Contacts of the helix formed by residues 11 - 38 (chain D) in PDB entry 2WP9


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 ASN 11 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  SER*     3.5    20.0    -      -       -      +
    199B  ASP*     4.8     6.7    -      -       -      +
    200B  ALA*     4.5     3.6    -      -       -      +
    237B  ASN*     5.5     8.7    +      -       -      +
     12D  GLY*     1.3    57.1    +      -       -      +
     13D  VAL*     2.8    25.2    +      -       -      +
     14D  HIS*     2.9    36.6    +      -       -      +
     15D  ASP*     3.5    11.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 12 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  SER      2.9    16.9    +      -       -      -
    199B  ASP      3.6     7.1    -      -       -      -
    200B  ALA*     3.6    23.7    -      -       -      +
    204B  PHE*     3.7    15.8    -      -       -      +
     11D  ASN*     1.3    67.9    -      -       -      +
     13D  VAL*     1.3    62.1    +      -       -      -
     14D  HIS      3.2     1.1    -      -       -      -
     15D  ASP*     3.8     7.8    -      -       -      +
     16D  PHE*     3.1    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 13 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  SER*     3.8     9.6    +      -       -      +
    204B  PHE*     3.7    24.7    -      -       +      -
    233B  LEU*     4.1    14.6    -      -       +      +
    234B  LEU*     3.6    24.9    -      -       +      -
    237B  ASN*     4.1    44.4    -      -       +      +
    238B  ALA*     4.3     1.8    -      -       +      -
     11D  ASN*     2.8    12.4    +      -       -      +
     12D  GLY*     1.3    72.9    -      -       -      +
     14D  HIS*     1.3    66.4    +      -       -      +
     16D  PHE*     3.4     3.6    +      -       -      +
     17D  ILE*     3.0    30.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 14 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11D  ASN*     2.9    31.7    +      -       -      +
     13D  VAL*     1.3    77.4    -      -       -      +
     15D  ASP*     1.3    66.2    +      -       -      +
     17D  ILE*     3.3     7.3    +      -       +      +
     18D  LEU*     3.0    57.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 15 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200B  ALA*     4.3    11.3    -      -       -      +
     11D  ASN      3.5    11.3    +      -       -      +
     12D  GLY*     3.9     7.9    -      -       -      +
     13D  VAL      3.3     0.4    -      -       -      -
     14D  HIS*     1.3    83.3    +      -       -      +
     16D  PHE*     1.3    65.6    +      -       -      +
     17D  ILE      2.9     0.5    +      -       -      -
     18D  LEU*     5.4     1.3    -      -       -      +
     19D  VAL*     2.8    28.4    +      -       -      +
     74D  ILE*     3.9    35.6    -      -       +      +
     77D  TRP*     4.2    22.5    -      -       -      -
     78D  GLN*     4.9     6.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 16 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204B  PHE*     3.3    34.1    -      +       +      -
    230B  LYS*     4.2    21.3    -      -       +      -
    234B  LEU*     4.0    35.7    -      -       +      -
     95C  ASP*     3.8    21.3    -      -       +      -
     96C  PHE*     5.4     4.3    -      +       -      -
     12D  GLY      3.1    16.3    +      -       -      +
     13D  VAL*     3.5     5.4    -      -       -      +
     15D  ASP*     1.3    80.3    -      -       -      +
     17D  ILE*     1.3    64.9    +      -       +      +
     19D  VAL*     5.0     0.4    -      -       -      -
     20D  ARG*     3.2    78.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 17 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234B  LEU*     3.8    19.7    -      -       +      -
    238B  ALA*     3.5    32.5    -      -       +      -
     13D  VAL*     3.0    24.5    +      -       +      +
     14D  HIS*     3.9     5.6    -      -       +      +
     16D  PHE*     1.3    78.0    -      -       +      +
     18D  LEU*     1.3    67.6    +      -       +      +
     20D  ARG*     3.0     5.6    +      -       -      +
     21D  ALA*     2.8    33.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 18 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14D  HIS*     3.0    52.9    +      -       +      +
     15D  ASP*     5.4     1.1    -      -       -      +
     17D  ILE*     1.3    80.5    -      -       +      +
     19D  VAL*     1.3    65.5    +      -       -      +
     21D  ALA*     4.3     7.4    -      -       +      -
     22D  THR*     2.8    32.4    +      -       +      +
     70D  ILE*     4.2    24.2    -      -       +      -
     74D  ILE*     3.7    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 19 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15D  ASP      2.8    15.2    +      -       -      +
     16D  PHE      4.0     0.2    -      -       -      +
     18D  LEU*     1.3    79.1    -      -       -      +
     20D  ARG*     1.3    88.3    +      -       +      +
     22D  THR*     3.1     7.2    +      -       -      -
     23D  ALA*     3.2     7.9    +      -       +      +
     71D  HIS*     3.0    48.5    +      -       +      +
     74D  ILE*     3.3    39.2    -      -       +      +
     75D  GLY*     4.6     3.8    -      -       -      +
     78D  GLN*     5.2     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 20 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91C  HIS*     3.5    25.9    +      -       -      -
     92C  MET*     4.1    29.3    -      -       +      +
