Contacts of the helix formed by residues 38 - 67 (chain I) in PDB entry 2BKC


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 38 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  ASN*     5.0     4.6    -      -       -      +
     37G  HIS*     3.1    51.3    +      -       -      +
     38G  ASN*     5.2     4.6    -      -       -      +
     36I  GLY      2.9     2.0    +      -       -      -
     37I  HIS*     1.3    82.7    +      -       -      +
     39I  PHE*     1.3    64.2    +      -       -      +
     40I  PHE      3.2     3.1    +      -       -      -
     41I  THR*     3.4    15.5    +      -       +      +
     42I  LEU*     2.9    42.2    +      -       +      +
     95I  MET*     3.9    16.2    -      -       +      +
    149I  PHE*     3.9    13.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 39 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144D  TRP*     3.8    31.2    -      +       -      -
    145D  MET*     3.6    44.2    -      -       +      -
    148D  ALA*     3.5    19.5    -      -       +      +
    149D  PHE*     4.2    13.0    -      -       +      +
     31I  HIS*     4.4     7.9    -      +       -      -
     32I  TRP      5.6     0.7    -      -       -      -
     34I  MET*     3.5    40.0    -      -       +      +
     36I  GLY      2.9    16.8    +      -       -      +
     37I  HIS      3.4     1.4    -      -       -      -
     38I  ASN*     1.3    76.9    -      -       -      +
     40I  PHE*     1.3    72.6    +      +       +      +
     43I  GLY*     2.9    28.9    +      -       -      -
     95I  MET*     3.9     9.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 40 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41D  THR*     3.8    15.3    -      -       -      +
     42D  LEU*     3.8    29.6    -      -       +      -
     45D  LYS*     3.8    40.8    -      -       +      -
    145D  MET*     4.0    36.3    -      -       +      -
    146D  PHE*     3.6    28.9    -      +       -      -
    149D  PHE*     3.8    29.4    -      +       +      -
     37I  HIS      5.0     1.3    +      -       -      +
     38I  ASN      3.3     0.8    -      -       -      -
     39I  PHE*     1.3    83.5    -      +       -      +
     41I  THR*     1.3    63.8    +      -       +      +
     43I  GLY*     3.9     0.3    -      -       -      -
     44I  GLU*     3.2    32.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 41 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  ASN*     5.5     0.7    -      -       -      +
     41D  THR*     4.0    20.6    -      -       +      +
     37G  HIS      5.7     0.4    +      -       -      +
     40G  PHE*     3.9    17.4    -      -       -      +
     41G  THR*     3.7    32.5    -      -       +      +
     37I  HIS      5.0     1.1    -      -       -      +
     38I  ASN*     4.0    28.3    -      -       +      +
     40I  PHE*     1.3    79.9    -      -       +      +
     42I  LEU*     1.3    64.3    +      -       -      +
     44I  GLU*     3.6     7.9    +      -       -      +
     45I  LYS*     3.2    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 42 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40G  PHE*     4.6     9.4    -      -       +      -
     34I  MET*     3.8    18.6    -      -       +      -
     38I  ASN*     2.9    40.1    +      -       +      +
     41I  THR*     1.3    81.2    -      -       -      +
     43I  GLY*     1.3    56.3    +      -       -      +
     45I  LYS*     3.2     7.7    +      -       +      +
     46I  MET*     2.8    39.5    +      -       +      +
     95I  MET*     3.8    16.8    -      -       -      -
     99I  MET*     3.4    32.1    -      -       +      -
    146I  PHE*     4.2    14.6    -      -       +      -
    149I  PHE*     3.6    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 43 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31I  HIS*     2.9    42.4    +      -       -      -
     34I  MET*     3.6     8.9    -      -       -      -
     39I  PHE*     2.9    22.3    +      -       -      -
     40I  PHE*     3.9     0.9    -      -       -      -
     42I  LEU*     1.3    77.3    -      -       -      +
     44I  GLU*     1.3    60.4    +      -       -      +
