Contacts of the helix formed by residues 199 - 229 (chain A) in PDB entry 1HE1


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 SER 199 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  ASP      3.6     2.8    +      -       -      -
    198A  ALA*     1.3    78.2    -      -       -      +
    200A  PRO*     1.3    76.7    -      -       -      +
    201A  GLU*     3.5    17.5    +      -       -      +
    202A  LEU*     3.2    23.3    +      -       -      +
    203A  ARG*     3.1    20.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  PRO*     4.9     2.6    -      -       +      +
    199A  SER*     1.3    84.8    -      -       -      +
    201A  GLU*     1.3    77.4    +      -       +      +
    203A  ARG*     3.4    29.3    +      -       +      +
    204A  ARG*     3.1    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  SER*     3.1    14.1    +      -       -      +
    200A  PRO*     1.3    97.4    -      -       +      +
    202A  LEU*     1.3    64.5    +      -       -      +
    204A  ARG*     3.4     8.6    +      -       -      +
    205A  GLU*     3.1    22.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  GLY*     4.3    16.6    -      -       -      +
    194A  LEU*     4.0    28.5    -      -       +      -
    198A  ALA*     3.8    21.5    -      -       +      -
    199A  SER*     3.2    19.9    +      -       -      +
    201A  GLU*     1.3    76.9    -      -       -      +
    203A  ARG*     1.3    60.5    +      -       -      +
    205A  GLU*     3.2    18.9    +      -       -      +
    206A  ILE*     2.8    50.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  PRO*     3.6    32.9    +      -       +      +
    129A  GLU*     5.0     5.9    -      -       -      +
    131A  LEU*     3.9    15.9    -      -       +      +
    132A  ALA*     3.6    28.6    -      -       -      +
    195A  VAL*     4.8     4.5    -      -       +      +
    198A  ALA*     3.7    27.0    +      -       +      -
    199A  SER      3.1    15.6    +      -       -      +
    200A  PRO*     3.4    41.1    -      -       -      +
    202A  LEU*     1.3    76.8    -      -       -      +
    204A  ARG*     1.3    56.8    +      -       -      +
    206A  ILE*     3.8     3.5    -      -       +      +
    207A  THR*     2.8    35.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126A  LEU      4.8     0.2    +      -       -      -
    128A  PRO*     3.6    32.6    -      -       +      +
    200A  PRO      3.1    14.1    +      -       -      +
    201A  GLU*     3.5    12.1    -      -       -      +
    202A  LEU      3.2     0.2    -      -       -      -
    203A  ARG*     1.3    74.6    -      -       -      +
    205A  GLU*     1.3    61.0    +      -       -      +
    207A  THR*     3.2    28.9    +      -       -      +
    208A  ASP*     2.7    59.5    +      -       -      +
    211A  HIS*     4.1     9.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  GLY*     4.2    13.9    -      -       -      -
    201A  GLU      3.1    14.8    +      -       -      +
    202A  LEU*     3.5    21.0    -      -       -      +
    204A  ARG*     1.3    78.9    -      -       -      +
    206A  ILE*     1.3    62.3    +      -       -      +
    208A  ASP*     3.4     6.5    +      -       -      +
    209A  GLN*     3.1    49.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  LEU*     3.5    23.3    -      -       +      -
    176A  ILE*     3.7    15.8    -      -       +      +
    177A  GLY*     4.1    20.9    -      -       -      +
    184A  TRP*     3.6    33.7    -      -       +      -
    194A  LEU*     4.1     8.1    -      -       +      -
    195A  VAL*     5.4     1.8    -      -       +      -
    198A  ALA*     5.1     5.2    -      -       +      -
    202A  LEU*     2.8    40.0    +      -       +      +
    203A  ARG*     3.8     4.9    -      -       +      +
    205A  GLU*     1.3    73.9    -      -       -      +
    207A  THR*     1.3    66.2    +      -       -      +
    209A  GLN*     3.2    11.2    +      -       -      +
    210A  LEU*     3.0    31.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126A  LEU*     2.9    36.7    -      -       +      +
