Contacts of the helix formed by residues 6 - 31 (chain A) in PDB entry 6VMS


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 SER 6 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  THR      3.9     0.6    +      -       -      -
      5A  LEU*     1.3    76.2    -      -       -      +
      7A  ALA*     1.3    67.8    +      -       -      +
      8A  GLU      3.3     2.0    -      -       -      -
      9A  ASP*     3.2    11.9    +      -       -      +
     10A  LYS*     3.0    23.1    +      -       -      +
    167E  HIS*     3.0    39.6    +      -       -      -
    169E  ASN*     4.3     4.1    +      -       -      -
    173E  TYR*     3.7    28.7    +      -       -      -
    233E  LEU*     4.9     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 7 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  SER*     1.3    74.4    -      -       -      +
      8A  GLU*     1.3    62.9    +      -       -      +
     10A  LYS*     3.2    13.0    +      -       -      +
     11A  ALA*     3.0    22.7    +      -       -      +
    173E  TYR*     5.6     0.4    -      -       -      -
    232E  HIS*     4.0    12.6    -      -       +      +
    233E  LEU      3.6    22.2    +      -       -      +
    234E  GLU*     4.6     2.7    -      -       -      -
    235E  TYR*     3.9    33.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 8 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  SER*     3.3     1.8    -      -       -      -
      7A  ALA*     1.3    76.9    -      -       -      +
      9A  ASP*     1.3    64.2    +      -       -      +
     11A  ALA*     3.4     7.9    +      -       -      +
     12A  ALA*     2.9    27.7    +      -       -      +
    101E  TYR*     3.6    22.6    -      -       +      +
    102E  TYR*     5.5     0.2    -      -       -      -
    107E  PRO*     3.4    11.6    -      -       -      +
    173E  TYR*     2.7    42.0    -      -       +      +
    175E  TYR*     2.7    25.1    +      -       -      -
    191E  ARG*     2.9    27.2    +      -       -      +
    232E  HIS*     3.3    24.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 9 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  LEU*     4.6    18.5    -      -       +      +
      6A  SER*     3.2    20.5    +      -       -      +
      8A  GLU*     1.3    83.6    -      -       -      +
     10A  LYS*     1.3    59.3    +      -       -      +
     12A  ALA*     3.7     7.6    -      -       -      +
     13A  VAL*     2.9    36.0    +      -       +      +
     68B  ARG*     5.7     4.0    +      -       -      -
     86B  THR*     5.4     8.3    -      -       +      +
     88B  ASN*     4.6     8.7    +      -       -      +
    169E  ASN*     4.1    19.5    +      -       -      +
    173E  TYR*     4.7     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 10 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  GLY      5.2     9.5    -      -       -      +
      3A  CYS*     4.8    16.7    -      -       -      +
      5A  LEU*     3.6    37.9    +      -       +      -
      6A  SER      3.0    16.9    +      -       -      +
      7A  ALA*     3.5    10.8    -      -       -      +
      9A  ASP*     1.3    77.0    -      -       -      +
     11A  ALA*     1.3    55.7    +      -       -      +
     13A  VAL*     3.3     7.5    +      -       -      +
     14A  GLU*     2.9    35.4    +      -       +      +
     59E  TYR*     4.9    14.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 11 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  ALA      3.0    13.3    +      -       -      +
      8A  GLU      3.6     2.7    -      -       -      +
     10A  LYS*     1.3    76.8    -      -       -      +
     12A  ALA*     1.3    58.3    +      -       -      +
     14A  GLU*     3.2    14.7    +      -       -      +
     15A  ARG*     2.9    26.3    +      -       -      +
     50E  TYR*     4.5    11.2    -      -       +      +
    101E  TYR*     3.4    40.4    -      -       +      -
    235E  TYR*     6.6     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 12 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  GLU      2.9    15.4    +      -       -      +
      9A  ASP*     3.7     9.0    -      -       -      +
     10A  LYS      3.3     0.4    -      -       -      -
     11A  ALA*     1.3    76.7    -      -       -      +
     13A  VAL*     1.3    59.3    +      -       -      +
     15A  ARG*     3.2     6.5    +      -       -      +
     16A  SER*     2.8    27.6    +      -       -      -
     88B  ASN*     4.3    17.7    -      -       +      +
     89B  LYS      4.7     4.4    -      -       -      +
    101E  TYR      3.3    20.6    +      -       -      +
    102E  TYR*     4.0    14.6    -      -       +      -
    103E  TYR      5.2     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 13 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  LEU*     4.8    15.3    -      -       +      -
      9A  ASP*     2.9    23.2    +      -       +      +
     10A  LYS*     3.6     7.4    -      -       -      +
     11A  ALA      3.2     0.4    -      -       -      -
     12A  ALA*     1.3    74.4    -      -       -      +
     14A  GLU*     1.3    66.8    +      -       +      +
     16A  SER*     3.1     8.6    +      -       -      -
