Contacts of the helix formed by residues 238 - 260 (chain B) in PDB entry 5H1C


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 LEU 238 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273A  VAL*     4.8     2.5    -      -       +      -
    232B  TYR*     4.6     1.0    -      -       -      +
    234B  GLY*     4.2     7.0    -      -       -      +
    235B  ARG*     3.5    36.8    -      -       +      +
    237B  GLU*     1.3    74.5    -      -       -      +
    239B  SER*     1.3    55.6    +      -       -      +
    240B  ALA      3.0     0.4    -      -       -      -
    241B  ARG*     2.7    53.2    +      -       -      +
    242B  GLN*     2.7    25.6    +      -       +      +
      3D    T      3.2    47.3    -      -       +      +
      4D    T      3.7    34.5    -      -       +      +
      5D    T      4.7     6.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  GLY      5.3     0.2    -      -       -      -
    237B  GLU      2.2    27.4    +      -       -      -
    238B  LEU*     1.3    72.8    -      -       -      +
    240B  ALA*     1.3    57.2    +      -       -      +
    242B  GLN*     4.4     1.7    -      -       -      +
    243B  MET*     3.2    24.0    +      -       -      +
      2D    T      4.2    13.9    -      -       -      -
      3D    T      3.3    35.5    +      -       -      +
      7E    A      5.1     0.9    -      -       -      -
      8E    A      4.4    14.7    +      -       -      -
      9E    A      5.3     5.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 240 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232B  TYR*     4.9    14.3    +      -       +      -
    237B  GLU*     3.4    15.8    +      -       -      +
    238B  LEU      3.0     0.4    -      -       -      -
    239B  SER*     1.3    83.4    +      -       -      +
    241B  ARG*     1.3    57.9    +      -       -      +
    243B  MET*     3.1    15.6    +      -       -      +
    244B  HIS*     2.9    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 241 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228B  TYR*     3.3    40.0    -      -       +      +
    229B  ARG*     5.3     1.7    -      -       -      +
    232B  TYR*     3.5    38.1    +      -       +      -
    238B  LEU*     2.7    30.7    +      -       -      +
    240B  ALA*     1.3    79.4    -      -       -      +
    242B  GLN*     1.3    86.4    +      -       -      +
    244B  HIS*     3.1     4.3    +      -       -      +
    245B  LEU*     2.9    36.7    +      -       +      +
    287B  ILE*     4.1    11.7    -      -       -      +
    288B  GLY*     3.8    18.2    -      -       -      +
      4D    T      3.5     2.4    +      -       -      -
      5D    T      3.2    36.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 242 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  LEU*     2.7    22.4    +      -       +      +
    239B  SER      4.5     1.8    -      -       -      +
    241B  ARG*     1.3   112.1    -      -       -      +
    243B  MET*     1.3    57.2    +      -       -      +
    245B  LEU*     3.8     8.3    -      -       -      +
    246B  ALA*     3.0    32.7    +      -       -      +
    288B  GLY*     2.9    29.3    +      -       -      +
    289B  GLY      4.5     0.4    -      -       -      +
    291B  ILE*     3.3    34.6    -      -       +      +
      3D    T      3.4    39.1    +      -       +      +
      4D    T      4.1     5.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 243 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  SER*     3.4    48.4    -      -       -      +
    234A  GLY      5.3     3.6    -      -       -      +
    239B  SER      3.2    17.8    +      -       -      +
    240B  ALA*     3.1    19.5    -      -       -      +
    241B  ARG      3.1     0.4    -      -       -      -
    242B  GLN*     1.3    79.7    -      -       -      +
    244B  HIS*     1.3    59.2    +      -       -      +
    246B  ALA*     4.0     5.2    +      -       -      +
    247B  ARG*     3.8    32.6    +      -       -      +
