Contacts of the helix formed by residues 222 - 254 (chain E) in PDB entry 2QJK


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 LYS 222 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84D  MET      4.0    12.3    -      -       -      +
     85D  ARG*     3.1    27.4    +      -       -      +
     86D  ASN      5.8     1.3    -      -       -      -
     87D  VAL      5.8     2.9    -      -       -      -
     91D  PHE*     3.2    45.8    -      -       +      -
     52E  GLU*     3.4    24.4    +      -       -      +
    220E  GLU*     3.1     8.0    +      -       -      +
    221E  PRO*     1.3    92.1    -      -       +      +
    223E  LEU*     1.3    67.3    +      -       -      +
    224E  MET      3.5     1.1    -      -       -      -
    225E  ALA*     3.3    10.6    +      -       +      -
    226E  ARG*     3.0    20.6    +      -       -      +
     42F  ALA*     5.5     2.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 223 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    431D  BGL      5.6     2.5    -      -       -      +
     13E  PHE*     4.4    19.3    -      -       +      +
     18E  GLY      5.1     1.8    -      -       -      +
     19E  THR*     6.4     0.2    -      -       -      -
     20E  PHE*     3.7    30.7    -      -       +      -
    216E  MET*     4.4    20.0    -      -       +      -
    220E  GLU*     2.9    21.0    +      -       +      +
    221E  PRO      3.2     2.6    +      -       -      -
    222E  LYS*     1.3    74.7    -      -       -      +
    224E  MET*     1.3    70.0    +      -       +      +
    226E  ARG*     2.9    47.0    +      -       -      +
    227E  LYS*     3.0    42.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 224 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18E  GLY      4.8     2.2    -      -       -      +
     19E  THR*     3.5    40.4    -      -       +      -
     20E  PHE*     3.9    27.3    -      -       +      +
     54E  GLY*     3.8    35.0    -      -       -      +
    221E  PRO      4.9     1.7    +      -       -      +
    222E  LYS      3.5     0.2    -      -       -      -
    223E  LEU*     1.3    83.4    -      -       +      +
    225E  ALA*     1.3    64.4    +      -       -      +
    227E  LYS*     3.1     6.9    +      -       -      +
    228E  GLN*     2.9    46.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 225 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  PHE*     3.8    22.2    -      -       +      -
    222E  LYS*     3.3    18.5    +      -       +      +
    223E  LEU      3.2     0.4    -      -       -      -
    224E  MET*     1.3    76.6    -      -       -      +
    226E  ARG*     1.3    59.3    +      -       -      +
    228E  GLN*     3.2    12.0    +      -       -      +
    229E  ALA*     2.8    31.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 226 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  PHE*     3.6    16.5    -      -       +      -
     92D  MET*     3.5    22.2    -      -       +      +
     95D  TYR*     3.5    26.6    -      -       -      -
    267D  VAL      3.8     5.2    -      -       -      +
    268D  GLY*     2.8    28.7    +      -       -      +
    269D  PHE      3.8    15.0    +      -       -      -
    271D  PRO*     3.7    14.3    -      -       -      +
    272D  ASN*     5.1     0.8    -      -       -      +
    431D  BGL      5.3     3.2    +      -       -      -
    220E  GLU*     2.4    38.4    +      -       -      +
    222E  LYS      3.0     9.7    +      -       -      +
    223E  LEU*     2.9    40.7    +      -       -      +
    225E  ALA*     1.3    78.5    -      -       -      +
    227E  LYS*     1.3    61.5    +      -       -      +
    229E  ALA*     3.1     6.5    -      -       -      +
    230E  GLY*     2.9    21.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 227 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268D  GLY      4.2    10.3    -      -       -      +
    269D  PHE*     3.9    18.2    -      -       +      -
    431D  BGL      3.6    29.6    +      -       -      -
     13E  PHE      2.9    22.4    +      -       -      -
     15E  GLY      2.5    27.8    +      -       -      -
     16E  PRO*     3.6    18.6    -      -       -      +
     18E  GLY      4.0    12.4    +      -       -      +
    223E  LEU*     3.0    32.9    +      -       +      +
    224E  MET*     3.7     8.1    -      -       -      +
    226E  ARG*     1.3    80.3    -      -       -      +
    228E  GLN*     1.3    60.5    +      -       +      +
    230E  GLY*     2.8    23.8    +      -       -      +
    231E  PHE*     3.1    16.7    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 228 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224E  MET*     2.9    47.4    +      -       +      +
    225E  ALA*     3.6     7.9    -      -       -      +
    227E  LYS*     1.3    73.1    -      -       +      +
    229E  ALA*     1.3    67.1    +      -       -      +
    230E  GLY      3.0     0.7    +      -       -      -
    231E  PHE*     3.3    16.8    +      -       +      +
    232E  THR*     3.0    24.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 229 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  PHE*     5.2     3.1    -      -       +      -
     92D  MET*     4.2    21.5    -      -       +      -
    225E  ALA      2.8    13.8    +      -       -      +
    226E  ARG*     3.1    15.3    -      -       -      +
    228E  GLN*     1.3    76.6    -      -       -      +
