Contacts of the helix formed by residues 203 - 233 (chain A) in PDB entry 3L6D


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 PRO 203 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198A  ASP*     5.3     3.1    -      -       -      +
    201A  GLY      3.6     8.4    -      -       -      +
    202A  LEU*     1.3    83.5    -      -       +      +
    204A  VAL*     1.3    64.9    +      -       -      +
    205A  SER*     3.2    15.1    +      -       -      +
    206A  LYS*     4.5    15.7    -      -       +      -
    207A  THR*     2.7    31.8    +      -       -      +
    171B  GLU*     5.8     4.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  VAL*     3.8    22.7    -      -       +      +
    198A  ASP*     4.1    27.6    +      -       +      +
    202A  LEU      3.4     1.8    +      -       -      +
    203A  PRO*     1.3    71.3    -      -       -      +
    205A  SER*     1.3    62.5    +      -       -      +
    206A  LYS      3.1     1.7    +      -       -      -
    207A  THR*     4.5     4.5    -      -       -      +
    208A  ALA*     3.3    22.3    +      -       -      +
    230B  LEU*     3.6    48.4    -      -       +      +
    231B  GLU*     5.2     0.9    -      -       -      +
    233B  GLN*     4.6     8.1    -      -       -      +
    290B  THR*     4.5     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  PRO*     4.0    13.2    -      -       -      +
    204A  VAL*     1.3    78.9    -      -       -      +
    206A  LYS*     1.3    71.3    +      -       -      +
    209A  ARG      5.8     0.2    -      -       -      -
    230B  LEU      4.7     2.0    +      -       -      -
    231B  GLU*     3.6    41.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  PRO*     3.2    15.5    +      -       +      +
    204A  VAL      3.2     0.2    -      -       -      -
    205A  SER*     1.3    89.3    +      -       -      +
    207A  THR*     1.3    67.0    +      -       -      +
    208A  ALA      3.4     2.5    -      -       -      -
    209A  ARG*     3.5     7.5    +      -       -      +
    210A  LEU*     3.2    23.8    +      -       +      +
----------------------------------------------------------
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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
----------------------------------------------------------
    194A  VAL*     5.8     6.7    -      -       -      +
    197A  GLY*     5.1     4.9    -      -       -      -
    202A  LEU*     3.4    42.2    -      -       +      +
    203A  PRO*     2.7    28.3    +      -       -      +
    204A  VAL*     4.6     1.8    -      -       -      -
    206A  LYS*     1.3    77.5    -      -       -      +
    208A  ALA*     1.3    60.0    +      -       -      +
    210A  LEU*     3.7     5.5    -      -       +      +
    211A  LEU*     2.8    35.4    +      -       +      +
    175B  PHE*     4.1    16.6    -      -       +      -
    178B  VAL*     5.1     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  PHE*     3.4     9.4    -      -       +      -
    194A  VAL*     4.0    21.4    -      -       +      +
    204A  VAL*     3.3    15.2    +      -       -      +
    207A  THR*     1.3    76.5    -      -       -      +
    209A  ARG*     1.3    64.3    +      -       -      +
    211A  LEU*     3.3     0.9    +      -       -      +
    212A  LEU*     3.0    21.0    +      -       -      +
    227B  VAL*     3.9    14.4    -      -       +      -
    230B  LEU*     3.6    34.8    -      -       +      -
    231B  GLU*     5.9     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  VAL      4.9     0.2    +      -       -      -
    205A  SER      5.7     0.2    +      -       -      -
    206A  LYS*     3.5     9.4    +      -       -      +
    207A  THR      3.3     0.6    -      -       -      -
    208A  ALA*     1.3    79.5    -      -       -      +
    210A  LEU*     1.3    62.6    -      -       -      +
    212A  LEU*     3.2     5.4    +      -       +      +
    213A  GLU*     2.9    54.8    +      -       -      +
    224B  GLU*     2.8    31.7    +      -       -      -
    227B  VAL*     3.7    25.5    -      -       +      +
    228B  ARG*     4.7     9.7    -      -       -      +
    231B  GLU*     3.0    43.2    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
    206A  LYS      3.2    16.3    +      -       -      +
    207A  THR*     3.9     6.1    -      -       -      +
    209A  ARG*     1.3    78.0    -      -       -      +
    211A  LEU*     1.3    57.9    +      -       -      +
    213A  GLU*     4.7     7.6    -      -       +      +
    214A  THR*     2.7    46.9    +      -       -      +
    165B  VAL*     4.8    23.1    -      -       +      -
    167B  LEU*     4.4    17.9    -      -       +      -
