Contacts of the helix formed by residues 29 - 54 (chain I) in PDB entry 6KW5


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 ASN 29 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    426D  GLN*     4.0    26.2    -      -       -      +
    429D  ILE*     4.7    13.9    -      -       +      +
    430D  GLN*     4.6     5.9    +      -       -      +
    426H  GLN*     4.7     7.9    -      -       -      +
    429H  ILE*     3.8    21.3    -      -       +      +
    430H  GLN*     4.2    22.2    -      -       -      +
    433H  VAL*     5.1     5.1    -      -       +      +
     24I  ASP*     5.8     0.2    +      -       -      -
     27I  VAL*     2.9    25.0    +      -       +      +
     28I  SER*     1.3    84.8    -      -       -      +
     30I  LEU*     1.3    63.6    +      -       -      +
     31I  ALA      3.2     2.7    -      -       -      -
     32I  ASP*     3.0    24.5    +      -       +      +
     33I  LEU*     3.1    13.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 30 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429H  ILE*     3.8    33.7    -      -       +      -
     18I  ILE*     3.8    24.7    -      -       +      +
     19I  PRO*     3.6    23.1    -      -       +      +
     20I  THR*     5.4     2.0    -      -       -      -
     22I  LEU*     4.2    29.6    -      -       +      +
     24I  ASP*     5.2    12.5    +      -       -      +
     27I  VAL*     4.0     9.6    -      -       +      +
     29I  ASN*     1.3    74.0    -      -       -      +
     31I  ALA*     1.3    60.2    +      -       -      +
     33I  LEU*     3.9    11.5    -      -       +      +
     34I  LYS*     2.9    33.0    +      -       -      +
    409I  LEU*     4.5     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 31 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28I  SER      5.2     3.3    -      -       -      +
     29I  ASN      4.5     2.2    -      -       -      +
     30I  LEU*     1.3    79.3    -      -       -      +
     32I  ASP*     1.3    55.6    +      -       -      +
     34I  LYS*     3.3    16.4    -      -       +      +
     35I  LYS*     2.9    39.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 32 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429D  ILE*     3.3    34.3    -      -       +      +
    430D  GLN*     3.8    14.3    -      -       +      +
    433D  VAL*     3.2    36.8    -      -       -      +
    433H  VAL*     5.7     1.1    -      -       +      -
     28I  SER      5.3     2.0    -      -       -      +
     29I  ASN*     3.0    17.8    +      -       -      +
     31I  ALA*     1.3    76.3    -      -       -      +
     33I  LEU*     1.3    61.1    +      -       -      +
     35I  LYS*     3.2    17.1    +      -       -      +
     36I  LEU*     3.0    31.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 33 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429H  ILE*     4.7     8.1    -      -       +      -
    432H  LEU*     3.7    46.2    -      -       +      -
    433H  VAL*     4.3    12.4    -      -       +      +
    436H  THR*     3.9    21.5    -      -       -      +
     18I  ILE*     4.7    12.6    -      -       +      -
     29I  ASN      3.1    13.4    +      -       -      +
     30I  LEU*     3.9    24.0    -      -       +      +
     32I  ASP*     1.3    72.7    -      -       -      +
     34I  LYS*     1.3    59.6    +      -       -      +
     36I  LEU*     3.2    12.1    +      -       +      +
     37I  ILE*     2.9    49.0    +      -       +      +
    409I  LEU*     5.4     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 34 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30I  LEU*     2.9    22.3    +      -       -      +
     31I  ALA*     3.3    15.2    -      -       -      +
     33I  LEU*     1.3    77.0    -      -       -      +
     35I  LYS*     1.3    58.1    +      -       +      +
     37I  ILE*     3.1    10.8    +      -       -      +
     38I  GLU*     2.8    46.4    +      -       -      +
    200M  THR      5.8     2.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 35 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433D  VAL*     4.7     7.9    -      -       +      -
    437D  MET*     5.4    17.6    -      -       +      +
     31I  ALA*     2.9    26.7    +      -       -      +
     32I  ASP*     3.2    21.4    +      -       -      +
     34I  LYS*     1.3    75.0    -      -       +      +