    127A  THR      3.8     5.7    +      -       -      -
    128A  PRO*     3.4    18.2    -      -       -      +
    131A  LEU*     3.8     9.9    -      -       -      +
    203A  ARG      2.8    22.3    +      -       -      -
    204A  ARG*     3.2    24.2    -      -       -      +
    206A  ILE*     1.3    77.2    -      -       -      +
    208A  ASP*     1.3    63.0    +      -       -      +
    210A  LEU*     3.1    10.2    +      -       -      +
    211A  HIS*     2.9    28.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  ARG*     2.7    62.2    +      -       -      +
    205A  GLU*     3.8     6.9    -      -       -      +
    207A  THR*     1.3    74.2    -      -       -      +
    209A  GLN*     1.3    63.5    +      -       +      +
    211A  HIS*     3.2     8.9    +      -       -      +
    212A  GLN*     3.0    40.9    +      -       -      +
    230A   NI      4.1    11.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  ARG*     3.3    22.6    +      -       -      +
    175A  SER      3.6    18.4    +      -       -      -
    176A  ILE*     3.2    21.1    -      -       +      +
    177A  GLY*     2.8    30.1    +      -       -      +
    205A  GLU*     3.1    34.7    +      -       +      +
    206A  ILE*     3.2     7.6    +      -       -      +
    208A  ASP*     1.3    76.8    -      -       +      +
    210A  LEU*     1.3    58.5    +      -       -      +
    212A  GLN*     3.2     7.5    +      -       -      +
    213A  VAL*     2.9    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  LEU*     4.5    19.4    -      -       +      +
    126A  LEU*     4.0    26.7    -      -       +      -
    131A  LEU*     4.7     5.8    -      -       +      -
    145A  LEU*     4.0    25.1    -      -       +      -
    176A  ILE*     4.4    12.8    -      -       +      -
    181A  LEU*     3.9    27.6    -      -       +      -
    184A  TRP*     5.6     3.8    -      -       +      -
    206A  ILE*     3.0    33.8    +      -       +      +
    207A  THR*     3.1     8.5    +      -       -      +
    209A  GLN*     1.3    74.6    -      -       -      +
    211A  HIS*     1.3    65.8    +      -       +      +
    213A  VAL*     3.3     8.1    +      -       +      +
    214A  MET*     3.2    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  LEU      3.1    21.8    -      -       -      -
    124A  ALA*     3.3    24.4    +      -       -      +
    125A  THR*     4.7     2.2    -      -       -      -
    126A  LEU*     2.8    32.3    +      -       +      -
    204A  ARG*     4.1     6.1    -      -       -      -
    207A  THR*     2.9    27.4    +      -       +      +
    208A  ASP*     3.2     7.5    +      -       -      +
    210A  LEU*     1.3    77.0    -      -       +      +
    212A  GLN*     1.3    65.6    +      -       +      +
    214A  MET*     3.3    13.9    +      -       -      +
    215A  SER*     3.6     9.5    +      -       -      -
    230A   NI      2.1    45.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  ARG*     3.1    29.2    +      -       -      +
    208A  ASP*     3.0    30.0    +      -       -      +
    209A  GLN*     3.5     7.6    -      -       -      +
    210A  LEU      3.2     0.2    -      -       -      -
    211A  HIS*     1.3    78.4    -      -       +      +
    213A  VAL*     1.3    61.7    +      -       -      +
    215A  SER*     3.1    22.1    +      -       -      -
    216A  GLU*     3.5     9.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  LEU*     4.2    11.9    -      -       +      -
    171A  LEU*     4.3     8.5    -      -       +      +
    174A  ARG*     3.9    28.9    -      -       -      +
    176A  ILE*     4.0    13.9    -      -       +      -
    181A  LEU*     3.9    29.8    -      -       +      -
    209A  GLN      2.9    18.7    +      -       -      +
    210A  LEU*     3.5    12.1    -      -       +      +
    212A  GLN*     1.3    75.5    -      -       -      +
    214A  MET*     1.3    61.9    +      -       -      +
    216A  GLU*     3.0     9.6    +      -       -      +
    217A  VAL*     2.9    38.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  LEU      4.7     2.7    -      -       -      +
