Contacts of the helix formed by residues 42 - 71 (chain A) in PDB entry 3A9Q


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 VAL 42 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ARG*     3.5     2.8    +      -       -      +
     40A  LYS*     4.3     4.0    +      -       -      -
     41A  TYR*     1.3    80.0    -      -       -      +
     43A  ASP*     1.3    65.2    +      -       -      +
     44A  GLU*     3.9     5.8    -      -       +      +
     45A  SER*     3.0    34.9    +      -       -      +
     46A  GLU*     3.0    10.4    +      -       -      +
    157A  ASN*     3.7    34.8    -      -       +      +
    159A  ASP*     5.0     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ARG*     3.0    25.2    +      -       -      +
     42A  VAL*     1.3    73.5    -      -       -      +
     44A  GLU*     1.3    57.5    +      -       -      +
     46A  GLU*     3.3    13.5    +      -       -      +
     47A  SER*     2.8    35.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  VAL*     3.2     5.9    -      -       +      +
     43A  ASP*     1.3    78.6    -      -       -      +
     45A  SER*     1.3    58.0    +      -       -      +
     47A  SER*     3.7     6.7    -      -       -      -
     48A  ALA*     2.9    27.8    +      -       +      +
    153A  VAL*     3.7    17.9    -      -       +      +
    156A  LYS*     2.8    38.0    +      -       -      -
    157A  ASN*     3.0    25.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  TYR*     4.0    16.8    -      -       -      -
     42A  VAL*     3.0    25.1    +      -       -      +
     44A  GLU*     1.3    75.8    -      -       -      +
     46A  GLU*     1.3    65.9    +      -       -      +
     48A  ALA*     3.2     3.1    +      -       -      +
     49A  VAL*     2.9    27.5    +      -       -      +
    153A  VAL*     4.1    11.8    +      -       -      +
    157A  ASN*     3.6    14.7    +      -       -      +
    159A  ASP*     4.3     7.8    +      -       -      +
    162A  LEU*     3.9    22.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ARG*     3.7    23.2    +      -       -      +
     41A  TYR*     3.7    20.0    -      -       +      -
     42A  VAL      3.0    11.6    +      -       -      +
     43A  ASP*     3.5    17.9    -      -       -      +
     45A  SER*     1.3    76.8    -      -       -      +
     47A  SER*     1.3    64.2    +      -       -      +
     49A  VAL      3.3     0.5    +      -       -      -
     50A  ASN*     3.1    16.6    +      -       -      +
    102A  GLN*     3.0    35.5    -      -       -      +
    107A  GLY*     3.3     7.5    -      -       -      -
    108A  LYS*     2.7    34.8    +      -       -      +
    110A  LYS*     5.7     2.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  ASP*     2.8    25.1    +      -       -      +
     44A  GLU*     3.7     7.4    -      -       -      -
     46A  GLU*     1.3    74.6    +      -       -      +
     48A  ALA*     1.3    58.5    +      -       -      +
     50A  ASN*     3.1    11.6    +      -       -      +
     51A  GLU*     2.9    27.9    +      -       -      +
    112A  GLN*     5.3     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  GLU*     2.9    18.5    +      -       +      +
     45A  SER      3.6     3.4    -      -       -      +
     47A  SER*     1.3    77.1    -      -       -      +
     49A  VAL*     1.3    63.1    +      -       -      +
     51A  GLU*     3.3     9.4    +      -       -      +
     52A  GLN*     3.0    23.6    +      -       -      +
    150A  LEU*     3.5    26.3    -      -       +      +
    153A  VAL*     4.0    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  TYR*     3.4    20.4    -      -       -      +
     45A  SER      2.9    15.0    +      -       -      +
     46A  GLU      3.7     4.5    -      -       -      +
     48A  ALA*     1.3    77.8    -      -       -      +
     50A  ASN*     1.3    57.7    +      -       -      +
     52A  GLN*     3.2     5.9    +      -       -      +
     53A  ILE*     2.9    30.0    +      -       +      +