      3D    T      5.3     5.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 244 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197B  THR*     3.8    16.8    -      -       -      -
    198B  ASP*     3.6    22.2    +      -       -      -
    201B  THR*     3.8    23.8    -      -       +      +
    228B  TYR*     2.7    37.8    +      +       +      -
    232B  TYR*     4.5    14.6    -      -       -      +
    240B  ALA      2.9    11.8    +      -       -      +
    241B  ARG*     3.1     7.6    +      -       -      +
    243B  MET*     1.3    76.5    -      -       -      +
    245B  LEU*     1.3    65.8    +      -       -      +
    246B  ALA      3.2     1.6    -      -       -      -
    247B  ARG*     3.1    13.4    +      -       +      +
    248B  PHE*     3.0    23.2    +      +       +      +
----------------------------------------------------------
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Residues in contact with LEU 245 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224B  ALA*     4.8     3.6    -      -       +      +
    225B  THR*     5.3     9.2    -      -       +      -
    228B  TYR*     3.4    41.1    -      -       +      +
    241B  ARG*     2.9    44.2    +      -       +      +
    242B  GLN*     3.9    13.0    -      -       -      +
    244B  HIS*     1.3    77.0    -      -       -      +
    246B  ALA*     1.3    63.6    +      -       -      +
    248B  PHE*     3.1    13.7    +      -       +      +
    249B  LEU*     2.9    39.0    +      -       +      +
    287B  ILE*     5.8     0.4    -      -       +      -
    288B  GLY*     4.4    14.4    -      -       -      -
    291B  ILE*     5.1     4.5    -      -       +      -
    292B  ILE*     4.6    12.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  ARG*     5.1     7.4    -      -       +      +
    230A  THR*     3.4    37.0    -      -       +      +
    242B  GLN      3.0    16.6    +      -       -      +
    243B  MET*     4.2     6.5    -      -       -      +
    244B  HIS      3.2     0.2    -      -       -      -
    245B  LEU*     1.3    76.9    -      -       -      +
    247B  ARG*     1.3    59.2    +      -       +      +
    249B  LEU*     3.9     2.5    -      -       -      +
    250B  ARG      3.0    22.5    +      -       -      -
    291B  ILE*     4.0    24.6    -      -       +      +
      3D    T      5.7     2.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  THR      4.0    18.6    +      -       -      +
    231A  ASP      5.3     3.4    +      -       -      -
    233A  SER*     2.3    42.9    +      -       -      +
    237A  GLU*     5.4     2.2    +      -       -      -
    243B  MET*     3.8    22.4    +      -       -      +
    244B  HIS*     3.1    14.4    +      -       +      +
    246B  ALA*     1.3    75.7    -      -       +      +
    248B  PHE*     1.3    66.7    +      -       -      +
    250B  ARG*     3.2     6.8    +      -       -      +
    251B  MET*     2.9    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160B  ILE*     6.4     0.2    -      -       +      -
    200B  GLN*     3.9    36.8    -      -       +      -
    201B  THR*     5.2     7.9    -      -       +      -
    204B  LEU*     3.6    31.2    -      -       +      -
    221B  VAL*     5.0    10.5    -      -       +      -
    224B  ALA*     3.8    26.2    -      -       +      -
    228B  TYR*     4.3    11.4    -      +       -      +
    244B  HIS*     3.0    15.3    +      -       +      +
    245B  LEU*     3.1    17.9    +      -       +      +
    247B  ARG*     1.3    76.2    -      -       -      +
    249B  LEU*     1.3    74.0    +      -       +      +
    251B  MET*     3.0    10.3    +      -       -      +
    252B  LEU*     3.0    54.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  ILE*     4.3     5.5    -      -       +      +
    224B  ALA*     6.1     1.1    -      -       +      -
    245B  LEU*     2.9    25.6    +      -       +      +
    246B  ALA*     4.0     3.4    -      -       -      +
    248B  PHE*     1.3    89.9    -      -       +      +
    250B  ARG*     1.3    66.4    +      -       -      +
    252B  LEU*     3.1    17.5    +      -       +      +
