Contacts of the helix formed by residues 156 - 183 (chain F) in PDB entry 1N2Q


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 156 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154F  ALA      3.7     3.9    +      -       -      -
    155F  GLN*     1.3    73.7    -      -       -      +
    157F  GLN*     1.3    68.0    +      -       -      +
    158F  TRP*     3.1     9.0    -      -       +      +
    159F  LEU*     2.8    29.7    +      -       +      +
    160F  GLN*     2.9     9.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 157 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50F  MET*     4.7     1.5    -      -       +      +
    155F  GLN      3.7     1.0    +      -       -      -
    156F  ASN*     1.3    71.3    -      -       -      +
    158F  TRP*     1.3    63.2    +      -       -      +
    160F  GLN*     3.0    29.4    +      -       +      +
    161F  ASP*     3.1    16.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 158 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49F  ASN*     6.2     3.6    -      -       +      -
     50F  MET*     3.2    59.1    -      -       +      +
    156F  ASN*     2.9     7.9    +      -       +      +
    157F  GLN*     1.3    79.6    -      -       -      +
    159F  LEU*     1.3    72.6    +      -       +      +
    162F  MET*     3.0    28.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 159 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61F  ASN*     4.0    25.2    -      -       -      +
    155F  GLN*     3.6    34.1    -      -       +      +
    156F  ASN*     2.8    27.4    +      -       +      +
    158F  TRP*     1.3    88.2    -      -       +      +
    160F  GLN*     1.3    60.5    +      -       -      +
    162F  MET*     3.5     6.6    -      -       +      +
    163F  THR*     2.8    33.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 160 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101F  TYR*     3.1    24.5    +      -       -      +
    105F  ARG*     2.7    35.0    +      -       -      +
    152F  LEU*     3.4    15.2    +      -       -      +
    153F  GLN*     3.3    20.6    +      -       -      +
    155F  GLN*     2.8    30.1    +      -       -      +
    156F  ASN      2.9     7.0    +      -       -      +
    157F  GLN*     3.0    22.6    +      -       +      +
    159F  LEU*     1.3    77.0    -      -       -      +
    161F  ASP*     1.3    60.8    +      -       -      +
    163F  THR*     3.4    15.8    -      -       -      -
    164F  THR*     3.3     8.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 161 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44F  THR*     3.6     9.8    +      -       -      -
     48F  SER*     3.0    41.0    +      -       -      -
     50F  MET*     3.5    36.9    -      -       +      +
    157F  GLN*     3.1    11.4    +      -       +      +
    160F  GLN*     1.3    73.5    -      -       -      +
    162F  MET*     1.3    59.2    +      -       -      +
    164F  THR*     2.8    29.4    +      -       -      -
    165F  HIS*     2.9    13.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 162 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50F  MET*     4.2    19.5    -      -       -      +
     58F  LEU      4.7     2.7    -      -       -      +
     59F  ALA*     3.4    50.5    -      -       +      +
     61F  ASN*     3.7    31.0    -      -       +      +
     63F  LEU*     6.3     1.1    -      -       +      -
    158F  TRP*     3.0    23.8    +      -       +      +
    159F  LEU*     3.5    13.2    -      -       +      +
    160F  GLN      3.3     0.2    -      -       -      -
    161F  ASP*     1.3    77.9    +      -       -      +
    163F  THR*     1.3    61.3    +      -       -      +
    165F  HIS*     3.2    13.9    +      -       -      +
    166F  LEU*     2.9    38.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 163 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2B  LEU*     3.8    19.5    -      -       +      -
     63F  LEU*     3.5    36.2    -      -       +      +
    101F  TYR*     4.7     1.8    -      -       +      -
    152F  LEU*     3.6    24.5    -      -       +      -
    155F  GLN*     3.2    17.7    +      -       -      -
    159F  LEU      2.8    21.5    +      -       -      -
    160F  GLN      3.4    10.8    -      -       -      -
    161F  ASP      3.1     0.4    -      -       -      -
    162F  MET*     1.3    76.7    -      -       -      +
    164F  THR*     1.3    62.1    +      -       -      +
    166F  LEU      3.3     1.4    +      -       -      -
    167F  ILE*     3.0    29.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 164 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44F  THR*     3.5    34.3    -      -       +      +
    101F  TYR*     3.0    24.5    +      -       -      -
    102F  LEU*     3.4    28.0    -      -       +      +
    105F  ARG*     5.9     0.7    -      -       -      +
    106F  PHE*     4.1     8.5    -      -       +      -
    160F  GLN      3.3     4.2    +      -       -      -
    161F  ASP*     2.8    19.4    +      -       -      -