     98A  LEU*     3.9    33.6    -      -       +      +
    101A  TYR*     4.7     5.2    -      -       +      -
    102A  GLN*     3.8    19.7    -      -       +      +
    150A  LEU*     4.1    11.9    -      -       +      -
    162A  LEU*     4.0    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  GLU*     3.1    18.2    +      -       -      +
     47A  SER*     3.1    11.3    +      -       -      +
     49A  VAL*     1.3    75.4    -      -       -      +
     51A  GLU*     1.3    63.1    +      -       -      +
     53A  ILE*     3.3    14.6    +      -       -      +
     54A  ASN*     3.2    21.3    +      -       -      +
    102A  GLN*     3.0    17.5    +      -       -      +
    108A  LYS      3.1    20.2    +      -       -      -
    109A  VAL*     3.4     5.5    -      -       -      -
    110A  LYS*     3.1    46.4    +      -       +      +
    112A  GLN*     4.0    11.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  SER      2.9    13.3    +      -       -      +
     48A  ALA*     3.5    12.8    -      -       -      +
     50A  ASN*     1.3    76.8    -      -       -      +
     52A  GLN*     1.3    57.1    +      -       -      +
     54A  ASN*     3.1     5.8    +      -       -      +
     55A  VAL*     3.0    38.0    +      -       +      +
    112A  GLN*     3.5    24.6    +      -       -      +
    146A  LYS*     5.0     8.2    +      -       +      +
     14X  ILE      4.1    13.1    +      -       -      +
     15X  PHE*     3.8    19.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ALA      3.0    16.7    +      -       -      +
     49A  VAL      3.2     4.9    +      -       -      +
     51A  GLU*     1.3    74.5    -      -       -      +
     53A  ILE*     1.3    66.1    +      -       -      +
     55A  VAL*     3.1    21.0    +      -       -      +
     56A  GLU*     2.8    49.9    +      -       -      +
     98A  LEU*     3.6    20.2    -      -       +      -
    143A  THR*     3.9     5.1    +      -       -      +
    146A  LYS*     3.4    29.3    -      -       -      +
    147A  LEU*     3.5    29.0    -      -       +      +
    150A  LEU*     4.0    17.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  VAL*     2.9    25.3    +      -       +      +
     50A  ASN*     3.5    26.0    -      -       -      +
     51A  GLU      3.3     0.2    -      -       -      -
     52A  GLN*     1.3    76.6    -      -       -      +
     54A  ASN*     1.3    57.7    +      -       -      +
     56A  GLU*     3.4     2.3    +      -       -      +
     57A  TYR*     2.9    31.1    +      -       +      +
     95A  ALA*     3.9    11.8    -      -       +      +
     98A  LEU*     3.5    30.3    -      -       +      +
     99A  MET*     3.8    38.8    -      -       +      +
    102A  GLN*     4.7     0.4    -      -       +      -
    109A  VAL*     4.4     8.1    -      -       +      -
    110A  LYS      5.9     1.3    -      -       -      +
    111A  LEU*     3.8    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  ASN      3.2     6.3    +      -       -      +
     51A  GLU*     3.1    11.2    +      -       -      +
     53A  ILE*     1.3    79.2    -      -       -      +
     55A  VAL*     1.3    60.0    +      -       -      +
     57A  TYR*     3.9     3.8    -      -       -      +
     58A  ASN*     2.9    54.1    +      -       -      +
    112A  GLN*     3.3    46.3    +      -       +      +
    113A  SER      3.0    25.1    +      -       -      +
    114A  ILE*     4.3     2.4    -      -       -      +
     61G  TYR*     4.2     5.6    +      -       -      -
     14X  ILE*     4.8     0.9    -      -       -      -
     15X  PHE*     3.6    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 55 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  GLU*     3.0    33.5    +      -       +      +
     52A  GLN*     3.1    30.5    +      -       -      +
     54A  ASN*     1.3    76.2    -      -       -      +
     56A  GLU*     1.3    62.7    +      -       -      +
     58A  ASN*     3.3     3.8    +      -       -      +