    175B  PHE*     3.6    33.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  PHE*     4.1    11.7    -      -       +      -
    193A  ALA*     3.7    32.5    -      -       +      +
    194A  VAL*     3.8    24.0    -      -       +      +
    207A  THR*     2.8    23.0    +      -       +      +
    208A  ALA      3.6     4.5    -      -       -      +
    210A  LEU*     1.3    74.5    -      -       -      +
    212A  LEU*     1.3    60.6    +      -       -      +
    215A  SER*     2.8    30.3    +      -       -      -
    175B  PHE*     3.4    22.8    -      -       +      -
    178B  VAL*     3.8     9.0    -      -       +      +
    179B  LEU*     3.3    40.2    -      -       +      +
    182B  HIS*     4.6     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  PHE*     3.8    12.9    -      -       +      -
    208A  ALA      3.0    17.5    +      -       -      +
    209A  ARG*     3.6     6.1    -      -       -      +
    211A  LEU*     1.3    77.6    -      -       -      +
    213A  GLU*     1.3    62.6    -      -       +      +
    215A  SER*     3.5     4.9    +      -       -      +
    216A  ARG*     3.0    40.1    +      -       +      +
    182B  HIS*     5.4     0.9    -      -       -      +
    220B  ALA*     5.1     2.7    -      -       -      +
    223B  LEU*     3.6    34.3    -      -       +      -
    224B  GLU*     3.5    45.1    -      -       +      +
    227B  VAL*     3.9    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  ARG*     2.9    57.8    +      -       -      +
    210A  LEU*     4.1     8.3    +      -       +      +
    212A  LEU*     1.3    80.2    -      -       +      +
    214A  THR*     1.3    62.7    +      -       -      +
    215A  SER      3.5     0.5    +      -       -      -
    216A  ARG*     3.8    22.5    +      -       -      +
    217A  PHE      5.0     1.2    +      -       -      -
    140B  HIS*     3.5    21.4    +      -       +      -
    224B  GLU*     5.0     3.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  LEU*     2.7    39.8    +      -       -      +
    213A  GLU*     1.3    76.7    -      -       -      +
    215A  SER*     1.3    58.2    +      -       -      +
    217A  PHE      5.3     0.6    +      -       -      -
    218A  PHE*     4.7     3.5    +      -       -      +
    128B  VAL*     4.3    14.0    -      -       +      +
    140B  HIS*     3.7    45.3    +      -       +      +
    141B  SER      5.5     1.1    -      -       -      +
    142B  ILE*     4.9     6.5    -      -       +      -
    165B  VAL*     5.5     4.0    -      -       +      +
    175B  PHE*     4.0     9.8    -      -       +      -
    179B  LEU*     3.8    28.3    -      -       +      -
----------------------------------------------------------
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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  LEU      2.8    21.3    +      -       -      -
    212A  LEU*     3.5     5.2    +      -       -      +
    214A  THR*     1.3    79.6    -      -       -      +
    216A  ARG*     1.3    67.2    +      -       -      +
    217A  PHE      3.4     1.6    -      -       -      -
    218A  PHE*     3.3     7.5    +      -       -      +
    219A  VAL*     2.9    33.3    +      -       -      +
    128B  VAL*     5.5     0.7    -      -       -      -
    179B  LEU*     3.5    16.4    -      -       -      -
    182B  HIS*     3.5    26.8    +      -       -      -
    183B  ALA*     4.4     8.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  LEU*     3.0    25.8    +      -       +      +
    213A  GLU*     3.8    16.2    +      -       -      +
    214A  THR      3.6     1.6    -      -       -      -
    215A  SER*     1.3    76.8    -      -       -      +
    217A  PHE*     1.3    72.2    +      -       -      +
    219A  VAL*     3.9     3.5    -      -       -      +
    220A  ALA*     3.0    32.4    +      -       +      +
    138B  GLU*     3.6    24.5    +      -       -      +
    140B  HIS*     5.8     3.2    +      -       -      -
    163B  HIS*     6.0     2.4    +      -       -      -
    220B  ALA*     6.5     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  GLU      5.0     1.6    +      -       -      -
    214A  THR      5.3     0.4    +      -       -      -
    215A  SER      3.4     0.2    -      -       -      -
    216A  ARG*     1.3    90.2    -      -       -      +
    218A  PHE*     1.3    64.0    +      -       -      +
    220A  ALA*     4.5     5.6    -      -       +      -
    221A  ASP*     2.8    62.0    +      -       +      +
    128B  VAL      6.2     0.2    -      -       -      -
    133B  ASN*     4.1    20.6    -      -       +      -
    136B  HIS*     3.7    33.2    -      +       -      -
    138B  GLU*     3.7    54.5    -      -       +      +
    139B  SER*     4.1    13.9    -      -       -      -
