Contacts of the helix formed by residues 169 - 195 (chain A) in PDB entry 4P9U


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 GLU 169 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  GLU*     5.2     3.7    -      -       -      +
    167A  LYS*     3.0     5.2    +      -       -      -
    168A  ASP*     1.3    92.5    +      -       -      +
    170A  LEU*     1.3    67.3    +      -       -      +
    171A  LYS      3.4     0.4    -      -       -      -
    172A  ARG*     3.7    17.5    -      -       +      +
    173A  GLN*     3.0    39.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  GLU      4.6     3.6    -      -       -      +
    167A  LYS*     2.8    39.0    +      -       +      +
    169A  GLU*     1.3    83.6    +      -       -      +
    171A  LYS*     1.3    62.7    +      -       -      +
    173A  GLN*     4.6     5.3    -      -       -      +
    174A  GLU*     3.3    25.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  HIS*     2.9    42.3    +      -       +      -
    162A  LYS*     4.0    22.8    +      -       -      +
    167A  LYS*     2.8    16.1    +      -       +      +
    170A  LEU*     1.3    74.2    -      -       -      +
    172A  ARG*     1.3    66.4    +      -       -      +
    174A  GLU*     3.1     8.2    +      -       -      +
    175A  ILE*     3.0    50.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLN*     2.5    54.1    +      -       -      +
    159A  GLN*     4.6    12.9    +      -       -      +
    160A  HIS*     3.9    28.5    -      -       +      +
    168A  ASP*     3.0    26.9    +      -       -      +
    169A  GLU*     3.7    15.5    -      -       -      +
    170A  LEU      3.3     0.2    -      -       -      -
    171A  LYS*     1.3    81.6    -      -       -      +
    173A  GLN*     1.3    58.1    +      -       +      +
    175A  ILE*     3.3     2.1    +      -       -      -
    176A  LEU*     2.9    55.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  PRO*     3.2    51.8    -      -       +      +
    143A  SER*     4.1    10.4    +      -       -      +
    169A  GLU*     3.0    29.3    +      -       +      +
    170A  LEU*     4.6     6.3    -      -       -      +
    171A  LYS      3.3     0.8    -      -       -      -
    172A  ARG*     1.3    78.4    -      -       +      +
    174A  GLU*     1.3    63.3    +      -       -      +
    176A  LEU*     3.5    22.0    -      -       +      +
    177A  ILE*     2.9    34.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 174 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  PRO*     5.8     4.7    -      -       -      +
    170A  LEU      3.3    18.2    +      -       -      +
    171A  LYS*     3.1     9.3    +      -       -      +
    173A  GLN*     1.3    78.1    -      -       -      +
    175A  ILE*     1.3    68.0    +      -       +      +
    177A  ILE*     3.1    21.1    +      -       -      +
    178A  ALA*     3.0    22.0    +      -       -      +
    221A  SER*     5.1    10.2    -      -       -      +
    223A  PRO*     6.0     0.9    -      -       -      +
    226A  ARG*     4.7    13.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 175 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLN*     3.1    41.1    -      -       -      +
    160A  HIS*     4.9     1.1    -      -       +      +
    171A  LYS*     3.0    48.2    +      -       +      +
    172A  ARG*     3.6     1.3    -      -       -      +
    174A  GLU*     1.3    77.0    -      -       +      +
    176A  LEU*     1.3    55.7    +      -       -      +
    178A  ALA*     3.4     6.6    +      -       -      +
    179A  LYS*     2.9    40.8    +      -       +      +
    217A  SER*     5.1     7.9    -      -       -      +
    221A  SER*     5.9     2.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 176 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  LYS*     2.9    37.9    -      -       +      +
    157A  ILE*     5.0     0.4    -      -       -      -
    158A  GLN*     3.6    36.6    -      -       +      +
    172A  ARG*     2.9    51.3    +      -       -      +
    173A  GLN*     3.5    27.6    -      -       +      +
    174A  GLU      3.1     0.2    -      -       -      -
    175A  ILE*     1.3    78.4    -      -       -      +
    177A  ILE*     1.3    56.0    +      -       +      +
    179A  LYS*     3.1     5.4    +      -       +      +