     36I  LEU*     1.3    58.1    +      -       -      +
     38I  GLU*     3.3    21.4    +      -       -      +
     39I  MET*     2.9    31.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 36 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433D  VAL*     3.7    30.1    -      -       +      -
    436D  THR*     5.4     0.7    -      -       +      -
    433H  VAL*     3.8    41.1    -      -       +      +
    436H  THR*     4.3    18.7    -      -       +      +
    437H  MET*     3.9    25.8    -      -       -      -
    440H  LEU*     4.0    14.2    -      -       +      +
     32I  ASP      3.0    17.6    +      -       -      +
     33I  LEU*     3.5    14.1    -      -       +      +
     35I  LYS*     1.3    75.7    -      -       -      +
     37I  ILE*     1.3    58.3    +      -       -      +
     39I  MET*     3.3    16.0    -      -       +      +
     40I  ASP*     3.0    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 37 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432H  LEU*     6.1     1.1    -      -       +      -
    436H  THR*     5.6     5.4    -      -       +      +
     15I  ASP*     5.8     7.0    -      -       -      +
     18I  ILE*     4.7    19.1    -      -       +      -
     33I  LEU*     2.9    41.5    +      -       +      +
     34I  LYS*     3.1     9.2    +      -       -      +
     36I  LEU*     1.3    78.8    -      -       +      +
     38I  GLU*     1.3    60.1    +      -       -      +
     40I  ASP*     3.2     8.4    +      -       -      +
     41I  SER*     2.9    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 38 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34I  LYS*     2.8    43.6    +      -       -      +
     35I  LYS*     3.3    26.7    -      -       -      +
     37I  ILE*     1.3    76.0    -      -       -      +
     39I  MET*     1.3    62.3    +      -       -      +
     41I  SER*     3.8     8.3    -      -       -      -
     42I  ARG*     2.9    30.0    +      -       -      +
    287M  LYS*     6.5     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 39 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433D  VAL*     4.5     2.9    -      -       +      +
    436D  THR*     3.7    25.6    -      -       +      +
    437D  MET*     3.6    51.1    -      -       +      +
    440D  LEU*     3.7    31.8    -      -       +      +
    440H  LEU*     4.0    19.7    -      -       +      -
    444H  PHE*     5.3     0.2    -      -       -      -
     35I  LYS      2.9    22.7    +      -       -      +
     36I  LEU*     3.3    16.8    -      -       +      +
     38I  GLU*     1.3    77.8    -      -       -      +
     40I  ASP*     1.3    57.5    +      -       -      +
     42I  ARG*     3.4     7.4    +      -       -      +
     43I  LEU*     3.0    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 40 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289A  SER*     4.5     7.6    +      -       -      -
    436H  THR*     5.2     3.5    -      -       +      +
    439H  LYS*     2.3    33.6    +      -       -      -
    440H  LEU*     3.9    20.3    -      -       +      +
    443H  LYS*     2.5    37.6    +      -       -      +
     36I  LEU      3.0    13.8    +      -       -      +
     37I  ILE*     3.2    11.0    +      -       -      +
     39I  MET*     1.3    75.5    -      -       -      +
     41I  SER*     1.3    57.3    +      -       -      +
     43I  LEU*     3.4     1.8    +      -       -      +
     44I  ASP*     2.9    27.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 41 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289A  SER*     3.6    26.3    +      -       -      -
    290A  TRP*     4.5    20.9    -      -       -      +
     37I  ILE*     2.9    22.6    +      -       -      +
     38I  GLU*     3.8     9.7    -      -       -      -
     39I  MET      3.3     0.2    -      -       -      -
     40I  ASP*     1.3    77.3    -      -       -      +
     42I  ARG*     1.3    56.1    +      -       -      +
     44I  ASP*     3.5     1.7    +      -       -      +
     45I  LEU*     2.9    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 42 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440D  LEU*     5.2    17.3    -      -       +      +
    444D  PHE*     4.6    24.3    -      -       +      +
     38I  GLU      2.9    18.1    +      -       -      +