     95C  ASP*     2.8    29.3    +      -       -      -
     96C  PHE*     4.9    13.2    -      -       +      -
     16D  PHE*     3.2    65.5    +      -       -      +
     17D  ILE*     3.0     6.4    +      -       -      +
     19D  VAL*     1.3    97.2    -      -       +      +
     21D  ALA*     1.3    64.8    -      -       -      +
     23D  ALA*     3.1     6.5    +      -       +      +
     24D  ILE*     3.0    30.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 21 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17D  ILE*     2.8    22.1    +      -       +      +
     18D  LEU*     3.8    11.4    -      -       +      +
     20D  ARG*     1.3    75.4    -      -       -      +
     22D  THR*     1.3    64.3    +      -       +      +
     24D  ILE*     3.1    22.3    +      -       -      +
     25D  VAL*     3.1    17.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 22 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18D  LEU*     2.8    22.5    +      -       +      +
     19D  VAL*     3.1     6.4    +      -       -      -
     21D  ALA*     1.3    77.1    -      -       +      +
     23D  ALA*     1.3    56.1    +      -       -      +
     25D  VAL*     3.3     8.4    +      -       -      +
     26D  LEU*     2.8    34.4    +      -       -      +
     67D  SER*     3.7    37.5    -      -       -      +
     70D  ILE*     4.1    22.9    -      -       +      -
     71D  HIS*     3.0    21.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 23 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  MET*     4.1    17.9    -      -       -      -
     19D  VAL*     3.2    15.8    +      -       +      +
     20D  ARG*     3.1     7.9    +      -       -      +
     22D  THR*     1.3    82.1    +      -       -      +
     24D  ILE*     1.3    57.2    +      -       -      +
     26D  LEU*     4.0     6.1    -      -       -      +
     27D  THR*     2.8    34.5    +      -       -      +
     71D  HIS*     3.8    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 24 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  MET*     3.8    22.7    -      -       +      -
     96C  PHE*     5.1    10.1    -      -       +      -
     20D  ARG*     3.0    22.2    +      -       +      +
     21D  ALA*     3.1    10.7    +      -       -      +
     23D  ALA*     1.3    74.9    -      -       -      +
     25D  VAL*     1.3    69.3    +      -       +      +
     27D  THR*     3.2     7.0    +      -       -      -
     28D  LEU*     3.0    35.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 25 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  ALA*     3.1    12.5    +      -       +      +
     22D  THR*     3.6     7.6    -      -       -      +
     24D  ILE*     1.3    79.9    -      -       +      +
     26D  LEU*     1.3    59.2    +      -       +      +
     28D  LEU*     2.9    27.9    +      -       +      +
     29D  TYR*     3.0    11.8    +      -       +      +
     60D  PHE*     4.3     8.3    -      -       +      -
     63D  LEU*     4.1    29.4    -      -       +      +
     64D  ALA*     5.1     2.5    -      -       -      -
     67D  SER*     3.3    24.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 26 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22D  THR      2.8    23.4    +      -       -      +
     23D  ALA*     4.0     4.5    -      -       -      +
     25D  VAL*     1.3    70.8    -      -       -      +
     27D  THR*     1.3    57.9    +      -       -      +
     29D  TYR*     3.3     7.3    +      -       +      +
     30D  ILE*     2.9    41.8    +      -       +      +
     64D  ALA*     3.4    43.1    -      -       +      +
     67D  SER*     3.7    16.4    -      -       -      +
     68D  ILE*     3.7    30.5    -      -       +      +
     71D  HIS*     4.5    17.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 27 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85C  VAL*     4.4    16.9    -      -       +      +
     89C  ILE*     4.3    24.5    -      -       +      +
     23D  ALA*     2.8    23.6    +      -       -      +
     24D  ILE*     3.2     7.8    +      -       -      -
     26D  LEU*     1.3    75.5    -      -       -      +
     28D  LEU*     1.3    65.4    +      -       +      +
     30D  ILE*     3.4     9.4    +      -       +      +
     31D  ILE*     3.1    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 28 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  ILE*     3.0    29.3    +      -       +      +
     25D  VAL*     2.9    14.5    +      -       +      +
     27D  THR*     1.3    78.4    -      -       +      +
     29D  TYR*     1.3    63.2    +      -       -      +
     31D  ILE*     3.1    20.2    +      -       +      +
     32D  TYR*     3.0    21.5    +      -       -      +
     60D  PHE*     3.8    15.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 29 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25D  VAL*     3.0     9.4    +      -       +      +
     26D  LEU*     3.6    13.5    -      -       +      +
     28D  LEU*     1.3    76.3    -      -       -      +
     30D  ILE*     1.3    63.3    +      -       +      +
     32D  TYR*     3.3     5.2    +      +       -      +
     33D  MET*     3.0    62.3    +      -       +      +
     52D  PHE*     4.9     1.9    -      -       -      -
     57D  THR      5.0     0.2    -      -       -      -
     60D  PHE*     3.5    44.7    -      +       +      -
     61D  THR*     2.8    52.0    +      -       +      +
     64D  ALA*     3.6    21.3    -      -       +      -
     68D  ILE*     6.2     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 30 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81C  LEU*     4.3    25.8    -      -       +      -
