Contacts of the helix formed by residues 74 - 97 (chain C) in PDB entry 5B2G


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 PRO 74 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  ARG*     4.8     9.6    -      -       -      +
     67C  TYR*     6.1     7.0    -      -       +      +
     72C  ALA      4.1     5.6    -      -       -      +
     73C  LEU*     1.3    84.7    -      -       +      +
     75C  GLN*     1.3    64.9    +      -       -      +
     76C  ASP*     3.3     4.6    +      -       +      +
     77C  LEU*     3.6    38.7    +      -       +      +
     78C  GLN*     3.6    11.4    +      -       -      +
    158C  ARG*     6.2     1.3    -      -       -      +
    224D  TYR*     5.3     5.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 75 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73C  LEU*     3.4    18.1    +      -       +      -
     74C  PRO*     1.3    71.7    -      -       -      +
     76C  ASP*     1.3    83.0    +      -       -      +
     78C  GLN*     3.3    12.8    +      -       -      +
     79C  ALA*     3.3    11.3    +      -       -      +
    229D  SER*     3.9    40.1    +      -       -      +
    230D  ASN*     5.2     5.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 76 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  PRO*     3.3     2.1    -      -       +      -
     75C  GLN*     1.3    98.4    +      -       -      +
     77C  LEU*     1.3    68.1    +      -       +      +
     79C  ALA*     2.9    11.5    +      -       -      +
     80C  ALA*     2.8    24.9    +      -       -      +
    138C  TRP*     3.4    33.1    -      -       +      -
    139C  THR*     5.7     0.9    -      -       +      -
    142C  ASN*     3.2    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30C  TRP*     5.4     9.4    -      -       +      -
     31C  ARG*     3.5    42.6    -      -       +      +
     48C  GLU*     5.9     0.2    -      -       +      -
     49C  GLY      3.8    22.7    -      -       -      +
     50C  LEU*     4.2    15.4    -      -       +      +
     67C  TYR*     5.3     5.4    -      -       +      +
     74C  PRO*     3.6    24.2    +      -       +      -
     75C  GLN      3.4     0.2    -      -       -      -
     76C  ASP*     1.3    89.5    -      -       +      +
     78C  GLN*     1.3    57.4    +      -       -      +
     79C  ALA      3.2     0.2    -      -       -      -
     80C  ALA*     3.2    10.0    +      -       +      +
     81C  ARG*     2.9    31.7    +      -       -      +
    139C  THR*     4.3    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 78 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1262A  VAL*     4.3    25.2    -      -       +      +
   1263A  VAL      5.6     5.2    -      -       -      -
   1264A  GLY*     5.7     0.9    +      -       -      -
     70C  LEU*     5.5     4.0    +      -       -      +
     73C  LEU*     4.0    37.7    -      -       +      +
     74C  PRO      3.6     9.6    +      -       -      +
     75C  GLN*     3.3    13.0    +      -       -      +
     76C  ASP      3.1     0.4    -      -       -      -
     77C  LEU*     1.3    78.1    -      -       -      +
     79C  ALA*     1.3    61.2    +      -       -      +
     81C  ARG*     3.5    46.8    -      -       -      +
     82C  ALA*     3.8     6.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 79 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  GLN      3.3     8.3    +      -       -      +
     76C  ASP*     2.9    12.0    +      -       -      +
     78C  GLN*     1.3    77.7    -      -       -      +
     80C  ALA*     1.3    63.3    +      -       -      +
     81C  ARG      3.2     0.7    -      -       -      -
     82C  ALA*     3.3     9.0    +      -       -      +
     83C  LEU*     3.1    30.4    +      -       +      +
    138C  TRP*     5.5     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 80 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30C  TRP*     4.8     2.2    -      -       +      -
     50C  LEU*     4.0    13.7    -      -       +      -
