Contacts of the helix formed by residues 215 - 242 (chain A) in PDB entry 5MKE


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 LYS 215 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  TYR*     1.3    76.9    +      -       +      +
    217A  LEU*     3.1    40.0    -      -       +      +
    218A  LYS*     2.8    38.0    +      -       -      +
    219A  SER*     3.0     9.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  LYS*     1.3    88.1    -      -       +      +
    217A  LEU*     1.3    53.6    +      -       +      +
    219A  SER*     2.6    18.5    +      -       -      -
    220A  VAL*     2.6    49.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  LYS*     3.1    34.1    -      -       +      +
    216A  TYR*     1.3    77.6    -      -       +      +
    218A  LYS*     1.3    57.0    +      -       -      +
    220A  VAL*     4.3    10.3    -      -       +      -
    221A  LEU*     3.2    35.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  LYS      2.8    28.0    +      -       -      +
    217A  LEU*     1.3    73.1    -      -       -      +
    219A  SER*     1.3    58.4    +      -       -      +
    222A  ARG*     3.1    47.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  LYS      3.0     6.6    +      -       -      -
    216A  TYR*     2.6    33.7    +      -       -      -
    218A  LYS*     1.3    76.4    -      -       -      +
    220A  VAL*     1.3    64.4    +      -       -      -
    222A  ARG*     3.5     4.0    -      -       -      +
    223A  GLU*     3.3    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  TYR*     2.6    38.8    +      -       +      +
    217A  LEU*     4.3    11.9    -      -       +      -
    219A  SER*     1.3    72.2    -      -       -      +
    221A  LEU*     1.3    62.4    +      -       +      +
    223A  GLU*     2.8    20.6    +      -       +      +
    224A  LEU*     2.3    57.6    +      -       +      +
    579A  PHE*     6.1     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  LEU*     3.2    27.0    +      -       +      +
    219A  SER      3.6     0.2    -      -       -      -
    220A  VAL*     1.3    81.2    -      -       +      +
    222A  ARG*     1.3    52.4    +      -       -      +
    224A  LEU*     3.3    18.6    -      -       +      +
    225A  VAL*     2.3    58.0    +      -       +      +
    228A  LEU*     5.6     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  LYS*     3.1    40.5    +      -       +      +
    219A  SER*     3.5     5.6    -      -       -      +
    221A  LEU*     1.3    78.2    -      -       -      +
    223A  GLU*     1.3    63.3    +      -       -      +
    225A  VAL*     3.1    19.3    -      -       -      +
    226A  THR*     3.0    53.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  SER      3.3     5.8    +      -       -      +
    220A  VAL*     2.8    36.9    +      -       +      +
    222A  ARG*     1.3    75.8    -      -       +      +
    224A  LEU*     1.3    56.6    +      -       +      +
    226A  THR*     2.1    36.9    +      -       +      +
    227A  TYR*     2.6    60.5    +      -       +      -
    487A  TYR*     4.7     7.7    -      -       +      +
    490A  GLU*     5.4     1.7    -      -       -      +
    576A  PHE*     5.5     1.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  VAL*     2.3    51.5    +      -       +      +
    221A  LEU*     3.3    29.2    -      -       +      +
    223A  GLU*     1.3    68.5    -      -       +      +
    225A  VAL*     1.3    50.4    +      -       -      +
    227A  TYR*     2.9    10.4    +      -       +      +
    228A  LEU*     2.4    46.5    +      -       +      +
    576A  PHE*     3.5    52.7    -      -       +      +
    579A  PHE*     4.5    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 225 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  LEU*     2.3    54.7    +      -       +      +
    222A  ARG*     3.1    23.1    -      -       -      +
    224A  LEU*     1.3    67.3    -      -       -      +
    226A  THR*     1.3    53.7    +      -       +      +
    228A  LEU*     2.9    17.4    +      -       +      +
    229A  LEU*     2.6    57.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  ARG*     3.0    36.2    +      -       -      +
    223A  GLU*     2.1    40.3    +      -       -      +
    225A  VAL*     1.3    72.7    -      -       +      +
    227A  TYR*     1.3    54.9    +      -       -      -
    229A  LEU*     4.5     2.5    -      -       -      +
    230A  PHE*     2.8    37.2    +      -       -      +
    483A  PHE*     3.5    20.4    -      -       +      -
    487A  TYR*     2.7    27.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  GLU*     2.6    77.0    +      -       +      -
    224A  LEU*     3.2    11.0    -      -       +      +
    226A  THR*     1.3    74.6    +      -       -      +
    228A  LEU*     1.3    62.4    +      -       +      +
