Contacts of the helix formed by residues 39 - 67 (chain F) in PDB entry 1QGH


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 PHE 39 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31F  HIS      4.6     0.9    -      -       -      -
     32F  TRP      5.6     0.4    -      -       -      -
     34F  MET*     3.5    42.0    -      -       +      -
     36F  GLY      2.7    17.5    +      -       -      +
     37F  HIS      3.2     1.4    -      -       -      -
     38F  ASN*     1.3    78.3    -      -       -      +
     40F  PHE*     1.3    76.3    +      +       -      +
     43F  HIS*     2.7    65.8    +      +       +      +
     95F  MET*     3.7     8.8    -      -       +      +
    144J  TRP*     4.1    16.2    -      +       -      -
    145J  MET*     3.6    46.7    -      -       +      -
    148J  ALA*     3.8    14.1    -      -       +      -
    149J  PHE*     4.0    13.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 40 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  HIS      4.9     1.5    +      -       -      -
     38F  ASN      3.4     1.0    -      -       -      -
     39F  PHE*     1.3    87.5    -      +       -      +
     41F  THR*     1.3    65.0    +      -       +      +
     43F  HIS*     3.6     3.2    -      +       -      +
     44F  GLU*     3.1    37.4    +      -       -      +
     41J  THR*     3.9    15.9    -      -       +      +
     42J  LEU*     3.8    27.8    -      -       +      -
     45J  LYS*     3.6    36.1    -      -       +      -
    145J  MET*     3.9    30.7    -      -       +      -
    146J  PHE*     3.5    30.1    -      +       -      -
    149J  PHE*     3.7    31.4    -      +       +      -
----------------------------------------------------------
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Residues in contact with THR 41 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37B  HIS      5.6     1.8    -      -       -      +
     40B  PHE*     3.9    22.9    -      -       -      +
     41B  THR*     4.6    21.3    +      -       +      +
     37F  HIS      5.1     1.8    -      -       -      +
     38F  ASN*     3.4    33.0    -      -       +      +
     40F  PHE*     1.3    76.4    -      -       +      +
     42F  LEU*     1.3    60.4    +      -       +      +
     44F  GLU*     3.2    10.4    +      -       -      +
     45F  LYS*     2.9    25.8    +      -       -      +
     38J  ASN*     6.2     0.4    -      -       -      +
     41J  THR*     4.9    17.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 42 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  PHE*     3.7    36.3    -      -       +      -
     34F  MET*     3.7    17.5    -      -       +      -
     38F  ASN*     2.9    32.1    +      -       +      +
     41F  THR*     1.3    77.0    -      -       +      +
     43F  HIS*     1.3    66.6    +      -       -      +
     45F  LYS*     3.7     9.9    -      -       +      +
     46F  MET*     3.0    30.7    +      -       +      +
     95F  MET*     3.7    14.1    -      -       +      -
     99F  MET*     4.2    16.2    -      -       +      -
    146F  PHE*     4.6     3.1    -      -       +      -
    149F  PHE*     3.4    34.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 43 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31F  HIS*     2.9    83.3    +      +       -      -
     34F  MET*     3.4    12.4    -      -       -      -
     39F  PHE*     2.7    47.2    +      +       +      +
     40F  PHE*     3.6     4.7    -      +       -      +
     42F  LEU*     1.3    73.7    -      -       -      +
     44F  GLU*     1.3    71.6    +      -       +      +
     46F  MET      3.5     3.3    +      -       -      -
     47F  ASP*     3.5     3.0    +      -       -      -
    157F   FE      4.0     1.4    -      -       -      -
     62H  GLU*     3.8     7.7    +      -       -      -
    141J  LYS*     5.7     1.0    +      -       -      -
    144J  TRP*     3.8    27.0    -      +       -      -
    145J  MET*     4.8     9.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 44 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40F  PHE*     3.1    32.1    +      -       -      +
     41F  THR*     3.8     5.7    -      -       -      +
     43F  HIS*     1.3    85.1    -      -       +      +
     45F  LYS*     1.3    65.6    +      -       -      +
     47F  ASP*     3.0    20.1    +      -       -      +
     48F  ASP*     3.2    17.7    +      -       -      +
     45J  LYS*     5.5     6.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 45 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  PHE*     3.4    39.6    -      -       +      -
     44B  GLU*     5.3     7.4    -      -       -      +
     41F  THR*     2.9    16.3    +      -       -      +
     42F  LEU*     3.1    13.2    +      -       +      +
     44F  GLU*     1.3    76.8    -      -       -      +
     46F  MET*     1.3    59.9    +      -       +      +
     48F  ASP*     3.0    24.5    +      -       -      +
     49F  LEU*     2.9    30.8    +      -       +      +
    142F  HIS*     4.4     8.6    +      -       -      -
    145F  MET*     3.9    19.4    -      -       -      +