    140B  HIS*     5.6     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  THR      4.7     2.6    +      -       -      +
    215A  SER*     3.3    10.8    +      -       -      +
    217A  PHE*     1.3    84.4    -      -       -      +
    219A  VAL*     1.3    58.5    +      -       -      +
    221A  ASP*     4.0     3.7    -      -       -      +
    222A  ALA*     3.0    30.1    +      -       -      +
    128B  VAL*     3.4    40.8    -      -       +      +
    129B  ALA*     3.8    20.4    -      -       -      -
    130B  TYR*     3.5    43.0    -      +       -      -
    180B  HIS*     5.0     5.4    -      +       -      -
    183B  ALA*     3.8    31.2    -      -       +      -
    184B  PHE*     4.0    25.1    -      +       -      -
    187B  MSE      4.7     6.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  SER*     2.9    26.6    +      -       -      +
    216A  ARG*     3.9     3.4    -      -       -      +
    218A  PHE*     1.3    74.8    -      -       +      +
    220A  ALA*     1.3    62.4    +      -       -      +
    222A  ALA*     3.0     6.4    +      -       -      +
    223A  LEU*     2.8    50.4    +      -       +      +
    182B  HIS*     5.0     5.4    -      -       -      +
    183B  ALA*     3.7    40.4    -      -       +      +
    186B  ALA*     4.3    18.6    -      -       +      -
    187B  MSE      5.1     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  ARG*     3.0    23.4    +      -       +      +
    217A  PHE*     3.9     6.3    -      -       +      +
    219A  VAL*     1.3    78.0    -      -       -      +
    221A  ASP*     1.3    58.5    +      -       -      +
    223A  LEU*     3.5     8.5    +      -       -      +
    224A  GLU*     3.0    42.9    +      -       -      +
    212B  LEU*     5.2     0.6    -      -       -      +
    216B  ARG*     5.1    10.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  PHE*     2.8    44.3    +      -       +      +
    218A  PHE*     4.0     3.8    -      -       -      +
    220A  ALA*     1.3    69.5    -      -       -      +
    222A  ALA*     1.3    65.6    +      -       -      +
    224A  GLU*     3.3    12.9    +      -       -      +
    225A  GLU*     3.0    22.2    +      -       -      +
    130B  TYR*     5.0     1.7    -      -       -      -
    132B  ARG*     2.8    33.7    +      -       -      -
    133B  ASN*     3.0    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  PHE      3.0    19.8    +      -       -      +
    219A  VAL      3.0     4.0    +      -       -      +
    221A  ASP*     1.3    78.4    +      -       -      +
    223A  LEU*     1.3    57.5    +      -       -      +
    225A  GLU*     3.4     2.1    +      -       -      +
    226A  ALA*     3.0    29.0    +      -       -      +
    130B  TYR*     4.2    15.7    -      -       +      -
    132B  ARG*     4.1     9.9    -      -       -      +
    187B  MSE      3.8    36.3    -      -       +      +
    191B  PHE*     6.3     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  HIS*     4.6    17.3    -      -       +      +
    219A  VAL*     2.8    38.9    +      -       +      +
    220A  ALA*     4.0     4.9    -      -       -      +
    222A  ALA*     1.3    72.9    -      -       -      +
    224A  GLU*     1.3    56.2    +      -       -      +
    226A  ALA*     3.5     5.0    +      -       -      +
    227A  VAL*     3.0    33.1    +      -       -      +
    186B  ALA*     4.6     1.1    -      -       +      +
    187B  MSE      3.9    26.0    -      -       +      +
    190B  PHE*     3.7    34.9    -      -       +      -
    191B  PHE*     5.3     3.1    -      -       +      -
    212B  LEU*     3.7    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  ALA*     3.0    29.4    +      -       -      +
    221A  ASP*     3.3    10.6    +      -       -      +
    223A  LEU*     1.3    73.9    -      -       -      +
    225A  GLU*     1.3    56.6    +      -       -      +
    227A  VAL*     3.4     4.8    +      -       -      +
    228A  ARG*     3.1    26.3    +      -       -      +
    209B  ARG*     5.1     3.5    +      -       -      -
    212B  LEU*     4.0    19.9    -      -       +      +
    216B  ARG*     3.8    20.3    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
    221A  ASP*     3.0    17.1    +      -       -      +
    222A  ALA      3.7     3.1    -      -       -      +
    224A  GLU*     1.3    73.8    -      -       -      +
    226A  ALA*     1.3    61.1    +      -       -      +
    228A  ARG*     2.7    50.5    +      -       -      +
    229A  ARG*     2.8    51.3    +      -       -      +
    239A  GLN*     5.5     1.7    +      -       -      -
    285A  ASP*     5.7     1.1    -      -       -      +
    132B  ARG*     3.6    39.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  ALA      3.0    17.7    +      -       -      +
