Contacts of the helix formed by residues 229 - 257 (chain A) in PDB entry 6B3I


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 SER 229 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  GLU      5.5     0.2    -      -       -      -
    228A  THR*     1.3    80.7    +      -       -      +
    230A  GLY*     1.3    69.8    +      -       -      +
    232A  LEU*     3.5    13.4    +      -       -      +
    233A  GLN*     3.4    14.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  SER*     1.3    75.7    -      -       -      +
    231A  ASP*     1.3    65.6    +      -       -      -
    233A  GLN*     3.3    16.5    +      -       -      +
    234A  LYS*     3.4    10.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  THR      5.3     1.6    -      -       -      +
    105A  ASP*     4.5     5.1    -      -       -      +
    106A  GLU*     3.4    35.0    +      -       -      +
    110A  ILE*     3.4    15.0    -      -       +      +
    148A  LEU*     3.7    22.4    -      -       +      -
    230A  GLY*     1.3    74.0    -      -       -      -
    232A  LEU*     1.3    59.6    +      -       -      +
    234A  LYS*     3.2    18.7    +      -       -      +
    235A  ALA*     2.9    25.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147A  ASN*     4.3    12.1    -      -       +      +
    148A  LEU*     4.2    29.8    -      -       +      +
    151A  ILE*     4.5     5.8    -      -       +      -
    190A  GLU*     3.3    42.6    -      -       +      +
    194A  ASN*     4.5     1.1    -      -       -      +
    228A  THR*     4.4     8.5    -      -       +      -
    229A  SER      3.5    11.0    +      -       -      +
    230A  GLY      3.2     0.6    -      -       -      -
    231A  ASP*     1.3    78.8    -      -       -      +
    233A  GLN*     1.3    61.8    +      -       -      +
    235A  ALA*     3.4     4.3    +      -       +      +
    236A  TYR*     3.1    56.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  ILE*     4.2     5.6    -      -       +      -
    225A  GLU*     3.7    26.9    -      -       -      +
    228A  THR*     3.2    39.6    +      -       -      +
    229A  SER*     3.4    12.1    +      -       -      +
    230A  GLY      3.3    12.1    +      -       -      +
    231A  ASP      3.2     0.4    -      -       -      -
    232A  LEU*     1.3    79.0    -      -       -      +
    234A  LYS*     1.3    57.7    +      -       -      +
    236A  TYR*     3.1     2.3    +      -       -      +
    237A  LEU*     2.9    53.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  ASP*     3.9     8.5    +      -       -      -
    106A  GLU      4.9     0.2    -      -       -      -
    107A  SER*     3.0    34.3    +      -       -      +
    110A  ILE*     4.0    20.9    -      -       +      -
    230A  GLY      3.4     8.7    +      -       -      +
    231A  ASP*     3.2    23.3    +      -       -      +
    233A  GLN*     1.3    81.9    -      -       -      +
    235A  ALA*     1.3    53.5    +      -       -      +
    237A  LEU*     4.3     6.0    -      -       -      +
    238A  THR*     2.6    45.1    +      -       -      +
    249A  TYR*     6.0     0.2    -      -       -      +
    253A  ARG*     5.8     5.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ILE*     3.7    17.6    -      -       +      +
    114A  CYS*     4.0     8.0    -      -       -      -
    148A  LEU*     3.9    20.4    -      -       +      -
    151A  ILE*     4.7    14.1    -      -       +      -
    152A  LEU*     5.3     1.1    -      -       +      -
    231A  ASP      2.9    15.9    +      -       -      +
    232A  LEU*     3.7     6.1    -      -       -      +
    234A  LYS*     1.3    77.7    -      -       -      +
    236A  TYR*     1.3    66.0    +      -       +      +
    238A  THR*     3.5     1.9    +      -       -      -
    239A  LEU*     3.1    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 236 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  ILE*     4.8     8.1    -      -       +      -
    190A  GLU*     3.0    20.6    +      -       +      +
    193A  PHE*     3.5    30.7    -      +       +      +
    194A  ASN*     2.3    34.4    +      -       -      -
    197A  LEU*     3.6    18.5    -      -       +      +
    224A  ILE*     3.7    22.7    -      -       +      -
    228A  THR*     3.5    33.9    -      -       +      -