     59A  VAL*     3.0    23.4    +      -       +      +
    143A  THR*     4.2    19.1    -      -       +      +
    146A  LYS*     4.1    31.4    -      -       +      -
     15X  PHE*     3.9    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  GLN*     2.8    39.1    +      -       -      +
     55A  VAL*     1.3    75.3    -      -       -      +
     57A  TYR*     1.3    58.1    +      -       -      +
     59A  VAL*     3.2     4.3    +      -       -      +
     60A  SER*     2.9    28.6    +      -       -      -
     91A  GLU*     3.0    16.0    -      -       -      +
     94A  HIS*     3.6    12.3    -      -       +      +
     95A  ALA*     3.7    21.8    -      -       +      +
     98A  LEU*     3.9    17.9    -      -       +      -
    143A  THR*     3.5    13.1    -      -       -      +
    147A  LEU*     3.9    10.7    -      -       -      +
    170A  TYR*     4.3     6.5    -      -       -      -
    214A   CA      2.4    29.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  ILE*     2.9    23.5    +      -       +      +
     54A  ASN*     3.9     6.5    -      -       -      +
     56A  GLU*     1.3    77.0    -      -       -      +
     58A  ASN*     1.3    63.6    +      -       -      +
     60A  SER*     3.3    11.5    +      -       -      -
     61A  TYR*     3.1    22.8    +      +       +      +
     92A  ARG*     3.6    25.5    +      -       +      -
     95A  ALA*     3.7    21.3    -      -       +      +
     99A  MET*     4.5     5.6    -      -       -      -
    111A  LEU*     4.6     2.7    -      -       +      -
    114A  ILE*     3.8    21.5    -      -       +      +
     57G  TYR*     5.4    12.6    -      +       -      -
     60G  SER*     5.0     2.1    +      -       -      -
     61G  TYR*     3.5    39.7    -      +       -      +
     64G  HIS*     2.7    41.2    +      +       -      +
     88G  SER*     4.5     1.6    +      -       -      -
    114G  ILE*     6.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  ASN*     2.9    51.1    +      -       -      +
     55A  VAL      3.5     4.7    -      -       -      +
     57A  TYR*     1.3    73.9    -      -       -      +
     59A  VAL*     1.3    60.9    +      -       -      +
     61A  TYR*     3.2     3.3    +      -       -      +
     62A  VAL*     2.9    34.0    +      -       -      +
    113A  SER      4.1     7.5    +      -       -      -
    114A  ILE*     3.6    22.5    -      -       -      +
    115A  VAL*     3.7    22.9    +      -       -      +
     15X  PHE*     3.7    27.4    +      -       +      -
     17X  PRO*     3.7     9.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  VAL*     3.0    20.6    +      -       +      +
     56A  GLU*     3.7     6.1    -      -       -      +
     58A  ASN*     1.3    72.3    -      -       -      +
     60A  SER*     1.3    67.5    +      -       -      +
     62A  VAL*     3.2     6.9    +      -       -      +
     63A  TYR*     2.9    54.6    +      -       +      -
     91A  GLU*     3.8    15.9    -      -       -      +
    139A  LEU*     4.8    21.1    -      -       +      +
    140A  GLU*     4.1     5.8    -      -       -      +
    143A  THR*     3.5    23.1    -      -       +      +
     15X  PHE*     5.0     7.4    -      -       +      -
     17X  PRO*     5.8     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  GLU      2.9    10.4    +      -       -      -
     57A  TYR*     3.3    16.2    -      -       -      -
     59A  VAL*     1.3    76.2    -      -       -      +
     61A  TYR*     1.3    58.4    +      -       -      +
     64A  HIS      3.0    15.4    +      -       -      -
     88A  SER*     2.7    50.2    +      -       -      +
     91A  GLU*     3.5    19.8    -      -       -      +
     92A  ARG*     3.7    18.0    +      -       -      +
     57G  TYR*     5.0     2.3    +      -       -      -
     92G  ARG*     4.5     4.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  TYR*     3.1    13.7    +      +       +      +
     58A  ASN      3.2     8.0    +      -       -      +
