Contacts of the helix formed by residues 3 - 32 (chain G) in PDB entry 2HY6


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 3 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  VAL*     5.2    14.8    -      -       +      -
      1F  MET*     3.7    43.0    -      -       +      +
      2F  LYS      3.4    36.4    -      -       -      +
      3F  VAL*     4.7     1.1    -      -       -      -
      5F  GLN*     4.2     4.7    +      -       -      +
      6F  LEU*     4.5    25.6    -      -       +      +
    201F  HEZ      5.1     4.7    -      -       -      +
      4G  LYS*     1.3    62.1    +      -       -      +
      5G  GLN      3.3     2.7    -      -       -      -
      6G  LEU*     3.3    13.5    +      -       +      +
      7G  ALA*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 4 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5F  GLN*     3.4    37.4    +      -       -      +
      3G  VAL*     1.3    77.3    -      -       -      +
      5G  GLN*     1.3    58.0    +      -       -      +
      7G  ALA*     3.3     3.0    +      -       -      +
      8G  ASP*     2.8    31.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 5 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  GLU*     3.5    31.2    +      -       -      +
     14A  ALA*     3.8    18.1    -      -       +      +
     15A  SER*     5.7     2.4    +      -       -      -
     18A  TYR*     3.5    26.3    +      -       +      +
      3G  VAL      3.3     0.4    -      -       -      -
      4G  LYS*     1.3    79.2    -      -       -      +
      6G  LEU*     1.3    64.3    +      -       -      +
      8G  ASP*     3.2     2.3    +      -       -      -
      9G  ALA*     3.0    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 6 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  VAL*     4.2    29.1    -      -       +      +
     13A  LEU*     3.9    28.3    -      -       +      -
     14A  ALA*     3.8    20.5    -      -       +      +
     17A  ASN*     3.9    24.5    -      -       -      +
    202A  HEZ      5.0     1.6    -      -       -      +
      6F  LEU*     4.1    29.2    -      -       +      -
    201F  HEZ      4.8    15.0    -      -       +      +
      3G  VAL*     3.3    13.7    +      -       +      +
      5G  GLN*     1.3    79.3    -      -       -      +
      7G  ALA*     1.3    61.9    +      -       -      +
      9G  ALA*     3.2     1.9    +      -       -      +
     10G  VAL*     3.0    25.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 7 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5F  GLN*     3.6    41.7    -      -       +      +
      6F  LEU*     3.9    15.2    -      -       -      +
      9F  ALA*     3.4     4.5    -      -       +      +
      3G  VAL      2.9    17.4    +      -       -      +
      4G  LYS      3.7     3.8    -      -       -      +
      6G  LEU*     1.3    76.6    -      -       -      +
      8G  ASP*     1.3    56.9    -      -       -      +
     10G  VAL      3.3     1.0    +      -       -      -
     11G  GLU*     2.9    35.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 8 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  TYR*     2.6    33.5    +      -       -      +
      4G  LYS*     2.8    21.1    +      -       +      +
      5G  GLN*     3.5     2.0    -      -       -      +
      7G  ALA*     1.3    76.6    -      -       -      +
      9G  ALA*     1.3    57.5    +      -       -      +
     11G  GLU*     3.3    11.6    +      -       -      +
     12G  GLU*     3.0    38.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 9 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  ALA*     3.4    29.2    -      -       -      +
     17A  ASN*     3.9    19.0    -      -       +      +
     18A  TYR*     3.5    24.8    -      -       +      +
      5G  GLN      3.0    13.7    +      -       -      +
      6G  LEU*     3.6     7.9    -      -       +      +
      8G  ASP*     1.3    76.6    -      -       -      +
     10G  VAL*     1.3    57.2    +      -       -      +
     12G  GLU*     3.2     3.5    +      -       -      +
     13G  LEU*     3.0    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 10 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  ASN*     4.1    11.0    -      -       -      +
    202A  HEZ      4.0    29.8    -      -       +      -
      6F  LEU*     4.2    11.0    -      -       +      -
      9F  ALA*     3.5    32.3    -      -       +      +
     10F  VAL*     3.9    10.1    -      -       +      +