     46I  MET      3.3     1.0    +      -       -      -
     47I  ASP*     3.2    11.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 44 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  LYS*     4.2    21.1    -      -       -      +
     40I  PHE*     3.2    24.0    +      -       -      +
     41I  THR*     4.0     6.4    -      -       -      +
     42I  LEU      3.3     0.2    -      -       -      -
     43I  GLY*     1.3    71.7    -      -       -      +
     45I  LYS*     1.3    66.1    +      -       -      +
     47I  ASP*     3.0    25.0    +      -       -      +
     48I  ASP*     3.1    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 45 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40G  PHE*     3.4    45.7    -      -       +      -
     44G  GLU*     5.6     7.0    -      -       -      +
     41I  THR      3.2    12.7    +      -       -      +
     42I  LEU*     3.2    14.5    +      -       +      +
     44I  GLU*     1.3    78.5    -      -       -      +
     46I  MET*     1.3    67.3    +      -       +      +
     48I  ASP*     3.4    21.5    +      -       -      +
     49I  LEU*     3.1    27.6    +      -       +      +
    142I  HIS*     4.7    15.3    +      -       -      -
    145I  MET*     4.3    16.8    -      -       -      +
    146I  PHE*     4.0    19.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 46 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27I  ILE*     3.3    29.0    -      -       +      +
     30I  ILE*     3.9    20.0    -      -       +      -
     31I  HIS*     3.7    21.1    -      -       +      +
     34I  MET*     3.8    18.2    -      -       +      -
     42I  LEU*     2.8    25.7    +      -       +      +
     44I  GLU      3.2     0.4    -      -       -      -
     45I  LYS*     1.3    73.5    -      -       +      +
     47I  ASP*     1.3    61.5    +      -       -      +
     49I  LEU*     4.4    10.1    -      -       +      -
     50I  TYR*     2.9    30.7    +      -       -      +
     99I  MET*     3.7    22.2    -      -       +      -
    102I  LEU*     4.4     9.2    -      -       +      -
    146I  PHE*     4.0    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 47 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28I  HIS*     5.8     4.2    -      -       -      -
     31I  HIS*     3.5    23.9    +      -       -      -
     43I  GLY      3.2    17.0    +      -       -      +
     44I  GLU*     3.0    18.2    +      -       -      +
     46I  MET*     1.3    77.4    -      -       -      +
     48I  ASP*     1.3    66.3    +      -       -      +
     50I  TYR*     3.4     5.9    +      -       -      +
     51I  SER*     3.1    26.7    +      -       -      -
     58K  ASP*     5.8     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 48 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44I  GLU*     3.1    16.1    +      -       -      +
     45I  LYS*     3.7    26.1    -      -       -      +
     47I  ASP*     1.3    79.5    -      -       -      +
     49I  LEU*     1.3    61.0    +      -       +      +
     51I  SER*     3.5     6.3    +      -       -      -
     52I  GLU*     2.9    30.6    +      -       -      +
    142I  HIS*     6.4     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 49 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23I  PHE*     4.6     3.8    -      -       +      -
     27I  ILE*     3.9    16.6    -      -       +      +
     45I  LYS*     3.1    22.9    +      -       -      +
     46I  MET*     3.9    11.4    -      -       -      +
     47I  ASP      3.3     0.2    -      -       -      -
     48I  ASP*     1.3    76.7    -      -       +      +
     50I  TYR*     1.3    62.4    +      -       -      +
     52I  GLU*     4.5     2.5    -      -       -      -
     53I  PHE*     2.8    52.9    +      -       +      +
    102I  LEU*     3.8    40.4    -      -       +      -
    106I  LEU*     5.3     2.7    -      -       +      -
    142I  HIS*     3.1    37.0    -      -       +      +
    146I  PHE*     4.1    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 50 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24I  THR*     3.3    47.3    +      -       +      +
     27I  ILE*     3.9    13.1    -      -       +      +