     39I  MET*     3.7     6.7    -      -       -      +
     41I  SER*     1.3    78.1    -      -       -      +
     43I  LEU*     1.3    61.4    +      -       -      +
     45I  LEU*     3.2    13.9    +      -       +      +
     46I  TYR*     3.0    22.7    +      -       -      +
    330M  LYS*     5.9     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 43 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440D  LEU*     4.2    16.6    -      -       +      +
    444D  PHE*     3.6    31.2    -      -       +      -
    440H  LEU*     4.2    22.7    -      -       +      +
    443H  LYS*     3.7    39.5    -      -       +      +
    444H  PHE*     4.9     8.3    -      -       +      -
    447H  LEU*     3.7    24.0    -      -       +      -
     39I  MET      3.0    17.0    +      -       -      +
     40I  ASP*     3.8     4.5    -      -       -      +
     42I  ARG*     1.3    76.9    -      -       -      +
     44I  ASP*     1.3    57.7    +      -       -      +
     46I  TYR*     3.3     3.5    +      -       -      +
     47I  LEU*     3.0    35.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 44 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287A  TYR*     3.0    53.7    -      -       -      +
    288A  ASN      3.5     0.2    +      -       -      -
    289A  SER*     2.8    31.4    +      -       -      +
    290A  TRP*     4.3     4.3    -      -       +      -
    443H  LYS*     4.0    16.0    +      -       -      +
     40I  ASP*     2.9    18.4    +      -       -      +
     41I  SER      3.8     2.5    -      -       -      +
     43I  LEU*     1.3    73.0    -      -       -      +
     45I  LEU*     1.3    60.5    +      -       -      +
     47I  LEU*     3.4     7.2    +      -       -      +
     48I  THR*     2.8    34.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 45 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290A  TRP*     4.1    23.7    -      -       +      -
     41I  SER      2.9    15.5    +      -       -      +
     42I  ARG*     3.2    17.7    +      -       +      +
     44I  ASP*     1.3    76.1    -      -       -      +
     46I  TYR*     1.3    61.8    +      -       -      +
     48I  THR*     3.9     1.0    -      -       -      -
     49I  ARG*     3.0    25.9    +      -       +      +
    290M  SER*     5.4     4.9    -      -       -      +
    294M  SER*     3.9    30.3    -      -       -      +
    297M  LEU*     3.7    25.0    -      -       +      +
    331M  GLU*     5.8     8.1    -      -       +      -
    335M  ILE*     4.4    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 46 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    444D  PHE*     3.5    31.6    -      +       +      -
    447D  LEU*     3.3    44.4    -      -       +      +
    448D  CYS*     5.1     9.9    -      -       -      -
    451D  GLU*     3.0    22.1    +      -       -      +
    447H  LEU*     3.7    22.9    -      -       +      -
    450H  LEU*     5.0    12.1    -      -       +      -
    454H  LEU*     4.9     4.3    -      -       -      +
     42I  ARG      3.0     9.8    +      -       -      +
     43I  LEU      3.5     7.6    -      -       -      +
     45I  LEU*     1.3    76.3    -      -       -      +
     47I  LEU*     1.3    65.5    +      -       +      +
     49I  ARG*     3.3    35.0    +      -       -      +
     50I  ARG*     3.0    27.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 47 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287A  TYR*     4.5    21.3    -      -       +      -
    443H  LYS*     4.3    36.3    -      -       +      +
    446H  LYS*     4.6    21.8    -      -       +      -
    447H  LEU*     4.5    28.7    -      -       +      +
    450H  LEU*     4.6    16.6    -      -       +      -
     43I  LEU*     3.0    21.0    +      -       +      +
     44I  ASP*     3.8     8.1    -      -       -      +
     46I  TYR*     1.3    77.8    -      -       +      +
     48I  THR*     1.3    56.8    +      -       -      +
     50I  ARG*     3.3     3.6    +      -       -      +
     51I  ARG*     2.9    39.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 48 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287A  TYR*     2.7    30.2    +      -       +      +
    288A  ASN*     4.2     9.0    -      -       -      +
    290A  TRP*     4.0    18.3    -      -       +      -
     44I  ASP*     2.8    18.2    +      -       -      -