    180A  THR      2.9    24.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 177 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  ALA*     4.6    22.0    -      -       +      +
    138A  LEU*     5.7     5.2    -      -       +      -
    140A  ASN      6.0     0.7    -      -       -      +
    142A  PRO*     5.1    22.2    -      -       +      +
    144A  TRP*     6.1     3.4    -      -       +      -
    156A  LYS*     4.8     0.7    -      -       -      +
    173A  GLN      2.9    18.6    +      -       -      +
    174A  GLU*     3.1    24.9    +      -       -      +
    176A  LEU*     1.3    74.5    -      -       +      +
    178A  ALA*     1.3    67.0    +      -       -      +
    180A  THR*     3.1    16.0    -      -       +      +
    181A  PHE*     3.0    22.5    +      -       +      +
    226A  ARG*     3.7    37.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  GLU      3.0     9.8    +      -       -      +
    175A  ILE*     3.6     9.0    -      -       -      +
    176A  LEU      3.3     0.2    -      -       -      -
    177A  ILE*     1.3    76.1    -      -       -      +
    179A  LYS*     1.3    58.3    +      -       -      +
    182A  ASN*     3.0    30.1    +      -       -      +
    216A  GLY      4.0     0.2    -      -       -      +
    217A  SER*     3.1    28.3    -      -       -      +
    220A  PHE*     3.2    37.1    +      -       -      +
    221A  SER*     3.6    10.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155A  GLU      5.7     1.1    -      -       -      +
    156A  LYS*     4.4    17.8    -      -       +      +
    157A  ILE      3.2    31.5    +      -       -      +
    158A  GLN*     3.6    19.9    -      -       +      +
    175A  ILE*     2.9    34.1    +      -       +      +
    176A  LEU*     3.4    10.5    -      -       +      +
    178A  ALA*     1.3    78.2    -      -       -      +
    180A  THR*     1.3    56.0    +      -       -      +
    182A  ASN*     3.5     5.8    +      -       -      +
    183A  PHE*     2.9    26.6    +      -       -      +
    217A  SER*     3.8    28.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  ALA*     4.4    21.5    -      -       +      -
    144A  TRP*     3.9    10.4    -      -       -      +
    153A  TYR*     5.4     3.9    +      -       -      -
    156A  LYS*     3.1    31.8    -      -       -      +
    176A  LEU      2.9     8.2    +      -       -      +
    177A  ILE*     3.1    26.0    -      -       +      +
    179A  LYS*     1.3    73.7    -      -       -      +
    181A  PHE*     1.3    69.0    +      -       +      +
    183A  PHE*     3.0     9.4    +      -       -      +
    184A  TYR*     3.0    45.1    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  CYS*     3.7    18.4    -      -       -      -
    137A  ALA*     6.2     0.7    -      -       +      -
    138A  LEU*     3.5    33.0    -      -       +      -
    177A  ILE*     3.0    16.1    +      -       +      +
    178A  ALA      4.0     2.7    -      -       -      +
    180A  THR*     1.3    80.7    -      -       +      +
    182A  ASN*     1.3    58.6    +      -       -      +
    184A  TYR*     3.4     5.7    +      -       -      +
    185A  ASP*     2.9    24.9    +      -       -      +
    220A  PHE*     3.5    28.5    -      +       +      -
    226A  ARG*     3.2    38.1    -      -       +      -
    229A  ALA*     3.4    25.4    -      -       +      -
    230A  MET*     3.6    16.8    -      -       +      -
    233A  TYR*     3.8    16.4    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178A  ALA      3.0    17.9    +      -       -      +
    179A  LYS*     3.6     7.7    +      -       -      +
    181A  PHE*     1.3    74.9    -      -       -      +
    183A  PHE*     1.3    68.5    +      -       -      +
    185A  ASP*     3.6     0.2    -      -       -      +
    186A  TYR*     2.9    23.9    +      -       -      +
    212A  TYR*     3.2    29.1    -      -       -      +
    213A  ASP*     2.9    38.3    +      -       -      +
    216A  GLY*     3.2    27.6    -      -       -      -
    217A  SER*     4.0     4.6    +      -       -      +
    220A  PHE*     3.5    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152A  PRO      4.7     3.1    -      -       -      -
    153A  TYR*     3.8    29.2    -      +       -      -
    155A  GLU*     3.7    46.9    -      -       +      -
    156A  LYS*     5.4     5.2    -      -       +      -
    179A  LYS      2.9    16.5    +      -       -      +