    120A  ALA*     3.5    36.3    -      -       +      +
    121A  SER*     4.3     6.3    -      -       -      +
    123A  LEU*     3.9    28.0    -      -       +      -
    124A  ALA*     3.9    23.1    -      -       +      +
    148A  LEU*     4.6     4.3    -      -       -      -
    210A  LEU      3.2    13.7    +      -       -      +
    211A  HIS      3.6     8.1    -      -       -      +
    212A  GLN      3.3     0.6    -      -       -      -
    213A  VAL*     1.3    84.0    -      -       -      +
    215A  SER*     1.3    62.0    +      -       -      +
    217A  VAL*     3.4    32.2    +      -       +      +
    218A  ALA*     3.3    19.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211A  HIS      3.6     5.9    +      -       -      -
    212A  GLN*     3.1    15.6    +      -       -      -
    214A  MET*     1.3    76.9    -      -       -      +
    216A  GLU*     1.3    69.4    +      -       -      +
    218A  ALA*     3.3    19.9    -      -       -      +
    219A  LEU*     3.6    10.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  GLN*     3.2    21.0    +      -       -      +
    171A  LEU*     3.7    23.6    -      -       +      -
    174A  ARG*     4.5    11.7    -      -       -      +
    212A  GLN      3.5    10.5    +      -       -      +
    213A  VAL      3.0     7.4    +      -       -      +
    215A  SER*     1.3    80.2    -      -       -      +
    217A  VAL*     1.3    67.0    +      -       -      +
    218A  ALA      3.1     0.4    -      -       -      -
    219A  LEU*     3.1    26.1    +      -       -      +
    220A  LEU*     3.0    18.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  LEU*     4.0    34.3    -      -       +      +
    148A  LEU*     4.0    22.9    -      -       +      -
    152A  LEU*     5.0     1.6    -      -       +      -
    171A  LEU*     4.1    12.6    -      -       +      -
    213A  VAL*     2.9    24.6    +      -       +      +
    214A  MET*     3.5    31.2    -      -       +      +
    215A  SER      3.3     0.2    -      -       -      -
    216A  GLU*     1.3    76.9    -      -       -      +
    218A  ALA*     1.3    58.0    +      -       -      +
    220A  LEU*     3.7     7.0    -      -       +      +
    221A  ARG*     2.8    32.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  MET      3.3     9.8    +      -       -      +
    215A  SER*     3.3    14.1    -      -       -      +
    216A  GLU      3.1     0.4    -      -       -      -
    217A  VAL*     1.3    80.4    -      -       -      +
    219A  LEU*     1.3    63.9    -      -       +      +
    221A  ARG*     3.4     7.4    +      -       -      +
    222A  GLN*     3.1    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  GLN*     4.0    13.2    -      -       -      +
    215A  SER      3.6    10.3    +      -       -      +
    216A  GLU*     3.1    34.4    +      -       -      +
    218A  ALA*     1.3    80.3    -      -       +      +
    220A  LEU*     1.3    63.5    +      -       -      +
    222A  GLN*     3.2    28.1    +      -       -      +
    223A  ALA*     3.2    13.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  LEU*     5.3     3.1    -      -       +      -
    152A  LEU*     3.5    31.6    -      -       +      -
    155A  ILE*     3.9    24.9    -      -       +      -
    164A  SER*     3.7    39.5    -      -       -      +
    167A  GLN*     3.7    26.1    -      -       +      +
    168A  ALA*     4.1    15.5    -      -       +      +
    171A  LEU*     4.3     6.5    -      -       +      -
    216A  GLU      3.0     8.2    +      -       -      +
    217A  VAL*     3.7     8.1    -      -       -      +
    219A  LEU*     1.3    76.4    -      -       -      +
    221A  ARG*     1.3    58.3    +      -       -      +
    223A  ALA*     3.2     4.0    +      -       +      +
    224A  VAL*     2.9    33.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  LEU*     3.2    37.2    +      -       +      +
    115A  LYS*     6.1     0.4    -      -       -      +
    117A  LEU*     3.9    18.7    -      -       +      +
    118A  ASP*     2.4    45.4    +      -       -      +