    146F  PHE*     3.8    27.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 46 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27F  ILE*     3.2    20.8    -      -       +      +
     30F  ILE*     4.1    19.7    -      -       +      -
     31F  HIS*     3.7    24.7    -      -       +      +
     34F  MET*     3.7    18.4    -      -       +      -
     42F  LEU*     3.0    21.8    +      -       +      +
     43F  HIS      3.7     2.5    -      -       -      +
     44F  GLU      3.2     0.2    -      -       -      -
     45F  LYS*     1.3    80.0    -      -       +      +
     47F  ASP*     1.3    60.8    +      -       -      +
     49F  LEU*     3.6    19.3    -      -       +      -
     50F  TYR*     2.8    27.5    +      -       -      +
     99F  MET*     4.6     6.3    -      -       +      -
    102F  LEU*     4.0    12.1    -      -       +      -
    146F  PHE*     3.5    37.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 47 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28F  HIS*     4.9     8.3    -      -       -      -
     31F  HIS*     3.1    37.4    +      -       -      -
     43F  HIS*     3.5     6.0    +      -       -      +
     44F  GLU*     3.0    14.2    +      -       -      +
     46F  MET*     1.3    78.6    -      -       -      +
     48F  ASP*     1.3    66.2    +      -       -      +
     50F  TYR*     3.4     6.9    +      -       -      +
     51F  SER*     3.1    27.7    +      -       -      -
    157F   FE      3.8     8.0    -      -       -      -
     58H  ASP*     4.7     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 48 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44F  GLU*     3.7    13.8    -      -       -      +
     45F  LYS*     3.0    28.5    +      -       -      +
     47F  ASP*     1.3    79.2    -      -       -      +
     49F  LEU*     1.3    62.2    +      -       +      +
     51F  SER*     3.3     5.9    +      -       -      -
     52F  GLU*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 49 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23F  PHE*     5.2     0.4    -      -       +      -
     27F  ILE*     4.0    13.9    -      -       +      -
     45F  LYS*     2.9    18.6    +      -       -      +
     46F  MET*     3.6    35.7    -      -       +      +
     48F  ASP*     1.3    74.5    -      -       +      +
     50F  TYR*     1.3    67.1    +      -       -      +
     52F  GLU*     4.4     2.9    -      -       -      +
     53F  PHE*     2.9    48.1    +      -       +      +
    102F  LEU*     3.8    27.1    -      -       +      -
    106F  LEU*     5.6     2.5    -      -       +      -
    142F  HIS*     3.5    35.2    -      -       +      +
    146F  PHE*     4.1    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 50 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24F  THR*     3.5    46.4    +      -       +      +
     25F  VAL*     5.2     0.2    -      -       -      -
     27F  ILE*     3.8    13.0    -      -       +      +
     28F  HIS*     3.0    52.6    +      +       +      +
     46F  MET      2.8    17.4    +      -       -      +
     47F  ASP*     3.5    10.8    -      -       -      +
     48F  ASP      3.2     0.2    -      -       -      -
     49F  LEU*     1.3    78.8    -      -       -      +
     51F  SER*     1.3    69.0    +      -       -      +
     54F  GLY*     3.1    22.3    +      -       -      -
     21H  ASN*     5.4     1.2    +      -       -      -
     24H  THR*     5.8     3.3    -      -       -      +
     50H  TYR*     4.6    17.6    +      +       -      -
     54H  GLY*     5.9     3.5    -      -       -      -
     57H  MET*     4.3     7.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 51 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47F  ASP      3.1    15.1    +      -       -      -
     48F  ASP*     3.8     5.4    -      -       -      -
     49F  LEU      3.2     0.2    -      -       -      -
     50F  TYR*     1.3    86.0    -      -       -      +
     52F  GLU*     1.3    65.6    +      -       -      +
     54F  GLY*     3.4     0.7    +      -       -      -
     55F  GLU*     3.0    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 52 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48F  ASP      2.9    16.9    +      -       -      +
     49F  LEU*     3.2     6.1    +      -       -      +
     51F  SER*     1.3    78.6    -      -       -      +
     53F  PHE*     1.3    77.3    +      -       +      +
     55F  GLU*     2.9    19.3    +      -       -      +
     56F  GLN*     3.0    20.8    +      -       +      +
    138F  SER*     2.5    31.0    +      -       -      -
    142F  HIS*     2.7    28.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 53 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20F  LEU*     4.2    13.9    -      -       +      +
     23F  PHE*     3.8    37.2    -      +       +      -
     24F  THR*     4.8     7.6    -      -       -      +
     27F  ILE*     4.4     5.2    -      -       +      -
     49F  LEU*     2.9    44.1    +      -       +      +
     50F  TYR      4.7     0.7    -      -       -      +