     60A  SER*     1.3    73.6    -      -       -      +
     62A  VAL*     1.3    68.1    +      -       +      +
     64A  HIS*     3.1     6.6    +      -       -      +
     65A  ALA*     3.0    20.8    +      -       -      +
    114A  ILE*     3.5    28.7    -      -       +      -
    115A  VAL      3.9     4.7    -      -       -      -
    117A  PRO*     3.6    31.2    -      -       +      -
     54G  ASN*     4.1     5.0    +      -       -      -
     57G  TYR*     3.6    46.0    -      +       -      +
    111G  LEU*     3.6    19.7    -      -       +      +
    112G  GLN      2.6    38.3    +      -       -      -
    113G  SER*     5.1     0.2    -      -       -      -
    114G  ILE*     3.7    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  ASN*     2.9    18.3    +      -       -      +
     59A  VAL*     3.2     9.6    +      -       -      +
     61A  TYR*     1.3    76.4    -      -       +      +
     63A  TYR*     1.3    62.9    +      -       -      +
     65A  ALA*     3.0     4.7    +      -       -      +
     66A  MET*     2.9    30.5    +      -       +      +
    117A  PRO*     4.2    12.3    -      -       +      -
    121A  PHE*     5.2     0.4    -      -       +      -
    139A  LEU*     3.7    28.3    -      -       +      -
     17X  PRO*     4.0    23.3    -      -       +      -
     18X  PHE*     3.8    37.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  VAL*     2.9    38.4    +      -       +      +
     60A  SER      3.7     2.2    -      -       -      +
     62A  VAL*     1.3    72.7    -      -       +      +
     64A  HIS*     1.3    57.5    +      -       -      +
     66A  MET*     3.1     9.5    +      -       -      +
     67A  PHE*     2.8    26.0    +      -       -      +
     83A  PHE*     6.0     1.3    -      +       -      -
     84A  PHE*     3.6    41.6    -      +       +      +
     87A  SER*     3.6    23.3    -      -       -      -
     88A  SER      3.7     6.1    -      -       -      +
     91A  GLU*     3.7    17.7    -      -       +      -
    136A  ALA*     3.6    31.2    +      -       +      +
    139A  LEU*     4.2    14.9    -      -       +      +
    140A  GLU*     2.6    40.0    +      -       -      +
    181A  ILE*     4.3     3.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  SER      3.0     8.2    +      -       -      +
     61A  TYR      3.1     9.1    +      -       -      +
     63A  TYR*     1.3    76.4    -      -       -      +
     65A  ALA*     1.3    57.2    +      -       -      +
     67A  PHE*     3.3    20.1    +      +       +      +
     68A  ALA*     3.0    26.2    +      -       -      +
     85A  LYS*     5.0     2.2    -      -       -      -
     88A  SER*     3.6    21.0    -      -       -      +
     57G  TYR*     2.7    36.0    +      +       -      +
     92G  ARG*     3.8    18.2    +      -       +      -
     96G  GLU*     2.7    41.2    +      -       +      +
     99G  MET*     3.7    24.6    -      -       +      +
    111G  LEU*     4.1     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  TYR      3.0    12.0    +      -       -      +
     62A  VAL      3.0     8.5    +      -       -      +
     64A  HIS*     1.3    76.5    -      -       -      +
     66A  MET*     1.3    61.6    +      -       -      +
     68A  ALA*     3.3     6.8    +      -       -      +
     69A  TYR*     3.1    18.4    +      -       -      +
    117A  PRO*     3.9    10.8    -      -       +      -
    118A  LEU      3.5    24.7    -      -       -      +
    119A  SER*     4.4     4.3    -      -       -      +
    121A  PHE*     3.8    11.0    -      -       +      -
    111G  LEU*     3.7    19.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  VAL*     2.9    26.8    +      -       +      +
     63A  TYR*     3.1    30.9    +      -       -      +
     65A  ALA*     1.3    73.8    -      -       -      +
     67A  PHE*     1.3    64.7    +      -       -      +
     69A  TYR*     3.3     1.4    +      -       -      +
     70A  PHE*     3.0    33.3    +      -       +      -