    253B  LEU*     2.9    26.5    +      -       -      +
    265B  ILE*     4.3    19.1    -      -       +      -
    291B  ILE*     3.8    31.4    -      -       +      +
    292B  ILE*     3.8    27.1    -      -       +      +
    295B  ALA*     4.1    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  PHE*     3.1    25.9    +      -       -      +
    196A  ASN*     4.2     9.9    +      -       -      -
    227A  LEU*     3.5    23.2    -      -       -      +
    230A  THR*     3.0    39.4    +      -       +      +
    231A  ASP*     3.0    28.8    +      -       -      -
     54B  TYR      4.6     5.7    +      -       -      -
     56B  PRO*     4.7     6.9    -      -       -      +
    246B  ALA      3.0    19.3    +      -       -      +
    247B  ARG*     3.2     6.9    +      -       -      +
    249B  LEU*     1.3    76.9    -      -       -      +
    251B  MET*     1.3    62.3    +      -       +      +
    253B  LEU*     3.1    17.9    +      -       +      +
    254B  ARG*     2.9    35.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59B  GLU*     5.8     0.4    -      -       -      +
    204B  LEU*     3.7    27.1    -      -       +      -
    205B  TYR*     4.5    29.6    -      -       +      +
    208B  SER*     6.4     2.2    -      -       -      -
    247B  ARG*     2.9    22.3    +      -       +      +
    248B  PHE*     3.0     8.3    +      -       -      +
    250B  ARG*     1.3    78.8    -      -       -      +
    252B  LEU*     1.3    59.8    +      -       -      +
    254B  ARG*     2.8    72.2    +      -       +      +
    255B  LEU*     3.0    22.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  ILE*     4.0    11.9    -      -       +      -
    204B  LEU*     3.8    28.3    -      -       +      -
    219B  LEU*     4.7     6.7    -      -       +      -
    221B  VAL*     5.6    10.1    -      -       +      -
    224B  ALA*     5.9     0.2    -      -       +      -
    248B  PHE*     3.0    45.4    +      -       +      +
    249B  LEU*     3.1    22.0    +      -       +      +
    251B  MET*     1.3    76.5    -      -       -      +
    253B  LEU*     1.3    58.0    +      -       -      +
    255B  LEU*     3.3    11.5    +      -       +      +
    256B  ALA*     2.9    30.8    +      -       -      +
    263B  VAL*     4.3    25.7    -      -       +      +
    265B  ILE*     4.4    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 253 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  GLU*     5.4    16.8    -      -       +      +
    193A  ARG*     5.5     2.0    -      -       -      +
    121B  SER*     6.1     1.3    -      -       -      -
    122B  ILE*     3.9    24.2    -      -       +      -
    249B  LEU*     2.9    17.8    +      -       +      +
    250B  ARG*     3.3    17.7    -      -       +      +
    252B  LEU*     1.3    76.0    -      -       -      +
    254B  ARG*     1.3    60.0    +      -       -      +
    256B  ALA*     4.4     4.3    -      -       +      +
    257B  ASP*     2.9    57.5    +      -       -      +
    295B  ALA*     5.1    17.0    -      -       +      +
    297B  THR*     5.8     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 254 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45B  GLY      6.1     0.2    -      -       -      -
     46B  PHE*     3.2    29.5    -      -       -      -
     51B  ALA*     5.0    13.9    +      -       +      -
     54B  TYR*     5.2    14.7    +      -       +      +
     55B  ALA*     5.1     1.3    -      -       -      +
     56B  PRO*     4.4    12.5    -      -       -      +
     59B  GLU*     2.9    32.1    +      -       -      -
    205B  TYR*     5.0     4.9    -      -       -      -
    250B  ARG*     2.9    21.8    +      -       +      +
    251B  MET*     2.8    52.3    +      -       -      +
    253B  LEU*     1.3    76.4    -      -       -      +
    255B  LEU*     1.3    62.5    +      -       +      +
    257B  ASP*     4.6     2.1    -      -       -      +
    258B  GLU*     3.0    47.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 255 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204B  LEU*     4.4    22.4    -      -       +      +