    163F  THR*     1.3    72.8    -      -       -      +
    165F  HIS*     1.3    61.8    +      -       -      -
    167F  ILE*     3.2     7.2    +      -       -      +
    168F  LEU*     3.1    25.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 165 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529D  PHE*     4.0    22.9    -      +       -      -
     41F  ARG*     5.2     1.1    -      -       +      -
     44F  THR*     4.9     5.1    +      -       -      +
     48F  SER*     6.2     0.9    -      -       -      -
     50F  MET      2.6    29.5    +      -       -      +
     51F  CYS*     3.0    39.4    -      -       +      -
     57F  ALA      5.2     0.2    -      -       -      -
     59F  ALA*     3.4    30.1    -      -       +      +
    161F  ASP*     2.9    14.5    +      -       -      +
    162F  MET*     3.7    10.8    -      -       +      +
    164F  THR*     1.3    76.2    -      -       -      +
    166F  LEU*     1.3    63.4    +      -       +      +
    168F  LEU*     3.3    31.1    +      -       +      +
    169F  ARG*     3.4     6.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 166 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59F  ALA*     3.5    25.6    -      -       +      +
     62F  ASN*     3.8    30.1    -      -       -      +
     63F  LEU*     3.7    18.2    -      -       +      +
     65F  LEU*     3.6    34.3    -      -       +      -
    162F  MET*     2.9    23.4    +      -       +      +
    163F  THR      3.6     4.5    -      -       -      +
    165F  HIS*     1.3    75.6    -      -       -      +
    167F  ILE*     1.3    63.6    +      -       -      +
    169F  ARG*     3.1    27.1    +      -       +      +
    170F  SER*     3.3    10.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 167 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2B  LEU*     3.5    31.6    -      -       +      -
     37F  ILE*     5.7     0.7    -      -       +      -
     63F  LEU*     4.2     2.7    -      -       +      -
     65F  LEU*     4.5     8.3    -      -       -      -
     98F  TYR*     3.8    27.4    -      -       +      +
     99F  LEU*     4.3     3.4    -      -       +      -
    101F  TYR*     4.7     0.2    -      -       +      -
    102F  LEU*     3.7    36.8    -      -       +      -
    163F  THR*     3.0    19.8    +      -       +      +
    164F  THR      3.3     6.5    -      -       -      +
    166F  LEU*     1.3    77.3    -      -       -      +
    168F  LEU*     1.3    63.6    +      -       -      +
    169F  ARG      3.2     0.9    +      -       -      -
    170F  SER*     3.2     5.7    +      -       -      -
    171F  PHE*     2.9    48.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 168 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  ILE*     3.3    34.0    -      -       +      +
     40F  LEU*     3.7    38.8    -      -       +      -
     41F  ARG*     3.8    22.7    -      -       +      +
     44F  THR*     3.4    38.8    -      -       +      +
    102F  LEU*     4.3     7.9    -      -       +      -
    164F  THR*     3.2    11.9    -      -       +      +
    165F  HIS*     3.4    22.7    -      -       +      +
    167F  ILE*     1.3    77.9    -      -       -      +
    169F  ARG*     1.3    63.6    +      -       -      +
    171F  PHE*     3.5     1.4    +      -       -      +
    172F  LYS*     3.3    15.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 169 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    528D  SER*     2.7    28.5    +      -       -      -
    529D  PHE*     2.6    54.6    +      -       +      +
    530D  TYR*     4.5     1.2    -      -       -      +
    531D  ARG*     3.8    13.1    -      -       -      +
    578D  GLU*     4.9     5.3    +      -       -      -
     60F  GLU*     4.5     5.9    +      -       -      -
    165F  HIS*     3.4     7.1    +      -       -      +
    166F  LEU*     3.1    24.5    +      -       +      +
    168F  LEU*     1.3    78.6    -      -       -      +
    170F  SER*     1.3    65.9    +      -       -      +
    172F  LYS*     2.9     8.4    +      -       -      +
    173F  GLU*     2.8    62.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 170 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65F  LEU*     3.5    35.7    +      -       -      +
     95F  PHE*     3.3    23.3    -      -       -      -
    166F  LEU*     3.3     5.1    +      -       -      -
    167F  ILE      3.2     6.6    +      -       -      -
    169F  ARG*     1.3    80.5    -      -       -      +
    171F  PHE*     1.3    60.0    +      -       -      +
    173F  GLU*     4.3     6.7    -      -       -      -
    174F  PHE*     2.6    41.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 171 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169A  PHE*     4.3     0.7    -      +       -      -
     33F  ILE*     3.3    24.7    -      -       +      -
     34F  LEU*     3.1    19.4    -      -       -      +
     37F  ILE*     3.7    22.2    -      -       +      -
     65F  LEU*     5.3     0.2    -      -       +      -
