Contacts of the helix formed by residues 49 - 76 (chain D) in PDB entry 1HQ3


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 LEU 49 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120C  MET*     6.5     0.9    -      -       +      -
    121C  PRO*     3.6    24.1    -      -       +      +
     47D  SER*     3.0    13.3    -      -       -      +
     48D  GLY*     1.3    77.4    -      -       -      +
     50D  ILE*     1.3    64.5    +      -       -      +
     51D  TYR      3.2     2.2    +      -       -      -
     52D  GLU*     3.7     6.7    +      -       -      +
     53D  GLU*     3.6    18.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 50 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  PHE*     3.5    27.1    -      -       +      -
    119C  ILE*     3.2    39.3    -      -       +      +
    120C  MET*     3.8    15.3    -      -       -      +
    121C  PRO*     4.1     1.3    -      -       +      -
    124C  ILE*     4.2    10.5    -      -       +      -
     34D  ILE*     4.1    10.5    -      -       +      -
     46D  ILE*     3.2    27.1    -      -       +      -
     47D  SER*     3.1    11.4    +      -       -      +
     49D  LEU*     1.3    77.2    -      -       -      +
     51D  TYR*     1.3    53.8    -      -       +      +
     53D  GLU*     3.5     7.7    -      -       -      +
     54D  THR*     2.7    66.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 51 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31D  LYS*     3.5    59.4    -      -       +      +
     34D  ILE*     3.6    32.1    -      -       +      +
     35D  ARG*     4.2    14.2    -      -       -      +
     46D  ILE*     3.5    34.1    +      -       +      +
     47D  SER      3.9    13.9    -      -       -      -
     48D  GLY*     3.2    28.0    -      -       -      +
     49D  LEU      3.2     1.8    +      -       -      -
     50D  ILE*     1.3    78.4    -      -       -      +
     52D  GLU*     1.3    59.0    +      -       -      +
     54D  THR*     3.4     3.3    +      -       -      -
     55D  ARG*     3.0    46.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 52 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26D  ILE*     5.7     1.4    -      -       -      +
     27D  GLN*     3.3    23.2    +      -       -      +
     48D  GLY      4.9     1.0    +      -       -      +
     49D  LEU*     3.7     6.9    +      -       -      +
     50D  ILE      3.4     0.2    -      -       -      -
     51D  TYR*     1.3    75.4    -      -       -      +
     53D  GLU*     1.3    67.7    -      -       -      +
     55D  ARG*     3.0    30.4    +      -       -      +
     56D  GLY*     3.0    19.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 53 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121C  PRO*     3.7    31.9    -      -       +      +
    124C  ILE*     4.1    22.0    -      -       +      -
    125C  GLN*     3.7    18.4    -      -       +      +
     49D  LEU      3.6    11.5    +      -       -      +
     50D  ILE*     3.5    13.2    -      -       -      +
     52D  GLU*     1.3    77.4    -      -       -      +
     54D  THR*     1.3    62.6    +      -       -      +
     56D  GLY*     3.0    12.2    +      -       -      -
     57D  VAL*     3.1    21.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 54 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  LEU*     4.2    24.2    -      -       +      -
    104C  PHE*     3.5    15.8    -      -       +      -
    124C  ILE*     4.0     7.1    -      -       -      +
     34D  ILE*     4.0    26.5    -      -       +      -
     37D  LEU*     6.3     0.2    -      -       +      -
     50D  ILE*     2.7    45.7    +      -       -      +
     51D  TYR      3.5     5.2    -      -       -      -
     53D  GLU*     1.3    74.0    -      -       -      +
     55D  ARG*     1.3    63.8    +      -       -      +
     57D  VAL*     3.4     8.1    +      -       +      +
     58D  LEU*     3.0    23.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 55 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26D  ILE*     3.6    34.6    -      -       +      +
     27D  GLN*     3.5    32.1    +      -       -      +
     29D  ILE*     2.7    32.0    +      -       +      +
     30D  THR*     3.8     1.6    -      -       -      +
     31D  LYS*     3.6    25.5    -      -       -      +
     34D  ILE*     4.0    14.8    -      -       +      +
     51D  TYR*     3.0    30.7    +      -       -      +
     52D  GLU*     3.0    36.2    +      -       -      +
     54D  THR*     1.3    75.7    -      -       -      +
     56D  GLY*     1.3    63.1    +      -       -      +
     58D  LEU*     4.5     3.1    -      -       -      -
     59D  LYS*     3.0    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 56 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52D  GLU*     3.0    13.7    +      -       -      -