     13F  LEU*     4.2    18.0    -      -       +      +
      6G  LEU*     3.0    16.6    +      -       +      +
      7G  ALA      3.7     6.7    -      -       -      +
      9G  ALA*     1.3    75.9    -      -       -      +
     11G  GLU*     1.3    57.5    +      -       -      +
     13G  LEU*     3.2     8.0    +      -       -      +
     14G  ALA*     2.9    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 11 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5F  GLN      4.6     1.6    -      -       -      +
      8F  ASP*     4.0     7.3    -      -       -      +
      9F  ALA*     3.4    29.7    +      -       +      +
     12F  GLU*     3.5    23.3    -      -       -      +
      7G  ALA*     2.9    22.3    +      -       +      +
      8G  ASP*     3.4    14.6    -      -       -      +
     10G  VAL*     1.3    77.0    -      -       -      +
     12G  GLU*     1.3    58.1    +      -       +      +
     14G  ALA*     3.2     6.3    +      -       -      +
     15G  SER*     3.0    30.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 12 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  TYR*     3.3    31.1    -      -       +      +
     21A  ALA*     3.6    15.0    -      -       +      +
      8G  ASP*     3.0    27.4    +      -       -      +
      9G  ALA*     3.2     8.9    +      -       -      +
     11G  GLU*     1.3    73.0    -      -       +      +
     13G  LEU*     1.3    62.1    +      -       -      +
     15G  SER*     3.3     8.5    +      -       -      -
     16G  ALA*     3.0    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 13 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  ASN*     4.7     5.4    -      -       +      +
     20A  LEU*     3.9    27.4    -      -       +      -
     21A  ALA*     3.5    20.1    -      -       +      +
     24A  VAL*     4.0     7.9    -      -       +      -
    202A  HEZ      3.4    44.9    -      -       +      +
    203D  HEZ      4.6     6.7    -      -       -      -
     13F  LEU*     3.9    15.7    -      -       +      -
      9G  ALA      3.0    13.5    +      -       -      +
     10G  VAL*     3.5     9.9    -      -       -      +
     12G  GLU*     1.3    74.3    -      -       -      +
     14G  ALA*     1.3    63.9    +      -       -      +
     16G  ALA*     3.3     1.3    +      -       -      +
     17G  ASN*     3.0    40.0    +      -       -      +
    204G  HEZ      5.9     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 14 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12F  GLU*     3.7    18.4    -      -       +      +
     13F  LEU*     3.6    38.9    -      -       -      +
     16F  ALA*     3.3    10.9    -      -       +      +
     10G  VAL      2.9    13.0    +      -       -      +
     11G  GLU*     3.4    10.1    -      -       -      +
     13G  LEU*     1.3    76.2    -      -       -      +
     15G  SER*     1.3    61.6    +      -       -      +
     17G  ASN      3.3     1.2    +      -       -      -
     18G  TYR*     3.0    21.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 15 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11G  GLU      3.0    15.0    +      -       -      -
     12G  GLU*     3.6    11.5    -      -       -      -
     14G  ALA*     1.3    78.1    -      -       -      +
     16G  ALA*     1.3    63.1    +      -       -      +
     18G  TYR*     3.2     9.8    +      -       -      +
     19G  HIS*     3.0    38.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 16 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ALA*     3.4    28.3    -      -       -      +
     24A  VAL*     3.6    17.7    -      -       +      +
     25A  ALA*     3.8    13.7    -      -       +      +
     28A  ALA*     4.5     2.1    -      -       -      +
     12G  GLU      3.0    16.9    +      -       -      +
     13G  LEU      3.7     4.0    -      -       -      +
     15G  SER*     1.3    76.0    -      -       -      +
     17G  ASN*     1.3    57.6    +      -       -      +
     19G  HIS*     3.2    11.0    +      -       -      +
     20G  LEU*     2.8    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 17 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  VAL*     3.1    19.6    -      -       -      +
    203D  HEZ      4.5     4.9    -      -       -      -
     20E  LEU*     6.1     0.2    -      -       -      +
     13F  LEU*     3.7    11.3    -      -       +      +
     16F  ALA*     4.0     9.4    -      -       +      +
     17F  ASN*     2.6    34.6    +      -       -      +
     20F  LEU*     4.4     9.6    -      -       +      +