     52F  GLU*     1.3    81.6    -      -       +      +
     54F  GLY*     1.3    56.5    +      -       -      +
     56F  GLN*     3.0    39.1    +      -       -      +
     57F  MET*     2.7    32.5    +      -       -      +
    106F  LEU*     3.8    21.1    -      -       +      -
    109F  LEU*     4.8     3.8    -      -       +      -
    139F  ILE*     3.9    20.0    -      -       +      -
    142F  HIS*     4.0    17.5    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 54 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24F  THR*     4.3     9.1    +      -       -      -
     50F  TYR*     3.1    20.2    +      -       -      -
     51F  SER      3.8     1.3    -      -       -      -
     52F  GLU      3.1     1.0    -      -       -      -
     53F  PHE*     1.3    76.6    -      -       -      +
     55F  GLU*     1.3    63.4    +      -       -      +
     57F  MET*     3.3    14.9    -      -       -      +
     58F  ASP*     3.1    21.3    +      -       -      +
     28H  HIS*     5.3     1.0    +      -       -      -
     50H  TYR*     5.7     4.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 55 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  SER*     3.0    19.0    +      -       -      +
     52F  GLU*     2.9    11.2    +      -       -      +
     54F  GLY*     1.3    77.6    -      -       -      +
     56F  GLN*     1.3    65.9    +      -       -      +
     58F  ASP*     3.1     6.6    +      -       -      +
     59F  GLU*     2.9    38.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 56 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20F  LEU*     4.1     5.9    -      -       +      +
     52F  GLU*     3.0    27.3    +      -       +      +
     53F  PHE*     3.4    42.8    -      -       +      +
     55F  GLU*     1.3    74.6    -      -       -      +
     57F  MET*     1.3    53.3    -      -       -      +
     59F  GLU*     3.2     3.5    +      -       -      +
     60F  VAL*     2.8    40.7    +      -       -      +
    113F  TYR*     2.8    26.9    +      -       -      -
    135F  PHE*     3.4    60.3    +      -       +      +
    138F  SER*     4.8     1.2    -      -       -      -
    139F  ILE*     4.5     0.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 57 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17F  VAL*     4.2     8.5    -      -       -      +
     20F  LEU*     3.5    34.1    -      -       +      -
     21F  ASN*     3.4    38.1    -      -       -      +
     24F  THR*     6.1     3.6    -      -       +      -
     53F  PHE      2.7    17.2    +      -       -      +
     54F  GLY*     3.3    10.5    -      -       -      +
     56F  GLN*     1.3    78.4    -      -       -      +
     58F  ASP*     1.3    64.2    +      -       -      +
     60F  VAL*     3.3     2.5    +      -       -      +
     61F  ALA*     3.0    19.9    +      -       -      +
     28H  HIS*     3.5    35.7    -      -       +      +
     32H  TRP*     3.8    18.6    -      -       +      -
     50H  TYR*     4.4     6.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 58 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54F  GLY      3.1    13.5    +      -       -      +
     55F  GLU*     3.1     7.4    +      -       -      +
     57F  MET*     1.3    80.8    -      -       -      +
     59F  GLU*     1.3    53.7    +      -       +      +
     61F  ALA*     3.2     1.4    +      -       -      +
     62F  GLU*     2.7    49.0    +      -       -      +
     28H  HIS*     3.6    14.9    -      -       +      -
     31H  HIS*     3.6     5.7    -      -       -      -
     32H  TRP*     2.6    34.0    +      -       -      -
     47H  ASP*     4.8     1.2    -      -       -      +
    157K   FE      1.8    33.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 59 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55F  GLU*     2.9    29.7    +      -       +      +
     56F  GLN      3.6     7.1    +      -       -      +
     58F  ASP*     1.3    74.3    -      -       +      +
     60F  VAL*     1.3    64.8    +      -       -      +
     62F  GLU*     3.7     5.6    -      -       -      +
     63F  ARG*     2.8    25.6    +      -       -      +
    131F  MET*     4.0    11.1    -      -       -      +
    135F  PHE*     3.7    28.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 60 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13F  LEU*     3.6    39.1    -      -       +      +
     16F  GLN*     4.3     7.0    -      -       +      -
     17F  VAL*     3.7    15.9    -      -       +      +
     20F  LEU*     4.1    11.4    -      -       +      -
     56F  GLN      2.8    26.4    +      -       -      +
     57F  MET*     3.6     5.6    -      -       -      +
     59F  GLU*     1.3    71.8    -      -       -      +
     61F  ALA*     1.3    66.3    +      -       -      +
     63F  ARG*     3.0     3.5    +      -       -      +
     64F  LEU*     2.9    21.5    +      -       -      +
    113F  TYR*     4.8     1.8    -      -       +      +
    131F  MET*     4.2    13.2    -      -       +      -
    132F  LEU*     5.2     3.1    -      -       +      -