    223A  LEU*     3.6     8.3    -      -       -      +
    225A  GLU*     1.3    77.3    -      -       -      +
    227A  VAL*     1.3    57.0    +      -       -      +
    229A  ARG*     3.3     4.7    +      -       -      +
    230A  LEU*     2.9    37.8    +      -       +      +
    285A  ASP*     5.4     0.4    -      -       -      -
    286A  ILE*     6.3     0.4    -      -       +      -
    287A  ALA*     4.1    13.6    -      -       +      +
    187B  MSE      6.3     0.2    -      -       +      -
    190B  PHE*     5.0     3.6    -      -       +      -
    191B  PHE*     3.7    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  LEU      3.0    20.5    +      -       -      +
    224A  GLU*     3.6     7.0    -      -       -      +
    225A  GLU      3.3     0.2    -      -       -      -
    226A  ALA*     1.3    72.1    -      -       -      +
    228A  ARG*     1.3    57.1    +      -       -      +
    230A  LEU*     3.1     5.8    +      -       -      +
    231A  GLU*     2.8    42.2    +      -       +      +
    190B  PHE*     3.7    18.8    -      -       +      -
    208B  ALA*     3.7    26.0    -      -       +      +
    209B  ARG*     3.7    46.0    -      -       +      +
    212B  LEU*     4.1    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  GLU      3.1    14.3    +      -       -      +
    225A  GLU*     2.7    45.6    +      -       -      +
    227A  VAL*     1.3    75.7    -      -       -      +
    229A  ARG*     1.3    79.6    +      -       -      +
    231A  GLU*     3.4    11.6    +      -       -      +
    232A  THR*     3.0    45.2    +      -       +      +
    234A  ASP*     4.4    10.3    +      -       -      -
    209B  ARG*     5.0     6.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  GLU*     2.8    44.3    +      -       -      +
    226A  ALA*     3.7     6.3    -      -       -      +
    228A  ARG*     1.3    88.9    -      -       -      +
    230A  LEU*     1.3    52.6    +      -       -      +
    232A  THR*     3.8     5.4    -      -       -      -
    233A  GLN*     2.7    32.1    +      -       -      -
    234A  ASP*     3.0    51.5    +      -       -      +
    235A  PHE*     4.9     4.3    -      -       +      -
    236A  LYS      3.0    24.6    +      -       -      +
    238A  ASP*     3.2    29.5    +      -       -      -
    239A  GLN*     4.2    11.5    -      -       -      +
    285A  ASP*     3.5    35.0    +      -       -      +
    287A  ALA*     4.7     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226A  ALA*     2.9    34.7    +      -       +      +
    227A  VAL      3.1     4.0    +      -       -      +
    229A  ARG*     1.3    72.3    -      -       -      +
    231A  GLU*     1.3    59.6    +      -       -      +
    233A  GLN*     2.9    25.4    +      -       -      +
    235A  PHE*     3.8    28.7    -      -       +      -
    287A  ALA*     3.9     8.1    -      -       +      +
    290A  THR*     3.8    26.7    -      -       +      +
    190B  PHE*     4.5    11.2    -      -       +      -
    191B  PHE*     5.1     1.1    -      -       +      -
    194B  VAL*     4.2     5.8    -      -       +      -
    204B  VAL*     3.6    27.4    -      -       +      +
    205B  SER*     3.6    11.1    +      -       -      -
    208B  ALA*     3.8    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  VAL*     2.8    24.4    +      -       +      +
    228A  ARG*     3.8     8.3    -      -       -      +
    230A  LEU*     1.3    78.8    -      -       +      +
    232A  THR*     1.3    60.2    +      -       -      +
    233A  GLN*     3.3     5.7    +      -       -      +
    205B  SER*     3.4    33.2    -      -       -      +
    208B  ALA*     5.7     1.1    -      -       +      -
    209B  ARG*     2.9    66.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  ARG*     3.0    39.3    +      -       -      +
    229A  ARG*     3.5     7.2    -      -       -      +
    231A  GLU*     1.3    76.2    -      -       -      +
    233A  GLN*     1.3    68.7    +      -       -      +
    234A  ASP*     3.2    30.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  ARG      2.7    10.1    +      -       -      -
    230A  LEU*     2.9    30.3    +      -       -      +
    231A  GLU      3.3     5.1    -      -       -      +
    232A  THR*     1.3    80.3    -      -       -      +
    234A  ASP*     1.3    56.7    +      -       -      +
    235A  PHE*     3.7    35.3    +      -       -      -
    291A  LYS*     5.5     1.0    -      -       -      -
    204B  VAL*     5.2     7.3    -      -       -      +
    205B  SER*     4.7     8.4    -      -       -      +
----------------------------------------------------------
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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