Contacts of the helix formed by residues 13 - 54 (chain A) in PDB entry 2GUS


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 PHE 13 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  GLN*     1.3    76.5    +      -       +      +
     15A  THR*     3.3    11.0    +      -       -      +
     16A  PHE*     3.1    41.0    +      +       -      +
     17A  ASN*     2.9    41.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 14 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  PHE*     1.3    90.1    -      -       +      +
     15A  THR*     1.3    63.9    +      -       -      +
     17A  ASN*     3.8     9.9    +      -       +      +
     18A  ALA*     3.2    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 15 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  PHE      4.4     9.1    +      -       -      +
     14A  GLN*     1.3    74.5    -      -       -      +
     16A  PHE*     1.3    71.8    +      -       -      +
     18A  ALA*     3.5     6.2    +      -       -      +
     19A  LYS*     3.0    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 16 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  PHE*     3.1    43.3    +      +       -      +
     15A  THR*     1.3    81.4    +      -       -      +
     17A  ASN*     1.3    56.7    +      -       -      +
     19A  LYS*     3.1    28.9    +      -       +      +
     20A  PHE*     2.7    59.9    +      +       +      +
----------------------------------------------------------
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Residues in contact with ASN 17 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  PHE*     2.9    33.1    +      -       +      +
     14A  GLN*     3.8    12.4    +      -       +      +
     15A  THR      3.3     0.4    -      -       -      -
     16A  PHE*     1.3    82.9    -      -       -      +
     18A  ALA*     1.3    57.7    +      -       -      +
     20A  PHE*     3.2    11.9    +      -       -      +
     21A  ASP*     2.8    51.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 18 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  GLN      3.2    16.8    +      -       -      +
     15A  THR*     3.8     6.3    -      -       -      +
     17A  ASN*     1.3    76.1    -      -       -      +
     19A  LYS*     1.3    60.8    +      -       -      +
     21A  ASP*     3.4    10.4    +      -       -      +
     22A  GLN*     3.1    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 19 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  THR      3.0    13.2    +      -       -      +
     16A  PHE*     3.3    34.2    -      -       +      +
     18A  ALA*     1.3    72.9    -      -       -      +
     20A  PHE*     1.3    60.6    +      -       -      +
     22A  GLN*     3.4     7.7    +      -       -      +
     23A  PHE*     3.0    28.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 20 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  PHE*     2.7    41.0    +      +       +      +
     17A  ASN*     3.5    16.2    -      -       -      +
     19A  LYS*     1.3    73.2    -      -       -      +
     21A  ASP*     1.3    72.2    +      -       -      +
     23A  PHE*     3.2    23.7    +      +       -      +
     24A  SER*     2.8    43.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 21 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  ASN*     2.8    37.6    +      -       -      +
     18A  ALA*     3.7     9.3    -      -       -      +
     19A  LYS      3.4     0.4    -      -       -      -
     20A  PHE*     1.3    86.9    -      -       -      +
     22A  GLN*     1.3    63.4    +      -       -      +
     24A  SER*     3.4     6.3    +      -       -      -
     25A  ASN*     3.0    32.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 22 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  ALA      3.1    13.5    +      -       -      +
     19A  LYS*     3.6     9.6    -      -       -      +
     21A  ASP*     1.3    77.2    -      -       -      +
     23A  PHE*     1.3    62.2    +      -       -      +
     25A  ASN*     3.1    15.8    +      -       -      +
     26A  ASP*     2.9    55.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 23 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  LYS*     3.0    15.4    +      -       +      +
     20A  PHE*     3.4    31.0    -      +       -      +
     22A  GLN*     1.3    76.7    -      -       -      +
     24A  SER*     1.3    59.9    +      -       -      +
     26A  ASP*     3.1    13.0    +      -       +      +
     27A  MET*     2.8    65.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 24 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  PHE*     2.8    38.8    +      -       -      -
     21A  ASP*     3.6     8.3    -      -       -      -
     23A  PHE*     1.3    77.4    -      -       -      +
     25A  ASN*     1.3    58.8    +      -       -      +
     27A  MET*     3.3     4.0    +      -       -      -
     28A  ASN*     2.7    50.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 25 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ASP*     3.0    24.1    +      -       -      +
     22A  GLN*     3.1    20.3    +      -       -      +
     24A  SER*     1.3    76.8    -      -       -      +
     26A  ASP*     1.3    59.5    +      -       -      +
     28A  ASN*     3.3     5.1    +      -       -      +
     29A  ALA*     2.9    29.8    +      -       -      +
----------------------------------------------------------
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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  GLN*     2.9    45.8    +      -       -      +
