Contacts of the helix formed by residues 162 - 184 (chain A) in PDB entry 4DHZ


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 ASP 162 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  THR      3.2    13.5    +      -       -      +
    159A  ILE*     3.3    10.2    +      -       -      +
    161A  ASN*     1.3    73.8    -      -       -      +
    163A  ASP*     1.3    59.9    +      -       -      +
    164A  GLY*     3.1     7.7    +      -       -      -
    165A  SER*     3.1    31.0    +      -       -      -
    166A  ALA*     2.8    32.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ALA*     5.6     0.9    -      -       -      +
     43A  LEU*     4.0    18.0    -      -       +      +
     83A  ARG*     3.5    24.0    +      -       -      -
    161A  ASN      3.2     6.2    +      -       -      +
    162A  ASP*     1.3    74.4    +      -       -      +
    164A  GLY*     1.3    64.2    +      -       -      +
    167A  ASN*     3.0    38.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162A  ASP*     3.1    10.1    +      -       -      -
    163A  ASP*     1.3    80.6    -      -       -      +
    165A  SER*     1.3    61.9    +      -       -      +
    167A  ASN*     4.3     1.6    -      -       -      +
    168A  TYR*     3.5    22.2    +      -       -      +
     64F  MET*     4.9     1.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  PHE*     3.9    18.5    -      -       -      -
    159A  ILE*     3.6    34.1    -      -       -      +
    162A  ASP*     3.1    16.5    +      -       -      -
    164A  GLY*     1.3    72.9    -      -       -      +
    166A  ALA*     1.3    65.4    +      -       -      +
    168A  TYR*     3.0    16.7    +      -       -      +
    169A  ILE*     3.1    18.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  LEU*     3.9     8.7    -      -       +      -
     91A  ARG*     3.5    18.3    +      -       -      +
     94A  LEU*     5.2     2.1    -      -       -      +
    159A  ILE      3.7     3.3    +      -       -      -
    160A  LEU*     3.5    35.0    -      -       +      +
    162A  ASP      2.8    21.7    +      -       -      +
    163A  ASP      4.2     0.2    -      -       -      +
    165A  SER*     1.3    73.7    -      -       -      +
    167A  ASN*     1.3    58.6    +      -       -      +
    169A  ILE*     3.4     9.6    +      -       -      +
    170A  LEU*     2.9    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  LEU*     4.8     2.7    -      -       -      +
     87A  ASN*     4.4     0.2    +      -       -      -
     91A  ARG*     2.8    33.1    +      -       -      -
    163A  ASP*     3.0    31.6    +      -       -      +
    164A  GLY      4.4     0.4    -      -       -      +
    166A  ALA*     1.3    73.2    -      -       -      +
    168A  TYR*     1.3    63.5    +      -       -      +
    170A  LEU*     3.7     6.9    -      -       -      +
    171A  MET*     3.1    18.0    +      -       -      +
    209A  MET*     3.9    14.6    -      -       +      +
    210A  TRP*     3.9    19.9    -      -       -      -
     61F  GLU*     6.4     0.4    -      -       -      +
     64F  MET*     3.4    37.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  THR      5.3     0.9    +      -       -      -
    134A  ASP*     3.3    23.2    +      -       -      +
    135A  PHE*     3.1    45.4    -      +       -      +
    138A  PHE*     3.5    44.4    -      +       +      -
    164A  GLY      3.5    12.9    +      -       -      +
    165A  SER*     3.0    10.8    +      -       -      +
    167A  ASN*     1.3    75.7    -      -       -      +
    169A  ILE*     1.3    64.3    +      -       -      +
    171A  MET*     3.2    17.8    +      -       -      +
    172A  PHE*     3.7     4.0    +      -       -      +
      5F  PRO*     6.2     2.2    -      -       +      -
      6F  ARG*     4.7     8.7    -      -       +      -
      7F  ARG*     3.4    38.7    +      -       +      +
     63F  PRO*     4.3    11.7    -      -       +      -