     53D  GLU*     3.0     5.1    +      -       -      -
     55D  ARG*     1.3    77.1    -      -       -      +
     57D  VAL*     1.3    61.8    +      -       -      +
     59D  LYS*     3.2     8.4    +      -       -      +
     60D  VAL*     3.1    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 57 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  TYR*     4.4     7.3    +      -       +      +
    100C  LEU*     4.0    13.7    -      -       +      -
    103C  LEU*     3.9    22.4    -      -       +      -
    124C  ILE*     4.3    13.5    -      -       +      -
    128C  ARG*     3.8    41.1    +      -       -      +
     53D  GLU*     3.1    17.9    +      -       +      +
     54D  THR*     3.7    11.0    -      -       +      +
     56D  GLY*     1.3    75.1    -      -       -      +
     58D  LEU*     1.3    66.3    +      -       -      +
     60D  VAL*     3.3     9.0    +      -       -      +
     61D  PHE*     3.0    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 58 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  ILE*     4.8     5.8    -      -       +      -
     67C  PHE*     5.0     1.6    -      -       +      -
     70C  LEU*     4.3     6.3    -      -       +      -
     96C  SER*     4.0    19.5    -      -       -      +
     99C  TYR*     5.3     0.4    -      -       +      -
    100C  LEU*     3.9    33.0    -      -       +      -
     26D  ILE*     4.0     8.5    -      -       +      -
     29D  ILE*     3.9    37.9    -      -       +      -
     54D  THR*     3.0    18.1    +      -       +      +
     55D  ARG*     3.8     4.3    -      -       -      +
     57D  VAL*     1.3    81.0    -      -       -      +
     59D  LYS*     1.3    58.5    +      -       -      +
     61D  PHE*     3.2     9.1    +      -       +      +
     62D  LEU*     2.9    46.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 59 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  LEU*     5.2     0.6    -      -       -      +
     73C  GLU*     4.0    19.2    +      -       -      -
     74C  ILE*     4.5    17.7    -      -       +      +
     23D  ARG      5.8     0.6    +      -       -      -
     26D  ILE*     4.1    32.3    -      -       +      +
     55D  ARG      3.0    18.1    +      -       -      +
     56D  GLY*     3.6     7.0    -      -       -      +
     58D  LEU*     1.3    78.1    -      -       -      +
     60D  VAL*     1.3    58.5    +      -       +      +
     62D  LEU*     3.8     4.9    -      -       -      +
     63D  GLU*     2.9    58.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 60 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  ARG*     4.3    18.4    -      -       -      +
     56D  GLY      3.1    15.4    +      -       -      +
     57D  VAL*     3.6     9.9    -      -       -      +
     58D  LEU      3.2     0.2    -      -       -      -
     59D  LYS*     1.3    73.2    -      -       +      +
     61D  PHE*     1.3    66.8    +      -       -      +
     63D  GLU*     3.2    13.8    +      -       -      +
     64D  ASN*     3.0    41.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 61 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  LEU*     5.1     2.0    -      -       +      -
     95C  ALA*     4.1     6.5    -      -       +      -
     96C  SER*     3.7    37.2    -      -       -      -
     99C  TYR*     3.7    49.4    -      +       +      +
     57D  VAL      3.0    14.7    +      -       -      +
     58D  LEU*     3.5     9.9    -      -       +      +
     60D  VAL*     1.3    80.2    -      -       -      +
     62D  LEU*     1.3    69.3    +      -       +      +
     64D  ASN*     3.3     5.8    +      -       +      +
     65D  VAL*     3.1    48.6    +      -       +      +
     90D  LEU*     4.3     6.5    -      -       +      -
     93D  GLN*     5.3     5.2    -      -       +      -
     95D  ARG*     3.8    33.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 62 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  PHE*     3.9    19.5    -      -       +      -
     70C  LEU*     3.5    36.1    -      -       +      -
     71C  VAL*     4.5     3.4    -      -       +      -
     74C  ILE*     3.8    15.9    -      -       +      -
     92C  LEU*     4.1    15.7    -      -       +      -
     96C  SER*     3.4    23.1    -      -       -      +
     58D  LEU*     2.9    33.3    +      -       +      +
     59D  LYS*     5.2     0.2    -      -       -      -
     61D  PHE*     1.3    79.8    -      -       +      +
     63D  GLU*     1.3    57.8    +      -       -      +
     65D  VAL*     4.5     1.8    -      -       -      +
     66D  ILE*     2.8    51.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 63 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  ILE*     4.0    27.2    -      -       +      +
