how are these restraints obtained?
Hi folks, I am looking at some of the examples provided in the supplementary material, and in particular inclusion of user specified restraints. My question is (i) how are these restraints obtained, (ii) what do the numbers (i.e. RESTRAINT_PARAMETERS)actually refer to. I've looked at the manual but am not much the wiser. Here's the script: -------------------------------------------------------------------------------- INCLUDE SET OUTPUT_CONTROL = 1 1 1 1 1 SET ATOM_FILES_DIRECTORY = '/usr/users/hanlon/Modeller/modeller6v1/atom_files' SET ALNFILE = 'TvLDH-4mdh-1emd_ed.ali' SET KNOWNS = '4mdhA' '1emd_ed' SET SEQUENCE = 'TvLDH' SET STARTING_MODEL = 1 SET ENDING_MODEL = 5 SET HETATM_IO = on CALL ROUTINE = 'model'
SUBROUTINE ROUTINE = 'special_restraints' #ADD_RESTRAINT ATOM_IDS = 'NH1:161' 'O1A:335',; # RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 #ADD_RESTRAINT ATOM_IDS = 'NH2:161' 'O1B:335',; # RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 #ADD_RESTRAINT ATOM_IDS = 'NE2:186' 'O2:335',; # RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 ADD_RESTRAINT ATOM_IDS = 'NH1:161' 'O1A:334',; RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 ADD_RESTRAINT ATOM_IDS = 'NH2:161' 'O1B:334',; RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 ADD_RESTRAINT ATOM_IDS = 'NE2:186' 'O2:334',; RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1
RETURN END_SUBROUTINE --------------------------------------------------------------------------------] Any help much appreciated,
Mike
Hello,
these are used defined restraints i.e. you get them from any source you may have: pull out experiments, NMR data, mutational studies etc or intelligent guessing.
In this specific case the restraints were obtained by measuring distances between the substrate and active site residues in various template structures. These residues and the corresponding distances are well conserved. Once we had these data we rounded them up a little more just to give some freedom during modeling and they were defined as upper limit distances only. More details about it in the original articles: http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=10339579&form=6&... http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&...
details of the command can be found under the ADD_RESTRAINT command in the manual.
Andras
"michael hanlon (BITS)" wrote: > > Hi folks, > I am looking at some of the examples provided in the supplementary material, and in particular inclusion of user specified restraints. My question is (i) how are these restraints obtained, (ii) what do the numbers (i.e. RESTRAINT_PARAMETERS)actually refer to. I've looked at the manual but am not much the wiser. Here's the script: > -------------------------------------------------------------------------------- > INCLUDE > SET OUTPUT_CONTROL = 1 1 1 1 1 > SET ATOM_FILES_DIRECTORY = '/usr/users/hanlon/Modeller/modeller6v1/atom_files' > SET ALNFILE = 'TvLDH-4mdh-1emd_ed.ali' > SET KNOWNS = '4mdhA' '1emd_ed' > SET SEQUENCE = 'TvLDH' > SET STARTING_MODEL = 1 > SET ENDING_MODEL = 5 > SET HETATM_IO = on > CALL ROUTINE = 'model' > > SUBROUTINE ROUTINE = 'special_restraints' > #ADD_RESTRAINT ATOM_IDS = 'NH1:161' 'O1A:335',; # RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 #ADD_RESTRAINT ATOM_IDS = 'NH2:161' 'O1B:335',; # RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 #ADD_RESTRAINT ATOM_IDS = 'NE2:186' 'O2:335',; # RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 > ADD_RESTRAINT ATOM_IDS = 'NH1:161' 'O1A:334',; > RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 > ADD_RESTRAINT ATOM_IDS = 'NH2:161' 'O1B:334',; > RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 > ADD_RESTRAINT ATOM_IDS = 'NE2:186' 'O2:334',; > RESTRAINT_PARAMETERS = 2 1 1 22 2 2 0 3.5 0.1 > > RETURN > END_SUBROUTINE > --------------------------------------------------------------------------------] > Any help much appreciated, > > Mike
participants (2)
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Andras Fiser -
michael hanlon (BITS)