     64F  MET*     3.7    15.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  LEU*     4.4    16.6    -      -       +      -
    135A  PHE      6.0     0.2    -      -       -      -
    138A  PHE*     3.9    19.3    -      -       +      -
    139A  PHE*     3.6    34.5    -      -       +      -
    142A  PHE*     4.0    40.2    -      -       +      -
    159A  ILE*     4.3    13.0    -      -       +      -
    160A  LEU*     4.5    10.3    -      -       +      -
    165A  SER      3.1    14.5    +      -       -      +
    166A  ALA*     3.6     7.9    -      -       -      +
    168A  TYR*     1.3    75.0    -      -       -      +
    170A  LEU*     1.3    62.3    +      -       -      +
    172A  PHE*     3.1    21.1    +      -       -      +
    173A  PHE*     3.4    11.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  ASN*     3.8     7.9    -      -       +      -
     90A  TYR*     3.8    19.1    -      -       +      -
     91A  ARG*     3.6    63.0    -      -       +      +
     94A  LEU*     4.1    14.8    -      -       +      -
    166A  ALA      2.9    15.6    +      -       -      +
    167A  ASN*     3.8     8.7    -      -       -      +
    168A  TYR      3.2     0.4    -      -       -      -
    169A  ILE*     1.3    77.2    -      -       -      +
    171A  MET*     1.3    63.3    +      -       -      +
    173A  PHE*     2.9    15.5    +      -       +      +
    174A  ARG*     3.1    38.7    +      -       +      +
    209A  MET*     4.1    12.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  PHE*     3.9    27.4    -      -       +      -
    167A  ASN      3.1    14.7    +      -       -      +
    168A  TYR      3.4    11.7    -      -       -      +
    169A  ILE      3.2     0.6    -      -       -      -
    170A  LEU*     1.3    78.1    -      -       -      +
    172A  PHE*     1.3    55.5    +      -       -      +
    174A  ARG*     3.2    13.2    +      -       +      +
    175A  LEU*     2.8    64.6    +      -       +      +
    207A  GLU      3.6    24.5    -      -       -      +
    209A  MET*     4.0    13.5    -      -       -      +
     64F  MET*     4.3     2.7    -      -       -      -
     96F  SER*     4.8     1.6    -      -       -      +
     97F  PRO*     3.7    39.0    -      -       +      -
     98F  ALA*     4.4     5.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111A  PHE*     4.9     4.5    -      +       -      -
    115A  SER*     4.1    19.3    -      -       -      -
    118A  TRP*     4.2    16.6    -      +       +      -
    122A  LEU*     5.2     0.4    -      -       +      -
    135A  PHE*     4.8     7.5    -      -       +      +
    136A  CYS*     3.6    42.4    -      -       +      -
    139A  PHE*     3.4    48.2    -      +       +      -
    168A  TYR      3.7     4.2    +      -       -      +
    169A  ILE      3.1    12.9    +      -       -      +
    170A  LEU      3.1     0.4    -      -       -      -
    171A  MET*     1.3    78.4    -      -       -      +
    173A  PHE*     1.3    71.5    +      +       -      +
    175A  LEU*     3.1    12.5    +      -       +      +
    176A  ILE*     2.9    55.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  TYR*     4.4    13.5    -      -       +      +
     93A  ILE*     4.9     3.4    -      -       +      -
     94A  LEU*     4.0    25.8    -      -       +      -
     97A  LEU*     3.6    29.8    -      -       +      -
     98A  ILE*     5.3     3.8    -      -       +      -
    111A  PHE*     4.4    10.8    -      +       -      -
    139A  PHE*     3.6    40.6    -      +       -      -
    169A  ILE*     3.4    22.7    -      -       +      -
    170A  LEU*     2.9    10.1    +      -       -      +
    172A  PHE*     1.3    80.6    -      +       -      +
    174A  ARG*     1.3    58.7    +      -       -      +
    176A  ILE*     4.0    11.9    -      -       +      -
    177A  THR*     2.6    35.3    +      -       -      -
    221A  LEU*     3.5    25.8    -      -       +      +