     23A  PHE*     3.1    13.4    +      -       +      +
     25A  ASN*     1.3    76.9    -      -       -      +
     27A  MET*     1.3    62.1    +      -       +      +
     29A  ALA*     3.4     6.7    +      -       -      +
     30A  PHE*     3.0    27.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 27 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  PHE*     2.8    56.3    +      -       +      +
     24A  SER*     3.8     6.5    -      -       -      +
     26A  ASP*     1.3    76.5    -      -       -      +
     28A  ASN*     1.3    64.8    +      -       -      +
     30A  PHE*     3.3    33.9    +      -       +      +
     31A  ARG*     2.9    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 28 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  SER*     2.7    43.6    +      -       -      +
     25A  ASN*     4.0     4.9    -      -       -      +
     27A  MET*     1.3    82.3    -      -       -      +
     29A  ALA*     1.3    55.9    +      -       -      +
     31A  ARG*     3.2    22.8    +      -       -      +
     32A  SER*     3.0    32.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 29 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  ASN      2.9    13.9    +      -       -      +
     26A  ASP*     3.6    10.5    -      -       -      +
     28A  ASN*     1.3    73.5    -      -       -      +
     30A  PHE*     1.3    59.8    +      -       -      +
     32A  SER*     3.2     7.4    +      -       -      -
     33A  ASP*     2.9    40.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  ASP      3.0    14.7    +      -       -      +
     27A  MET*     3.3    39.2    +      -       +      +
     29A  ALA*     1.3    76.8    -      -       -      +
     31A  ARG*     1.3    62.6    +      -       -      +
     33A  ASP*     3.1    11.5    +      -       +      +
     34A  PHE*     2.8    31.6    +      +       +      +
----------------------------------------------------------
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Residues in contact with ARG 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  MET      2.9    16.3    +      -       -      +
     28A  ASN*     3.2    25.3    +      -       -      +
     30A  PHE*     1.3    73.1    -      -       -      +
     32A  SER*     1.3    56.9    +      -       -      +
     34A  PHE*     3.2    10.3    +      -       +      +
     35A  GLN*     2.9    50.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ASN      3.0    13.7    +      -       -      -
     29A  ALA*     3.5    11.2    -      -       -      -
     30A  PHE      3.2     0.2    -      -       -      -
     31A  ARG*     1.3    74.4    -      -       -      +
     33A  ASP*     1.3    61.4    +      -       -      +
     35A  GLN*     3.2    10.1    +      -       -      +
     36A  ALA*     3.0    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  ALA*     2.9    25.2    +      -       -      +
     30A  PHE*     3.1    13.8    +      -       +      +
     32A  SER*     1.3    78.9    -      -       -      +
     34A  PHE*     1.3    62.9    +      -       -      +
     36A  ALA*     3.3     8.6    +      -       -      +
     37A  PHE*     3.0    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  PHE*     2.8    24.0    +      +       +      +
     31A  ARG*     3.5    11.7    -      -       +      +
     33A  ASP*     1.3    77.4    -      -       -      +
     35A  GLN*     1.3    69.9    +      -       -      +
     37A  PHE*     3.0    32.1    +      +       -      +
     38A  LYS*     2.7    69.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ARG*     2.9    36.4    +      -       +      +
     32A  SER*     3.2    11.9    +      -       -      +
     34A  PHE*     1.3    99.5    -      -       -      +
     36A  ALA*     1.3    62.6    +      -       -      +
     38A  LYS*     3.3    15.3    +      -       -      +
     39A  ASP*     3.1    31.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  SER      3.0    13.8    +      -       -      +
     33A  ASP*     3.5    11.7    -      -       -      +
     35A  GLN*     1.3    75.0    -      -       -      +
     37A  PHE*     1.3    63.6    +      -       -      +
     39A  ASP*     3.3     9.1    +      -       -      +
     40A  ASP*     3.0    32.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  ASP      3.0    13.5    +      -       -      +
     34A  PHE*     3.4    33.7    -      +       +      +
     36A  ALA*     1.3    78.3    -      -       -      +
     38A  LYS*     1.3    55.3    +      -       -      +
     40A  ASP*     3.0    13.5    +      -       +      +
     41A  PHE*     2.7    65.7    +      +       +      +
----------------------------------------------------------
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Residues in contact with LYS 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  PHE*     2.7    48.6    +      -       +      +
     35A  GLN*     3.6    18.1    -      -       -      +
     36A  ALA      3.3     0.2    -      -       -      -
     37A  PHE*     1.3    81.4    -      -       -      +
     39A  ASP*     1.3    60.8    +      -       -      +
     41A  PHE*     3.3     7.1    +      -       +      +
     42A  ALA*     2.9    28.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  GLN*     3.1    21.0    +      -       -      +
     36A  ALA*     3.6     9.5    -      -       -      +
     38A  LYS*     1.3    77.2    -      -       -      +
     40A  ASP*     1.3    65.8    +      -       -      +
     42A  ALA*     3.2     7.8    +      -       -      +
     43A  ARG*     3.0    41.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  ALA*     3.0    24.9    +      -       -      +
