Contacts of the helix formed by residues 241 - 261 (chain C) in PDB entry 3OFN


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with ALA 241 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  GLY*     6.2     3.1    -      -       -      -
     77C  LEU*     3.6    24.7    -      -       +      +
     78C  PHE*     4.1    19.3    +      -       -      +
     79C  GLY*     4.5     6.3    -      -       -      +
    239C  SER      3.8     1.4    +      -       -      -
    240C  GLU*     1.3    76.0    -      -       -      +
    242C  ALA*     1.3    68.1    +      -       -      +
    243C  PRO*     3.3     2.7    -      -       +      -
    244C  LEU*     3.0    23.1    +      -       +      +
    245C  GLN*     3.6     3.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 242 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240C  GLU      3.5     3.2    +      -       -      -
    241C  ALA*     1.3    70.7    -      -       -      +
    243C  PRO*     1.4    64.8    -      -       +      +
    245C  GLN*     2.9    12.9    +      -       -      +
    246C  TYR*     2.8    26.7    +      -       -      +
    279C  ALA*     3.6    23.1    -      -       +      +
    282C  GLN*     3.9    31.8    -      -       +      +
    283C  LEU*     3.5    17.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 243 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  GLY      5.3     2.0    -      -       -      +
     64C  MET*     5.8     1.1    -      -       -      -
     76C  VAL*     3.4    35.4    -      -       +      -
     77C  LEU      3.5    15.9    -      -       -      +
     78C  PHE*     3.4    23.1    -      -       +      -
    241C  ALA*     3.3     6.3    -      -       +      -
    242C  ALA*     1.4    93.0    -      -       +      +
    244C  LEU*     1.3    57.2    +      -       -      +
    246C  TYR*     3.4    11.0    -      -       +      +
    247C  LEU*     2.8    33.1    +      -       -      +
    283C  LEU*     3.7    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 244 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  PHE*     3.3    56.5    -      -       +      +
    111C  ASP*     6.0     4.5    -      -       +      +
    112C  ALA*     3.1    34.2    -      -       +      +
    113C  LEU*     4.3    17.3    -      -       +      +
    236C  ALA*     3.0    16.8    -      -       +      +
    240C  GLU*     3.4    32.3    -      -       +      +
    241C  ALA*     3.0    15.4    +      -       +      +
    243C  PRO*     1.3    74.4    -      -       -      +
    245C  GLN*     1.3    60.2    +      -       -      +
    247C  LEU*     5.2     1.3    -      -       +      -
    248C  ALA      3.3     9.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 245 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  VAL*     3.5    16.2    -      -       +      +
    209C  GLY*     3.2    25.9    +      -       -      -
    236C  ALA*     3.5    18.4    -      -       +      +
    237C  THR      3.5    17.3    +      -       -      +
    238C  ALA*     3.6    10.9    +      -       -      +
    240C  GLU*     3.2    22.4    +      -       +      +
    241C  ALA      3.9     8.7    -      -       -      +
    242C  ALA*     2.9     9.5    +      -       -      +
    244C  LEU*     1.3    75.3    -      -       -      +
    246C  TYR*     1.3    65.8    +      -       -      +
    248C  ALA*     3.7     0.5    +      -       -      +
    249C  PRO*     3.4    17.3    -      -       -      +
    275C  LYS*     4.6     5.7    -      -       -      +
    276C  GLN*     3.5     8.9    -      -       -      +
    279C  ALA*     3.7    14.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 246 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  MET*     4.6    12.9    -      -       +      +
     66C  LEU*     4.8    10.3    -      -       +      +
    132C  GLN*     4.3     7.0    +      -       -      -
    242C  ALA      2.8    15.6    +      -       -      +
    243C  PRO*     3.4    10.8    -      -       +      +
    245C  GLN*     1.3    76.7    -      -       -      +
    247C  LEU*     1.3    81.6    +      -       +      +
    249C  PRO*     3.5     1.6    -      -       -      +