    225A  ALA*     5.5     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 174 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  GLY      3.3     8.1    +      -       -      -
     87A  ASN*     2.8    26.4    +      -       -      -
     90A  TYR*     3.4    33.4    +      -       +      -
    170A  LEU*     3.1    27.5    +      -       +      +
    171A  MET*     3.5    15.0    -      -       -      +
    173A  PHE*     1.3    78.5    -      -       -      +
    175A  LEU*     1.3    62.0    +      -       -      +
    177A  THR*     3.5     3.3    +      -       -      -
    178A  SER*     3.1    18.5    +      -       -      -
    205A  GLU      4.1     3.2    +      -       -      -
    206A  ILE*     3.1    39.2    +      -       -      +
    207A  GLU*     4.1     6.2    -      -       -      +
    208A  PRO      3.1    25.4    +      -       -      -
    209A  MET*     3.8    18.3    -      -       -      -
    211A  LYS      2.9    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 175 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  LEU*     4.5    16.6    -      -       +      -
    127A  PHE*     3.7    29.7    -      -       +      -
    132A  CYS*     4.0    25.4    -      -       +      +
    135A  PHE*     3.7    35.4    -      -       +      -
    171A  MET*     2.8    32.9    +      -       +      +
    172A  PHE*     3.1    11.4    +      -       +      +
    174A  ARG*     1.3    74.7    -      -       -      +
    176A  ILE*     1.3    61.0    +      -       -      +
    178A  SER*     3.0     5.9    +      -       -      -
    179A  ALA*     2.7    28.6    +      -       -      +
    207A  GLU*     4.7    11.2    -      -       +      -
     98F  ALA*     4.9     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 176 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111A  PHE*     5.5     4.0    -      -       +      -
    118A  TRP*     3.7    44.8    -      -       +      +
    122A  LEU*     5.4     3.1    -      -       +      -
    172A  PHE*     2.9    45.0    +      -       +      +
    173A  PHE*     3.6    22.9    -      -       +      +
    175A  LEU*     1.3    69.5    -      -       +      +
    177A  THR*     1.3    60.7    +      -       -      +
    179A  ALA*     3.5     6.7    -      -       +      +
    180A  PHE*     2.7    37.7    +      -       -      +
    221A  LEU*     4.1    14.4    -      -       +      -
    224A  ALA*     4.0    27.8    -      -       +      +
    225A  ALA*     4.3     6.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 177 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  TYR*     3.4     9.6    -      -       -      +
    173A  PHE      2.6    24.2    +      -       -      -
    174A  ARG      3.6     5.6    -      -       -      -
    176A  ILE*     1.3    79.1    -      -       -      +
    178A  SER*     1.3    63.4    +      -       -      +
    180A  PHE*     3.7     1.1    +      -       -      -
    181A  LEU*     3.4    20.3    +      -       -      +
    206A  ILE*     3.9    15.9    -      -       +      -
    217A  ALA*     3.4    37.9    -      -       +      +
    220A  SER*     3.8    16.1    -      -       -      -
    221A  LEU*     3.3    22.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  PHE*     4.1     5.6    -      -       -      -
    174A  ARG      3.1    12.7    +      -       -      -
    175A  LEU      3.0     9.4    +      -       -      -
    177A  THR*     1.3    74.6    -      -       -      +
    179A  ALA*     1.3    67.5    +      -       -      +
    181A  LEU*     3.0    14.2    +      -       -      +
    182A  LYS*     3.1    18.4    +      -       -      +
    202A  CYS*     3.2    25.7    -      -       -      +
    206A  ILE*     3.9     7.6    -      -       -      +
    207A  GLU*     2.9    36.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  TRP*     3.8    19.5    -      -       +      -
    122A  LEU*     3.6    23.1    -      -       +      -
    125A  LEU*     3.8    15.9    -      -       +      +
