Contacts of the helix formed by residues 220 - 252 (chain B) in PDB entry 3N9Z


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 ARG 220 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  TRP*     3.7    34.3    -      -       -      -
    207B  PRO*     3.1    43.2    +      -       -      +
    208B  MET*     4.0    13.0    -      -       +      -
    211B  LEU*     4.1    18.8    -      -       +      +
    216B  PHE*     2.9    19.0    +      -       +      +
    219B  PHE*     1.3   103.3    +      -       +      +
    221B  THR*     1.3    59.1    +      -       -      +
    222B  LYS      3.3     2.9    -      -       -      -
    223B  THR*     3.3    10.5    +      -       -      -
    224B  TRP*     2.9    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216B  PHE      3.6     0.9    +      -       -      -
    217B  ARG      2.9    24.7    +      -       -      +
    218B  LEU*     3.7    13.0    +      -       -      -
    219B  PHE      3.6     1.7    -      -       -      -
    220B  ARG*     1.3    76.0    -      -       -      +
    222B  LYS*     1.3    57.1    +      -       -      +
    224B  TRP*     3.7     9.0    -      -       +      +
    225B  LYS*     3.0    29.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220B  ARG      3.3     0.6    -      -       -      -
    221B  THR*     1.3    78.5    -      -       -      +
    223B  THR*     1.3    64.0    +      -       -      +
    225B  LYS*     3.3    11.2    +      -       +      +
    226B  ASP*     3.1    48.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204B  THR*     3.0    37.8    -      -       +      +
    207B  PRO*     3.9    32.7    -      -       +      +
    208B  MET*     4.1     7.6    -      -       +      -
    220B  ARG*     3.3    15.7    +      -       -      -
    222B  LYS*     1.3    79.6    -      -       -      +
    224B  TRP*     1.3    58.0    +      -       -      +
    226B  ASP*     3.2     8.7    +      -       -      +
    227B  HIS*     2.8    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86B  PRO*     3.6    20.0    -      -       +      -
     89B  ALA*     4.0     8.7    -      -       +      -
     90B  TYR*     3.7    27.8    -      -       +      -
     93B  TYR*     5.3     2.9    -      +       +      -
     94B  TYR*     4.5    14.5    +      +       -      -
    208B  MET*     3.7    31.6    -      -       +      -
    216B  PHE*     3.7    21.5    -      +       -      +
    217B  ARG*     4.1    38.5    -      -       +      +
    220B  ARG      2.9    17.6    +      -       -      +
    221B  THR*     3.7    10.8    -      -       +      +
    223B  THR*     1.3    76.9    -      -       -      +
    225B  LYS*     1.3    59.2    +      -       +      +
    227B  HIS*     3.3    11.9    +      +       -      +
    228B  VAL*     2.9    51.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 225 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221B  THR*     3.0    19.0    +      -       +      +
    222B  LYS*     3.5    10.5    -      -       +      +
    224B  TRP*     1.3    81.7    -      -       +      +
    226B  ASP*     1.3    63.9    -      -       -      +
    228B  VAL*     3.5     6.7    +      -       -      +
    229B  ALA*     3.1    26.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 226 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200B  GLN*     5.6     2.4    -      -       -      +
    204B  THR*     4.0    19.0    -      -       +      +
    222B  LYS*     3.1    44.9    +      -       -      +
    223B  THR*     3.6     9.0    -      -       -      +
    225B  LYS*     1.3    81.1    -      -       -      +
    227B  HIS*     1.3    65.8    +      -       -      +
    229B  ALA*     3.2     8.7    +      -       -      +
    230B  ALA*     3.0    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 227 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86B  PRO*     3.7    17.6    +      -       +      +
     87B  TRP*     3.6    14.1    -      +       -      -
     90B  TYR*     4.9     1.3    -      -       +      -
    201B  MET*     3.3    10.8    +      -       +      -
    204B  THR*     2.9    26.5    +      -       -      +
    205B  SER*     3.3    30.5    +      -       -      -
    208B  MET*     3.6    21.3    -      -       +      -
    223B  THR      2.8    17.1    +      -       -      +
    224B  TRP*     3.4    12.3    -      +       -      +
    226B  ASP*     1.3    76.3    -      -       -      +
    228B  VAL*     1.3    62.4    +      -       -      +
    230B  ALA*     3.1     6.6    +      -       -      +
    231B  TRP*     3.1    56.3    +      +       -      -
----------------------------------------------------------
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Residues in contact with VAL 228 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  TYR*     3.8    20.0    -      -       +      -