     13G  LEU*     3.0    29.9    +      -       -      +
     14G  ALA      3.8     3.4    -      -       -      +
     16G  ALA*     1.3    72.6    -      -       -      +
     18G  TYR*     1.3    60.5    +      -       -      +
     20G  LEU*     3.6     6.3    -      -       -      +
     21G  ALA*     2.9    29.6    +      -       -      +
    204G  HEZ      3.6    20.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 18 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16F  ALA*     3.9    11.3    -      -       +      +
     19F  HIS*     4.0    18.2    -      +       -      -
     14G  ALA      3.0    13.3    +      -       -      +
     15G  SER*     3.4    13.0    -      -       -      +
     17G  ASN*     1.3    75.5    -      -       -      +
     19G  HIS*     1.3    88.8    -      +       -      +
     21G  ALA*     3.2     7.3    +      -       -      +
     22G  ASN*     3.0    54.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 19 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  ALA*     5.9     3.7    -      -       +      +
     28A  ALA*     3.7    13.5    -      -       +      +
     15G  SER*     3.0    30.8    +      -       -      -
     16G  ALA*     3.2     9.3    +      -       -      +
     18G  TYR*     1.3    98.9    -      +       -      +
     20G  LEU*     1.3    66.8    +      -       -      +
     22G  ASN*     3.3     8.5    +      -       -      +
     23G  ALA*     3.0    23.7    +      -       -      +
     26G  ARG*     4.9     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 20 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  VAL*     4.2     9.4    -      -       +      -
     27A  LEU*     4.0    28.9    -      -       +      -
     28A  ALA*     3.5    28.1    -      -       +      +
     31A  VAL*     4.2     9.9    -      -       +      -
     20F  LEU*     3.9    28.5    -      -       +      -
     16G  ALA      2.8    16.7    +      -       -      +
     17G  ASN*     3.6     6.7    -      -       -      +
     18G  TYR      3.3     0.2    -      -       -      -
     19G  HIS*     1.3    77.3    -      -       -      +
     21G  ALA*     1.3    61.8    +      -       -      +
     23G  ALA*     3.2     1.9    +      -       -      +
     24G  VAL*     2.9    40.5    +      -       +      +
    204G  HEZ      4.1    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 21 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19F  HIS*     3.5    27.1    -      -       +      +
     20F  LEU*     3.5    35.1    -      -       -      +
     23F  ALA*     3.3    11.4    -      -       -      +
     17G  ASN      2.9    17.0    +      -       -      +
     18G  TYR*     3.2     6.0    +      -       -      +
     20G  LEU*     1.3    75.2    -      -       -      +
     22G  ASN*     1.3    58.6    +      -       -      +
     24G  VAL      3.3     0.3    +      -       -      -
     25G  ALA*     2.9    26.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 22 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19F  HIS*     2.8    28.2    +      -       -      -
     18G  TYR*     3.0    51.7    +      -       -      +
     19G  HIS*     3.8     9.3    -      -       +      +
     21G  ALA*     1.3    76.8    -      -       -      +
     23G  ALA*     1.3    57.0    +      -       -      +
     25G  ALA*     3.3     7.5    +      -       -      +
     26G  ARG*     3.0    50.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 23 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ALA*     3.5    26.0    -      -       -      +
     31A  VAL*     3.9    13.0    -      -       +      +
     32A  GLY*     3.8    13.3    -      -       -      +
     19G  HIS      3.0    16.3    +      -       -      +
     20G  LEU      3.2     5.1    +      -       -      +
     22G  ASN*     1.3    75.5    -      -       -      +
     24G  VAL*     1.3    57.5    +      -       -      +
     26G  ARG*     3.4    22.7    +      -       -      +
     27G  LEU*     3.0    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 24 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  VAL*     4.3    10.5    -      -       +      -
     20F  LEU*     4.3     7.2    -      -       +      -
     23F  ALA*     3.5    31.2    -      -       +      +
     24F  VAL*     3.9    14.4    -      -       +      +
     27F  LEU*     4.1    18.9    -      -       +      +
     20G  LEU*     2.9    39.0    +      -       +      +
     21G  ALA*     3.7     4.3    -      -       -      +
     23G  ALA*     1.3    71.7    -      -       -      +