     76C  ASP      2.8     7.2    +      -       -      +
     77C  LEU*     3.2    21.7    +      -       +      +
     79C  ALA*     1.3    75.5    -      -       -      +
     81C  ARG*     1.3    64.3    +      -       -      +
     83C  LEU*     3.7     1.7    -      -       -      +
     84C  VAL*     3.0    31.6    +      -       -      +
    135C  PRO*     4.1    23.8    -      -       +      -
    138C  TRP*     5.9     2.6    -      -       +      -
    139C  THR*     4.7    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1259A  LEU*     6.2     0.4    -      -       +      -
   1261A  SER      5.6     0.2    +      -       -      -
   1262A  VAL*     4.5    22.5    -      -       +      +
     50C  LEU*     3.2    26.7    +      -       +      +
     51C  TRP*     3.3    43.1    +      -       +      +
     67C  TYR*     3.5    38.4    -      -       -      +
     70C  LEU*     4.1    21.4    -      -       -      +
     77C  LEU      2.9    16.8    +      -       -      +
     78C  GLN*     3.5    43.7    -      -       -      +
     80C  ALA*     1.3    77.3    -      -       -      +
     82C  ALA*     1.3    57.5    +      -       -      +
     84C  VAL*     4.0     1.0    -      -       -      +
     85C  ILE*     3.0    38.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1259A  LEU*     4.4    23.1    -      -       +      -
   1262A  VAL*     6.2     2.0    -      -       +      -
     78C  GLN      3.8     4.7    +      -       -      +
     79C  ALA*     3.3    13.3    +      -       -      +
     80C  ALA      3.2     0.4    -      -       -      -
     81C  ARG*     1.3    77.9    -      -       -      +
     83C  LEU*     1.3    60.5    +      -       +      +
     85C  ILE*     4.5     0.7    -      -       -      -
     86C  ILE*     3.0    45.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79C  ALA*     3.1    21.7    +      -       +      +
     80C  ALA*     3.3     5.4    +      -       -      +
     82C  ALA*     1.3    78.0    -      -       +      +
     84C  VAL*     1.3    60.9    +      -       -      +
     86C  ILE*     5.1     0.7    -      -       -      -
     87C  SER*     3.2    21.1    +      -       -      -
    131C  MET*     3.2    40.6    -      -       +      +
    134C  VAL*     4.2    16.4    -      -       +      -
    135C  PRO*     3.5    41.3    -      -       +      -
    138C  TRP*     4.8     9.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21C  VAL*     4.2    15.5    -      -       +      +
     24C  CYS*     5.8     1.6    -      -       -      -
     25C  CYS*     3.6    38.6    -      -       +      +
     30C  TRP*     4.1    20.6    -      -       +      -
     50C  LEU*     4.1    14.6    -      -       +      -
     80C  ALA      3.0    17.0    +      -       -      +
     81C  ARG      4.1     2.2    -      -       -      +
     83C  LEU*     1.3    74.1    -      -       -      +
     85C  ILE*     1.3    60.8    +      -       -      +
     87C  SER*     3.3     6.6    +      -       -      -
     88C  ILE*     2.9    31.1    +      -       +      +
    131C  MET      5.3     0.7    -      -       -      -
    132C  VAL*     6.0     3.6    -      -       +      -
    135C  PRO*     4.2    11.7    -      -       +      -
    136C  VAL*     5.1     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1181A  TRP*     3.6    19.5    -      -       +      -
   1255A  ALA*     4.0    14.8    -      -       +      +
   1258A  VAL*     3.9    19.5    -      -       +      -
   1259A  LEU*     4.2    29.6    -      -       +      -
   1262A  VAL*     5.8     0.9    -      -       +      -
     25C  CYS*     5.1     0.2    -      -       -      -
     51C  TRP*     3.5    26.2    -      -       +      -
     81C  ARG*     3.0    28.4    +      -       +      +
     82C  ALA*     3.9     3.8    -      -       -      +
     84C  VAL*     1.3    73.2    -      -       -      +
     86C  ILE*     1.3    67.9    +      -       -      +
     88C  ILE*     2.9    21.1    +      -       -      +
     89C  ILE*     3.0    31.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1259A  LEU*     4.4    20.0    -      -       +      -
