sep 24 2021 - 08:30:02 PDT
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