    230A  PHE*     5.0     2.9    -      -       -      -
    231A  LEU*     3.0    28.1    +      -       -      +
    487A  TYR*     4.3    23.4    -      +       -      -
    490A  GLU*     5.5     0.3    +      -       -      -
    491A  GLU*     5.3     4.2    +      -       -      -
    572A  LYS*     3.3    39.9    +      -       +      -
    576A  PHE*     3.2    34.5    -      +       +      -
----------------------------------------------------------
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Residues in contact with LEU 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  LEU*     5.6     4.3    -      -       +      -
    224A  LEU*     2.4    38.8    +      -       +      +
    225A  VAL*     2.9    30.0    +      -       +      +
    227A  TYR*     1.3    67.8    -      -       +      +
    229A  LEU*     1.3    69.7    +      -       +      +
    231A  LEU*     3.0    24.1    -      -       +      +
    232A  ILE*     3.0    14.1    -      -       +      +
    576A  PHE*     6.4     2.0    -      -       +      -
   1006A  CHS      5.3     7.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  VAL*     2.6    42.5    +      -       +      +
    226A  THR*     4.4     2.7    -      -       -      +
    228A  LEU*     1.3    77.0    -      -       +      +
    230A  PHE*     1.3    55.0    +      -       -      +
    231A  LEU      2.9     4.5    -      -       -      -
    232A  ILE*     2.7    38.2    +      -       +      +
    233A  VAL*     3.2    13.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226A  THR      2.8    22.8    +      -       -      +
    227A  TYR*     5.5     2.5    -      -       -      -
    229A  LEU*     1.3    73.5    -      -       -      +
    231A  LEU*     1.3    66.0    +      -       -      +
    233A  VAL*     3.2    31.3    +      -       +      +
    234A  LEU*     3.4    43.3    +      -       +      +
    480A  PHE*     3.5    16.2    -      -       +      -
    483A  PHE*     3.4    35.0    -      +       +      -
    484A  ILE*     3.3    40.6    -      -       +      -
    487A  TYR*     5.0     5.6    -      +       -      -
    514A  ILE*     6.2     4.0    -      -       +      -
    569A  VAL*     5.5     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  TYR      3.0    19.4    +      -       -      +
    228A  LEU*     3.0    18.8    -      -       +      +
    229A  LEU      2.9     0.4    +      -       -      -
    230A  PHE*     1.3    81.8    -      -       -      +
    232A  ILE*     1.3    63.8    +      -       +      +
    234A  LEU*     3.6     2.3    +      -       -      +
    235A  CYS*     3.1    30.9    +      -       -      -
    569A  VAL*     5.3    19.1    -      -       +      +
    570A  TRP*     4.3    20.9    -      -       +      +
    572A  LYS*     6.6     0.2    -      -       +      -
    573A  LEU*     4.2    29.2    -      -       +      +
   1006A  CHS      3.7    41.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  LEU*     3.0    29.2    -      -       +      +
    229A  LEU*     2.7    22.9    +      -       +      +
    231A  LEU*     1.3    73.4    -      -       +      +
    233A  VAL*     1.3    49.0    +      -       -      +
    235A  CYS      3.1     0.2    +      -       -      -
    236A  ILE*     2.2    66.2    +      -       +      +
   1006A  CHS      3.4    63.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  LEU*     3.2     7.8    +      -       +      +
    230A  PHE*     3.3    43.7    -      -       +      +
    231A  LEU      3.1     0.4    -      -       -      -
    232A  ILE*     1.3    74.2    -      -       -      +
    234A  LEU*     1.3    62.0    +      -       +      +
    236A  ILE*     2.8    15.2    +      -       +      +
    237A  LEU*     2.7    29.1    +      -       +      +
    476A  CYS*     4.1    29.5    -      -       +      -
    479A  ILE*     6.3     1.6    -      -       +      -
    480A  PHE*     4.4    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  PHE*     3.4    45.4    +      -       +      +
    231A  LEU      4.4     3.4    -      -       -      +
    233A  VAL*     1.3    78.1    -      -       -      +
    235A  CYS*     1.3    58.0    +      -       -      +
    237A  LEU*     3.2    25.6    +      -       +      +
    238A  THR*     2.8    36.6    +      -       +      +
    480A  PHE*     4.8    14.1    -      -       +      -
    484A  ILE*     5.6     0.9    -      -       +      -
    514A  ILE*     6.5     0.2    -      -       +      -
    565A  THR*     5.8     2.2    -      -       -      +
    566A  VAL*     5.7     9.9    -      -       +      -
    569A  VAL*     4.7    24.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  LEU*     3.1    33.6    +      -       -      -
    232A  ILE      3.1     7.8    +      -       -      +
    234A  LEU*     1.3    75.4    -      -       -      +
    236A  ILE*     1.3    52.4    +      -       -      +