     82C  ALA*     3.0    28.8    +      -       +      +
     83C  LEU*     5.3     0.4    -      -       -      -
     85C  ILE*     1.3    75.5    -      -       -      +
     87C  SER*     1.3    56.4    +      -       -      +
     89C  ILE*     3.8     9.8    -      -       +      +
     90C  VAL*     3.0    38.2    +      -       +      +
    131C  MET*     3.6    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21C  VAL*     4.2     5.8    -      -       -      +
     83C  LEU      3.2    19.4    +      -       -      -
     84C  VAL*     3.3     7.8    +      -       -      -
     85C  ILE      3.0     0.2    -      -       -      -
     86C  ILE*     1.3    76.4    -      -       -      +
     88C  ILE*     1.3    60.1    +      -       -      +
     90C  VAL*     4.5     3.1    -      -       -      -
     91C  ALA*     2.9    31.9    +      -       -      +
    128C  ALA*     3.4    23.1    +      -       -      +
    131C  MET*     3.5    10.5    -      -       -      +
    132C  VAL*     3.1    28.3    -      -       -      +
    174C  LEU*     5.0     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1181A  TRP*     4.1    11.7    -      -       +      -
   1185A  MET*     3.9    14.6    -      -       -      -
   1251A  ILE*     4.0    23.3    -      -       +      -
     18C  TRP*     3.1    12.9    +      -       -      +
     21C  VAL*     4.2    20.0    -      -       +      -
     22C  MET*     3.9    20.6    -      -       +      -
     25C  CYS*     3.8    33.2    -      -       +      -
     84C  VAL*     2.9    25.8    +      -       +      +
     85C  ILE*     2.9     7.6    +      -       -      +
     87C  SER*     1.3    74.8    -      -       -      +
     89C  ILE*     1.3    59.8    +      -       +      +
     91C  ALA*     4.7     0.2    -      -       -      -
     92C  ALA*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1251A  ILE      5.7     0.2    -      -       -      -
   1252A  ILE*     3.5    38.5    -      -       +      +
   1255A  ALA*     3.7    23.3    -      -       +      -
   1256A  LEU*     4.6    14.8    -      -       +      -
   1259A  LEU*     5.3     3.8    -      -       +      -
     85C  ILE*     3.0    38.2    +      -       +      +
     86C  ILE*     3.8    10.1    -      -       +      +
     88C  ILE*     1.3    77.3    -      -       +      +
     90C  VAL*     1.3    69.5    +      -       +      +
     92C  ALA*     3.0     8.8    +      -       -      +
     93C  LEU*     2.9    31.4    +      -       +      +
   1252E  ILE*     6.0     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86C  ILE*     3.0    38.7    +      -       +      +
     87C  SER*     3.8     4.7    -      -       -      +
     89C  ILE*     1.3    76.6    -      -       +      +
     91C  ALA*     1.3    62.5    +      -       -      +
     93C  LEU*     3.1    25.8    +      -       +      +
     94C  GLY      3.1     1.0    +      -       -      -
    124C  VAL*     3.0    48.3    -      -       +      +
    127C  LEU*     5.0     7.4    -      -       +      -
    128C  ALA*     4.1    10.8    -      -       +      +
    131C  MET*     5.4     6.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  TRP*     3.5    24.0    -      -       +      -
     21C  VAL*     5.5     1.3    -      -       +      -
     87C  SER*     2.9    18.6    +      -       -      +
     88C  ILE*     4.7     0.2    -      -       -      -
     90C  VAL*     1.3    76.5    -      -       -      +
     92C  ALA*     1.3    57.7    +      -       -      +
     94C  GLY*     2.9     5.1    +      -       -      +
     95C  VAL*     2.9    29.6    +      -       -      +
    124C  VAL*     4.3     4.5    -      -       -      -
    125C  PHE*     3.6    13.0    -      -       +      -
    128C  ALA*     3.8    16.6    -      -       +      +
    174C  LEU*     4.8     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1248A  ILE*     4.0     9.8    -      -       +      +
   1251A  ILE*     5.7     1.1    -      -       +      -
   1252A  ILE*     3.7    21.5    -      -       +      -