    135F  PHE*     3.4    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 61 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17F  VAL*     3.9    19.3    -      -       +      -
     57F  MET      3.0    13.1    +      -       -      +
     58F  ASP      3.6     0.9    -      -       -      +
     60F  VAL*     1.3    79.4    -      -       -      +
     62F  GLU*     1.3    65.0    +      -       -      +
     64F  LEU*     3.1     7.7    +      -       -      +
     65F  LEU*     3.0    24.4    +      -       -      +
     71F  PRO*     4.1    10.9    -      -       +      +
     32H  TRP*     3.5    39.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 62 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58F  ASP*     2.7    26.1    +      -       -      +
     59F  GLU*     4.2     4.7    -      -       -      +
     61F  ALA*     1.3    80.3    -      -       -      +
     63F  ARG*     1.3    60.7    +      -       -      +
     65F  LEU*     3.3     8.0    -      -       +      +
     66F  ALA*     2.9    22.9    +      -       -      +
     31H  HIS*     3.1    12.5    +      -       -      -
     32H  TRP*     3.9    13.7    -      -       +      -
     43H  HIS*     3.7     6.4    +      -       -      -
    141K  LYS*     2.8    33.5    +      -       +      +
    144K  TRP*     3.8    30.3    -      -       +      -
    157K   FE      2.1    31.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 63 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13F  LEU*     4.2     7.0    -      -       +      -
     59F  GLU      2.8    18.3    +      -       -      +
     60F  VAL      3.0     4.0    +      -       -      +
     62F  GLU*     1.3    75.0    -      -       -      +
     64F  LEU*     1.3    64.9    +      -       -      +
     66F  ALA*     2.9    12.1    +      -       -      +
     67F  ILE*     2.9    45.2    +      -       +      +
    125F  ASP*     2.9    26.7    +      -       -      -
    127F  VAL*     3.3    31.2    -      -       -      +
    128F  THR*     2.8    21.0    +      -       -      +
    131F  MET*     4.0    26.7    -      -       +      -
    136K  LYS*     4.4     5.9    -      -       -      +
    137K  ALA      5.0     0.8    +      -       -      -
    140K  ASP*     2.7    40.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 64 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10F  LYS*     3.8    35.4    -      -       +      +
     13F  LEU*     4.2    12.7    -      -       +      +
     14F  ASN*     3.5    42.2    -      -       +      +
     17F  VAL*     5.1     1.6    -      -       +      -
     60F  VAL      2.9    11.9    +      -       -      +
     61F  ALA*     3.3     8.7    -      -       -      +
     63F  ARG*     1.3    77.5    -      -       -      +
     65F  LEU*     1.3    61.7    +      -       -      +
     67F  ILE*     3.0    16.4    +      -       +      +
     69F  GLY*     2.8    45.2    +      -       -      -
     70F  SER      3.8     3.8    -      -       -      +
     71F  PRO*     3.6    21.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 65 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61F  ALA      3.0    12.0    +      -       -      +
     62F  GLU*     3.3    14.6    -      -       -      +
     64F  LEU*     1.3    81.3    -      -       -      +
     66F  ALA*     1.3    60.8    +      -       -      +
     68F  GLY*     3.0    13.7    +      -       -      -
     69F  GLY      3.7    13.0    +      -       -      +
     71F  PRO*     3.5    25.4    -      -       +      -
     32H  TRP*     3.5    41.3    -      -       +      +
     33H  TYR*     4.6    11.2    -      -       +      -
    144K  TRP*     3.8    34.5    -      -       +      +
    154K  PRO*     3.4    18.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 66 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62F  GLU      2.9    13.9    +      -       -      +
     63F  ARG*     2.9    26.2    +      -       -      +
     65F  LEU*     1.3    78.2    -      -       -      +
     67F  ILE*     1.3    60.1    +      -       -      +
     68F  GLY      3.1     2.8    +      -       -      -
    140K  ASP*     4.0    27.1    -      -       +      +
    141K  LYS*     4.8     3.8    -      -       +      +
    144K  TRP*     4.1    15.7    -      -       +      +
    154K  PRO*     4.1    10.5    -      -       -      +
    155K  LEU*     4.1    10.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 67 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9F  THR*     4.0    16.2    -      -       +      -
     10F  LYS*     3.4    38.0    +      -       +      -
     13F  LEU*     3.8    28.0    -      -       +      -
     63F  ARG*     2.9    49.9    +      -       -      +
     64F  LEU*     3.0    15.3    +      -       +      +
     66F  ALA*     1.3    76.8    -      -       -      +
     68F  GLY*     1.3    57.7    +      -       -      +
    125F  ASP*     4.0     7.9    -      -       -      +
    155K  LEU*     3.5    16.7    -      -       -      +
----------------------------------------------------------
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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