     78C  PHE*     3.7    11.9    -      -       +      -
     59D  LYS*     2.9    54.4    +      -       -      +
     60D  VAL*     3.6    16.2    -      -       -      +
     62D  LEU*     1.3    76.0    -      -       -      +
     64D  ASN*     1.3    61.3    +      -       -      +
     67D  ARG*     3.0    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 64 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  LYS*     5.1    11.4    +      -       -      +
     60D  VAL*     3.0    38.4    +      -       -      +
     61D  PHE*     3.7     6.9    -      -       +      +
     63D  GLU*     1.3    80.6    -      -       -      +
     65D  VAL*     1.3    62.4    +      -       +      +
     67D  ARG*     3.7     8.8    +      -       -      +
     68D  ASP*     3.3    27.5    +      -       -      +
     93D  GLN*     3.6    25.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 65 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  LEU*     3.9    23.1    -      -       +      -
     61D  PHE*     3.1    34.1    +      -       +      +
     62D  LEU*     4.1     2.7    -      -       -      +
     64D  ASN*     1.3    76.6    -      -       -      +
     66D  ILE*     1.3    60.6    +      -       -      +
     68D  ASP      3.3     1.4    +      -       -      -
     69D  ALA*     2.9    25.2    +      -       +      +
     86D  VAL*     4.5     2.9    -      -       +      +
     89D  ALA*     3.5    15.8    -      -       +      +
     90D  LEU*     3.7    39.3    -      -       +      +
     93D  GLN*     4.1    21.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 66 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  VAL*     4.2    22.9    -      -       +      -
     74C  ILE*     3.9    23.3    -      -       +      -
     75C  ALA*     3.9    26.0    -      -       +      +
     78C  PHE*     4.2     4.7    -      -       +      -
     84C  PHE*     4.1     6.5    -      -       +      -
     92C  LEU*     4.0    22.2    -      -       +      -
     62D  LEU*     2.8    45.2    +      -       +      +
     65D  VAL*     1.3    70.7    -      -       -      +
     67D  ARG*     1.3    67.0    +      -       -      +
     69D  ALA*     3.7     5.6    -      -       +      -
     70D  VAL*     2.9    45.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 67 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99B  ARG      5.8     3.7    +      -       -      -
    102B  LEU      5.9     1.5    +      -       -      -
    103B  PRO*     5.9     0.4    -      -       -      +
    104B  GLY*     4.5    28.9    +      -       -      +
    107B  ALA*     5.9     3.2    -      -       -      +
    108B  LYS*     5.6     7.7    -      -       -      +
     78C  PHE*     3.5    36.5    -      -       +      -
     63D  GLU      3.0    20.9    +      -       -      +
     64D  ASN*     3.7     9.5    +      -       -      +
     66D  ILE*     1.3    78.3    -      -       -      +
     68D  ASP*     1.3    67.1    +      -       -      +
     70D  VAL*     3.5     4.3    -      -       +      +
     71D  THR*     2.9    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 68 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99B  ARG      5.3     0.3    -      -       -      +
    100B  LEU*     3.5    34.8    -      -       +      +
     64D  ASN      3.3     8.5    +      -       -      +
     65D  VAL      3.3     3.8    +      -       -      +
     66D  ILE      3.2     0.2    -      -       -      -
     67D  ARG*     1.3    84.0    -      -       -      +
     69D  ALA*     1.3    66.5    +      -       -      +
     71D  THR*     3.1     4.4    +      -       -      -
     72D  TYR*     3.1    27.1    +      -       +      -
     89D  ALA*     3.8    20.0    -      -       +      +
     92D  ARG*     4.0    18.3    +      -       +      +
     93D  GLN*     3.3    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 69 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84C  PHE*     5.6     0.9    -      -       +      -
     92C  LEU*     6.0     0.2    -      -       +      -
     65D  VAL*     2.9    17.8    +      -       +      +
     66D  ILE*     3.2     9.2    +      -       +      +
     68D  ASP*     1.3    75.9    -      -       -      +
     70D  VAL*     1.3    63.0    +      -       +      +
     72D  TYR*     3.1     7.0    +      -       -      +
     73D  THR*     3.1    23.1    +      -       -      -
     81D  VAL*     4.2     9.2    -      -       +      -
     85D  ASP*     3.8    15.5    -      -       -      +
     86D  VAL*     4.1    20.6    -      -       +      -
     89D  ALA*     3.3    15.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 70 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  ALA*     4.7     5.8    -      -       +      -
     78C  PHE*     4.2    24.7    -      -       +      -
     82C  LEU*     4.1    27.1    -      -       +      -
