Open Babel: chains.h Source File

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# chains.h

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    00001 /**********************************************************************
    00002 chains.h - Parse for macromolecule chains and residues
    00003
    00004 Copyright (C) 1998-2001 by OpenEye Scientific Software, Inc.
    00005 Some portions Copyright (C) 2001-2006 by Geoffrey R. Hutchison
    00006 Some portions Copyright (C) 2008 by Tim Vandermeersch
    00007
    00008 This file is part of the Open Babel project.
    00009 For more information, see <http://openbabel.org/>
    00010
    00011 This program is free software; you can redistribute it and/or modify
    00012 it under the terms of the GNU General Public License as published by
    00013 the Free Software Foundation version 2 of the License.
    00014
    00015 This program is distributed in the hope that it will be useful,
    00016 but WITHOUT ANY WARRANTY; without even the implied warranty of
    00017 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00018 GNU General Public License for more details.
    00019 ***********************************************************************/
    00020
    00021 #ifndef OB_CHAINS_H
    00022 #define OB_CHAINS_H
    00023
    00024 #define MaxMonoAtom 20
    00025 #define MaxMonoBond 20
    00026
    00027 #include <openbabel/babelconfig.h>
    00028 #include <vector>
    00029
    00030 namespace OpenBabel
    00031 {
    00032
    00033   class OBAtom;
    00034   class OBMol;
    00035
    00037   // implementation in chains.cpp
    00038   struct Template;
    00039   typedef struct Template Template;
    00040
    00049   class OBAPI OBChainsParser
    00050   {
    00051     public:
    00052
    00053       OBChainsParser(void);
    00054       ~OBChainsParser(void);
    00055
    00062       bool PerceiveChains(OBMol &mol, bool nukeSingleResidue = false);
    00063
    00064     private: // internal methods
    00065
    00067
    00068
    00075       bool DetermineHetAtoms(OBMol &);
    00077
    00079
    00080
    00089       bool DetermineConnectedChains(OBMol &);
    00098       unsigned int RecurseChain(OBMol &mol, unsigned int i, int c);
    00100
    00102
    00103
    00110       bool DeterminePeptideBackbone(OBMol &);
    00121       void ConstrainBackbone(OBMol &mol, Template *templ, int tmax);
    00125       bool MatchConstraint(OBAtom *atom, int mask);
    00130       bool Match2Constraints(Template *templ, OBAtom *na, OBAtom *nb);
    00135       bool Match3Constraints(Template *templ, OBAtom *na, OBAtom *nb, OBAtom *nc);
    00140       bool Match4Constraints(Template *templ, OBAtom *na, OBAtom *nb, OBAtom *nc, OBAtom *nd);
    00150       void TracePeptideChain(OBMol &mol, unsigned int i, int r);
    00152
    00154
    00155
    00161       bool  DeterminePeptideSidechains(OBMol &);
    00173       int IdentifyResidue(void *tree, OBMol &mol, unsigned int seed, int resno); // ByteCode *
    00181       void  AssignResidue(OBMol &mol, int r, int c, int i);
    00183
    00185
    00186
    00190       bool  DetermineHydrogens(OBMol &);
    00192
    00194
    00195
    00201       void  SetResidueInformation(OBMol &, bool nukeSingleResidue);
    00203
    00205
    00206
    00213       bool  DetermineNucleicBackbone(OBMol &);
    00221       void  TraceNucleicChain(OBMol &, unsigned int i, int r);
    00228       bool  DetermineNucleicSidechains(OBMol &);
    00230
    00235       void  SetupMol(OBMol &);
    00239       void  ClearResidueInformation(OBMol &mol);
    00243       void CleanupMol();
    00250       void  DefineMonomer(void **tree, int resid, const char *smiles); // ByteCode **
    00255       int   IdentifyElement(char *ptr);
    00261       const char *ParseSmiles(const char *smiles, int prev);
    00265       void DumpState();
    00266
    00267       void *PDecisionTree;
    00268       void *NDecisionTree;
    00269
    00270       int   ResMonoAtom[MaxMonoAtom];
    00271       int   ResMonoBond[MaxMonoBond];
    00272
    00273       std::vector<unsigned short> bitmasks;
    00274       std::vector<bool>           visits;
    00275       std::vector<unsigned char>  resids;
    00276       std::vector<unsigned char>  flags;
    00277       std::vector<bool>           hetflags;
    00278       std::vector<int>            atomids;
    00279       std::vector<short>          resnos;
    00280       std::vector<short>          sernos;
    00281       std::vector<char>           hcounts;
    00282       std::vector<char>           chains;
    00283     };
    00284
    00285 }
    00286 #endif // OB_CHAINS_H
    00287

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