Contacts of the helix formed by residues 48 - 76 (chain B) in PDB entry 6WYG


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 48 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154A  ASN*     4.4    10.1    -      -       -      +
    205A  RFT      6.5     1.1    -      -       +      -
     41B  PHE*     2.9    38.7    +      -       +      +
     46B  VAL*     3.4    17.2    -      -       +      +
     47B  ALA*     1.3    73.5    -      -       -      +
     49B  LYS*     1.3    65.3    +      -       -      +
     50B  ASN      3.3     2.2    -      -       -      -
     51B  PHE*     3.2    14.5    +      -       +      +
     52B  ALA      3.1    17.8    +      -       -      -
    167B  GLU*     3.6    35.2    -      -       +      +
    168B  TYR*     4.0    13.5    -      -       +      +
    171B  ASP*     3.3    31.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 49 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  PHE      5.0     0.9    -      -       -      -
     42B  ASP*     6.3     0.4    -      -       -      +
     47B  ALA      3.7     4.5    +      -       -      +
     48B  LEU*     1.3    73.6    -      -       -      +
     50B  ASN*     1.3    66.1    +      -       -      +
     52B  ALA*     3.3     9.3    -      -       +      +
     53B  LYS*     3.0    35.0    +      -       +      +
    171B  ASP*     3.4     5.6    +      -       -      +
    172B  LYS*     5.8     5.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 50 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  LYS*     1.3    76.9    -      -       -      +
     51B  PHE*     1.3    57.4    +      -       -      +
     53B  LYS*     3.7    11.8    -      -       -      +
     54B  TYR*     2.8    31.2    +      -       -      +
    171B  ASP*     2.6    52.2    +      -       -      +
    172B  LYS*     4.1    12.3    -      -       -      +
    175B  LEU*     3.5    20.7    -      -       +      +
    176B  GLY*     3.5    20.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 51 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  PHE*     3.5    25.8    -      +       +      -
     48B  LEU*     3.2    24.2    +      -       +      +
     50B  ASN*     1.3    75.8    -      -       -      +
     52B  ALA*     1.3    62.8    +      -       -      +
     54B  TYR*     3.6     1.0    -      -       -      +
     55B  PHE*     3.0    48.4    +      +       -      -
     96B  GLY*     3.6    29.2    -      -       -      -
    100B  MET*     3.8    17.5    -      -       +      -
    155B  LEU*     4.4    10.5    -      -       +      -
    167B  GLU*     3.6    24.5    -      -       +      -
    170B  PHE*     3.6    19.3    -      +       -      -
    171B  ASP*     3.0    24.3    +      -       +      -
    175B  LEU*     3.7    17.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 52 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  SER*     2.8    46.9    +      -       -      +
     41B  PHE*     3.7     7.1    -      -       +      +
     42B  ASP*     4.1    14.4    -      -       +      +
     48B  LEU      3.1    11.6    +      -       -      +
     49B  LYS*     3.3    13.5    -      -       +      +
     50B  ASN      3.2     0.2    -      -       -      -
     51B  PHE*     1.3    76.7    -      -       -      +
     53B  LYS*     1.3    58.8    +      -       +      +
     56B  LEU*     2.9    16.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 53 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  LYS*     3.0    25.7    +      -       +      +
     50B  ASN*     3.2    13.2    +      -       -      +
     52B  ALA*     1.3    73.2    -      -       +      +
     54B  TYR*     1.3    66.5    +      -       -      +
     56B  LEU*     3.3     9.9    +      -       +      +
     57B  HIS*     2.9    24.8    +      -       -      +
    175B  LEU      6.0     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 54 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  ASN      2.8    17.5    +      -       -      +
     51B  PHE      3.6     3.6    -      -       -      +
     53B  LYS*     1.3    76.4    -      -       -      +
     55B  PHE*     1.3    85.2    +      +       -      +
     57B  HIS*     3.2     8.5    +      +       +      +
     58B  GLN*     2.9    50.9    +      -       +      +
    100B  MET*     3.7    23.1    -      -       +      -
    147B  GLU*     2.6    30.8    +      -       -      -
    148B  LEU*     3.7    15.6    -      -       +      +
    151B  HIS*     3.5    24.6    -      +       -      -
    175B  LEU*     3.6    22.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 55 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  TYR*     3.3    54.7    -      +       -      +