     84C  PHE*     4.8     0.9    -      -       +      -
     66D  ILE*     2.9    29.6    +      -       +      +
     67D  ARG*     3.5    11.2    -      -       +      +
     69D  ALA*     1.3    74.0    -      -       +      +
     71D  THR*     1.3    67.2    +      -       -      +
     73D  THR*     3.6     8.2    -      -       -      -
     74D  GLU*     2.8    46.4    +      -       +      +
     81D  VAL*     4.4    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 71 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96B  THR*     3.6    26.7    -      -       +      +
     99B  ARG*     4.6    19.7    -      -       +      +
    100B  LEU*     3.8    20.7    -      -       +      +
     67D  ARG*     2.9    21.3    +      -       -      +
     68D  ASP*     3.4    10.8    +      -       -      -
     70D  VAL*     1.3    80.9    -      -       -      +
     72D  TYR*     1.3    61.9    +      -       -      +
     74D  GLU*     3.6    10.1    +      -       -      +
     75D  HIS*     3.0    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 72 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76B  GLU*     2.9    28.5    +      -       -      -
     80B  LEU*     3.7    24.9    -      -       +      -
     83B  TYR*     4.3    16.4    -      +       +      -
     84B  ASN*     5.5     0.5    -      -       -      +
    100B  LEU*     3.6    19.5    -      -       +      -
     68D  ASP      3.1    27.7    +      -       -      -
     69D  ALA      3.4     6.3    -      -       -      +
     71D  THR*     1.3    77.9    -      -       -      +
     73D  THR*     1.3    63.2    +      -       -      +
     75D  HIS*     3.5     6.5    +      -       -      +
     76D  ALA*     3.2    22.9    +      -       -      +
     78D  ARG*     4.2     1.7    +      -       -      -
     85D  ASP*     3.9    27.4    -      -       -      +
     88D  TYR*     3.8    35.3    +      +       +      -
     89D  ALA*     3.8    12.3    -      -       -      -
     92D  ARG*     3.3    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 73 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  LEU*     4.3     6.1    -      -       +      -
     69D  ALA      3.1    11.4    +      -       -      -
     70D  VAL*     3.1    11.6    +      -       -      -
     72D  TYR*     1.3    76.1    -      -       -      +
     74D  GLU*     1.3    61.6    +      -       -      +
     76D  ALA*     3.2     5.0    +      -       -      +
     77D  LYS      3.2     3.5    +      -       -      -
     78D  ARG*     3.0    52.5    +      -       +      +
     79D  LYS      4.1     3.1    -      -       -      +
     80D  THR      3.8    23.1    -      -       -      +
     81D  VAL*     3.5    16.5    -      -       +      +
     85D  ASP*     2.7    23.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 74 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92B  ARG*     3.1    11.5    +      -       -      -
     99B  ARG*     6.1     0.5    -      -       -      -
     78C  PHE      5.0     1.7    -      -       -      +
     79C  LYS*     3.5    41.9    -      -       +      +
     82C  LEU*     5.5     3.4    -      -       +      -
     70D  VAL*     2.8    32.4    +      -       +      +
     71D  THR*     4.0    10.8    +      -       -      +
     73D  THR*     1.3    70.1    -      -       +      +
     75D  HIS*     1.3    59.4    +      -       -      +
     77D  LYS*     2.7    24.5    +      -       -      +
     78D  ARG      4.4     7.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 75 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80B  LEU*     3.9    14.5    -      -       +      +
     81B  ALA*     6.0     0.2    -      -       -      -
     84B  ASN*     3.7    26.4    +      -       +      -
     86B  ARG*     6.5     0.2    -      -       +      -
     92B  ARG*     2.9    54.1    +      -       +      +
     93B  GLU*     3.4    38.2    +      -       +      +
     96B  THR*     2.7    42.0    -      -       +      +
     71D  THR      3.0    19.0    +      -       -      +
     72D  TYR*     3.6     6.5    +      -       -      +
     74D  GLU*     1.3    76.3    -      -       -      +
     76D  ALA*     1.3    58.7    +      -       -      +
     77D  LYS*     3.2     2.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 76 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83B  TYR*     5.9     0.2    -      -       +      -
     84B  ASN*     3.1    31.8    +      -       -      +
     72D  TYR      3.2     8.3    +      -       -      +
     73D  THR      3.6     2.5    -      -       -      +
     74D  GLU      3.1     0.4    -      -       -      -
     75D  HIS*     1.3    77.2    +      -       -      +
     77D  LYS*     1.3    71.5    +      -       -      +
     78D  ARG*     3.3    40.4    +      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il