    250C  PHE*     3.4    13.7    -      +       -      -
    276C  GLN*     3.1    28.4    +      -       -      -
    279C  ALA*     3.9     7.7    -      -       +      +
    280C  TYR*     3.8    29.2    -      +       +      +
    283C  LEU*     3.7    28.0    -      -       +      -
    303C  LEU*     3.4    32.1    -      -       +      -
    306C  ARG*     3.8    18.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 247 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  MET*     4.0    19.3    -      -       +      -
     78C  PHE*     3.9    20.9    -      -       +      -
     97C  VAL*     3.5    29.8    -      -       +      -
    112C  ALA*     4.7     4.7    -      -       +      +
    113C  LEU*     4.1    13.9    -      -       +      -
    131C  ALA*     4.7     7.0    -      -       +      -
    132C  GLN*     5.7     3.1    -      -       +      +
    243C  PRO*     2.8    13.4    +      -       +      +
    244C  LEU*     4.3     6.1    -      -       +      +
    245C  GLN      3.3     0.2    -      -       -      -
    246C  TYR*     1.3   105.0    -      -       +      +
    248C  ALA*     1.3    56.6    +      -       -      +
    249C  PRO*     3.4     0.7    -      -       -      -
    250C  PHE*     2.8    32.3    +      -       +      +
    251C  THR*     3.1    24.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112C  ALA*     4.0    10.5    -      -       +      +
    206C  VAL*     3.5    13.7    -      -       +      +
    208C  VAL*     4.3     3.8    -      -       +      -
    234C  VAL*     3.9     6.3    -      -       +      +
    236C  ALA*     3.5    22.2    -      -       +      +
    244C  LEU      3.3    18.7    +      -       -      +
    245C  GLN      4.0     2.2    -      -       -      +
    246C  TYR      3.5     0.2    -      -       -      -
    247C  LEU*     1.3    77.8    -      -       -      +
    249C  PRO*     1.4    67.6    -      -       +      +
    251C  THR*     3.8     6.8    +      -       -      -
    252C  ALA*     3.1    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  VAL*     3.9     9.2    -      -       +      -
    208C  VAL*     3.9    13.7    -      -       +      -
    245C  GLN      3.4    14.1    -      -       -      +
    246C  TYR      3.5     6.5    -      -       -      +
    247C  LEU      3.5     1.8    -      -       -      -
    248C  ALA*     1.4    92.1    -      -       +      +
    250C  PHE*     1.3    57.4    +      -       -      +
    252C  ALA*     3.9     0.6    -      -       +      +
    253C  ALA*     3.1    19.8    +      -       -      +
    270C  TYR*     3.4    29.3    -      -       +      -
    273C  LEU*     4.5     3.4    -      -       +      -
    276C  GLN*     3.5    28.5    -      -       +      +
    307C  LEU*     3.4    23.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 250 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131C  ALA*     3.3    17.4    -      -       +      +
    132C  GLN*     3.4    34.5    -      -       -      +
    246C  TYR*     3.4    23.8    -      +       -      -
    247C  LEU*     2.8    14.4    +      -       +      +
    249C  PRO*     1.3    77.9    -      -       -      +
    251C  THR*     1.3    62.6    +      -       -      +
    253C  ALA*     3.2    17.0    -      -       -      +
    254C  SER      3.3     5.5    +      -       -      -
    276C  GLN*     3.4    23.8    -      -       -      -
    303C  LEU*     3.3    34.8    -      -       +      -
    306C  ARG*     3.8    14.8    -      -       +      -
    307C  LEU*     3.5    27.8    -      -       +      -
    310C  ARG*     3.3    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 251 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  VAL*     5.0     3.4    -      -       +      -
     98C  ASP      5.0     0.9    -      -       -      -
     99C  VAL*     3.4    31.7    -      -       +      +
    112C  ALA*     2.7    23.2    +      -       -      +
    113C  LEU*     5.3     0.7    -      -       +      -
    131C  ALA*     3.5    29.8    -      -       +      +
    234C  VAL*     4.9     2.1    -      -       -      +
    247C  LEU*     3.1    23.4    +      -       +      +