     17A  LYS*     2.9    42.5    +      -       +      +
     88B  ASN*     3.3    25.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 14 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  LYS*     2.9    21.4    +      -       +      +
     11A  ALA*     3.2    14.3    +      -       -      +
     13A  VAL*     1.3    76.1    -      -       +      +
     15A  ARG*     1.3    63.2    +      -       -      +
     17A  LYS*     3.3     9.5    +      -       +      +
     18A  MET*     2.9    27.8    +      -       +      +
     50E  TYR*     5.1     4.2    +      -       -      -
     52E  SER*     3.7    23.9    +      -       -      -
     56E  GLY*     4.4     8.1    -      -       -      -
     57E  THR*     3.6    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 15 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ALA      2.9    12.7    +      -       -      +
     12A  ALA*     3.2    10.3    +      -       -      +
     14A  GLU*     1.3    77.0    -      -       -      +
     16A  SER*     1.3    57.1    +      -       -      +
     18A  MET*     3.2    13.5    +      -       +      +
     19A  ILE*     2.9    43.7    +      -       +      +
     89B  LYS      4.6     4.5    -      -       -      +
     90B  VAL      3.3    18.8    +      -       -      -
     91B  HIS*     3.6    30.9    +      -       -      -
    131B  GLY      5.5     1.2    +      -       -      -
     31E  SER*     3.2    23.2    +      -       -      +
    100E  ILE*     3.0    36.4    -      -       -      +
    101E  TYR      4.3     8.3    -      -       -      +
    102E  TYR*     4.0    21.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 16 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  ALA      2.8    12.7    +      -       -      -
     13A  VAL*     3.1    13.4    +      -       -      -
     15A  ARG*     1.3    77.0    -      -       -      +
     17A  LYS*     1.3    58.4    +      -       -      +
     19A  ILE*     3.3     2.8    +      -       -      +
     20A  ASP*     2.9    40.3    +      -       -      +
     87B  THR      4.5     2.3    +      -       -      -
     88B  ASN*     4.3     8.2    -      -       -      -
     89B  LYS*     3.6    41.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 17 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  VAL*     2.9    34.1    +      -       +      +
     14A  GLU*     3.8     7.0    -      -       +      +
     16A  SER*     1.3    77.1    -      -       -      +
     18A  MET*     1.3    62.8    +      -       -      +
     20A  ASP*     3.3     9.6    +      -       -      +
     21A  ARG*     2.9    40.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 18 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  GLU*     2.9    17.8    +      -       +      +
     15A  ARG*     3.4    15.7    -      -       -      +
     17A  LYS*     1.3    77.4    -      -       -      +
     19A  ILE*     1.3    62.9    +      -       +      +
     21A  ARG*     3.3    10.9    +      -       -      +
     22A  ASN*     3.0    35.8    +      -       -      +
     30E  SER      4.7     3.4    -      -       -      +
     31E  SER*     5.8     2.5    -      -       -      -
     53E  SER*     4.0    17.5    -      -       -      +
     54E  GLY*     3.5    37.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 19 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ARG*     2.9    36.7    +      -       +      +
     16A  SER*     3.7     5.2    -      -       -      +
     18A  MET*     1.3    78.4    -      -       +      +
     20A  ASP*     1.3    58.9    +      -       -      +
     22A  ASN*     3.2     9.6    +      -       -      +
     23A  LEU*     2.9    39.6    +      -       +      +
     80B  ILE*     6.4     0.2    -      -       +      -
     89B  LYS*     4.0    24.0    -      -       +      +
     90B  VAL      4.1    20.4    -      -       -      +
     91B  HIS*     4.6     0.7    -      -       -      +
     92B  ALA*     3.6    38.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 20 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  SER*     2.9    26.7    +      -       -      +
     17A  LYS*     3.3    10.7    +      -       -      +
     19A  ILE*     1.3    76.2    -      -       -      +
     21A  ARG*     1.3    57.9    +      -       +      +
     23A  LEU*     3.4     7.9    +      -       -      +
     24A  ARG*     2.9    30.3    +      -       -      +
     53B  GLY*     4.9     3.4    -      -       -      -
     89B  LYS*     2.8    42.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 21 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  LYS*     2.9    28.1    +      -       -      +
     18A  MET*     3.6    10.1    -      -       -      +
     19A  ILE      3.2     0.2    -      -       -      -
     20A  ASP*     1.3    78.0    -      -       +      +
     22A  ASN*     1.3    65.8    +      -       -      +
     24A  ARG*     3.2    25.8    +      -       -      +
     25A  GLU*     3.0    33.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 22 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  MET*     3.0    32.0    +      -       -      +
     19A  ILE*     3.2     8.5    +      -       -      +
     21A  ARG*     1.3    78.6    -      -       -      +
     23A  LEU*     1.3    64.0    +      -       +      +