     28I  HIS*     3.2    51.4    +      +       +      +
     46I  MET      2.9    19.3    +      -       -      +
     47I  ASP*     3.4     7.9    -      -       -      +
     49I  LEU*     1.3    78.1    -      -       -      +
     51I  SER*     1.3    68.8    +      -       -      +
     53I  PHE*     4.2     0.2    -      -       -      -
     54I  GLY*     3.1    21.1    +      -       -      -
     21K  ASN*     5.5     0.5    +      -       -      -
     24K  THR*     5.8     3.1    -      -       -      +
     50K  TYR*     4.8    13.1    +      +       -      -
     54K  GLY*     6.1     0.5    -      -       -      -
     57K  MET*     4.7     8.0    -      -       -      +
     58K  ASP*     5.5     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 51 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47I  ASP      3.1    12.6    +      -       -      -
     48I  ASP*     3.9     7.6    -      -       -      -
     49I  LEU      3.4     0.2    -      -       -      -
     50I  TYR*     1.3    84.3    -      -       -      +
     52I  GLU*     1.3    58.9    +      -       -      +
     54I  GLY*     3.3     2.1    +      -       -      -
     55I  GLU*     2.9    30.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 52 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48I  ASP      2.9    19.0    +      -       -      +
     49I  LEU*     4.0     2.8    -      -       -      +
     51I  SER*     1.3    78.0    -      -       -      +
     53I  PHE*     1.3    68.9    +      -       +      +
     55I  GLU*     3.3    19.5    +      -       -      +
     56I  GLN*     3.2    29.8    +      -       -      +
    138I  SER*     2.5    32.6    +      -       -      -
    142I  HIS*     2.9    29.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 53 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20I  LEU*     4.1    14.5    -      -       +      +
     23I  PHE*     3.6    37.0    -      +       +      -
     24I  THR*     4.2    11.7    -      -       -      +
     27I  ILE*     4.4     2.5    -      -       +      -
     49I  LEU*     2.8    53.1    +      -       +      +
     52I  GLU*     1.3    88.9    -      -       +      +
     54I  GLY*     1.3    61.2    +      -       -      +
     56I  GLN*     3.5    35.9    +      -       -      +
     57I  MET*     3.0    27.7    +      -       -      +
    106I  LEU*     3.9    21.8    -      -       +      -
    109I  LEU*     4.6     4.7    -      -       +      -
    138I  SER*     5.1     2.9    -      -       -      -
    139I  ILE*     4.2    20.4    -      -       +      -
    142I  HIS*     4.8     4.9    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 54 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24I  THR*     4.0     9.5    +      -       -      -
     50I  TYR*     3.1    17.0    +      -       -      -
     51I  SER*     3.7     3.6    -      -       -      -
     53I  PHE*     1.3    77.0    -      -       -      +
     55I  GLU*     1.3    60.4    +      -       -      +
     57I  MET*     3.3    14.4    +      -       -      +
     58I  ASP*     3.1    26.3    +      -       -      +
     50K  TYR*     5.8     3.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 55 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51I  SER      2.9    18.7    +      -       -      +
     52I  GLU*     3.3    26.3    -      -       -      +
     53I  PHE      3.3     0.2    -      -       -      -
     54I  GLY*     1.3    74.7    -      -       -      +
     56I  GLN*     1.3    69.9    +      -       -      +
     58I  ASP*     3.2     9.2    +      -       -      +
     59I  GLU*     2.3    69.1    +      -       -      +
    135I  PHE*     4.0     7.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 56 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20I  LEU*     3.9     4.6    -      -       +      +
     52I  GLU*     3.2    21.5    +      -       -      +
     53I  PHE*     3.6    44.6    -      -       -      +
     55I  GLU*     1.3    87.0    +      -       -      +
     57I  MET*     1.3    57.2    +      -       -      +
     59I  GLU*     3.3     1.2    +      -       -      +
     60I  VAL*     2.9    34.9    +      -       -      +
    113I  TYR*     2.8    27.2    +      -       -      +