    127A  PHE*     3.7     9.9    -      -       -      -
    175A  LEU      2.7    19.0    +      -       -      +
    176A  ILE*     3.5     6.3    -      -       -      +
    178A  SER*     1.3    71.7    -      -       -      +
    180A  PHE*     1.3    57.4    +      -       -      +
    181A  LEU      3.2     0.3    +      -       -      -
    182A  LYS*     3.2     4.3    +      -       -      +
    183A  GLN*     2.9    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  TRP*     4.3     9.8    -      +       +      -
    176A  ILE      2.7    19.7    +      -       -      +
    177A  THR      4.0     3.8    -      -       -      +
    179A  ALA*     1.3    73.3    -      -       -      +
    181A  LEU*     1.3    62.3    +      -       -      +
    183A  GLN*     3.5    14.1    -      -       -      +
    184A  ASN*     3.2    33.8    +      -       -      +
    188A  TYR*     3.9    29.2    -      +       -      -
    219A  ASN*     5.1     0.2    -      -       -      -
    220A  SER*     3.7    29.2    -      -       -      +
    223A  LYS*     3.6    27.4    -      -       +      -
    224A  ALA*     3.6    36.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  THR      3.4     6.0    +      -       -      +
    178A  SER      3.0     9.9    +      -       -      +
    180A  PHE*     1.3    77.8    -      -       -      +
    182A  LYS*     1.3    65.7    +      -       -      +
    184A  ASN      3.0    13.7    +      -       -      +
    185A  SER*     3.1    14.9    +      -       -      -
    188A  TYR*     3.8    36.5    -      -       +      +
    192A  ILE*     5.8     1.1    -      -       +      -
    198A  VAL*     3.9    11.1    -      -       +      +
    201A  TYR*     4.5     4.0    -      -       +      -
    202A  CYS*     3.8    15.7    -      -       -      -
    206A  ILE*     3.4    33.2    -      -       +      -
    216A  LEU*     4.2    24.5    -      -       +      -
    220A  SER*     3.4    24.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  LEU*     4.4    21.8    +      -       +      +
    126A  GLY      6.2     0.2    -      -       -      -
    127A  PHE*     3.2    37.5    -      -       +      -
    178A  SER*     3.1    21.6    +      -       -      +
    179A  ALA      3.7     4.5    -      -       -      +
    181A  LEU*     1.3    74.1    -      -       -      +
    183A  GLN*     1.3    62.6    -      -       -      +
    184A  ASN      3.0     1.2    +      -       -      -
    185A  SER*     3.2    18.9    +      -       -      -
    198A  VAL*     4.1    13.2    -      -       +      -
    199A  ALA*     4.7    15.5    -      -       +      +
    202A  CYS*     4.0    16.4    -      -       -      -
    203A  GLU*     5.2     5.9    +      -       -      +
    207A  GLU*     2.9    23.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  TRP*     3.8    29.1    -      -       -      -
    121A  THR*     3.5    25.5    -      -       -      +
    125A  LEU*     4.3    14.9    -      -       +      +
    179A  ALA      2.9    14.2    +      -       -      +
    180A  PHE*     3.5    16.2    -      -       -      +
    181A  LEU      3.2     0.2    -      -       -      -
    182A  LYS*     1.3    75.7    -      -       -      +
    184A  ASN*     1.3    72.4    +      -       -      +
    185A  SER      3.7     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  PHE*     3.2    34.2    +      -       -      +
    181A  LEU      3.0     5.5    +      -       -      +
    182A  LYS      3.0     0.8    -      -       -      -
    183A  GLN*     1.3    98.6    -      -       -      +
    185A  SER*     1.3    62.8    +      -       -      +
    186A  GLU*     3.5     3.8    -      -       -      -
    187A  GLU*     3.2    27.8    +      -       -      +
    188A  TYR*     3.2    33.6    +      -       +      -
----------------------------------------------------------
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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