    207B  ALA*     4.7    10.1    -      -       +      -
    208B  SER*     3.9    31.4    -      -       -      -
    211B  MET*     4.7    13.0    -      -       +      -
    219B  LEU*     3.5    31.4    -      -       +      -
    251B  MET*     3.0    21.9    +      -       +      +
    252B  LEU*     3.8     9.0    -      -       +      +
    254B  ARG*     1.3    84.1    -      -       +      +
    256B  ALA*     1.3    60.5    +      -       -      +
    258B  GLU*     3.1    12.6    +      -       -      +
    259B  PHE*     3.0    35.1    +      -       +      +
    260B  GLY      4.4     1.0    +      -       -      +
    263B  VAL*     6.1     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 256 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120B  GLY*     3.3    37.1    -      -       -      +
    121B  SER*     4.2     2.5    -      -       -      +
    122B  ILE*     5.2     2.0    -      -       +      -
    252B  LEU      2.9    18.2    +      -       -      +
    253B  LEU*     4.2     6.1    -      -       +      +
    255B  LEU*     1.3    79.0    -      -       -      +
    257B  ASP*     1.3    62.7    +      -       -      +
    258B  GLU      3.1     1.3    +      -       -      -
    260B  GLY      3.6    18.8    +      -       -      +
    263B  VAL*     3.4    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 257 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  GLU      5.5     0.3    -      -       -      +
    193A  ARG*     2.6    32.7    +      -       -      -
    195A  PHE*     3.5    23.2    -      -       +      -
     50B  GLU*     5.2     0.3    -      -       -      +
     54B  TYR*     4.6    12.4    +      -       +      -
    120B  GLY      4.1     9.9    -      -       -      +
    253B  LEU*     2.9    44.2    +      -       -      +
    254B  ARG*     4.6     3.1    -      -       -      +
    255B  LEU      3.2     0.2    -      -       -      -
    256B  ALA*     1.3    78.2    -      -       -      +
    258B  GLU*     1.3    62.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 258 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  PRO*     4.7     5.7    -      -       -      +
     48B  THR*     3.9     4.8    +      -       -      -
     50B  GLU*     4.2    16.1    -      -       -      +
     51B  ALA*     3.1    38.3    -      -       -      +
     54B  TYR*     4.0    20.1    -      -       +      -
    254B  ARG*     3.0    31.4    -      -       -      +
    255B  LEU*     3.5     8.0    -      -       -      +
    257B  ASP*     1.3    84.3    -      -       -      +
    259B  PHE*     1.3    99.9    +      -       +      +
    260B  GLY      3.5     2.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 259 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  PRO*     3.6    30.7    -      -       +      -
     48B  THR*     3.4    31.2    -      -       +      -
     50B  GLU*     4.7     2.2    -      -       -      -
    208B  SER*     5.1     3.6    -      -       -      -
    211B  MET*     3.4    59.9    -      -       +      -
    215B  ARG*     5.7     8.2    +      -       -      +
    255B  LEU*     3.0    16.9    +      -       +      +
    258B  GLU*     1.3   112.4    -      -       +      +
    260B  GLY*     1.3    68.3    +      -       -      +
    261B  VAL*     2.9    13.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 260 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119B  THR*     4.2     4.5    -      -       -      -
    120B  GLY*     3.5    27.8    +      -       -      -
    255B  LEU      4.7     0.9    -      -       -      +
    256B  ALA*     3.6    16.1    +      -       -      -
    258B  GLU      3.5     4.0    +      -       -      -
    259B  PHE*     1.3    77.0    -      -       -      +
    261B  VAL*     1.3    68.6    +      -       -      +
    262B  ALA*     3.1     6.8    +      -       -      -
    263B  VAL*     5.6     0.2    -      -       -      +
----------------------------------------------------------
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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