     95F  PHE*     3.3    48.5    -      +       +      -
     98F  TYR*     4.6     5.4    -      +       +      -
     99F  LEU*     3.4    41.5    -      -       +      -
    120F  THR*     4.0     4.3    -      -       +      -
    167F  ILE*     2.9    43.7    -      -       +      -
    168F  LEU      4.0     0.9    -      -       -      +
    169F  ARG      3.1     1.0    -      -       -      -
    170F  SER*     1.3    75.4    -      -       -      +
    172F  LYS*     1.3    58.1    +      -       -      +
    173F  GLU      3.0     7.6    +      -       -      -
    175F  LEU*     3.2    27.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 172 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    462D  PRO*     5.4     1.5    -      -       -      +
    463D  GLU*     2.6    41.4    +      -       -      +
    529D  PHE*     6.6     0.7    -      -       +      -
    530D  TYR*     2.9    27.3    +      -       -      +
     34F  LEU*     3.4    42.2    -      -       +      +
     35F  ASP*     4.2     7.4    +      -       -      +
     37F  ILE*     4.1    13.0    -      -       +      -
     38F  SER*     6.5     0.2    -      -       -      -
    168F  LEU      3.3    13.4    +      -       -      +
    169F  ARG*     2.9     6.5    +      -       -      +
    171F  PHE*     1.3    77.0    -      -       -      +
    173F  GLU*     1.3    57.2    +      -       -      +
    176F  GLN*     2.7    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 173 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529D  PHE*     3.6    12.3    -      -       -      +
    530D  TYR*     3.6    15.9    -      -       +      -
    579D  PHE*     3.5    33.5    -      -       +      -
    169F  ARG*     2.8    66.6    +      -       +      +
    170F  SER*     3.8     3.8    -      -       -      +
    171F  PHE      3.0     0.4    -      -       -      -
    172F  LYS*     1.3    80.0    -      -       -      +
    174F  PHE*     1.3    68.6    +      -       -      +
    175F  LEU      3.4     0.7    -      -       -      -
    176F  GLN*     3.1     3.8    +      -       -      +
    177F  SER*     3.0    26.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 174 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579D  PHE*     6.1     0.4    -      -       -      -
     65F  LEU      5.7     0.7    -      -       -      -
     67F  LYS*     3.2    36.8    -      -       +      -
     68F  MET*     3.4    45.2    -      -       +      +
     87F  LYS*     3.6    27.1    -      -       +      -
     88F  ILE*     4.3    16.4    -      -       +      -
     91F  GLY*     4.2     9.4    -      -       -      -
     95F  PHE*     3.4    29.2    -      +       +      -
    170F  SER*     2.6    27.0    +      -       -      +
    173F  GLU*     1.3    74.4    -      -       -      +
    175F  LEU*     1.3    74.4    +      -       +      +
    177F  SER*     3.0    21.5    +      -       -      -
    178F  SER*     3.2     8.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 175 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  ILE*     3.3    24.7    -      -       +      +
     33F  ILE*     3.4    43.5    -      -       +      -
     34F  LEU*     3.9     8.1    -      -       +      -
     88F  ILE*     5.2     2.7    -      -       +      -
     92F  LEU*     3.6    25.8    -      -       +      -
     95F  PHE*     4.2    10.3    -      -       +      -
    171F  PHE*     3.2    30.7    +      -       +      +
    173F  GLU      3.4     0.4    -      -       -      -
    174F  PHE*     1.3    99.3    -      -       +      +
    176F  GLN*     1.3    65.3    +      -       -      +
    178F  SER*     3.0    26.7    -      -       -      +
    179F  LEU*     3.5     0.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 176 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    463D  GLU*     3.0    33.3    +      -       -      +
    464D  GLY*     3.7    16.0    -      -       -      -
    530D  TYR*     2.8    30.7    +      -       -      -
    581D  GLN*     4.9     3.5    -      -       -      +
     34F  LEU*     3.5    16.7    -      -       +      +
    172F  LYS*     2.7    55.5    +      -       -      +
    173F  GLU      3.1     6.5    +      -       -      +
    175F  LEU*     1.3    77.0    -      -       -      +
    177F  SER*     1.3    63.4    +      -       -      +
    179F  LEU*     3.2    19.1    +      -       -      +
    180F  ARG*     3.7    11.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 177 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579D  PHE*     3.4    28.2    -      -       -      -
     68F  MET*     3.5    23.8    -      -       -      -
     74F  CYS*     5.2     3.2    -      -       -      +
     75F  PHE*     4.1    10.3    -      -       -      -
     84F  CYS*     5.5     0.2    -      -       -      -
    173F  GLU      3.0    12.7    +      -       -      -
    174F  PHE      3.0    11.0    +      -       -      -
    176F  GLN*     1.3    74.3    -      -       -      +
    178F  SER*     1.3    63.1    +      -       -      +
    180F  ARG*     3.2    17.9    +      -       -      +