    248C  ALA*     3.8     4.5    +      -       -      -
    250C  PHE*     1.3    71.7    -      -       -      +
    252C  ALA*     1.3    62.0    +      -       -      +
    254C  SER*     3.4     9.5    +      -       -      -
    255C  ILE*     3.0    32.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204C  VAL*     4.2     3.5    -      -       +      +
    206C  VAL*     3.5    28.5    -      -       +      -
    234C  VAL*     3.8    17.5    -      -       +      +
    248C  ALA      3.1    19.1    +      -       -      +
    249C  PRO      3.9     2.0    -      -       -      +
    250C  PHE      3.3     0.4    -      -       -      -
    251C  THR*     1.3    77.9    +      -       -      +
    253C  ALA*     1.3    66.4    +      -       -      +
    255C  ILE*     3.2    14.4    +      -       -      +
    256C  GLY*     2.9    19.2    +      -       -      -
    268C  ILE*     3.5     8.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 253 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249C  PRO      3.1    14.8    +      -       -      +
    250C  PHE*     3.2    12.3    -      -       -      +
    252C  ALA*     1.3    74.5    -      -       -      +
    254C  SER*     1.3    50.1    +      -       -      +
    256C  GLY*     2.7     7.3    +      -       -      -
    257C  GLU*     2.6    38.4    +      -       -      +
    268C  ILE*     3.4    11.1    -      -       -      +
    270C  TYR*     4.0    13.0    -      -       -      +
    307C  LEU*     4.4     3.8    -      -       +      -
    310C  ARG*     3.6    25.1    -      -       +      +
    323C  LEU*     4.3     9.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 254 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  VAL*     4.0     8.1    -      -       -      -
    101C  VAL*     3.6    10.5    -      -       -      +
    129C  SER*     3.7    19.3    +      -       -      -
    130C  ARG      2.5    29.5    +      -       -      -
    131C  ALA*     3.6     0.5    +      -       -      -
    133C  VAL*     4.0     0.5    -      -       -      +
    250C  PHE      3.3     6.4    +      -       -      -
    251C  THR      3.4     8.5    -      -       -      -
    253C  ALA*     1.3    76.5    -      -       -      +
    255C  ILE*     1.3    63.7    +      -       -      +
    257C  GLU*     3.2    22.0    +      -       -      +
    258C  TRP      3.4     8.1    +      -       -      -
    310C  ARG*     2.7    19.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 255 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  VAL*     4.6     9.4    -      -       +      -
    100C  PRO      3.8    11.9    -      -       -      +
    101C  VAL*     3.7    10.7    -      -       +      +
    102C  GLY      5.0     2.6    +      -       -      +
    105C  LEU*     3.7    36.6    -      -       +      -
    110C  VAL*     4.4     6.1    -      -       +      -
    111C  ASP      5.8     0.2    -      -       -      +
    114C  GLY*     5.4     2.7    -      -       -      -
    204C  VAL*     4.3     5.8    -      -       +      -
    232C  ILE*     3.8    26.2    -      -       +      -
    234C  VAL*     3.5    29.4    -      -       +      -
    251C  THR*     3.0    21.6    +      -       -      +
    252C  ALA*     3.3     9.0    -      -       -      +
    253C  ALA      3.2     0.2    -      -       -      -
    254C  SER*     1.3    75.6    -      -       -      +
    256C  GLY*     1.3    61.2    +      -       -      +
    258C  TRP*     3.6    15.8    -      -       -      +
    259C  PHE*     3.8     9.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 256 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204C  VAL*     4.2    14.1    -      -       -      -
    252C  ALA      2.9     9.9    +      -       -      -
    253C  ALA*     2.7    10.5    +      -       -      -
    255C  ILE*     1.3    71.9    -      -       -      +
    257C  GLU*     1.3    62.5    +      -       -      +
    258C  TRP      3.2     0.2    -      -       -      -
    259C  PHE*     3.2    19.5    +      -       -      +
    260C  ARG*     3.7     2.8    +      -       -      +
    266C  ALA*     3.5    17.3    -      -       -      +