    232A  LEU*     3.1    37.7    +      -       +      +
    233A  GLN      3.1     6.0    +      -       -      +
    235A  ALA*     1.3    76.0    -      -       +      +
    237A  LEU*     1.3    60.2    -      -       -      +
    239A  LEU*     3.1     9.9    +      -       +      +
    240A  VAL*     2.9    31.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  GLU*     4.0    31.9    -      -       +      +
    224A  ILE*     3.7    31.4    -      -       +      -
    225A  GLU*     4.1    15.3    -      -       +      +
    233A  GLN*     2.9    48.6    +      -       +      +
    234A  LYS*     4.3     5.2    -      -       -      +
    236A  TYR*     1.3    73.5    -      -       -      +
    238A  THR*     1.3    57.5    +      -       -      +
    240A  VAL*     3.9     3.0    -      -       -      +
    241A  ARG*     2.9    43.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ILE*     3.9    14.4    -      -       +      +
    111A  GLU*     4.7     0.2    -      -       -      -
    114A  CYS*     3.6    24.5    -      -       +      +
    115A  THR*     4.3     4.3    -      -       +      -
    234A  LYS*     2.6    30.5    +      -       -      +
    235A  ALA      3.8     4.5    -      -       -      -
    237A  LEU*     1.3    74.7    -      -       -      +
    239A  LEU*     1.3    65.9    +      -       -      +
    241A  ARG*     4.0     0.5    -      -       -      +
    242A  CYS*     3.0    25.1    +      -       -      +
    249A  TYR*     3.3    47.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  CYS*     3.7    36.6    -      -       +      +
    151A  ILE*     4.3    24.9    -      -       +      -
    155A  LEU*     4.1     7.0    -      -       +      -
    160A  ARG*     3.6    25.6    -      -       -      +
    197A  LEU*     3.8    38.8    -      -       +      +
    198A  ALA      4.8     0.2    -      -       -      +
    202A  TYR*     5.2     3.4    -      -       +      +
    205A  LEU*     5.0     3.0    -      -       -      +
    235A  ALA      3.1    23.2    +      -       -      +
    236A  TYR*     3.5     8.5    -      -       +      +
    238A  THR*     1.3    77.5    -      -       -      +
    240A  VAL*     1.3    61.6    +      -       -      +
    242A  CYS*     4.4     0.3    -      -       -      +
    243A  ALA*     3.1    26.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  LEU*     4.1    11.4    -      -       +      -
    209A  PHE*     3.6    38.3    -      -       +      -
    220A  ILE*     3.7    19.1    -      -       +      -
    221A  GLU*     3.9    21.3    -      -       +      +
    224A  ILE*     3.7    22.4    -      -       +      -
    236A  TYR      2.9    18.8    +      -       -      +
    237A  LEU*     3.9     6.5    -      -       -      +
    239A  LEU*     1.3    77.7    -      -       -      +
    241A  ARG*     1.3    57.0    +      -       -      +
    243A  ALA*     3.4     2.8    +      -       -      +
    244A  GLN*     2.8    31.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  GLU*     3.4    27.8    +      -       -      +
    237A  LEU*     2.9    26.8    +      -       +      +
    238A  THR      4.2     0.2    -      -       -      +
    240A  VAL*     1.3    76.9    -      -       -      +
    242A  CYS*     1.3    54.5    +      -       -      +
    244A  GLN*     4.4     4.3    -      -       -      -
    245A  ASP*     2.7    39.9    +      -       -      +
    248A  ASP*     2.6    42.4    +      -       -      -
    249A  TYR*     3.9    32.1    -      -       +      +
    252A  GLU*     2.6    41.2    +      -       -      +
    290A  LYS*     4.4     3.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  CYS      3.8    10.3    -      -       -      +
    115A  THR*     3.8    27.6    -      -       +      -
    202A  TYR*     4.4    18.8    -      -       +      +
    238A  THR      3.0    18.5    +      -       -      +
    239A  LEU      4.4     0.9    -      -       -      +
    241A  ARG*     1.3    74.5    -      -       -      +
    243A  ALA*     1.3    66.5    +      -       -      +
    245A  ASP      3.8     0.2    +      -       -      -
    246A  CYS*     2.0    65.9    +      -       -      +
    249A  TYR*     4.7     4.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  TYR*     3.7    36.6    -      -       +      +
    205A  LEU*     3.8    27.8    -      -       +      -
    206A  ARG*     3.3    26.2    +      -       -      +