     18C  TRP*     3.6    26.6    -      -       +      +
     88C  ILE*     2.9    22.8    +      -       +      +
     89C  ILE      3.0     8.7    +      -       -      +
     91C  ALA*     1.3    76.4    -      -       -      +
     93C  LEU*     1.3    59.8    +      -       -      +
     95C  VAL*     3.3     5.8    +      -       -      +
     96C  LEU*     3.1    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1252A  ILE*     4.2     9.0    -      -       +      -
     89C  ILE*     2.9    26.6    +      -       +      +
     90C  VAL*     3.1    19.7    +      -       +      +
     92C  ALA*     1.3    76.3    -      -       -      +
     94C  GLY*     1.3    61.6    +      -       -      +
     96C  LEU*     3.1    11.3    +      -       +      +
     97C  LEU*     3.0    29.4    +      -       +      +
    124C  VAL*     4.8     5.4    -      -       +      -
   1252E  ILE*     6.4     0.2    -      -       +      -
   1256E  LEU*     3.2    34.5    -      -       +      -
   1259E  LEU*     3.9    19.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  VAL      3.1     7.1    +      -       -      -
     91C  ALA      2.9     8.5    +      -       -      -
     93C  LEU*     1.3    77.4    -      -       -      +
     95C  VAL*     1.3    58.4    +      -       -      +
     97C  LEU*     3.4    16.7    +      -       -      +
     98C  SER*     3.6    11.6    +      -       -      -
    121C  ALA*     3.9     5.6    -      -       -      +
    124C  VAL*     3.7    18.7    -      -       -      +
    125C  PHE*     3.3    25.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1214A  TRP*     3.3    43.1    -      -       +      -
   1248A  ILE*     4.2     5.2    -      -       +      -
     15C  VAL*     4.3    18.4    -      -       +      -
     18C  TRP*     3.9    31.4    -      -       +      -
     91C  ALA      2.9    17.7    +      -       -      +
     92C  ALA*     3.6     7.9    -      -       -      +
     93C  LEU      3.2     0.2    -      -       -      -
     94C  GLY*     1.3    75.3    -      -       -      +
     96C  LEU*     1.3    65.2    +      -       -      +
     97C  LEU      3.1     0.2    -      -       -      -
     98C  SER*     3.2    13.6    +      -       -      +
     99C  VAL*     3.3    14.0    +      -       +      +
    125C  PHE*     4.1    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1245A  ALA*     4.2    15.9    -      -       +      -
   1248A  ILE*     3.6    40.6    -      -       +      -
   1249A  ILE*     4.8     8.3    -      -       +      -
     92C  ALA      3.1     9.0    +      -       -      +
     93C  LEU*     3.1    15.1    +      -       +      +
     95C  VAL*     1.3    76.9    -      -       -      +
     97C  LEU*     1.3    61.5    +      -       +      +
     99C  VAL*     3.4    20.1    -      -       +      +
    100C  VAL*     2.9    29.9    +      -       +      +
   1256E  LEU*     4.6    23.3    -      -       +      -
   1259E  LEU*     5.4     9.6    -      -       +      -
   1260E  LEU*     4.0    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93C  LEU*     3.0    20.0    +      -       +      +
     94C  GLY*     3.6    10.8    -      -       -      +
     95C  VAL      3.1     0.6    -      -       -      -
     96C  LEU*     1.3    81.4    -      -       +      +
     98C  SER*     1.3    58.0    +      -       -      +
     99C  VAL      3.5     0.4    -      -       -      -
    100C  VAL*     3.8     7.5    -      -       +      +
    101C  GLY*     3.6    20.1    +      -       -      -
    117C  THR*     4.3    24.4    -      -       +      +
    118C  MET*     4.3     6.6    -      -       -      +
    120C  VAL*     4.3    14.6    -      -       +      -
    121C  ALA*     3.8    32.8    -      -       +      +
    124C  VAL*     4.8     6.7    -      -       +      -
   1259E  LEU*     4.1    29.6    -      -       +      -
   1262E  VAL*     5.2     8.5    -      -       +      -
----------------------------------------------------------
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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