    180A  THR*     3.1    13.0    -      -       -      +
    182A  ASN*     1.3    81.5    -      -       -      +
    184A  TYR*     1.3    78.5    +      +       -      +
    186A  TYR*     3.6     5.4    +      -       -      +
    187A  MET*     3.0    55.6    +      -       +      +
    209A  LYS*     6.2     1.3    -      -       -      -
    213A  ASP*     5.3     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130A  ASN*     4.5     7.6    -      -       -      -
    131A  VAL*     3.8    19.2    -      -       +      +
    134A  SER*     3.4    46.2    +      -       -      -
    135A  CYS*     3.8    25.8    -      -       -      -
    144A  TRP*     4.3     5.0    -      +       -      -
    148A  ILE*     3.9     9.0    -      -       -      +
    153A  TYR*     2.6    28.0    +      +       -      -
    180A  THR*     3.0    41.4    +      -       -      +
    181A  PHE      4.0     1.1    -      -       -      +
    183A  PHE*     1.3    86.2    -      +       -      +
    185A  ASP*     1.3    60.4    +      -       -      +
    187A  MET*     3.3    28.3    +      -       +      +
    188A  LEU*     2.9    28.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  ARG*     3.6     7.7    +      -       -      -
    181A  PHE      2.9    16.6    +      -       -      +
    182A  ASN*     3.6     4.7    -      -       -      +
    184A  TYR*     1.3    76.5    -      -       -      +
    186A  TYR*     1.3    62.0    +      -       -      +
    188A  LEU*     3.1     5.4    +      -       -      +
    189A  PHE*     3.0    39.4    +      -       -      -
    212A  TYR*     2.8    33.9    +      -       -      -
    220A  PHE*     3.6    26.3    -      -       +      -
    233A  TYR*     2.3    38.3    +      -       -      +
    255A  TYR*     4.5     5.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  ASN      2.9    16.8    +      -       -      +
    183A  PHE*     3.8     4.7    -      -       -      +
    185A  ASP*     1.3    76.3    +      -       -      +
    187A  MET*     1.3    70.6    +      -       +      +
    189A  PHE*     3.4     1.0    +      -       -      +
    190A  GLN*     2.9    48.4    +      -       +      +
    205A  PHE*     3.1    46.2    +      +       +      -
    206A  ASN*     3.4    14.2    +      -       -      -
    209A  LYS*     3.5    44.8    -      -       +      +
    212A  TYR*     3.5    40.8    -      +       +      -
    213A  ASP*     4.3     9.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  ILE*     5.9     1.1    -      -       +      +
    130A  ASN*     4.2    19.1    -      -       -      +
    131A  VAL*     4.7     7.2    -      -       +      -
    183A  PHE*     3.0    48.0    +      -       +      +
    184A  TYR*     3.4    24.2    -      -       +      +
    186A  TYR*     1.3    82.5    -      -       +      +
    188A  LEU*     1.3    62.0    +      -       -      +
    190A  GLN*     4.9     1.3    -      -       -      -
    191A  ARG*     2.9    75.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  MET*     4.3     2.0    -      -       +      -
    127A  ILE*     5.9     2.9    -      -       +      -
    128A  MET*     4.7    19.1    -      -       +      +
    131A  VAL*     3.8    30.2    -      -       +      +
    184A  TYR      2.9    13.1    +      -       -      +
    185A  ASP*     3.1    10.7    +      -       -      +
    187A  MET*     1.3    75.9    -      -       -      +
    189A  PHE*     1.3    87.7    +      -       +      +
    191A  ARG*     4.1     1.9    -      -       -      +
    192A  LEU*     2.9    49.5    +      -       +      +
    233A  TYR*     3.6    35.9    -      -       +      -
    236A  LEU*     4.3    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  ARG*     3.6    38.4    -      -       +      -
    109A  SER*     3.6    14.6    -      -       -      -
    112A  PHE*     3.7     8.1    -      +       -      -
    113A  MET*     3.6    24.9    -      -       +      -
    185A  ASP*     3.0    32.1    +      -       -      +
    186A  TYR      4.2     1.6    -      -       -      +
    188A  LEU*     1.3    92.4    -      -       +      +
    190A  GLN*     1.3    57.7    +      -       -      +
    192A  LEU*     4.7     1.6    -      -       -      -
    193A  ALA*     2.9    29.4    +      -       -      +
    205A  PHE*     3.4    22.4    -      +       +      -
    212A  TYR*     3.1    24.0    -      -       +      +
    232A  PHE*     3.7    28.7    -      +       -      -