    181F  ALA*     3.1    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 178 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  ILE*     3.5    12.1    -      -       -      +
     68F  MET*     4.5     1.1    -      -       -      +
     88F  ILE*     3.3    38.2    -      -       -      +
    174F  PHE      3.2     5.5    +      -       -      -
    175F  LEU*     3.0    25.2    +      -       -      -
    177F  SER*     1.3    77.7    -      -       -      +
    179F  LEU*     1.3    51.4    +      -       -      +
    181F  ALA*     3.1     5.5    +      -       -      +
    182F  LEU*     2.8    52.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 179 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    600   CYS*     3.8    11.7    -      -       -      +
    145A  HIS*     5.1     0.2    -      -       +      -
    464D  GLY*     3.6    30.3    -      -       -      +
    466D  SER*     3.7     9.6    -      -       -      +
     27F  ASP*     3.1    42.7    -      -       -      +
     30F  ILE*     3.7    13.9    -      -       +      +
     31F  ARG*     3.6    19.5    -      -       +      +
     34F  LEU*     3.6    24.7    -      -       +      -
    175F  LEU      3.5     0.9    +      -       -      +
    176F  GLN      3.2     9.6    +      -       -      +
    177F  SER      3.2     0.2    -      -       -      -
    178F  SER*     1.3    78.4    -      -       -      +
    180F  ARG*     1.3    63.4    +      -       -      +
    182F  LEU*     4.9     2.5    -      -       -      -
    183F  ARG*     3.0    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 180 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    600   CYS*     3.1    43.2    +      -       +      +
    464D  GLY*     6.5     0.7    -      -       -      -
    492D  CYS*     2.9    20.3    +      -       +      +
    579D  PHE*     5.1    12.9    +      -       -      +
    580D  GLY      2.6    31.8    +      -       -      -
    581D  GLN*     2.7    47.8    +      -       -      +
    582D  GLY      4.5     0.6    -      -       -      +
     74F  CYS      5.7     2.2    -      -       -      +
    176F  GLN*     3.8    13.9    -      -       +      +
    177F  SER*     3.2    19.9    +      -       -      +
    179F  LEU*     1.3    75.1    -      -       -      +
    181F  ALA*     1.3    55.9    +      -       -      +
    184F  GLN*     2.8    38.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 181 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74F  CYS      4.3     4.9    +      -       -      +
     79F  PHE*     3.6    18.7    -      -       +      -
     84F  CYS*     3.5    31.4    -      -       -      -
    177F  SER      3.1    10.1    +      -       -      +
    178F  SER*     3.1     8.3    +      -       -      +
    180F  ARG*     1.3    75.8    -      -       -      +
    182F  LEU*     1.3    61.6    +      -       +      +
    183F  ARG      3.2     0.2    -      -       -      -
    184F  GLN*     2.9    23.7    +      -       -      +
    185F  MET*     3.3    22.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 182 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138C  PRO*     5.2     0.9    -      -       -      +
     23F  SER*     4.9    15.4    -      -       -      +
     26F  ILE*     3.7    19.3    -      -       +      -
     27F  ASP*     4.4    13.9    -      -       +      +
     30F  ILE*     3.5    25.4    -      -       +      -
     85F  LEU*     3.5    31.9    -      -       +      -
     88F  ILE*     4.9     8.1    -      -       +      -
    127F  LEU*     5.6     0.2    -      -       +      -
    130F  LYS*     6.1     1.1    -      -       -      -
    178F  SER*     2.8    37.9    +      -       -      +
    179F  LEU      4.3     0.9    -      -       -      +
    181F  ALA*     1.3    74.0    -      -       +      +
    183F  ARG*     1.3    61.1    +      -       -      +
    184F  GLN      3.0     0.2    -      -       -      -
    185F  MET*     3.1    42.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 183 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    600   CYS      2.7    42.6    +      -       -      +
    145A  HIS*     4.5     6.3    -      -       -      -
    134C  PHE*     3.3    31.9    -      -       +      +
    138C  PRO*     3.7     8.5    -      -       +      +
    139C  ALA*     2.8    26.6    +      -       -      +
    466D  SER*     3.2    35.6    +      -       -      -
    467D  SER*     4.6     0.4    -      -       -      +
    468D  PHE*     3.5    25.1    -      -       -      -
    490D  GLN*     2.8    23.0    +      -       -      +
     27F  ASP*     4.3    20.3    -      -       -      +
    179F  LEU      3.0    19.5    +      -       -      +
    180F  ARG      4.8     2.2    -      -       -      +
    182F  LEU*     1.3    75.9    -      -       -      +
    184F  GLN*     1.3    58.0    +      -       +      +
    185F  MET      3.4     1.1    -      -       -      -
----------------------------------------------------------
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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