     37B  MET*     4.0    18.6    -      -       +      -
     38B  SER*     3.7    12.8    -      -       -      +
     41B  PHE*     4.0    17.5    -      +       -      -
     51B  PHE*     3.0    46.1    +      +       -      +
     54B  TYR*     1.3    94.4    -      +       -      +
     56B  LEU*     1.3    57.7    +      -       -      +
     58B  GLN*     4.2     2.0    -      -       +      -
     59B  SER*     3.0    23.6    +      -       -      -
     99B  ALA*     4.1    18.6    -      -       +      -
    100B  MET*     3.7    26.5    -      -       +      -
    103B  ALA*     4.2     6.5    -      -       +      -
    148B  LEU*     5.0     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 56 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  LEU*     4.1    26.5    -      -       +      -
     38B  SER*     3.5    13.6    -      -       -      +
     39B  TYR*     4.4    17.3    -      -       +      +
     52B  ALA      2.9    18.7    +      -       -      +
     53B  LYS*     3.7     9.9    -      -       +      +
     54B  TYR      3.3     0.2    -      -       -      -
     55B  PHE*     1.3    74.4    -      -       -      +
     57B  HIS*     1.3    59.3    +      -       -      +
     59B  SER*     3.1     6.4    +      -       -      -
     60B  HIS*     3.0    57.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 57 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53B  LYS      2.9    13.8    +      -       -      +
     54B  TYR*     3.6    10.3    -      +       +      +
     56B  LEU*     1.3    73.9    -      -       -      +
     58B  GLN*     1.3    81.8    +      -       -      +
     60B  HIS*     3.4    10.8    +      -       +      +
     61B  GLU*     3.0    39.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 58 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  TYR*     3.5    41.9    +      -       +      +
     54B  TYR*     2.9    52.7    +      -       +      +
     55B  PHE*     3.6     3.6    -      -       -      +
     56B  LEU      3.3     0.2    -      -       -      -
     57B  HIS*     1.3    90.6    -      -       -      +
     59B  SER*     1.3    58.0    +      -       -      +
     61B  GLU*     2.8    30.4    +      -       -      +
     62B  GLU*     2.9    33.3    +      -       -      +
    107B  GLU*     4.7     3.5    -      -       -      +
    144B  ALA*     5.5     5.0    -      -       -      +
    147B  GLU*     4.5     5.5    +      -       -      -
    148B  LEU*     6.3     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 59 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  SER*     3.0    49.9    +      -       -      +
     34B  TYR*     3.5    15.2    -      -       -      +
     35B  LEU*     3.6    21.4    -      -       -      +
     55B  PHE      3.0    12.2    +      -       -      -
     56B  LEU*     3.1     8.6    +      -       -      +
     58B  GLN*     1.3    76.9    -      -       -      +
     60B  HIS*     1.3    69.3    +      -       -      +
     62B  GLU      3.3     0.7    +      -       -      -
     63B  ARG*     3.0    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 60 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  LEU*     3.0    50.2    +      -       +      +
     57B  HIS*     3.9    10.4    +      -       -      +
     59B  SER*     1.3    81.6    -      -       -      +
     61B  GLU*     1.3    58.2    +      -       -      +
     63B  ARG*     3.4    16.3    -      -       +      +
     64B  GLU*     3.0    36.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 61 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57B  HIS*     3.0    34.8    +      -       +      +
     58B  GLN*     2.8    34.2    +      -       -      +
     60B  HIS*     1.3    75.8    -      -       -      +
     62B  GLU*     1.3    62.8    +      -       -      +
     64B  GLU*     3.2    14.7    +      -       -      +
     65B  HIS*     2.9    44.3    +      -       +      +
    140B  GLU*     4.2    18.7    -      -       -      +
    144B  ALA*     5.5     2.8    -      -       -      +
    202B   FE      4.1    11.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 62 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  GLU*     2.6    22.8    -      -       -      +
     30B  ALA*     3.4    19.8    -      -       +      +
     31B  SER*     3.6    23.6    -      -       -      +
     34B  TYR*     3.7    20.6    -      -       +      -
     58B  GLN      2.9    20.0    +      -       -      +
     59B  SER      3.3     0.2    +      -       -      -
     61B  GLU*     1.3    79.2    -      -       -      +
     63B  ARG*     1.3    58.0    +      -       -      +
     65B  HIS*     3.2    11.1    +      -       -      +
