1 XDRF2PDB, XDRF2PDB-M, XDRF2X - programs to convert compressed
2 Cartesian coordinate files from UNRES into ASCII formats
3 ------------------------------------------------------------
10 2. Programs and their functions
14 4. Command lines and files
25 * This software is provided free of charge to academic users, subject to the
26 condition that no part of it be sold or used otherwise for commercial
27 purposes, including, but not limited to its incorporation into commercial
28 software packages, without written consent from the authors. For permission
29 contact Prof. H. A. Scheraga, Cornell University.
31 * This software package is provided on an "as is" basis. We in no way warrant
32 either this software or results it may produce.
34 * Reports or publications using this software package must contain an
35 acknowledgment to the authors and the NIH Resource in the form commonly
39 2. PROGRAMS AND THEIR FUNCTONS
40 ------------------------------
42 The following three programs can be used to extract conformations from
43 compressed Cartesian (cx) files from UNRES:
45 xdrf2pdb - takes a single trajectory file and converts it into PDB format.
47 xdrf2pdb-m - takes a multiple-trajectory file from UNRES/MREMD simulations
48 and enables the user to extract conformation of a particular
49 trajectory and save them to a PDB file.
51 xdrf2x - takes a single trajectory file and converts it into UNRES Cartesian
54 xdrf2ang - takes a single trajectory file and calculates UNRES backbone
55 angles (theta and gamma).
60 Run make all on your system to install all programs or make <program>
61 to install a particular program. You might need to run make in the
62 xdrf subdirectory beforehand or point to the xdrf library that is on another
63 directory in the Makefile.
65 The program compiles on all known Fortran compilers, including gfortran.
67 4. COMMAND LINE AND FILES
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70 For xdrf2pdb and xdrf2pdb-m, you'll need to prepare the UNRES sequence file
71 in either one- or three-letter code.
77 xdrf2pdb one/three seqfile cxfile [freq] [start] [end] [pdbfile]
81 one or three indicates in what format the sequence will be read
83 seqfile - the file with the sequence:
85 one-letter format: 80A1
87 three-letter format: 20(A3,1X)
89 Note that the sequence must match exactly the UNRES sequence
91 cxfile - full name of the trajectory file with compressed Cartesian coordinates.
93 freq (1) - conformation sampling frequency (each freq-th conformation will
96 start (1) - the first conformation to be saved to PDB file
98 end (1000000000) the last conformation to be saved to PDB file
100 pdbfile (cxfile with extension changed from cx to pdb) - the output PDB file
105 xdrf2pdb-m one/three seqfile cxfile [ntraj] [itraj]
107 cxfile - the name of the compressed trajectory file from an UNRES/MREMD run
108 carried out with TRAJ1FILE (conformations from all trajectories
109 output to a single file)
111 ntraj (1) - number of trajectories in the multi-trajectory run
113 itraj (1) - the number of trajectory to be extracted
115 The xdrf2pdb program to convert cx files to pdb files
117 The source is in xdrf2pdb; it requires the libraries in xdrf
123 xdrf2x cxfile [is] [ie] [freq] > x_file
125 The meaning of the the arguments is as in section 4.1; the conformations
126 are output in UNRES Cartesian coordinate format to stdout.
132 xdrf2ang one/three seqfile cxfile [freq] [start] [end] [angfile]
134 The meaning of the first six parameters is as in section 4.1; angfile is
135 the name of the output angle file; is assigned cx file name with the cx
136 extension changed to ang, if not present.
142 Faculty of Chemistry, University of Gdansk
143 ul. Sobieskiego 18, 80-952 Gdansk Poland.
144 phone: +48 58 523 5430
146 e-mail: adam@chem.univ.gda.pl
148 Dr. Cezary Czaplewski
149 Faculty of Chemistry, University of Gdansk
150 ul. Sobieskiego 18, 80-952 Gdansk Poland.
151 phone: +48 58 523 5430
153 e-mail: czarek@chem.univ.gda.pl
155 Prepared by Adam Liwo, 11/26/11