    233A  TYR*     4.7     1.6    -      +       -      -
    255A  TYR*     4.7     3.8    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186A  TYR*     2.9    48.8    +      -       +      +
    187A  MET*     4.3     1.2    -      -       -      +
    189A  PHE*     1.3    75.4    -      -       -      +
    191A  ARG*     1.3    77.1    +      -       -      +
    193A  ALA*     2.9    21.8    +      -       -      +
    194A  PHE*     3.0    34.1    +      -       +      -
    202A  GLY      4.1     6.1    -      -       -      +
    205A  PHE*     3.7    19.0    -      -       +      -
    206A  ASN*     3.1    23.6    +      -       -      -
     76B  GLU*     3.2    24.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126A  ARG*     6.1     0.4    -      -       -      +
    127A  ILE*     3.6    36.9    -      -       +      +
    187A  MET*     2.9    66.3    +      -       -      +
    188A  LEU*     5.0     0.2    -      -       -      -
    190A  GLN*     1.3    89.2    +      -       -      +
    192A  LEU*     1.3    60.8    +      -       -      +
    194A  PHE*     3.4     4.6    +      -       -      +
    195A  HIS*     2.8    37.3    +      -       +      +
     76B  GLU*     5.7     4.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  PHE*     3.6    13.8    -      -       +      +
    113A  MET*     4.1    19.3    -      -       +      -
    116A  ALA*     3.6    23.7    -      -       +      +
    117A  PHE*     4.2    11.0    -      -       +      -
    124A  ALA*     3.8    30.5    -      -       +      -
    127A  ILE*     3.9    15.3    -      -       +      -
    128A  MET*     4.0    26.5    -      -       +      -
    188A  LEU*     2.9    41.0    +      -       +      +
    189A  PHE*     3.9     3.8    -      -       -      +
    191A  ARG*     1.3    78.0    -      -       -      +
    193A  ALA*     1.3    61.5    +      -       -      +
    195A  HIS*     3.4    11.1    +      -       +      +
    196A  SER      3.8     1.4    +      -       -      -
    236A  LEU*     5.0     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  PHE*     3.4    16.4    -      -       +      -
    189A  PHE      2.9    19.0    +      -       -      +
    190A  GLN      2.9     8.1    +      -       -      +
    192A  LEU*     1.3    76.9    -      -       -      +
    194A  PHE*     1.3    56.4    +      -       -      +
    195A  HIS      3.5     0.2    -      -       -      -
    196A  SER*     2.9    18.6    +      -       -      -
    198A  ASN      3.6     1.7    -      -       -      +
    201A  TYR*     3.4    37.4    -      -       +      +
    202A  GLY*     3.5     6.3    +      -       -      +
    205A  PHE*     3.6    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  GLN*     3.0    36.0    +      -       -      +
    191A  ARG*     4.0     6.3    -      -       -      +
    192A  LEU      3.2     0.2    -      -       -      -
    193A  ALA*     1.3    76.5    -      -       -      +
    195A  HIS*     1.3    62.3    +      -       +      +
    196A  SER      3.0    10.0    +      -       -      -
    197A  GLY*     3.5    10.7    +      -       -      -
    198A  ASN      4.6     3.8    +      -       -      +
    199A  GLN*     3.6    34.3    -      -       +      -
    202A  GLY*     3.4    20.2    -      -       -      -
    203A  LEU*     3.7    13.0    -      -       +      -
    206A  ASN*     3.1    27.6    -      -       -      -
     75B  MET*     3.1    29.2    -      -       +      -
     76B  GLU*     4.1     8.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A  TYR      4.6     0.2    -      -       -      +
    116A  ALA*     3.2    24.6    -      -       +      -
    119A  LEU*     5.0     1.0    -      -       -      +
    120A  ASN*     3.5    37.4    +      -       +      +
    123A  SER*     3.7    34.4    -      -       -      -
    124A  ALA*     5.6     1.1    -      -       +      -
    126A  ARG*     4.2    13.9    +      -       -      -
    127A  ILE*     4.7    11.6    -      -       +      +
    191A  ARG*     2.8    32.2    +      -       +      +
    192A  LEU*     3.4     9.7    +      -       +      +
    194A  PHE*     1.3    80.2    -      -       +      +
    196A  SER*     1.3    58.3    +      -       -      +
    197A  GLY      3.3     2.2    -      -       -      +
----------------------------------------------------------
 Back to top of page


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