    217A  VAL*     2.8    24.9    +      -       +      +
    218A  ALA*     3.6     7.2    -      -       -      +
    220A  LEU*     1.3    72.6    -      -       -      +
    222A  GLN*     1.3    60.2    +      -       -      +
    224A  VAL*     3.2     5.9    +      -       -      +
    225A  GLU*     2.8    66.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  ALA      3.1    13.6    +      -       -      +
    219A  LEU*     3.2    25.6    +      -       -      +
    221A  ARG*     1.3    76.5    -      -       -      +
    223A  ALA*     1.3    62.2    +      -       -      +
    225A  GLU*     4.1    11.7    -      -       -      +
    226A  SER*     3.2    22.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161A  VAL*     5.9     1.6    -      -       +      +
    164A  SER*     3.7    19.7    -      -       -      +
    167A  GLN*     5.6     2.5    -      -       -      +
    219A  LEU      3.2     8.4    +      -       -      +
    220A  LEU*     3.6    10.3    -      -       +      +
    221A  ARG      3.2     0.4    -      -       -      -
    222A  GLN*     1.3    81.7    -      -       -      +
    224A  VAL*     1.3    58.3    +      -       -      +
    226A  SER*     3.3     7.6    +      -       -      -
    227A  GLU*     3.0    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  LEU*     3.8    31.9    -      -       +      +
    113A  THR*     4.6     2.7    -      -       -      +
    114A  LEU*     3.8    26.0    -      -       +      -
    155A  ILE*     4.0    35.2    -      -       +      -
    164A  SER*     4.6     6.5    -      -       -      +
    220A  LEU*     2.9    25.9    +      -       +      +
    221A  ARG*     3.8     3.6    -      -       -      +
    223A  ALA*     1.3    75.0    -      -       -      +
    225A  GLU*     1.3    59.9    +      -       -      +
    227A  GLU*     3.1    10.9    +      -       -      +
    228A  VAL*     2.9    29.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 225 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  LEU*     3.9    22.0    -      -       +      +
    221A  ARG*     2.8    69.0    +      -       +      +
    222A  GLN*     4.1     9.6    -      -       -      +
    224A  VAL*     1.3    72.5    -      -       -      +
    226A  SER*     1.3    62.1    +      -       -      +
    228A  VAL*     3.5     3.6    +      -       -      +
    229A  SER*     3.2    25.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  GLN      3.2    12.9    +      -       -      -
    223A  ALA*     3.4    11.7    -      -       -      -
    224A  VAL      3.1     0.4    -      -       -      -
    225A  GLU*     1.3    76.9    -      -       -      +
    227A  GLU*     1.3    63.9    +      -       -      +
    229A  SER*     3.3    22.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  LEU*     3.3    28.2    -      -       +      +
    159A  SER*     2.8    22.3    +      -       -      -
    160A  GLN*     2.8    37.6    +      -       -      +
    161A  VAL*     3.8    20.3    -      -       +      +
    164A  SER*     4.7     2.8    +      -       -      -
    223A  ALA      3.0    13.2    +      -       -      +
    224A  VAL*     3.1    12.2    +      -       -      +
    226A  SER*     1.3    78.6    -      -       -      +
    228A  VAL*     1.3    62.7    +      -       -      +
    229A  SER      3.4     3.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  LEU*     4.1    24.5    -      -       +      -
    111A  PRO*     4.1    39.9    -      -       +      -
    114A  LEU*     4.4     8.1    -      -       +      -
    224A  VAL*     2.9    22.8    +      -       +      +
    225A  GLU*     3.8     7.4    -      -       -      +
    227A  GLU*     1.3    78.3    -      -       -      +
    229A  SER*     1.3    61.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  GLU      3.2    14.1    +      -       -      -
    226A  SER*     3.3    20.6    +      -       -      -
    227A  GLU      3.3     3.7    -      -       -      -
    228A  VAL*     1.3    82.2    -      -       -      +
----------------------------------------------------------
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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