     84A  PHE*     3.3    31.6    -      -       +      -
    121A  PHE*     3.5    35.2    -      -       +      -
    132A  ALA*     3.3    43.1    -      -       +      +
    135A  LEU*     4.6     4.9    -      -       +      -
    136A  ALA*     4.7     0.7    -      -       -      +
    139A  LEU*     4.7     6.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  TYR      2.8    13.0    +      -       -      +
     64A  HIS*     3.4    26.5    -      +       -      +
     66A  MET*     1.3    76.6    -      -       -      +
     68A  ALA*     1.3    61.9    +      -       -      +
     70A  PHE*     3.2     1.7    +      -       -      +
     71A  ASP*     2.9    56.8    +      -       +      +
     81A  ALA*     3.3    28.7    -      -       +      +
     82A  LYS*     5.8     0.2    -      -       -      -
     84A  PHE*     3.6     7.2    -      -       -      +
     85A  LYS*     3.7    52.5    -      -       +      +
     96G  GLU*     4.4    10.5    -      -       +      -
     99G  MET*     4.2    11.7    -      -       +      -
    100G  GLU*     3.8    26.2    -      -       +      -
    103G  ASN*     5.6     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  HIS      3.0    13.8    +      -       -      +
     65A  ALA*     3.6    11.4    -      -       -      +
     66A  MET      3.3     0.4    -      -       -      -
     67A  PHE*     1.3    81.8    -      -       +      +
     69A  TYR*     1.3    63.0    +      -       -      +
     72A  ARG*     3.6     9.5    +      -       -      +
     99G  MET*     4.1     8.5    -      -       +      -
    103G  ASN*     2.9    28.3    +      -       -      +
    109G  VAL*     3.8    38.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  ALA      3.1     6.2    +      -       -      +
     66A  MET      3.7     6.3    -      -       -      +
     67A  PHE      3.2     0.2    -      -       -      -
     68A  ALA*     1.3    78.3    -      -       -      +
     70A  PHE*     1.3    94.3    +      +       -      +
     72A  ARG*     3.1    59.6    +      -       -      +
     75A  VAL*     3.6    28.3    -      -       +      +
    119A  SER      3.7    10.1    +      -       -      +
    120A  ASP*     3.8     5.6    -      -       +      -
    121A  PHE*     3.6    44.6    -      +       +      -
    122A  ASP*     3.3    34.0    +      -       +      +
    128A  ASP*     4.1     7.9    +      -       +      +
     33G  GLN*     6.2     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  MET*     3.0    30.6    +      -       +      +
     69A  TYR*     1.3    92.8    -      +       -      +
     71A  ASP*     1.3    58.5    +      -       -      +
     72A  ARG      3.2     2.1    +      -       -      -
     75A  VAL*     3.6    15.9    -      -       +      -
     76A  ALA*     3.8     5.5    +      -       -      -
     77A  LEU*     3.5    38.3    +      -       +      +
     78A  ARG*     5.3     0.3    -      -       -      -
     80A  LEU*     3.6    19.1    -      -       +      -
     81A  ALA*     3.9    24.5    -      -       -      +
     84A  PHE*     3.8    18.6    -      +       -      -
    121A  PHE*     4.5     6.3    -      -       +      -
    128A  ASP*     3.5    35.4    -      -       +      -
    132A  ALA*     3.4    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  PHE*     2.9    42.9    +      -       +      +
     69A  TYR      3.2     0.2    -      -       -      -
     70A  PHE*     1.3    75.9    -      -       -      +
     72A  ARG*     1.3    63.9    +      -       -      +
     76A  ALA*     5.8     0.2    -      -       -      -
     81A  ALA*     3.9     7.6    -      -       +      +
    100G  GLU*     4.1    16.2    -      -       -      +
    103G  ASN*     2.8    34.5    +      -       -      +
    179O  LYS*     2.9    35.0    +      -       -      -
    183O  GLU*     4.5     2.3    -      -       -      +
----------------------------------------------------------
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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