Contacts of the helix formed by residues 58 - 80 (chain A) in PDB entry 2G2Y


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 LYS 58 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  GLU*     3.3    24.7    +      -       +      +
     55A  GLU*     2.6    46.7    +      -       -      +
     57A  ASN*     1.3    76.0    -      -       -      +
     59A  THR*     1.3    53.7    +      -       -      +
     60A  TRP*     3.3    41.8    -      -       +      -
     61A  GLN*     2.7    32.4    +      -       -      +
     62A  THR      2.8    13.2    +      -       -      -
    122A  GLN*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  GLN*     2.5    41.8    +      -       -      +
     57A  ASN      3.6     1.6    +      -       -      -
     58A  LYS*     1.3    73.4    -      -       -      +
     60A  TRP*     1.3    62.6    +      -       +      +
     62A  THR*     3.4     1.6    -      -       -      -
     63A  GLN*     2.9    44.5    +      -       -      +
    118A  GLY*     3.6    19.7    -      -       -      +
    121A  MET*     4.8     5.4    -      -       +      +
    122A  GLN*     3.3    26.3    +      -       +      +
    198A  VAL*     4.6    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  TYR*     4.4     1.0    +      -       -      -
     58A  LYS*     3.7    45.1    -      -       +      -
     59A  THR*     1.3    87.5    -      -       +      +
     61A  GLN*     1.3    80.9    +      -       +      +
     64A  PRO*     3.2    19.1    -      -       -      +
    115A  GLU*     3.6    34.1    -      -       +      +
    118A  GLY*     3.8     8.1    -      -       -      -
    119A  LYS*     3.6    38.7    -      -       +      +
    122A  GLN*     3.4    40.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  TYR*     3.5    32.3    +      -       +      +
     44A  LEU*     4.4     3.5    -      -       -      +
     47A  LEU*     4.0    17.1    -      -       +      +
     55A  GLU*     2.8    52.5    +      -       -      +
     56A  LEU      4.4     1.1    -      -       -      -
     58A  LYS*     2.7    20.7    +      -       -      +
     60A  TRP*     1.3   100.5    -      -       +      +
     62A  THR*     1.3    64.1    +      -       -      +
     63A  GLN      3.2     1.3    -      -       -      -
     64A  PRO*     3.4     3.2    -      -       -      +
     65A  ALA*     3.1    23.8    +      -       -      +
    115A  GLU*     5.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  GLN*     3.3    38.2    +      -       +      +
     14A  GLN*     3.5    24.5    -      -       +      +
     56A  LEU      2.7    25.2    +      -       -      +
     57A  ASN*     3.2    13.0    -      -       -      -
     58A  LYS      2.8    17.0    +      -       -      -
     59A  THR*     3.4     2.2    -      -       -      -
     61A  GLN*     1.3    77.0    -      -       -      +
     63A  GLN*     1.3    57.8    +      -       -      +
     65A  ALA*     3.2     5.4    +      -       -      +
     66A  LEU*     2.9    36.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  GLN*     3.7    11.9    -      -       +      +
     59A  THR*     2.9    28.7    +      -       -      +
     62A  THR*     1.3    77.3    -      -       -      +
     64A  PRO*     1.3    66.8    -      -       +      +
     66A  LEU*     3.3     1.4    +      -       -      +
     67A  LEU*     2.8    31.0    +      -       -      +
     93A  LEU*     3.6    29.9    -      -       +      +
    114A  VAL*     3.4    22.7    -      -       +      +
    117A  ARG*     2.8    32.2    +      -       -      +
    118A  GLY*     3.3    18.6    -      -       -      -
    121A  MET*     3.5    17.4    -      -       -      +
   1001A  MLI      3.8     4.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  LEU*     4.0    22.4    -      -       +      -
     42A  TYR*     4.3     7.6    -      -       -      +
     44A  LEU*     3.5     2.2    -      -       +      +