    135I  PHE*     3.3    62.9    +      -       +      +
    138I  SER*     5.0     1.6    +      -       -      -
    139I  ILE*     4.5     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 57 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17I  VAL*     4.3     9.6    -      -       -      +
     20I  LEU*     3.7    31.6    -      -       +      +
     21I  ASN*     3.5    38.8    -      -       -      +
     24I  THR*     5.9     3.4    -      -       +      +
     53I  PHE      3.0    14.8    +      -       -      +
     54I  GLY*     3.4    17.3    -      -       -      +
     55I  GLU      3.2     0.4    -      -       -      -
     56I  GLN*     1.3    77.9    -      -       -      +
     58I  ASP*     1.3    58.0    +      -       -      +
     60I  VAL*     3.2     3.6    +      -       -      +
     61I  ALA*     2.9    26.0    +      -       -      +
     28K  HIS*     3.7    29.6    -      -       +      +
     32K  TRP*     3.7    21.1    -      -       +      -
     50K  TYR*     4.6     6.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 58 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54I  GLY      3.1    11.3    +      -       -      +
     55I  GLU*     3.4    10.7    -      -       -      +
     57I  MET*     1.3    79.9    -      -       -      +
     59I  GLU*     1.3    59.4    +      -       +      +
     61I  ALA*     3.2     5.5    +      -       -      +
     62I  GLU*     2.9    51.4    +      -       -      +
     28K  HIS*     3.3    33.4    +      -       -      -
     31K  HIS*     4.8     5.5    +      -       -      -
     32K  TRP*     3.5    20.1    +      -       -      -
     50K  TYR*     5.5     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 59 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  LYS*     4.3    17.9    +      -       -      +
     55I  GLU*     2.3    50.9    +      -       -      +
     56I  GLN      3.9     3.4    -      -       -      +
     58I  ASP*     1.3    74.7    -      -       -      +
     60I  VAL*     1.3    60.4    +      -       -      +
     62I  GLU*     4.0     6.1    -      -       -      +
     63I  ARG*     3.0    30.1    +      -       -      +
    131I  MET*     3.6    10.2    -      -       +      +
    135I  PHE*     3.9    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 60 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13I  LEU*     3.2    45.0    -      -       +      +
     16I  GLN*     4.4     6.3    -      -       +      -
     17I  VAL*     3.7    12.3    -      -       +      +
     20I  LEU*     4.2    13.7    -      -       +      -
     56I  GLN      2.9    21.6    +      -       -      +
     57I  MET*     3.6     5.8    -      -       -      +
     59I  GLU*     1.3    73.4    -      -       -      +
     61I  ALA*     1.3    65.1    +      -       -      +
     63I  ARG*     3.3     2.3    +      -       -      +
     64I  LEU*     3.0    22.7    +      -       -      +
    113I  TYR*     5.0     2.0    -      -       +      +
    131I  MET*     4.2    13.0    -      -       +      -
    132I  LEU*     5.3     2.9    -      -       +      -
    135I  PHE*     3.7    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 61 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17I  VAL*     4.2    12.3    -      -       +      +
     57I  MET      2.9    13.8    +      -       -      +
     58I  ASP      3.2     3.6    +      -       -      +
     60I  VAL*     1.3    76.4    -      -       -      +
     62I  GLU*     1.3    57.1    +      -       -      +
     64I  LEU*     3.5     6.2    +      -       -      +
     65I  LEU*     3.0    33.2    +      -       -      +
     71I  PRO*     4.3     5.9    -      -       +      +
     32K  TRP*     3.4    49.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 62 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  LYS*     2.5    48.0    +      -       -      +
    144A  TRP*     3.9    31.0    -      -       +      -
     58I  ASP*     2.9    39.6    +      -       -      +
     59I  GLU*     4.0     3.3    -      -       -      +
     61I  ALA*     1.3    74.1    -      -       -      +
     63I  ARG*     1.3    59.4    +      -       -      +
     65I  LEU*     3.3    10.2    +      -       +      +