     94B  TYR*     3.8    34.8    -      -       +      +
    224B  TRP*     2.9    56.4    +      -       +      +
    225B  LYS*     3.7     7.4    -      -       -      +
    227B  HIS*     1.3    74.5    -      -       -      +
    229B  ALA*     1.3    64.1    +      -       -      +
    230B  ALA      3.3     0.2    +      -       -      -
    231B  TRP      3.5     0.5    +      -       -      -
    232B  ASP*     3.0    36.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 229 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225B  LYS*     3.1    15.3    +      -       +      +
    226B  ASP*     3.2    11.8    +      -       -      +
    228B  VAL*     1.3    77.4    -      -       -      +
    230B  ALA*     1.3    62.6    +      -       -      +
    232B  ASP*     3.4    10.1    +      -       -      +
    233B  VAL*     3.2    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 230 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197B  ALA*     3.5    28.3    -      -       -      +
    200B  GLN*     4.0    11.7    -      -       +      -
    201B  MET*     3.6    17.9    -      -       -      +
    226B  ASP      3.0    12.4    +      -       -      +
    227B  HIS*     3.1     9.4    +      -       -      +
    229B  ALA*     1.3    74.1    -      -       -      +
    231B  TRP*     1.3    66.7    +      -       -      +
    233B  VAL*     3.3     6.8    +      -       -      +
    234B  ILE*     3.1    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 231 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87B  TRP*     3.8    29.0    -      +       -      +
     90B  TYR*     3.3    39.3    -      +       +      -
     91B  HIS*     3.9    22.2    -      +       -      -
    101B  LEU*     5.8     2.5    -      -       +      -
    201B  MET*     3.4    37.8    -      -       +      +
    227B  HIS*     3.1    51.9    +      +       -      -
    228B  VAL      3.9     0.9    -      -       -      +
    230B  ALA*     1.3    76.1    -      -       -      +
    232B  ASP*     1.3    53.0    +      -       -      +
    234B  ILE*     3.1    27.0    +      -       +      +
    235B  PHE*     2.8    61.5    +      +       -      -
    282B  THR*     5.4     2.5    -      -       +      -
    283B  GLU*     6.0     6.1    -      -       +      -
    286B  ALA*     5.3     4.3    -      -       +      -
    602B  HC9      5.0    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  TYR*     2.7    28.3    +      -       -      -
     94B  TYR*     5.3     5.1    -      -       -      -
     96B  ARG*     3.3    20.5    +      -       -      +
    228B  VAL*     3.0    33.7    +      -       -      +
    229B  ALA*     3.5    10.2    -      -       -      +
    230B  ALA      3.2     0.2    -      -       -      -
    231B  TRP*     1.3    74.9    -      -       -      +
    233B  VAL*     1.3    54.6    +      -       +      +
    235B  PHE*     4.1     2.7    -      -       -      +
    236B  SER*     2.6    39.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193B  ARG*     3.5    44.6    -      -       -      +
    194B  PHE*     4.1     6.3    -      -       -      -
    197B  ALA*     3.6    24.2    -      -       +      -
    229B  ALA*     3.2    15.1    +      -       +      +
    230B  ALA*     3.6     7.2    -      -       -      +
    231B  TRP      3.3     0.2    -      -       -      -
    232B  ASP*     1.3    74.3    -      -       +      +
    234B  ILE*     1.3    67.3    +      -       -      +
    236B  SER*     3.4     3.9    +      -       -      -
    237B  LYS*     3.0    42.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 234 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  PHE*     3.6    22.0    -      -       +      -
    197B  ALA*     4.1     9.6    -      -       +      +
    198B  ILE*     4.1    27.1    -      -       +      -
    201B  MET*     3.8    31.9    -      -       +      -
    230B  ALA      3.1    15.6    +      -       -      +
    231B  TRP*     3.1    32.5    +      -       +      +
    233B  VAL*     1.3    75.1    -      -       -      +
    235B  PHE*     1.3    61.9    +      -       -      +
    238B  ALA*     3.1    24.9    +      -       -      +
    282B  THR*     3.7    21.5    -      -       +      -
    286B  ALA*     4.4    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 235 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  TYR*     3.8    19.3    -      +       -      +
     91B  HIS*     3.4    36.3    -      +       -      -
     96B  ARG*     3.6    36.8    -      -       +      +
     97B  PRO*     3.9    24.2    -      -       +      -
    231B  TRP*     2.8    46.7    +      +       -      +
    232B  ASP      4.2     1.3    -      -       -      +
    234B  ILE*     1.3    71.0    -      -       -      +
    236B  SER*     1.3    65.5    -      -       -      +
    239B  ASP*     3.0    44.1    +      -       -      +
    279B  ALA*     5.6     2.7    -      -       -      -