    209A  PHE*     4.4     4.0    -      -       +      -
    239A  LEU      3.1    20.6    +      -       -      +
    240A  VAL      3.7     2.9    -      -       -      +
    242A  CYS*     1.3    77.6    -      -       -      +
    244A  GLN*     1.3    60.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  ARG*     4.1    30.2    +      -       -      +
    209A  PHE*     3.4    33.9    -      -       +      +
    210A  GLN*     6.0     3.7    -      -       -      +
    221A  GLU*     5.8     2.7    -      -       -      +
    240A  VAL*     2.8    20.9    +      -       +      +
    241A  ARG*     3.9     5.2    -      -       -      +
    242A  CYS      4.2     0.2    -      -       -      -
    243A  ALA*     1.3    79.8    -      -       -      +
    245A  ASP*     1.3    65.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241A  ARG*     2.7    19.7    +      -       -      +
    244A  GLN*     1.3    81.7    -      -       +      +
    246A  CYS*     1.3    61.7    +      -       -      +
    247A  GLU*     3.4    14.4    -      -       -      +
    248A  ASP*     3.2    30.6    +      -       +      +
    249A  TYR      3.1    16.5    +      -       -      -
    286A  LYS*     3.2    28.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A  THR*     3.9     4.5    -      -       -      -
    242A  CYS*     2.0    59.3    +      -       -      +
    245A  ASP*     1.3    71.5    +      -       -      +
    247A  GLU*     1.3    71.5    +      -       -      +
    249A  TYR*     3.3     4.3    +      -       -      +
    250A  PHE*     3.2    53.6    +      -       -      -
    275A  ARG*     4.3    11.2    -      -       -      +
    279A  ASP*     4.6     2.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  ASP*     3.4    13.7    -      -       -      +
    246A  CYS*     1.3    82.2    +      -       -      +
    248A  ASP*     1.3    56.8    +      -       -      +
    250A  PHE      3.8     0.3    +      -       -      -
    251A  ALA*     3.2    24.9    +      -       -      +
    279A  ASP*     3.4    30.2    -      -       +      +
    282A  GLY*     3.7    37.5    -      -       -      +
    283A  ILE*     4.0    15.0    -      -       -      +
    286A  LYS*     3.9    15.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241A  ARG*     2.6    34.8    +      -       -      -
    245A  ASP*     3.2    34.3    +      -       +      +
    246A  CYS      3.2     0.2    -      -       -      -
    247A  GLU*     1.3    74.0    -      -       -      +
    249A  TYR*     1.3    65.7    +      -       -      +
    251A  ALA*     3.3     6.2    +      -       -      +
    252A  GLU*     3.1    17.7    +      -       -      +
    286A  LYS*     4.3    12.8    -      -       +      +
    290A  LYS*     3.0    35.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ILE*     5.6     0.2    -      -       -      +
    111A  GLU*     4.1    12.9    -      -       +      +
    115A  THR*     4.0    25.4    -      -       +      -
    234A  LYS*     6.0     0.3    -      -       -      +
    237A  LEU      5.7     0.2    -      -       -      -
    238A  THR*     3.3    37.7    +      -       +      +
    241A  ARG*     3.9    43.2    -      -       +      +
    242A  CYS      4.7     3.1    -      -       -      +
    245A  ASP      3.1    12.1    +      -       -      +
    246A  CYS*     3.3    11.6    +      -       -      +
    248A  ASP*     1.3    77.1    +      -       -      +
    250A  PHE*     1.3    76.2    +      +       -      +
    252A  GLU*     3.2     5.9    +      -       -      +
    253A  ARG*     3.0    64.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111A  GLU*     4.2    20.6    -      -       +      -
    115A  THR*     3.7    27.1    -      -       +      -
    116A  ARG*     4.3     4.0    -      -       -      -
    246A  CYS*     3.2    38.2    +      -       -      +
    249A  TYR*     1.3    92.2    -      +       -      +
    251A  ALA*     1.3    60.5    +      -       -      +
    252A  GLU      3.3     0.2    -      -       -      -
    253A  ARG*     3.9     3.3    -      -       +      +
    254A  LEU*     3.0    33.4    +      -       -      +
    271A  ILE*     3.8    27.5    -      -       +      +
    275A  ARG*     3.5    43.7    -      -       +      -
    279A  ASP*     4.6     0.4    -      -       -      -
    283A  ILE*     3.6    30.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  GLU      3.2    19.5    +      -       -      +