     60A  TRP      3.2    25.4    -      -       -      +
     61A  GLN*     3.4    12.3    -      -       -      +
     63A  GLN*     1.3    98.1    -      -       +      +
     65A  ALA*     1.3    56.4    +      -       -      -
     67A  LEU*     4.3     2.0    -      -       +      -
     68A  THR*     2.7    33.8    +      -       -      -
    111A  VAL*     4.1    13.0    -      -       +      +
    114A  VAL*     3.5    19.0    -      -       +      -
    115A  GLU*     4.2    11.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  GLN*     5.8     0.2    -      -       +      -
     18A  MET*     4.1     7.3    -      -       +      +
     33A  PHE*     4.0     4.9    -      -       -      -
     44A  LEU*     3.9    21.3    -      -       +      +
     47A  LEU*     5.3     0.2    -      -       +      -
     48A  THR*     4.0     9.0    -      -       +      -
     56A  LEU*     3.9    25.1    -      -       +      -
     61A  GLN      3.1    20.6    +      -       -      +
     62A  THR      3.4     4.9    -      -       -      +
     63A  GLN      3.1     0.2    -      -       -      -
     64A  PRO*     1.3    77.1    -      -       -      +
     66A  LEU*     1.3    58.5    +      -       +      +
     68A  THR*     3.8     1.9    -      -       -      -
     69A  ALA*     3.0    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  PRO*     4.9     4.9    -      -       +      +
     10A  GLY*     3.3    35.4    -      -       -      +
     11A  GLN*     3.7    12.3    -      -       +      +
     13A  SER*     4.2     2.5    -      -       -      -
     14A  GLN*     3.3    44.6    -      -       +      +
     18A  MET*     4.1     4.5    -      -       +      -
     62A  THR*     2.9    21.8    +      -       +      +
     63A  GLN      3.9     1.8    -      -       -      +
     65A  ALA*     1.3    75.1    -      -       -      +
     67A  LEU*     1.3    66.1    +      -       -      +
     69A  ALA*     3.2     4.0    +      -       -      +
     70A  SER*     3.0    27.5    +      -       -      +
     93A  LEU*     4.0    14.4    -      -       +      -
    277A  PRO*     3.8    22.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  GLN      2.8    18.7    +      -       -      +
     64A  PRO*     3.9     7.0    -      -       +      +
     66A  LEU*     1.3    76.3    -      -       -      +
     68A  THR*     1.3    58.2    +      -       -      +
     70A  SER*     3.4     0.5    +      -       -      -
     71A  VAL*     3.0    42.6    +      -       +      +
     93A  LEU*     3.9     5.2    -      -       +      +
     96A  TYR*     3.5    35.2    -      -       +      +
     97A  SER*     3.2    28.7    -      -       -      +
    100A  VAL*     4.5     3.6    -      -       +      -
    107A  PHE*     4.9     5.8    -      -       +      -
    110A  ALA*     4.2    16.4    -      -       +      -
    111A  VAL*     5.2     4.5    -      -       +      -
    114A  VAL*     4.1    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  THR*     4.0     2.8    -      -       +      +
     33A  PHE*     3.5    45.1    -      -       +      -
     36A  ALA*     3.4    17.5    -      -       +      +
     44A  LEU*     3.3    12.1    -      -       -      +
     64A  PRO      2.7    22.3    +      -       -      -
     65A  ALA      3.8     4.0    -      -       -      -
     67A  LEU*     1.3    73.4    -      -       -      +
     69A  ALA*     1.3    68.0    +      -       -      +
     71A  VAL*     3.8     1.0    -      -       -      +
     72A  ALA*     2.9    23.7    +      -       -      +
    107A  PHE*     4.0    15.3    -      -       +      -
    111A  VAL*     3.9     9.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  MET*     4.5     8.3    -      -       +      -
     19A  LEU*     3.6    17.9    -      -       +      +
     33A  PHE*     3.6    19.6    -      -       +      -
     65A  ALA      3.0    18.3    +      -       -      +
