Contacts of the helix formed by residues 211 - 234 (chain B) in PDB entry 1RRM


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 TRP 211 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  PHE*     3.5    37.7    -      +       +      -
    245A  LEU*     4.2    14.6    -      -       +      -
      4B  ASN*     3.5    45.5    -      -       +      +
      5B  ARG      5.1     2.0    +      -       -      -
      6B  MSE      3.8    23.7    -      -       +      -
    209B  GLY      3.7     6.3    -      -       -      +
    210B  ALA*     1.3    73.7    -      -       -      +
    212B  ALA*     1.3    73.2    +      -       +      +
    213B  LEU*     3.2    41.8    +      -       +      -
    214B  THR*     3.2    19.0    +      -       +      +
    215B  ASP*     2.9    27.3    +      -       -      -
    256B  ASN      5.3     0.6    +      -       -      -
    257B  VAL*     3.6    20.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 212 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  ILE*     6.3     0.4    -      -       +      -
    245A  LEU*     3.8    21.8    -      -       +      -
    211B  TRP*     1.3    80.1    -      -       +      +
    213B  LEU*     1.3    63.0    +      -       -      +
    215B  ASP*     3.4     7.5    +      -       -      +
    216B  ALA*     3.1    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 213 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  PHE*     4.3    13.2    -      -       +      -
    217A  LEU*     5.5     2.7    -      -       +      -
    220A  LYS*     6.4     0.9    -      -       +      -
    245A  LEU*     4.4    10.9    -      -       +      +
    249A  VAL*     4.1    25.6    -      -       +      -
    252A  MSE      4.8    17.5    -      -       +      -
      6B  MSE      3.9    34.1    -      -       +      -
      8B  LEU*     6.3     0.2    -      -       +      -
    211B  TRP*     3.4    35.8    -      -       +      -
    212B  ALA*     1.3    78.6    -      -       -      +
    214B  THR*     1.3    61.5    +      -       -      +
    216B  ALA*     3.3     9.0    +      -       +      +
    217B  LEU*     3.2    33.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 214 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6B  MSE      3.9    18.4    -      -       +      -
    210B  ALA*     3.8     4.5    -      -       -      +
    211B  TRP*     3.2    34.5    +      -       -      +
    213B  LEU*     1.3    72.5    -      -       -      +
    215B  ASP*     1.3    63.8    +      -       -      +
    217B  LEU*     3.7     6.9    -      -       -      +
    218B  HIS*     2.8    52.8    +      -       -      -
    253B  GLY*     3.8    15.5    -      -       -      +
    257B  VAL*     3.5    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 215 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205B  TYR*     3.5    23.6    -      -       +      +
    210B  ALA*     3.4    15.5    -      -       -      +
    211B  TRP*     2.9    23.8    +      -       -      +
    212B  ALA*     3.6     7.9    +      -       -      +
    213B  LEU      3.2     0.2    -      -       -      -
    214B  THR*     1.3    79.5    +      -       -      +
    216B  ALA*     1.3    61.9    +      -       -      +
    218B  HIS*     4.6     0.4    -      -       -      -
    219B  ILE*     3.0    28.0    +      -       -      +
    299B  LYS*     3.1    39.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 216 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  LYS*     4.1    36.3    -      -       +      +
    212B  ALA      3.1    10.4    +      -       -      +
    213B  LEU*     3.6    15.0    -      -       +      +
    214B  THR      3.2     0.2    -      -       -      -
    215B  ASP*     1.3    80.0    -      -       -      +
    217B  LEU*     1.3    62.9    +      -       +      +
    219B  ILE*     3.6     9.0    -      -       -      +
    220B  LYS*     3.4    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 217 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  LEU*     5.6     3.1    -      -       +      -
    217A  LEU*     4.5    21.1    -      -       +      -
    252A  MSE      5.8     2.2    -      -       +      -
      6B  MSE      3.9    24.5    -      -       +      -
    213B  LEU*     3.2    24.1    +      -       +      +
    214B  THR*     3.7     5.8    -      -       -      +
    216B  ALA*     1.3    78.0    -      -       +      +
    218B  HIS*     1.3    59.1    +      -       -      +
    220B  LYS*     3.3     3.3    +      -       -      +
    221B  ALA*     2.9    24.4    +      -       -      +
    249B  VAL*     3.4    36.4    -      -       +      +
    252B  MSE      3.9    41.7    -      -       +      -
    253B  GLY*     4.1     5.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 218 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B  ALA*     3.6    33.0    -      -       -      +
    204B  GLY*     3.2    31.1    +      -       -      -
    205B  TYR*     3.5    13.5    +      -       +      -
    214B  THR*     2.8    27.4    +      -       -      +
    215B  ASP*     4.7     0.2    -      -       -      -
    217B  LEU*     1.3    74.5    -      -       -      +
    219B  ILE*     1.3    56.6    +      -       -      +
    221B  ALA*     3.2     4.9    +      -       -      +
    222B  ILE*     2.9    34.3    +      -       -      +