    248A  ASP*     3.5    10.3    -      -       -      +
    249A  TYR      3.2     0.8    -      -       -      -
    250A  PHE*     1.3    78.0    -      -       -      +
    252A  GLU*     1.3    57.6    +      -       -      +
    254A  LEU*     3.9     0.6    -      -       -      +
    255A  TYR*     3.1    22.2    +      -       -      +
    283A  ILE*     4.1     7.6    -      -       -      +
    286A  LYS      4.4     2.5    -      -       -      -
    287A  PHE*     3.4    47.6    -      -       +      +
    290A  LYS*     4.4     8.7    -      -       +      -
    291A  TYR*     3.6     2.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241A  ARG*     2.6    36.6    +      -       -      +
    248A  ASP      3.1    11.8    +      -       -      +
    249A  TYR*     3.2     7.4    +      -       -      +
    251A  ALA*     1.3    75.5    -      -       -      +
    253A  ARG*     1.3    63.2    +      -       +      +
    255A  TYR*     2.9     2.1    +      -       -      +
    256A  LYS*     2.8    69.7    +      -       +      +
    290A  LYS*     4.3    10.0    +      -       -      +
    291A  TYR*     3.3    19.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107A  SER*     5.0    18.0    +      -       -      -
    111A  GLU*     3.2    26.3    +      -       -      +
    234A  LYS*     5.8     5.7    -      -       -      +
    249A  TYR*     3.0    60.1    +      -       +      +
    250A  PHE*     4.1     2.7    -      -       -      +
    252A  GLU*     1.3    79.3    -      -       +      +
    254A  LEU*     1.3    61.0    +      -       -      +
    256A  LYS*     4.6     4.4    -      -       -      +
    257A  SER*     3.1    26.7    +      -       -      -
    264A  ASP*     4.9     1.8    +      -       -      -
    267A  THR*     3.5    33.6    +      -       -      +
    270A  ARG*     4.2     2.2    -      -       -      +
    271A  ILE*     3.9    13.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  PHE      3.0    21.7    +      -       -      +
    251A  ALA*     3.9     5.6    -      -       -      +
    253A  ARG*     1.3    75.6    -      -       -      +
    255A  TYR*     1.3    62.0    +      -       -      +
    257A  SER*     2.7    16.4    +      -       -      -
    258A  MET*     3.2    18.9    -      -       -      +
    268A  LEU*     4.1    31.9    -      -       +      +
    271A  ILE*     3.8    37.5    -      -       +      -
    272A  ILE*     4.4     9.4    -      -       +      -
    280A  LEU*     5.4     1.6    -      -       +      -
    283A  ILE*     3.8    18.8    -      -       +      -
    287A  PHE*     4.7     0.4    -      -       -      -
    295A  LEU*     3.7    39.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  ALA      3.1    15.1    +      -       -      +
    252A  GLU      2.9     7.0    +      -       -      +
    254A  LEU*     1.3    77.0    -      -       -      +
    256A  LYS*     1.3    75.5    +      -       +      +
    258A  MET*     3.1    15.3    +      -       -      +
    259A  LYS*     3.3    47.9    +      -       +      -
    287A  PHE*     3.8     6.5    -      +       +      -
    291A  TYR*     3.4    54.6    -      +       +      -
    293A  LYS*     4.3    13.4    +      -       -      -
    298A  MET*     3.5    36.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  GLU*     2.8    54.0    +      -       +      +
    253A  ARG*     4.6     4.0    -      -       -      +
    255A  TYR*     1.3    86.2    -      -       +      +
    257A  SER*     1.3    59.2    +      -       -      +
    258A  MET      3.1     1.9    +      -       -      -
    259A  LYS*     3.7    15.0    +      -       +      +
    401A  EDO      4.0    15.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253A  ARG*     3.1    18.5    +      -       -      -
    254A  LEU*     2.7    24.3    +      -       -      -
    256A  LYS*     1.3    75.8    -      -       -      +
    258A  MET*     1.3    61.3    +      -       -      +
    263A  THR*     3.4     3.5    -      -       -      +
    264A  ASP*     2.8    54.1    +      -       -      +
    267A  THR*     4.2    17.7    -      -       -      +
    268A  LEU*     4.5     7.4    +      -       -      +
    401A  EDO      4.4     4.5    -      -       -      -
----------------------------------------------------------
 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