     25A  GLU*     3.3    16.7    +      -       -      +
     26A  ASP*     3.0    31.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 23 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  ILE*     2.9    34.3    +      -       +      +
     20A  ASP*     3.7     7.2    -      -       -      +
     22A  ASN*     1.3    79.0    -      -       +      +
     24A  ARG*     1.3    58.0    +      -       -      +
     26A  ASP*     3.2     3.2    +      -       -      +
     27A  GLY      2.9    23.9    +      -       -      -
     53B  GLY*     3.9    23.3    -      -       -      +
     55B  LEU*     3.6    12.3    -      -       +      +
     76B  ASP*     5.4     2.1    -      -       -      +
     78B  LYS*     3.5    45.3    -      -       +      +
     80B  ILE*     3.9    21.1    -      -       +      -
     89B  LYS*     4.3     9.9    -      -       -      -
     92B  ALA*     4.4    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 24 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  ASP      2.9    18.0    +      -       -      +
     21A  ARG*     3.7    23.8    +      -       -      +
     23A  LEU*     1.3    76.9    -      -       -      +
     25A  GLU*     1.3    64.6    +      -       -      +
     27A  GLY*     3.3     1.8    +      -       -      +
     28A  GLU*     2.6    62.2    +      -       -      +
     55B  LEU*     4.8     8.1    -      -       +      -
    146R  TYR*     4.2    27.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 25 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ARG*     3.0    21.2    +      -       -      +
     22A  ASN*     3.6    19.1    -      -       -      +
     24A  ARG*     1.3    83.1    -      -       -      +
     26A  ASP*     1.3    64.6    -      -       -      +
     28A  GLU*     3.2    17.8    +      -       -      +
     29A  LYS*     3.0    36.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 26 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  ASN*     3.0    21.9    +      -       -      +
     23A  LEU      3.7     2.7    -      -       -      +
     25A  GLU*     1.3    78.3    -      -       -      +
     27A  GLY*     1.3    58.0    +      -       -      +
     29A  LYS*     3.3    15.3    +      -       -      +
     30A  ALA*     2.9    29.7    +      -       -      +
     76B  ASP*     5.7     4.0    -      -       -      +
     78B  LYS*     2.6    36.9    +      -       -      +
     94B  PRO*     5.6     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 27 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  LEU      2.9    11.3    +      -       -      -
     24A  ARG      3.6     1.3    -      -       -      -
     25A  GLU      3.2     0.2    -      -       -      -
     26A  ASP*     1.3    74.3    -      -       -      +
     28A  GLU*     1.3    59.6    +      -       -      +
     30A  ALA*     3.2     5.7    +      -       -      +
     31A  ALA*     2.9    33.1    +      -       -      +
     55B  LEU*     3.4    28.2    -      -       -      +
     76B  ASP*     5.4     3.1    +      -       -      -
    146R  TYR*     4.1    10.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 28 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  ARG*     2.6    51.6    +      -       -      +
     25A  GLU*     3.2    19.5    +      -       -      +
     27A  GLY*     1.3    75.3    -      -       -      +
     29A  LYS*     1.3    64.9    +      -       +      +
     31A  ALA*     3.6     2.6    +      -       -      +
     32A  ARG*     3.5    26.3    +      -       -      +
    144R  THR*     6.0     2.2    -      -       +      +
    146R  TYR*     3.8    35.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 29 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  GLU*     3.0    28.0    +      -       -      +
     26A  ASP*     3.8    14.5    +      -       -      +
     28A  GLU*     1.3    77.9    -      -       +      +
     30A  ALA*     1.3    64.3    +      -       -      +
     32A  ARG*     3.2    39.6    +      -       -      +
     33A  GLU*     3.5    17.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  ASP      2.9    17.8    +      -       -      +
     27A  GLY*     3.8     6.7    -      -       -      +
     29A  LYS*     1.3    76.5    -      -       -      +
     31A  ALA*     1.3    58.9    +      -       -      +
     33A  GLU*     2.9    43.4    +      -       -      +
     35A  LYS*     5.2    10.1    +      -       -      -
    197A  LYS*     5.5     2.2    -      -       -      +
     76B  ASP*     4.7    12.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  GLY      2.9    17.4    +      -       -      +
     28A  GLU      4.1     4.5    -      -       -      +
     29A  LYS      3.3     0.4    -      -       -      -
     30A  ALA*     1.3    75.6    -      -       -      +
     32A  ARG*     1.3    59.3    +      -       +      +
     33A  GLU      3.2     6.9    +      -       -      +
     35A  LYS*     6.2     0.9    -      -       -      +
    140R  MET*     5.7     2.9    -      -       -      +
    144R  THR*     5.0    17.5    +      -       +      +
    146R  TYR*     4.1    21.8    -      -       +      +
----------------------------------------------------------
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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