    268C  ILE*     5.4     0.7    -      -       -      -
    323C  LEU*     3.9    18.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 257 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  SER*     5.6     2.0    +      -       -      +
    133C  VAL*     3.6    15.5    -      -       -      +
    134C  LYS      4.3     5.0    -      -       -      +
    253C  ALA      2.6    17.0    +      -       -      +
    254C  SER*     3.2    11.0    +      -       -      +
    256C  GLY*     1.3    70.3    -      -       -      +
    258C  TRP*     1.3    53.4    +      -       -      +
    260C  ARG*     3.1    40.0    +      -       -      +
    261C  ASP*     2.8    45.0    +      -       -      +
    310C  ARG*     3.0    56.9    +      -       -      +
    323C  LEU*     4.0    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 258 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  VAL*     4.3    15.0    -      -       +      -
    102C  GLY*     3.9    27.6    -      -       -      +
    103C  PRO*     3.6    33.2    -      -       +      -
    126C  ALA*     4.2    13.8    -      -       +      +
    129C  SER*     5.7     1.5    +      -       -      +
    254C  SER      3.4     7.3    +      -       -      +
    255C  ILE      3.6    13.7    -      -       -      +
    256C  GLY      3.2     0.2    -      -       -      -
    257C  GLU*     1.3    77.4    -      -       -      +
    259C  PHE*     1.3    90.5    +      +       +      +
    261C  ASP*     3.3     5.2    +      -       +      -
    262C  ASN*     2.9    55.4    +      -       +      +
    264C  LYS*     3.7    37.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 259 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102C  GLY      4.4    10.1    -      -       -      -
    103C  PRO*     4.5     3.1    -      -       +      -
    106C  LEU*     3.9    32.1    -      -       +      -
    202C  TYR*     3.5    42.4    -      +       +      -
    204C  VAL*     5.3     1.8    -      -       +      -
    232C  ILE*     3.9    20.4    -      -       +      -
    255C  ILE      3.8    12.3    -      -       -      -
    256C  GLY*     3.2    17.6    +      -       -      +
    257C  GLU      3.2     0.6    -      -       -      -
    258C  TRP*     1.3   103.2    -      +       -      +
    260C  ARG*     1.3    62.1    +      -       -      +
    262C  ASN      3.2     5.9    +      -       -      -
    264C  LYS*     3.0    38.5    +      -       +      +
    266C  ALA*     3.8    25.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 260 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  VAL*     5.4     3.2    -      -       -      +
    134C  LYS      5.0     3.8    +      -       -      -
    136C  PRO*     3.2    34.0    -      -       -      +
    256C  GLY      3.7     1.6    +      -       -      +
    257C  GLU*     3.1    38.4    +      -       -      +
    259C  PHE*     1.3    78.6    -      -       -      +
    261C  ASP*     1.3    86.5    +      -       -      +
    262C  ASN      3.3     1.4    +      -       -      -
    263C  GLY      3.9     1.6    +      -       -      -
    264C  LYS      3.6     8.5    +      -       -      -
    310C  ARG      2.7    28.0    +      -       -      -
    312C  ALA*     4.1     6.9    -      -       -      +
    314C  LEU*     3.4    32.0    -      -       +      +
    318C  GLU      4.7     1.0    -      -       -      +
    321C  GLY*     3.3    20.1    +      -       -      -
    322C  SER*     3.6    22.1    +      -       -      +
    323C  LEU*     3.6    29.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 261 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257C  GLU*     2.8    20.8    +      -       -      +
    258C  TRP*     3.8     6.7    -      -       -      +
    259C  PHE      3.2     0.6    -      -       -      -
    260C  ARG*     1.3   110.4    +      -       -      +
    262C  ASN*     1.3    69.0    +      -       -      +
    263C  GLY      3.9     0.9    -      -       -      -
    314C  LEU*     4.0     9.7    -      -       -      +
    318C  GLU      4.5     8.8    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il