     25G  ALA*     1.3    61.0    +      -       -      +
     27G  LEU*     3.2     8.7    +      -       +      +
     28G  ALA*     2.9    25.8    +      -       -      +
    204G  HEZ      5.3     7.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 25 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19F  HIS*     5.7     4.9    -      -       +      -
     23F  ALA*     3.9    14.3    -      -       +      +
     26F  ARG*     5.6     8.7    -      -       -      +
     21G  ALA      2.9    16.8    +      -       -      +
     22G  ASN*     3.3     8.7    +      -       -      +
     24G  VAL*     1.3    78.5    -      -       -      +
     26G  ARG*     1.3    61.5    +      -       +      +
     28G  ALA*     3.3     8.6    +      -       -      +
     29G  LYS*     3.1    30.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 26 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ALA      5.3     0.6    +      -       -      -
     32A  GLY*     4.4    15.5    +      -       -      -
     19G  HIS      4.9     1.8    +      -       -      -
     22G  ASN*     3.0    44.5    +      -       -      +
     23G  ALA*     3.6    25.8    -      -       -      +
     25G  ALA*     1.3    75.9    -      -       +      +
     27G  LEU*     1.3    63.1    +      -       -      +
     29G  LYS*     3.3    14.5    +      -       +      +
     30G  ALA*     3.0    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 27 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  VAL*     4.3    25.1    -      -       +      +
     27F  LEU*     4.1    27.8    -      -       +      -
    205F  HEZ      4.9    16.6    -      -       +      +
     23G  ALA      3.0    14.5    +      -       -      +
     24G  VAL*     3.2    10.1    +      -       +      +
     26G  ARG*     1.3    77.0    -      -       -      +
     28G  ALA*     1.3    57.4    +      -       -      +
     30G  ALA*     3.1    11.0    +      -       +      +
     31G  VAL*     2.9    43.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 28 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23F  ALA      4.6     0.2    -      -       -      +
     26F  ARG*     3.8    16.2    -      -       +      +
     27F  LEU*     3.5    42.8    -      -       -      +
     30F  ALA*     3.5    10.3    -      -       +      +
     24G  VAL      2.9    12.0    +      -       -      +
     25G  ALA*     3.3    10.3    +      -       -      +
     27G  LEU*     1.3    76.6    -      -       -      +
     29G  LYS*     1.3    62.4    +      -       +      +
     31G  VAL      3.5     0.3    +      -       -      -
     32G  GLY*     3.0    19.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 29 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25G  ALA*     3.1    19.3    +      -       +      +
     26G  ARG*     3.5    15.5    -      -       +      +
     27G  LEU      3.2     0.2    -      -       -      -
     28G  ALA*     1.3    75.4    -      -       +      +
     30G  ALA*     1.3    58.7    +      -       -      +
     32G  GLY*     3.0    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 30 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26G  ARG      3.0    13.6    +      -       -      +
     27G  LEU*     3.1    16.8    +      -       +      +
     29G  LYS*     1.3    77.2    -      -       -      +
     31G  VAL*     1.3    62.7    +      -       -      +
     32G  GLY      3.5     6.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 31 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27F  LEU*     4.2    14.4    -      -       +      -
     30F  ALA*     3.7    31.5    -      -       +      +
     31F  VAL*     4.0    11.7    -      -       +      +
    205F  HEZ      5.0     5.8    -      -       -      +
     27G  LEU*     2.9    32.4    +      -       +      +
     28G  ALA*     3.8     4.7    -      -       -      +
     30G  ALA*     1.3    75.9    -      -       -      +
     32G  GLY*     1.3    61.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 32 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  ALA*     4.1    11.6    -      -       -      +
     28G  ALA      3.0    15.3    +      -       -      -
     29G  LYS      3.0    17.4    +      -       -      +
     30G  ALA      3.5     5.5    -      -       -      +
     31G  VAL*     1.3    82.7    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


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

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

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