     85C  VAL*     4.0    30.1    -      -       +      -
     26D  LEU*     2.9    29.2    +      -       +      +
     27D  THR*     3.9     6.7    -      -       +      +
     28D  LEU      3.2     0.4    -      -       -      -
     29D  TYR*     1.3    79.9    -      -       +      +
     31D  ILE*     1.3    62.9    +      -       +      +
     33D  MET*     4.1     4.6    -      -       -      +
     34D  VAL*     2.8    44.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 31 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  THR*     3.1    30.9    +      -       +      +
     28D  LEU*     3.1    20.7    +      -       +      +
     30D  ILE*     1.3    77.1    -      -       +      +
     32D  TYR*     1.3    58.5    +      -       -      +
     34D  VAL*     4.0     4.9    -      -       -      +
     35D  GLY*     2.9    26.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 32 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28D  LEU      3.0    11.9    +      -       -      +
     29D  TYR*     3.5    10.8    -      +       -      +
     30D  ILE      3.1     0.2    -      -       -      -
     31D  ILE*     1.3    75.6    -      -       -      +
     33D  MET*     1.3    77.4    +      -       +      +
     35D  GLY*     3.3     3.2    +      -       -      -
     36D  PHE*     3.0    20.8    +      -       -      +
     51D  PHE*     3.3    27.5    -      +       -      -
     54D  SER*     4.9     1.0    +      -       -      -
     56D  PHE*     3.4    36.0    -      +       -      +
     57D  THR*     2.5    35.1    +      -       +      -
     60D  PHE*     3.8    28.9    -      +       +      -
----------------------------------------------------------
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Residues in contact with MET 33 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29D  TYR*     3.0    59.6    +      -       +      +
     30D  ILE*     4.1     4.7    -      -       +      +
     32D  TYR*     1.3    77.6    -      -       +      +
     34D  VAL*     1.3    64.9    +      -       +      +
     36D  PHE*     3.5     3.7    +      -       -      +
     37D  PHE*     3.1    50.6    +      -       +      -
     51D  PHE*     3.8    24.9    -      -       +      -
     52D  PHE*     3.8    28.0    -      -       +      -
     57D  THR*     5.0     0.7    -      -       -      -
     61D  THR*     4.9     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 34 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127C  LEU*     5.8     3.1    -      -       +      +
     30D  ILE*     2.8    37.9    +      -       +      +
     31D  ILE*     4.0     5.4    -      -       -      +
     33D  MET*     1.3    69.6    -      -       +      +
     35D  GLY*     1.3    69.2    +      -       -      +
     36D  PHE      3.2     0.2    +      -       -      -
     37D  PHE*     3.2     7.0    +      -       +      +
     38D  ALA*     2.8    31.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 35 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31D  ILE      2.9    17.1    +      -       -      -
     32D  TYR*     3.3     4.5    +      -       -      -
     34D  VAL*     1.3    79.5    -      -       -      +
     36D  PHE*     1.3    63.3    +      -       -      +
     38D  ALA*     3.1     7.8    +      -       -      -
     39D  THR*     2.9    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 36 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32D  TYR      3.0     9.7    +      -       -      +
     33D  MET      3.7     6.1    -      -       -      +
     34D  VAL      3.2     0.2    -      -       -      -
     35D  GLY*     1.3    73.5    -      -       -      +
     37D  PHE*     1.3    89.4    +      +       -      +
     39D  THR*     2.9    21.7    +      -       -      +
     40D  SER*     3.3    26.1    +      -       -      -
     43D  LEU*     4.2    20.4    -      -       +      -
     47D  VAL*     4.4    13.0    -      -       +      -
     48D  TRP*     3.9    28.7    -      +       -      -
     51D  PHE*     3.4    68.0    -      +       +      -
----------------------------------------------------------
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Residues in contact with PHE 37 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127C  LEU*     4.0    39.4    -      -       +      +
     33D  MET*     3.1    44.3    +      -       +      +
     34D  VAL*     3.8     6.5    -      -       +      +
     36D  PHE*     1.3    89.6    -      +       -      +
     38D  ALA*     1.3    58.0    +      -       -      +
     39D  THR      3.2     1.4    +      -       -      -
     40D  SER*     4.1     9.2    +      -       -      -
     41D  GLY      5.3     1.9    +      -       -      -
     43D  LEU*     4.4    24.9    -      -       +      +
     48D  TRP*     3.5    37.5    -      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 38 (chain D). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127C  LEU*     5.2     6.5    -      -       +      -
     34D  VAL*     2.8    29.3    +      -       +      +
     35D  GLY*     3.1     4.5    +      -       -      +
     36D  PHE      3.0     0.6    +      -       -      -
     37D  PHE*     1.3    73.8    -      -       -      +
     39D  THR*     1.3    69.6    +      -       +      +
     40D  SER      4.0     0.9    -      -       -      -
     41D  GLY      5.6     0.2    -      -       -      -
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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) +   -    +    +   +   +    +    -
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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