    250B  ALA*     3.4    17.1    +      -       -      -
    253B  GLY*     3.2    12.8    -      -       -      -
    254B  PHE*     2.7    39.0    +      -       -      +
    257B  VAL*     3.9     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  LYS*     6.4     0.7    -      -       -      +
    205B  TYR*     3.8    26.4    -      -       +      +
    215B  ASP      3.0    22.6    +      -       -      +
    216B  ALA*     3.6    11.9    -      -       -      +
    218B  HIS*     1.3    76.5    -      -       -      +
    220B  LYS*     1.3    65.4    +      -       +      +
    222B  ILE*     3.6    11.8    +      -       +      -
    223B  GLU*     3.2    21.8    +      -       -      +
    302B  ASP*     3.8    38.6    -      -       +      +
    303B  ILE      4.2     0.4    -      -       -      +
    306B  VAL*     4.0    19.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  LEU*     6.6     0.2    -      -       +      -
    216A  ALA*     4.2    30.3    -      -       +      +
    216B  ALA      3.4    15.0    +      -       -      +
    217B  LEU*     3.3     6.0    +      -       -      +
    218B  HIS      3.2     0.4    -      -       -      -
    219B  ILE*     1.3    80.3    -      -       +      +
    221B  ALA*     1.3    66.5    +      -       -      +
    223B  GLU*     2.8    32.4    +      -       -      +
    224B  ILE*     2.9    50.4    +      -       +      +
    249B  VAL*     4.8     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B  ALA*     4.0     4.3    -      -       +      -
    217B  LEU      2.9    13.6    +      -       -      +
    218B  HIS      3.5     8.7    -      -       -      +
    220B  LYS*     1.3    77.7    -      -       -      +
    222B  ILE*     1.3    56.9    +      -       -      +
    224B  ILE*     3.3     6.4    +      -       -      +
    225B  ILE*     2.9    37.6    +      -       +      +
    246B  GLY      3.7    22.0    -      -       -      +
    249B  VAL*     4.1     5.8    -      -       +      +
    250B  ALA*     3.7    26.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  LEU*     4.1    19.2    -      -       +      +
    201B  ALA*     3.5    27.4    -      -       +      +
    202B  ILE*     3.9    21.8    -      -       +      -
    205B  TYR*     4.4     5.6    -      -       +      -
    218B  HIS      2.9    22.8    +      -       -      +
    219B  ILE*     3.8    14.6    -      -       +      +
    221B  ALA*     1.3    75.4    -      -       -      +
    223B  GLU*     1.3    58.1    +      -       -      +
    225B  ILE*     4.0     0.2    -      -       -      +
    226B  ALA*     2.8    35.2    +      -       -      +
    303B  ILE*     3.9    25.1    -      -       +      -
    306B  VAL*     3.5    20.6    -      -       +      -
    307B  MSE      4.2    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219B  ILE      3.2    11.3    +      -       -      +
    220B  LYS*     2.8    41.9    +      -       +      +
    222B  ILE*     1.3    81.0    -      -       -      +
    224B  ILE*     1.3    63.1    +      -       +      +
    226B  ALA*     4.3     0.7    -      -       -      +
    227B  GLY*     3.1    20.3    +      -       -      -
    306B  VAL*     3.7    36.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  ALA*     6.2     1.1    -      -       +      -
    220B  LYS*     2.9    45.0    +      -       +      +
    221B  ALA*     3.7     4.7    -      -       -      +
    223B  GLU*     1.3    78.2    -      -       +      +
    225B  ILE*     1.3    63.9    +      -       -      +
    227B  GLY*     3.4     0.7    +      -       -      -
    228B  ALA*     3.1    23.4    +      -       -      +
    242B  GLU*     3.2    38.8    -      -       +      +
    245B  LEU*     4.4    20.9    -      -       +      -
    246B  GLY*     3.7    18.8    -      -       -      +
    249B  VAL*     4.9     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 225 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  GLY      3.8    19.7    -      -       -      +
    197B  ALA*     3.7    35.0    -      -       +      +
    198B  LEU*     3.8    20.2    -      -       +      +
    201B  ALA*     4.5     2.7    -      -       +      -
    221B  ALA*     2.9    28.6    +      -       +      +
    222B  ILE*     4.0     2.2    -      -       -      +
    224B  ILE*     1.3    76.2    -      -       -      +
    226B  ALA*     1.3    59.6    +      -       -      +
    229B  LEU*     2.9    38.2    +      -       +      +
    243B  MSE      3.8    24.0    -      -       +      -
    246B  GLY*     4.0    27.1    -      -       -      +
    247B  GLN*     4.6     0.2    -      -       -      -
    250B  ALA*     4.7     0.7    -      -       +      -
    330B  LEU*     5.8     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 226 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  LEU*     4.9     2.4    -      -       +      +
    222B  ILE*     2.8    23.1    +      -       +      +
    225B  ILE*     1.3    76.4    -      -       -      +
    227B  GLY*     1.3    60.1    +      -       -      +
    228B  ALA      3.7     0.2    +      -       -      -
    229B  LEU*     4.6     3.2    +      -       -      +
    230B  ARG*     3.9    20.6    +      -       -      -
    306B  VAL      4.0     9.9    -      -       -      +
    307B  MSE      3.7    41.7    -      -       +      -