     66A  LEU*     3.2     7.8    +      -       -      +
     68A  THR*     1.3    77.2    -      -       -      +
     70A  SER*     1.3    61.7    +      -       -      +
     72A  ALA*     3.5     2.4    -      -       -      +
     73A  LEU*     3.1    29.6    +      -       -      +
    277A  PRO*     4.2    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  PHE*     3.8    19.0    -      -       -      +
      9A  PRO*     4.0    10.9    +      -       -      +
     66A  LEU      3.0    17.5    +      -       -      -
     67A  LEU      3.8     3.8    -      -       -      -
     69A  ALA*     1.3    74.0    -      -       -      +
     71A  VAL*     1.3    62.3    +      -       -      +
     73A  LEU*     3.3     1.4    +      -       -      -
     74A  TYR*     2.9    26.2    +      -       -      +
     97A  SER*     3.9    12.0    +      -       -      -
    275A  VAL*     2.7    36.0    +      -       -      +
    276A  GLY*     3.7     8.5    -      -       -      -
    277A  PRO*     4.7     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  THR*     4.3     1.8    -      -       +      -
     67A  LEU*     3.0    36.7    +      -       +      +
     68A  THR      3.9     2.9    -      -       -      +
     70A  SER*     1.3    76.9    -      -       -      +
     72A  ALA*     1.3    58.6    +      -       -      +
     74A  TYR*     3.2     8.3    +      -       +      +
     75A  ARG*     2.8    54.3    +      -       +      +
     97A  SER*     4.7     1.3    -      -       -      +
    100A  VAL*     3.7    26.2    -      -       +      -
    101A  CYS*     4.3     9.4    -      -       -      -
    107A  PHE*     3.9    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  LEU*     4.7     1.3    -      -       +      -
     28A  ILE*     4.6     1.0    -      -       -      +
     29A  VAL*     4.1    28.9    -      -       +      +
     32A  THR*     4.0    27.3    -      -       +      +
     33A  PHE*     4.4     4.0    -      -       +      -
     68A  THR      2.9    19.1    +      -       -      +
     69A  ALA*     3.5     5.2    -      -       -      +
     71A  VAL*     1.3    76.3    -      -       -      +
     73A  LEU*     1.3    63.2    +      -       -      +
     75A  ARG*     3.1     4.0    +      -       -      +
     76A  VAL*     2.9    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  LEU*     3.6    22.0    -      -       +      -
     22A  MET*     3.8    30.3    -      -       +      -
     29A  VAL*     5.4     0.2    -      -       +      -
     69A  ALA      3.1    14.1    +      -       -      +
     70A  SER      3.6     6.1    -      -       -      +
     72A  ALA*     1.3    73.9    -      -       -      +
     74A  TYR*     1.3    66.6    +      -       -      +
     76A  VAL*     3.0     7.0    +      -       +      +
     77A  TRP*     3.0    21.2    +      -       -      +
    275A  VAL*     3.7    10.3    -      -       +      -
    276A  GLY*     3.3    42.0    -      -       -      +
    297A  LEU      3.6    24.7    -      -       -      +
    298A  ASN*     3.9     9.0    -      -       +      -
    303A  MET*     4.0     6.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  PHE*     3.7    37.2    -      +       -      -
      8A  PHE*     4.7     1.8    -      +       -      -
     70A  SER      2.9    10.1    +      -       -      +
     71A  VAL*     3.4     9.0    -      -       +      +
     73A  LEU*     1.3    75.3    -      -       -      +
     75A  ARG*     1.3    68.8    +      -       +      +
     77A  TRP*     3.1    10.4    +      +       -      +
     78A  GLN*     2.9    60.3    +      -       +      +
     84A  ALA*     5.1     5.9    -      -       -      +
     85A  PRO*     4.5     9.4    -      -       +      +
     88A  MET*     3.9    12.3    -      -       +      +
    101A  CYS*     3.4    59.8    +      -       +      -
    225A  THR*     5.7     0.5    +      -       -      -