     66B  ALA*     2.9    24.4    +      -       -      +
    107B  GLU*     3.4     4.5    -      -       -      +
    110B  VAL*     5.1     1.6    -      -       -      +
    201B   FE      2.3    31.9    -      -       -      -
    202B   FE      2.3    21.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 63 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28B  LEU*     4.8    17.7    -      -       +      +
     31B  SER*     3.5    21.7    -      -       -      +
     59B  SER      3.0     8.6    +      -       -      +
     60B  HIS*     3.4    19.7    -      -       -      +
     62B  GLU*     1.3    74.1    -      -       -      +
     64B  GLU*     1.3    70.1    +      -       +      +
     66B  ALA*     3.0    10.4    +      -       -      +
     67B  GLU*     2.9    57.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 64 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60B  HIS*     3.0    27.1    +      -       -      +
     61B  GLU*     3.2    11.9    +      -       -      +
     63B  ARG*     1.3    78.5    -      -       +      +
     65B  HIS*     1.3    59.5    +      -       +      +
     67B  GLU*     3.2    14.0    +      -       -      +
     68B  LYS*     2.9    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 65 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  GLU*     3.7     8.7    -      -       -      +
     61B  GLU*     2.9    36.1    +      -       +      +
     62B  GLU*     3.3    12.4    +      -       -      +
     64B  GLU*     1.3    77.6    -      -       +      +
     66B  ALA*     1.3    64.0    +      -       -      +
     68B  LYS*     3.4     6.4    +      -       +      -
     69B  LEU*     3.0    11.3    +      -       -      +
    136B  HIS      4.5    10.5    +      -       -      -
    137B  TYR*     2.5    49.2    +      +       +      -
    140B  GLU*     4.2    28.2    +      -       +      +
    141B  GLN*     5.3     1.8    -      -       -      -
    201B   FE      2.8    23.6    -      -       -      -
    202B   FE      4.7     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 66 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  ILE*     4.2     7.1    -      -       +      +
     27B  GLU*     3.9    17.4    -      -       +      +
     28B  LEU*     3.6    37.2    -      -       +      +
     62B  GLU      2.9    12.6    +      -       -      +
     63B  ARG      3.0     9.6    +      -       -      +
     65B  HIS*     1.3    76.4    -      -       -      +
     67B  GLU*     1.3    58.3    +      -       +      +
     69B  LEU*     3.1     7.9    +      -       -      +
     70B  MET*     2.9    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 67 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28B  LEU*     6.4     0.4    -      -       +      -
     63B  ARG*     2.9    55.3    +      -       -      +
     64B  GLU*     3.2    14.7    +      -       -      +
     66B  ALA*     1.3    74.8    -      -       +      +
     68B  LYS*     1.3    61.6    +      -       -      +
     70B  MET*     3.3    17.1    +      -       -      +
     71B  LYS*     2.9    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 68 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  GLU      2.9    15.6    +      -       -      +
     65B  HIS*     4.3     5.2    -      -       +      -
     67B  GLU*     1.3    75.9    -      -       -      +
     69B  LEU*     1.3    56.6    +      -       -      +
     71B  LYS*     3.4    11.5    +      -       +      +
     72B  LEU*     2.9    26.0    +      -       -      +
    132B  PHE*     3.6    15.8    -      -       +      -
    136B  HIS*     4.1    36.1    -      -       +      +
    137B  TYR*     3.3    16.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 69 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  ILE*     3.8    28.5    -      -       +      +
     23B  GLN*     3.6    27.8    -      -       +      +
     24B  ILE*     3.6    14.1    -      -       +      +
     27B  GLU*     3.6    31.4    -      -       +      -
     65B  HIS      3.0     8.4    +      -       -      +
     66B  ALA      3.5     6.7    -      -       -      +
     68B  LYS*     1.3    74.3    -      -       -      +
     70B  MET*     1.3    61.1    +      -       -      +
     72B  LEU*     3.3     4.3    +      -       +      +
     73B  GLN*     2.9    27.9    +      -       -      +
    132B  PHE*     3.9    19.1    -      -       +      -
    133B  ILE*     4.6     6.7    -      -       +      -
    137B  TYR*     3.0    31.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 70 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  ILE*     3.7    29.2    -      -       +      -
     28B  LEU*     5.3     5.6    -      -       -      -