     66I  ALA*     2.8    29.5    +      -       -      +
     31K  HIS*     4.8     9.4    +      -       -      -
     32K  TRP*     5.1     5.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 63 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  LYS*     4.2     5.3    -      -       -      +
    137A  ALA      4.9     1.8    +      -       -      -
    140A  ASP*     3.0    42.0    +      -       -      +
    141A  LYS*     5.4     1.7    -      -       -      +
     13I  LEU*     4.4     3.1    -      -       +      -
     59I  GLU      3.0    18.7    +      -       -      +
     60I  VAL      3.8     3.4    -      -       -      +
     62I  GLU*     1.3    74.7    -      -       -      +
     64I  LEU*     1.3    65.5    +      -       -      +
     66I  ALA*     3.2    14.6    +      -       -      +
     67I  ILE*     3.1    45.3    +      -       +      +
    125I  ASP*     3.2    23.0    +      -       -      -
    127I  VAL*     3.4    31.9    -      -       -      +
    128I  THR*     3.0    24.4    +      -       +      +
    131I  MET*     3.8    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 64 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10I  LYS*     3.6    41.1    -      -       +      +
     13I  LEU*     4.1    13.3    -      -       +      +
     14I  ASN*     3.4    46.4    -      -       +      +
     17I  VAL*     4.8     3.1    -      -       +      -
     60I  VAL      3.0    16.8    +      -       -      +
     61I  ALA      3.6     4.9    -      -       -      +
     63I  ARG*     1.3    74.6    -      -       -      +
     65I  LEU*     1.3    61.1    +      -       -      +
     67I  ILE*     3.3    12.4    +      -       +      +
     69I  GLY*     2.8    40.3    +      -       -      -
     70I  SER      4.2     3.1    -      -       -      +
     71I  PRO*     3.7    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 65 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  TRP*     4.0    31.6    -      -       +      +
    154A  PRO*     3.0    25.9    -      -       +      +
     61I  ALA      3.0    25.5    +      -       -      +
     62I  GLU*     3.4     9.4    -      -       -      +
     63I  ARG      3.1     0.2    -      -       -      -
     64I  LEU*     1.3    77.1    -      -       -      +
     66I  ALA*     1.3    58.4    +      -       -      +
     68I  GLY*     3.2     7.6    +      -       -      -
     69I  GLY      3.6    12.5    +      -       -      +
     70I  SER*     4.8     0.4    -      -       -      -
     71I  PRO*     3.5    26.0    -      -       +      -
     32K  TRP*     3.8    47.3    -      -       +      +
     33K  TYR*     4.9     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 66 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  ASP*     4.0    26.7    -      -       -      +
    141A  LYS*     4.6     6.1    -      -       +      +
    144A  TRP*     4.0    16.1    -      -       +      +
    154A  PRO*     3.8    12.5    -      -       -      +
    155A  LEU*     4.6     6.9    -      -       -      +
     62I  GLU      2.8    18.0    +      -       -      +
     63I  ARG*     3.2    26.7    +      -       -      +
     65I  LEU*     1.3    75.7    -      -       -      +
     67I  ILE*     1.3    59.4    +      -       -      +
     68I  GLY      3.4     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 67 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  ASP*     6.0     0.7    -      -       -      -
    155A  LEU*     3.7    18.5    -      -       -      +
      9I  THR*     3.9    28.7    -      -       +      -
     10I  LYS*     3.6    33.7    -      -       +      -
     13I  LEU*     4.2    13.0    -      -       +      -
     63I  ARG*     3.1    48.7    +      -       -      +
     64I  LEU*     3.4    14.6    -      -       -      +
     65I  LEU      3.2     0.2    -      -       -      -
     66I  ALA*     1.3    76.2    -      -       -      +
     68I  GLY*     1.3    57.5    +      -       -      +
    125I  ASP*     4.2     7.2    -      -       -      +
    128I  THR*     4.8     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) +   -    +    +   +   +    +    -
------------------------------------------------------------
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