     45I  LEU      3.9     2.7    -      -       -      -
     47I  LEU*     1.3    72.9    -      -       -      +
     49I  ARG*     1.3    60.6    +      -       -      +
     51I  ARG*     3.4     7.2    +      -       +      +
     52I  LEU*     3.0    29.8    +      -       +      +
    297M  LEU*     4.7    20.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 49 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451D  GLU*     3.2    34.4    +      -       -      -
     45I  LEU*     3.0    18.3    +      -       +      +
     46I  TYR*     3.3    32.5    +      -       -      +
     48I  THR*     1.3    77.8    -      -       -      +
     50I  ARG*     1.3    65.2    +      -       -      +
     52I  LEU*     3.3     3.3    +      -       -      +
     53I  ASP*     2.9    44.0    +      -       -      +
    297M  LEU*     4.2    20.7    -      -       +      +
    334M  LEU*     3.4    34.9    -      -       -      +
    335M  ILE*     4.0    27.6    -      -       +      +
    338M  ALA*     4.7    13.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 50 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451D  GLU*     3.8    26.2    +      -       -      +
    454D  LEU*     4.9     4.6    -      -       -      +
    458D  LYS*     5.0     7.7    -      -       -      +
    450H  LEU*     3.7    32.5    -      -       +      -
    454H  LEU*     3.8    38.7    -      -       +      +
     46I  TYR*     3.0    24.5    +      -       +      +
     47I  LEU*     3.9     3.8    -      -       -      +
     48I  THR      3.3     0.4    -      -       -      -
     49I  ARG*     1.3    82.8    -      -       -      +
     51I  ARG*     1.3    60.8    +      -       +      +
     53I  ASP*     3.0    48.4    +      -       -      +
     54I  THR*     2.9    37.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 51 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287A  TYR*     4.2    23.1    -      -       +      -
    446H  LYS*     3.1    43.0    -      -       -      +
     47I  LEU*     2.9    27.3    +      -       +      +
     48I  THR*     3.7     8.7    -      -       +      +
     50I  ARG*     1.3    77.5    -      -       -      +
     52I  LEU*     1.3    60.2    +      -       -      +
     54I  THR*     3.3    22.9    -      -       -      +
     55I  SER*     5.9     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 52 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48I  THR*     3.0    18.5    +      -       +      +
     49I  ARG*     3.7     5.6    -      -       -      +
     50I  ARG      3.2     0.2    -      -       -      -
     51I  ARG*     1.3    75.8    -      -       -      +
     53I  ASP*     1.3    61.9    +      -       -      +
     54I  THR      3.4     0.9    +      -       -      -
     55I  SER*     3.9     5.5    +      -       -      -
     56I  ILE*     3.3    24.0    -      -       +      +
    297M  LEU*     4.1    20.2    -      -       +      +
    299M  GLU*     3.5    35.4    -      -       +      +
    338M  ALA*     3.4    37.9    -      -       +      +
    339M  THR*     4.5     5.8    -      -       +      +
    342M  ASN*     3.7    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 53 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    458D  LYS*     4.8     8.9    +      -       -      -
     49I  ARG*     2.9    30.2    +      -       -      +
     50I  ARG*     3.0    32.6    +      -       -      +
     52I  LEU*     1.3    75.1    -      -       -      +
     54I  THR*     1.3    62.9    +      -       -      +
     55I  SER      3.2     2.7    -      -       -      -
     56I  ILE*     3.2    38.6    +      -       -      +
    337M  GLU      5.8     0.2    -      -       -      -
    338M  ALA*     4.0    21.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 54 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454H  LEU*     6.1     1.3    -      -       -      +
    457H  GLU*     5.4     3.3    -      -       -      +
     50I  ARG*     2.9    22.2    +      -       -      +
     51I  ARG*     3.3    26.7    -      -       -      +
     53I  ASP*     1.3    78.1    -      -       -      +
     55I  SER*     1.3    62.7    +      -       -      +
     56I  ILE      3.4     0.2    -      -       -      -
----------------------------------------------------------
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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