     66B  ALA*     2.9    23.4    +      -       -      +
     67B  GLU*     3.3    20.8    +      -       -      +
     69B  LEU*     1.3    77.1    -      -       -      +
     71B  LYS*     1.3    62.3    +      -       -      +
     73B  GLN      3.2     1.9    +      -       -      -
     74B  ASN*     3.0    22.3    +      -       -      +
     80B  ILE*     3.2    43.0    -      -       +      +
     82B  LEU*     4.1    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 71 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67B  GLU      2.9    17.0    +      -       -      +
     68B  LYS*     3.6     9.9    -      -       +      +
     70B  MET*     1.3    78.9    -      -       -      +
     72B  LEU*     1.3    58.0    +      -       -      +
     74B  ASN*     3.2     9.7    +      -       -      +
     75B  GLN*     2.9    56.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 72 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  TYR*     4.5     2.2    -      -       -      +
     20B  ILE*     3.9    19.7    -      -       +      -
     68B  LYS      2.9    17.9    +      -       -      +
     69B  LEU*     3.5     4.7    -      -       -      +
     71B  LYS*     1.3    71.8    -      -       -      +
     73B  GLN*     1.3    69.3    +      -       -      +
     75B  GLN*     3.1    16.2    +      -       +      +
     76B  ARG*     3.1    32.9    +      -       +      +
    128B  HIS*     3.5    32.1    -      -       +      +
    129B  LEU*     3.9    25.8    -      -       +      -
    132B  PHE*     3.6    37.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 73 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  TYR*     2.6    42.7    +      -       -      -
     17B  GLU*     3.0    35.4    +      -       -      +
     20B  ILE*     3.4    16.4    -      -       +      +
     21B  ASN*     3.2    21.4    +      -       -      +
     24B  ILE*     4.5     0.9    -      -       +      -
     69B  LEU      2.9    13.5    +      -       -      +
     70B  MET*     3.2     9.4    +      -       -      +
     72B  LEU*     1.3    78.2    -      -       -      +
     74B  ASN*     1.3    61.8    +      -       -      +
     76B  ARG*     3.5     1.7    +      -       -      +
     77B  GLY      3.4     2.4    +      -       -      -
     78B  GLY*     3.1    37.4    +      -       -      +
     79B  ARG      3.9     6.1    -      -       -      -
     80B  ILE*     3.6    19.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 74 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  VAL*     4.4     4.0    -      -       -      +
     70B  MET*     3.0    18.6    +      -       -      +
     71B  LYS*     3.7     9.6    -      -       -      +
     72B  LEU      3.2     0.4    -      -       -      -
     73B  GLN*     1.3    74.0    -      -       -      +
     75B  GLN*     1.3    66.0    +      -       +      +
     77B  GLY*     3.0    13.9    +      -       -      -
     78B  GLY      3.8     5.4    -      -       -      +
     79B  ARG*     3.7    19.6    +      -       -      +
     80B  ILE*     3.9    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 75 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  VAL*     3.7    15.1    -      -       -      +
     71B  LYS*     2.9    48.9    +      -       +      +
     72B  LEU*     3.1    22.7    +      -       +      +
     74B  ASN*     1.3    76.8    -      -       +      +
     76B  ARG*     1.3    66.0    +      -       +      +
     77B  GLY      3.5     0.7    +      -       -      -
    128B  HIS*     5.7     2.7    -      -       +      -
    132B  PHE*     5.3     3.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 76 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  VAL*     4.1     3.6    -      -       -      -
      9B  ARG*     3.4    25.7    -      -       -      +
     10B  GLN      2.7    30.7    +      -       -      +
     11B  ASN*     3.1    22.4    +      -       -      +
     12B  TYR*     3.5    41.1    -      -       +      +
     72B  LEU*     3.1    29.5    +      -       +      +
     73B  GLN      4.1     0.4    -      -       -      +
     74B  ASN      3.1     1.0    -      -       -      -
     75B  GLN*     1.3    80.3    -      -       -      +
     77B  GLY*     1.3    60.0    +      -       -      +
     78B  GLY      3.4     0.8    +      -       -      -
    126B  ASP*     2.8    30.5    +      -       -      -
    128B  HIS*     3.1    38.8    +      -       -      +
    129B  LEU*     3.8     5.1    -      -       -      +
----------------------------------------------------------
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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