    238A  THR*     2.4    10.6    +      -       -      -
    239A  TYR*     2.3    40.9    +      -       +      +
    566A  VAL*     5.8     2.7    -      -       -      -
    569A  VAL*     6.5     0.9    -      -       -      -
    570A  TRP*     4.5     4.0    -      -       -      -
   1005A  CHS      6.5     0.7    -      -       -      -
   1006A  CHS      3.2    33.0    -      -       -      +
    613B  GLN*     4.3    21.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 236 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  ILE*     2.2    60.6    +      -       +      +
    233A  VAL*     2.8    11.4    +      -       +      +
    235A  CYS*     1.3    65.5    -      -       -      +
    237A  LEU*     1.3    55.1    +      -       +      +
    239A  TYR*     3.9    10.8    -      -       +      -
    240A  GLY*     2.2    41.4    +      -       -      -
    472A  PHE      5.7     3.4    -      -       -      +
    473A  LEU*     6.0     2.5    -      -       -      -
    476A  CYS*     4.5    17.9    -      -       -      -
   1006A  CHS      4.1     6.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  VAL      2.7    17.8    +      -       -      +
    234A  LEU*     3.2    29.6    +      -       +      +
    236A  ILE*     1.3    73.2    -      -       +      +
    238A  THR*     1.3    56.4    +      -       +      +
    240A  GLY*     4.7     0.2    -      -       -      -
    241A  MET*     2.2    60.6    +      -       +      +
    461A  LYS*     5.1     0.9    -      -       -      +
    464A  ARG*     3.7    27.1    -      -       -      +
    473A  LEU*     4.2    24.2    -      -       +      +
    476A  CYS*     4.3    11.7    -      -       -      -
    480A  PHE*     3.5    33.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  LEU*     2.8    22.2    +      -       +      +
    235A  CYS*     2.4    27.7    +      -       -      -
    237A  LEU*     1.3    71.1    -      -       +      +
    239A  TYR*     1.3    58.1    +      -       -      +
    241A  MET*     3.4    20.4    -      -       +      +
    242A  MET*     2.7    37.0    +      -       -      +
    562A  ALA*     6.5     0.9    -      -       +      -
    566A  VAL*     5.0     7.9    -      -       +      -
    616B  TYR*     5.6     4.7    -      -       -      -
    617B  LEU*     4.5    31.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  CYS*     2.3    33.8    +      -       +      +
    236A  ILE*     3.6     8.7    -      -       +      +
    238A  THR*     1.3    69.2    +      -       -      -
    240A  GLY*     1.3    62.8    +      -       -      +
    242A  MET      2.8    21.2    -      -       -      +
    243A  SER*     3.6    11.1    +      -       -      -
    244A  SER      6.2     0.7    -      -       -      -
   1005A  CHS      3.9    31.9    -      -       +      +
   1006A  CHS      3.2    42.0    -      -       -      +
    616B  TYR*     6.3     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  ILE*     2.2    29.0    +      -       -      -
    237A  LEU*     4.7     0.4    -      -       -      -
    239A  TYR*     1.3    71.7    -      -       -      +
    241A  MET*     1.3    64.7    +      -       -      +
    242A  MET*     3.1     3.0    +      -       -      -
    243A  SER*     4.4     2.6    +      -       -      -
    473A  LEU*     5.7     9.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  LEU*     2.2    64.2    +      -       +      +
    238A  THR*     3.4    18.8    -      -       +      +
    240A  GLY*     1.3    67.8    -      -       -      +
    242A  MET*     1.3    93.8    +      -       +      +
    243A  SER      4.3     0.3    +      -       -      -
    246A  VAL*     5.1     0.5    -      -       -      +
    433A  ILE*     6.0     0.2    -      -       -      +
    435A  LEU*     4.1     9.2    -      -       -      +
    461A  LYS*     3.3    57.8    -      -       +      +
    473A  LEU*     5.6     8.8    -      -       +      +
    558A  PHE*     5.3    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  THR*     2.7    26.6    +      -       -      +
    239A  TYR*     2.8    15.8    -      -       -      +
    241A  MET*     1.3   125.1    -      -       +      +
    243A  SER*     1.3    65.2    +      -       -      +
    246A  VAL*     4.1    16.6    -      -       +      -
    435A  LEU*     3.7    22.2    -      -       +      -
    459A  PRO*     5.6     8.5    -      -       +      +
    460A  LEU*     5.2     3.4    -      -       -      -
    461A  LYS*     4.5    18.2    -      -       +      +
    555A  GLN*     5.6     7.0    -      -       -      +
    559A  ASN*     5.5    10.1    -      -       -      +
    616B  TYR*     3.9    15.4    +      -       +      +
----------------------------------------------------------
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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