    226A  VAL*     5.3     1.7    -      -       -      +
    275A  VAL*     3.7     6.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ILE*     3.8    25.5    -      -       +      +
     32A  THR*     3.3    28.0    +      -       -      +
     35A  GLU*     3.1    34.8    +      -       -      -
     71A  VAL*     2.8    31.0    +      -       +      +
     72A  ALA*     3.1     6.7    +      -       -      +
     74A  TYR*     1.3    84.1    -      -       +      +
     76A  VAL*     1.3    56.9    +      -       -      +
     78A  GLN*     3.4     7.8    +      -       -      +
     79A  GLN*     2.9    31.8    +      -       -      +
    100A  VAL*     5.9     0.4    -      -       -      +
    107A  PHE*     3.7    31.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  MET*     4.4     6.3    -      -       +      -
     26A  TYR*     3.8    44.4    -      -       +      -
     28A  ILE*     3.6    23.6    -      -       +      -
     29A  VAL*     4.0    11.2    -      -       +      -
     72A  ALA      2.9    18.9    +      -       -      +
     73A  LEU*     3.0     7.6    +      -       -      +
     75A  ARG*     1.3    73.7    -      -       -      +
     77A  TRP*     1.3    66.9    +      -       -      +
     79A  GLN*     3.2     3.5    +      -       -      +
     80A  GLN*     2.9    25.6    +      -       +      +
    303A  MET*     3.8    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  PHE*     4.0    17.9    -      +       -      -
      6A  PHE*     3.5    29.2    -      +       +      -
     73A  LEU      3.0    11.0    +      -       -      +
     74A  TYR*     3.2    15.5    -      +       -      +
     76A  VAL*     1.3    79.3    -      -       -      +
     78A  GLN*     1.3    68.1    +      -       +      +
     80A  GLN*     3.3     5.9    +      -       -      +
     81A  GLY      3.4     0.3    +      -       -      -
     82A  GLY*     2.8    46.1    +      -       -      -
     83A  LYS      2.7    31.6    +      -       -      -
     85A  PRO*     5.4     0.4    -      -       +      -
    273A  TYR*     4.9     8.1    -      +       -      -
    297A  LEU*     4.2    12.6    -      -       +      -
    303A  MET*     3.9    20.2    -      -       +      -
    306A  ALA*     3.8    40.2    -      -       +      -
    307A  LEU*     3.6    28.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  TYR*     2.9    55.5    +      -       +      +
     75A  ARG*     3.8     7.0    -      -       -      +
     77A  TRP*     1.3    81.7    -      -       +      +
     79A  GLN*     1.3    64.7    +      -       -      +
     81A  GLY*     2.9    15.8    +      -       -      -
     82A  GLY      4.4    10.0    +      -       -      +
     84A  ALA*     5.8     6.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  TYR*     4.3    11.3    -      -       -      +
     27A  PRO*     5.8     1.6    -      -       -      +
     28A  ILE*     3.7    43.5    +      -       +      +
     31A  GLU*     5.3     1.6    +      -       -      -
     75A  ARG      2.9    19.1    +      -       -      +
     76A  VAL*     3.2     3.6    +      -       -      +
     78A  GLN*     1.3    77.4    -      -       -      +
     80A  GLN*     1.3    74.9    +      -       -      +
     81A  GLY*     3.2     3.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  TYR*     3.6    34.4    +      -       +      -
     76A  VAL*     2.9    20.3    +      -       +      +
     77A  TRP      3.3     1.8    +      -       -      +
     78A  GLN      3.1     0.4    -      -       -      -
     79A  GLN*     1.3    97.7    -      -       +      +
     81A  GLY*     1.3    58.8    +      -       -      +
     82A  GLY      3.4     2.0    +      -       -      -
    307A  LEU*     3.3    36.2    -      -       +      +
----------------------------------------------------------
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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