     37A  PHE*     3.0    17.4    +      -       +      +
     39A  ASP*     1.3    75.0    -      -       -      +
     41A  PHE*     1.3    58.4    +      -       -      +
     43A  ARG*     2.7    40.2    +      -       -      +
     44A  PHE*     3.0    28.1    +      -       -      +
     47A  ARG*     5.1     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  PHE*     2.7    45.5    +      +       +      +
     38A  LYS*     3.6     7.4    -      -       +      +
     40A  ASP*     1.3    74.2    -      -       -      +
     42A  ALA*     1.3    63.8    +      -       -      +
     44A  PHE*     3.2    30.9    +      +       -      +
     45A  ASN*     2.8    57.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  LYS*     2.9    18.2    +      -       +      +
     39A  ASP*     3.2     9.4    +      -       -      +
     41A  PHE*     1.3    80.7    -      -       -      +
     43A  ARG*     1.3    63.4    +      -       +      +
     45A  ASN*     3.4     7.4    +      -       -      +
     46A  GLN*     3.1    39.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  ASP*     3.0    31.5    +      -       -      +
     40A  ASP*     2.7    43.2    +      -       -      +
     41A  PHE      3.2     0.2    -      -       -      -
     42A  ALA*     1.3    77.0    -      -       +      +
     44A  PHE*     1.3    65.8    +      -       -      +
     46A  GLN*     3.4    15.0    +      -       -      +
     47A  ARG*     3.0    39.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  ASP      3.0    13.6    +      -       -      +
     41A  PHE*     3.5    38.6    -      +       +      +
     43A  ARG*     1.3    76.1    -      -       -      +
     45A  ASN*     1.3    58.7    +      -       -      +
     47A  ARG*     3.0    31.3    +      -       +      +
     48A  PHE*     2.7    59.8    +      +       +      +
----------------------------------------------------------
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Residues in contact with ASN 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  PHE*     2.8    46.7    +      -       +      +
     42A  ALA*     3.7     7.6    -      -       -      +
     44A  PHE*     1.3    79.2    -      -       -      +
     46A  GLN*     1.3    57.7    +      -       +      +
     48A  PHE*     3.3    10.7    +      -       -      +
     49A  ASP*     2.9    42.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  ALA*     3.1    28.3    +      -       -      +
     43A  ARG*     3.6    14.5    -      -       -      +
     44A  PHE      3.2     0.2    -      -       -      -
     45A  ASN*     1.3    78.4    -      -       +      +
     47A  ARG*     1.3    63.0    +      -       +      +
     49A  ASP*     3.3     7.5    +      -       -      +
     50A  ASN*     3.1    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  ASP      5.1     0.6    +      -       -      -
     43A  ARG*     3.0    35.2    +      -       +      +
     44A  PHE*     3.0    41.9    +      -       +      +
     46A  GLN*     1.3    72.7    -      -       +      +
     48A  PHE*     1.3    65.0    +      -       -      +
     50A  ASN*     3.3    10.3    +      -       -      +
     51A  PHE*     3.0    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  PHE*     2.7    45.0    +      +       +      +
     45A  ASN*     3.6    11.0    -      -       -      +
     47A  ARG*     1.3    73.1    -      -       -      +
     49A  ASP*     1.3    70.9    +      -       -      +
     51A  PHE*     3.1    23.8    +      +       -      +
     52A  ALA*     2.8    47.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ASN*     2.9    31.4    +      -       -      +
     46A  GLN*     3.3     8.4    +      -       -      +
     48A  PHE*     1.3    89.7    -      -       -      +
     50A  ASN*     1.3    53.7    +      -       -      +
     52A  ALA*     4.2     3.5    -      -       -      +
     53A  THR*     2.7    44.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  GLN*     3.1    22.4    +      -       -      +
     47A  ARG*     3.6    12.4    -      -       -      +
     48A  PHE      3.1     0.2    -      -       -      -
     49A  ASP*     1.3    78.3    +      -       -      +
     51A  PHE*     1.3    62.9    +      -       -      +
     53A  THR*     2.8    18.5    +      -       -      +
     54A  LYS*     3.3    21.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  ARG      3.0    16.9    +      -       -      +
     48A  PHE*     3.5    24.9    -      +       -      +
     50A  ASN*     1.3    77.4    -      -       -      +
     52A  ALA*     1.3    62.0    +      -       +      +
     54A  LYS*     3.1    50.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  PHE*     2.8    45.5    +      -       +      +
     49A  ASP*     4.2     4.7    -      -       -      +
     51A  PHE*     1.3    75.5    -      -       +      +
     53A  THR*     1.3    66.8    +      -       +      +
     54A  LYS      3.4     5.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  ASP*     2.7    26.9    +      -       +      +
     50A  ASN*     2.8    19.6    +      -       -      +
     52A  ALA*     1.3    78.8    -      -       +      +
     54A  LYS*     1.3    59.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  ASN*     3.3    17.6    +      -       +      +
     51A  PHE*     3.1    44.7    +      -       +      +
     52A  ALA      3.8     5.4    -      -       -      +
     53A  THR*     1.3    79.9    -      -       -      +
----------------------------------------------------------
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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