    330B  LEU*     5.1     9.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 227 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223B  GLU      3.1    17.9    +      -       -      -
    224B  ILE      3.8     1.6    -      -       -      -
    226B  ALA*     1.3    80.2    -      -       -      +
    228B  ALA*     1.3    58.3    +      -       -      +
    230B  ARG*     5.5     1.0    +      -       -      +
    231B  GLY      5.4     1.7    +      -       -      -
    242B  GLU*     4.9     3.7    -      -       -      +
    306B  VAL      5.2     1.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 228 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224B  ILE      3.1    14.4    +      -       -      +
    227B  GLY*     1.3    78.1    -      -       -      +
    229B  LEU*     1.3    65.3    +      -       -      +
    230B  ARG      3.4     2.5    -      -       -      -
    231B  GLY*     3.2     4.2    +      -       -      +
    232B  SER*     2.9    20.4    +      -       -      -
    239B  ALA*     3.5    18.5    -      -       -      +
    242B  GLU*     3.4    38.8    -      -       +      +
    243B  MSE      4.1     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 229 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190B  LYS*     3.6    24.2    -      -       +      +
    191B  ALA      4.2     2.7    -      -       -      +
    194B  GLY*     3.8    20.4    -      -       -      +
    195B  VAL*     3.9    28.3    -      -       +      -
    198B  LEU*     5.9     0.2    -      -       +      -
    225B  ILE*     2.9    21.3    +      -       +      +
    226B  ALA      4.6     1.5    +      -       -      +
    227B  GLY      3.9     0.6    -      -       -      -
    228B  ALA*     1.3    76.8    -      -       -      +
    230B  ARG*     1.3    63.4    +      -       -      +
    232B  SER*     3.2     3.3    +      -       -      -
    233B  VAL*     2.9    35.1    +      -       +      +
    243B  MSE      3.7    18.1    -      -       +      -
    330B  LEU*     4.2    25.4    -      -       +      -
    334B  VAL*     4.2    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 230 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226B  ALA*     3.9    19.4    +      -       -      +
    227B  GLY      5.5     1.3    +      -       -      +
    228B  ALA      3.4     0.8    -      -       -      -
    229B  LEU*     1.3    76.5    -      -       -      +
    231B  GLY*     1.3    63.2    +      -       -      +
    233B  VAL*     3.4     3.2    +      -       -      +
    234B  ALA*     3.0    22.9    +      -       -      +
    307B  MSE      5.9     2.2    +      -       -      +
    326B  ALA      4.8     1.8    +      -       -      -
    329B  ALA*     4.2     4.8    -      -       -      +
    330B  LEU*     3.4    47.1    -      -       +      +
    333B  ASP*     2.8    36.8    +      -       +      +
    334B  VAL*     4.4    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 231 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227B  GLY      5.4     1.4    +      -       -      -
    228B  ALA*     3.2     7.5    +      -       -      +
    230B  ARG*     1.3    81.5    -      -       -      +
    232B  SER*     1.3    58.7    +      -       -      +
    234B  ALA*     3.3     9.2    +      -       -      +
    235B  GLY      3.2     4.5    +      -       -      -
    236B  ASP*     2.9    30.1    +      -       -      +
    239B  ALA*     3.7    12.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190B  LYS*     3.1    35.5    +      -       -      +
    228B  ALA      2.9    16.6    +      -       -      -
    229B  LEU*     3.7     6.5    -      -       -      -
    231B  GLY*     1.3    71.8    -      -       -      +
    233B  VAL*     1.3    61.3    +      -       -      +
    234B  ALA      3.0     1.1    -      -       -      -
    235B  GLY*     2.8    16.6    +      -       -      -
    236B  ASP      4.2     4.7    -      -       -      -
    239B  ALA*     3.4    13.4    -      -       -      +
    240B  GLY*     3.6    16.5    -      -       -      -
    243B  MSE      3.8    21.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187B  PRO*     3.7    39.7    -      -       +      +
    190B  LYS*     4.1    10.0    +      -       +      +
    191B  ALA*     3.9    30.3    -      -       -      +
    229B  LEU*     2.9    27.4    +      -       +      +
    230B  ARG      3.7     5.2    -      -       -      +
    232B  SER*     1.3    75.9    -      -       -      +
    234B  ALA*     1.3    61.6    +      -       -      +
    235B  GLY*     3.1     1.1    +      -       -      -
    333B  ASP      5.8     0.2    -      -       -      +
    334B  VAL*     3.9    31.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 234 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230B  ARG      3.0    13.4    +      -       -      +
    231B  GLY*     3.4    15.5    -      -       -      +
    232B  SER      3.0     0.6    -      -       -      -
    233B  VAL*     1.3    77.9    -      -       -      +
    235B  GLY*     1.3    56.2    +      -       -      +
    236B  ASP*     3.6     1.8    -      -       +      +
----------------------------------------------------------
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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