    282B  THR*     4.0    28.9    -      -       +      -
    283B  GLU*     6.3     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 236 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96B  ARG*     5.2     3.3    +      -       -      +
    232B  ASP*     2.6    25.3    +      -       -      +
    233B  VAL*     3.8     4.9    -      -       -      -
    235B  PHE*     1.3    76.8    -      -       -      +
    237B  LYS*     1.3    69.0    +      -       -      +
    239B  ASP*     3.9     3.0    -      -       -      +
    240B  ILE*     3.1    37.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 237 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190B  GLU*     2.8    60.5    +      -       +      +
    193B  ARG*     3.7    20.7    -      -       -      +
    194B  PHE*     3.4    36.1    -      -       +      +
    233B  VAL*     3.0    23.4    +      -       +      +
    236B  SER*     1.3    80.6    -      -       -      +
    238B  ALA*     1.3    66.1    +      -       -      +
    239B  ASP      3.3     0.2    +      -       -      -
    240B  ILE*     3.3    14.4    +      -       +      +
    241B  TYR*     3.0    41.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 238 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  PHE*     4.4     3.0    -      -       +      -
    234B  ILE      3.1    19.6    +      -       -      +
    235B  PHE      4.1     0.9    -      -       -      +
    237B  LYS*     1.3    77.1    -      -       -      +
    239B  ASP*     1.3    59.7    +      -       -      +
    241B  TYR*     3.4     4.0    +      -       -      +
    242B  THR*     3.0    32.2    +      -       -      -
    281B  VAL*     4.8     1.5    -      -       +      +
    282B  THR*     3.3    39.0    -      -       +      +
    285B  LEU*     4.0    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96B  ARG*     5.6     1.4    +      -       -      -
     97B  PRO*     5.8     2.9    -      -       -      +
    235B  PHE*     3.0    33.3    +      -       -      +
    236B  SER*     4.0     3.6    -      -       -      +
    238B  ALA*     1.3    74.9    -      -       -      +
    240B  ILE*     1.3    59.7    +      -       +      +
    242B  THR*     3.3     4.1    +      -       -      -
    243B  GLN*     2.9    50.1    +      -       -      +
    278B  LYS*     3.2    35.1    +      -       -      +
    282B  THR*     3.6    13.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 240 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  SER*     3.1    28.3    +      -       -      +
    237B  LYS*     3.8    14.6    -      -       +      +
    239B  ASP*     1.3    75.3    -      -       +      +
    241B  TYR*     1.3    60.8    +      -       +      +
    243B  GLN*     4.1     5.8    -      -       -      +
    244B  ASN*     3.0    55.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 241 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  PHE*     3.9    28.9    -      +       -      -
    172B  THR*     5.5     1.1    -      -       +      -
    176B  PHE*     3.5    30.1    -      +       +      -
    180B  GLN*     3.9    23.7    +      -       -      -
    188B  ASN*     5.8     1.0    +      -       -      -
    190B  GLU*     5.2     0.7    -      -       -      +
    191B  ALA*     3.9    19.2    +      -       -      +
    194B  PHE*     5.3     3.1    -      +       -      -
    237B  LYS*     3.0    41.1    +      -       +      +
    238B  ALA*     3.6     9.6    -      -       -      +
    240B  ILE*     1.3    80.5    -      -       +      +
    242B  THR*     1.3    61.8    +      -       -      +
    244B  ASN*     3.9     6.4    -      -       -      +
    245B  PHE*     3.1    24.9    +      -       -      +
    285B  LEU*     4.4    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 242 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176B  PHE*     4.6     0.2    -      -       -      -
    238B  ALA      3.0    18.6    +      -       -      -
    239B  ASP      3.9     3.1    -      -       -      -
    241B  TYR*     1.3    74.3    -      -       -      +
    243B  GLN*     1.3    57.6    +      -       -      +
    245B  PHE*     3.3     3.6    +      -       -      +
    246B  TYR*     3.0    27.8    +      -       -      +
    263B  LEU*     4.3    27.6    -      -       +      +
    267B  LEU*     5.4     0.8    -      -       +      +
    274B  PHE*     3.9    26.9    -      -       +      -
    277B  ILE*     5.1     0.7    -      -       +      -
    278B  LYS*     4.2    25.7    +      -       +      +
    281B  VAL*     3.5    23.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 243 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239B  ASP*     2.9    28.7    +      -       -      +
    240B  ILE*     4.1     4.9    -      -       -      +
    242B  THR*     1.3    75.6    -      -       -      +
    244B  ASN*     1.3    63.7    +      -       -      +
