Exemplo n.º 1
0
 def set_types_from_directory(self, directory):
     if self.verbose:
         print("reading directory ", directory)
     filelist = glob.glob(directory + "/*.pdb*")
     if self.verbose:
         print("len(filelist)=", len(filelist))
     ad4_typer = AutoDock4_AtomTyper()
     type_dict = {}
     all_types = ""
     for f in filelist:
         ftype = os.path.splitext(f)[-1]
         if ftype != ".pdbqt":
             print("skipping ", f, " not in PDBQT format!")
             continue
         m = Read(f)[0]
         m_types = ""
         m_types = " ".join(list(set(m.allAtoms.autodock_element)))
         self.getSideLengths(m)  # sets ligand.center
         npts = m.npts
         # only make the box bigger, do NOT make it smaller
         for ix, val in enumerate(self.gpo['npts']['value']):
             if npts[ix] > val:
                 self.gpo['npts']['value'][ix] = npts[ix]
                 if self.verbose:
                     print(m.name, " increased grid dimension ", ix, " to ", npts[ix])
         all_types = all_types + m_types
         if self.verbose:
             print("added ", m_types, " atom types in directory ", directory)
     print("end: all_types = ", all_types)
     self.gpo['ligand_types']['value'] = all_types
     if self.verbose:
         print("all ligand_types for ", directory, "= ", self.gpo['ligand_types']['value'])
Exemplo n.º 2
0
 def set_types_from_directory(self, directory):
     if self.verbose:
         print "reading directory ", directory
     filelist = glob.glob(directory + "/*.pdb*")
     if self.verbose:
         print "len(filelist)=", len(filelist)
     ad4_typer = AutoDock4_AtomTyper()
     type_dict = {}
     for f in filelist:
         m = Read(f)[0]
         m.buildBondsByDistance()
         ad4_typer.setAutoDockElements(m)
         for a in m.allAtoms:
             type_dict[a.autodock_element] = 1
         self.getSideLengths(m)  #sets ligand.center
         npts = m.npts
         #only make the box bigger, do NOT make it smaller
         for ix, val in enumerate(self.gpo['npts']['value']):
             if npts[ix] > val:
                 self.gpo['npts']['value'][ix] = npts[ix]
                 if self.verbose:
                     print m.name, " increased grid dimension ", ix, " to ", npts[
                         ix]
     d_types = type_dict.keys()
     if self.verbose:
         print "found ", d_types, " atom types in directory ", directory
     self.gpo['ligand_types']['value'] = string.join(d_types)
     if self.verbose:
         print "now ligand_types is ", self.gpo['ligand_types']['value']
Exemplo n.º 3
0
 def getTypes(self, molecule):
     if not len(molecule.allAtoms.bonds[0]):
         molecule.buildBondsByDistance()
     ad4_typer = AutoDock4_AtomTyper(verbose=self.verbose)
     ad4_typer.setAutoDockElements(molecule)
     dict = {}
     for a in molecule.allAtoms:
         dict[a.autodock_element] = 1
     d_types = dict.keys()
     d_types.sort()
     mol_types = d_types[0]
     for t in d_types[1:]:
         mol_types = mol_types + " " + t
     if self.verbose: print "end of getTypes: types=", mol_types, ' class=', mol_types.__class__
     return mol_types
Exemplo n.º 4
0
 def set_ligand4(self, ligand_filename, types=None):
     #this should set ligand_types
     #print "in set_ligand4: types=", types
     if types is None:
         ligand = Read(ligand_filename)[0]
         ligand.buildBondsByDistance()
         ad4_typer = AutoDock4_AtomTyper()
         ad4_typer.setAutoDockElements(ligand)
         dict = {}
         for a in ligand.allAtoms:
             dict[a.autodock_element] = 1
         d_types = dict.keys()
         d_types.sort()
         types = d_types[0]
         for t in d_types[1:]:
             types = types + " " + t
     self['ligand_types']['value'] = types
     #print "set_ligand4: self['ligand_types']['value']=", self['ligand_types']['value']
     self.ligand_filename = os.path.basename(ligand_filename)
     #print "GPO: set ligand_filename to ", self.ligand_filename
     self.ligand_stem = os.path.splitext(self.ligand_filename)[0]
Exemplo n.º 5
0
 def set_receptor4(self, receptor_filename, types=None):
     #this should set receptor_types
     if types is None:
         receptor = Read(receptor_filename)[0]
         receptor.buildBondsByDistance()
         ad4_typer = AutoDock4_AtomTyper()
         ad4_typer.setAutoDockElements(receptor)
         dict = {}
         for a in receptor.allAtoms:
             dict[a.autodock_element] = 1
         d_types = dict.keys()
         d_types.sort()
         types = d_types[0]
         for t in d_types[1:]:
             types = types + " " + t
     self['receptor_types']['value'] = types
     basename = os.path.basename(receptor_filename)
     self.receptor_filename = basename
     self.receptor_stem = os.path.splitext(basename)[0]
     if receptor_filename != '':
         self['receptor']['value'] = basename
         self['gridfld']['value'] = self.receptor_stem + '.maps.fld'
         self['elecmap']['value'] = self.receptor_stem + '.e.map'
         self['dsolvmap']['value'] = self.receptor_stem + '.d.map'
            sys.exit()

    if not pdbqs_filename:
        print('pdbqs_to_pdbqt: pdbqs_filename_stem must be specified.')
        usage()
        sys.exit()

    #what about nucleic acids???
    mols = Read(pdbqs_filename)
    if verbose: print('read ', pdbqs_filename)
    mol = mols[0]
    #fix number for problem files with alternative positions
    mol.allAtoms.number = list(range(1, len(mol.allAtoms) + 1))
    #possible clean-up???
    #need to type atoms + assign babel_types
    AD4_typer = AutoDock4_AtomTyper(set_aromatic_carbons=False)
    AD4_typer.setAutoDockElements(mol)
    if verbose:
        print("set autodock4 autodock_element for ", mol.name)
    if charges_to_add is not None:
        preserved = {}
        preserved_types = preserve_charge_types.split(',')
        for t in preserved_types:
            if not len(t): continue
            ats = mol.allAtoms.get(lambda x: x.autodock_element == t)
            for a in ats:
                if a.chargeSet is not None:
                    preserved[a] = [a.chargeSet, a.charge]

    if charges_to_add == 'gasteiger':
        GasteigerChargeCalculator().addCharges(mol.allAtoms)
    if not pdbq_filename:
        print('pdbq_to_pdbqt: stem of pdbq_filename must be specified.')
        usage()
        sys.exit()

    #what about nucleic acids???

    mols = Read(pdbq_filename)
    if verbose: print('read ', pdbq_filename)
    mol = mols[0]
    mol.buildBondsByDistance()

    #possible clean-up???
    #need to type atoms + assign babel_types
    AD4_typer = AutoDock4_AtomTyper()
    AD4_typer.setAutoDockElements(mol)
    if verbose:
        print("set autodock4 autodock_element for ", mol.name)

    writer = PdbqtWriter()
    fptr = open(pdbqt_filename, 'w')
    ctr = 0
    for line in mol.parser.allLines:
        #for at in mol.allAtoms:
        if find(line, 'ATOM') < 0 and find(line, "HETA") < 0:
            fptr.write(line)
        else:
            name = strip(line[12:16])
            #ats = mol.allAtoms.get(lambda x: x.name==name)
            ##there could be (?) two atoms with the same name