    246B  TYR*     3.4     6.9    +      -       -      +
    247B  TRP*     3.1    37.6    +      -       +      -
    274B  PHE*     4.7     7.4    -      -       +      -
    278B  LYS*     3.1    33.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 244 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240B  ILE*     3.0    40.9    +      -       -      +
    241B  TYR*     3.9     6.8    -      -       -      +
    243B  GLN*     1.3    74.4    -      -       -      +
    245B  PHE*     1.3    60.2    +      -       -      +
    247B  TRP*     3.4     4.1    +      -       -      +
    248B  GLU*     2.9    48.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 245 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176B  PHE*     3.5    42.8    -      +       +      -
    178B  GLU*     4.9    12.3    -      -       -      -
    241B  TYR      3.1    19.2    +      -       -      +
    242B  THR      3.6     4.0    -      -       -      +
    244B  ASN*     1.3    76.6    -      -       -      +
    246B  TYR*     1.3    64.5    +      -       -      +
    248B  GLU*     3.5    10.0    +      -       +      +
    249B  LEU*     3.0    45.2    +      -       +      +
    260B  ARG*     5.0     3.6    -      -       +      -
    263B  LEU*     3.5    26.0    -      -       +      -
    264B  TYR*     3.7    40.4    -      +       +      -
    267B  LEU*     3.8    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242B  THR      3.0    14.4    +      -       -      +
    243B  GLN*     3.4    12.1    -      -       -      +
    245B  PHE*     1.3    82.2    -      -       -      +
    247B  TRP*     1.3    96.1    +      +       -      +
    249B  LEU*     3.3    15.3    -      -       +      +
    250B  ARG*     2.9    65.4    +      -       -      -
    267B  LEU*     4.2    17.9    -      -       +      -
    274B  PHE*     3.7    38.8    -      +       +      -
----------------------------------------------------------
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Residues in contact with TRP 247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243B  GLN*     3.1    33.2    +      -       +      +
    244B  ASN*     4.1     4.3    -      -       -      +
    245B  PHE      3.3     0.2    -      -       -      -
    246B  TYR*     1.3    96.8    -      +       -      +
    248B  GLU*     1.3    59.7    +      -       -      +
    249B  LEU      3.2     1.6    -      -       -      -
    250B  ARG*     3.1    32.6    +      -       +      +
    251B  GLN*     3.0    41.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178B  GLU*     4.2    19.2    -      -       -      +
    244B  ASN*     2.9    35.6    +      -       -      +
    245B  PHE*     3.9     8.7    -      -       -      +
    247B  TRP*     1.3    73.1    -      -       -      +
    249B  LEU*     1.3    60.4    +      -       -      +
    251B  GLN*     3.6    21.8    -      -       -      +
    252B  LYS*     2.9    51.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245B  PHE*     3.0    26.9    +      -       +      +
    246B  TYR*     3.3    13.2    -      -       +      +
    248B  GLU*     1.3    77.2    -      -       -      +
    250B  ARG*     1.3    67.3    +      -       -      +
    252B  LYS*     3.8     2.2    -      -       -      -
    253B  GLY*     2.9    26.9    +      -       -      -
    254B  SER      4.6     0.7    +      -       -      -
    264B  TYR*     3.4    40.4    -      -       +      +
    267B  LEU*     4.3    32.3    -      -       +      -
    268B  GLY*     5.7     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246B  TYR*     2.9    74.0    +      -       -      -
    247B  TRP*     3.1    29.7    +      -       +      +
    249B  LEU*     1.3    88.4    -      -       -      +
    251B  GLN*     1.3    65.4    +      -       +      +
    253B  GLY*     3.5     9.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247B  TRP*     3.0    35.5    +      -       +      +
    248B  GLU*     3.6    22.5    -      -       -      +
    249B  LEU      3.3     0.2    -      -       -      -
    250B  ARG*     1.3    76.0    -      -       +      +
    252B  LYS*     1.3    62.0    +      -       +      +
    253B  GLY*     3.0     8.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178B  GLU*     5.2     6.5    +      -       -      -
    248B  GLU*     2.9    37.6    +      -       +      +
    249B  LEU*     3.8     3.4    -      -       -      +
    251B  GLN*     1.3    75.0    -      -       +      +
    253B  GLY*     1.3    63.6    +      -       -      +
    254B  SER*     2.7    24.5    +      -       -      +
    256B  HIS*     5.8     2.9    -      -       -      +
    260B  ARG*     5.2    14.2    -      -       -      +
----------------------------------------------------------
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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