    230E  GLY*     1.3    66.7    +      -       -      +
    232E  THR*     3.3     7.6    -      -       -      -
    233E  ALA*     3.0    21.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 230 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264D  PHE      5.2     2.9    -      -       -      -
    268D  GLY*     4.4    14.1    -      -       -      -
    269D  PHE*     4.2     9.6    -      -       -      -
    226E  ARG      2.9    10.1    +      -       -      -
    227E  LYS      2.8    10.8    +      -       -      -
    229E  ALA*     1.3    72.7    -      -       -      +
    231E  PHE*     1.3    69.6    +      -       -      +
    233E  ALA*     2.9    18.3    +      -       -      +
    234E  VAL*     3.0    18.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 231 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269D  PHE*     3.9    14.4    -      +       -      -
     16E  PRO*     3.3    20.9    -      -       +      -
     17E  PHE*     2.9    51.1    -      +       -      -
    227E  LYS*     3.1    32.6    +      -       +      -
    228E  GLN*     3.8    16.2    -      -       +      +
    230E  GLY*     1.3    71.2    -      -       -      +
    232E  THR*     1.3    67.5    +      -       -      +
    234E  VAL*     2.9     9.1    +      -       -      +
    235E  MET*     2.7    37.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 232 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228E  GLN      3.0    12.5    +      -       -      -
    229E  ALA*     3.3    12.6    -      -       -      +
    230E  GLY      2.9     0.2    +      -       -      -
    231E  PHE*     1.3    77.0    -      -       -      +
    233E  ALA*     1.3    66.9    +      -       -      +
    235E  MET*     2.8    21.2    +      -       -      +
    236E  PHE*     3.0    41.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 233 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264D  PHE*     3.7    41.7    -      -       +      -
    229E  ALA      3.0     8.1    +      -       -      +
    230E  GLY*     2.9    12.3    +      -       -      +
    232E  THR*     1.3    76.7    -      -       -      +
    234E  VAL*     1.3    64.1    +      -       -      +
    236E  PHE*     3.6     8.5    +      -       -      +
    237E  LEU*     3.0    33.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 234 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261D  LEU*     3.3    30.7    -      -       +      +
    264D  PHE*     5.3     0.4    -      -       +      -
    265D  ALA*     4.6    19.3    -      -       +      +
    269D  PHE*     4.3    17.3    -      -       +      -
    230E  GLY      3.0    17.7    +      -       -      +
    231E  PHE*     2.9     8.4    +      -       -      +
    233E  ALA*     1.3    76.6    -      -       +      +
    235E  MET*     1.3    66.2    +      -       +      +
    237E  LEU*     3.4     1.5    -      -       -      +
    238E  THR*     2.5    47.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 235 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231E  PHE*     2.7    34.9    +      -       +      +
    232E  THR*     2.8    11.0    +      -       -      +
    234E  VAL*     1.3    91.7    -      -       +      +
    236E  PHE*     1.3    72.2    +      -       +      +
    238E  THR*     3.7     9.5    -      -       +      +
    239E  VAL*     2.9    30.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 236 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232E  THR*     3.0    45.6    +      -       +      -
    233E  ALA*     3.7     9.9    -      -       -      +
    235E  MET*     1.3    79.2    -      -       +      +
    237E  LEU*     1.3    56.5    -      -       +      +
    239E  VAL*     3.2     4.6    +      -       -      +
    240E  LEU*     2.7    40.1    +      -       +      +
     22F  ALA*     4.9     6.4    -      -       +      +
     25F  VAL*     3.1    37.2    -      -       +      -
     26F  ALA*     4.0    24.2    -      -       +      -
     29F  ALA*     4.3    21.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 237 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257D  ALA*     3.9    24.9    -      -       +      +
    260D  LEU*     4.0    22.2    -      -       +      +
    261D  LEU*     4.1    17.5    -      -       +      +
    264D  PHE*     3.7    33.7    -      -       +      -
    233E  ALA*     3.0    23.7    +      -       -      +
    234E  VAL      3.6     2.0    -      -       -      +
    235E  MET      3.1     0.4    -      -       -      -
    236E  PHE*     1.3    81.4    -      -       +      +
    238E  THR*     1.3    55.0    +      -       -      +
    240E  LEU*     4.0    18.2    -      -       +      -
    241E  SER*     2.4    42.8    +      -       -      -
     26F  ALA*     6.2     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 238 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261D  LEU*     3.6    16.1    -      -       +      +
    234E  VAL*     2.5    44.7    +      -       -      +
    235E  MET*     3.7    11.8    -      -       +      +
    237E  LEU*     1.3    72.2    -      -       -      +
    239E  VAL*     1.3    62.6    +      -       +      +
    241E  SER*     3.4     6.4    -      -       -      -
    242E  VAL*     3.0    34.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 239 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235E  MET*     2.9    19.6    +      -       +      +
    236E  PHE*     3.3     7.6    -      -       -      +
    238E  THR*     1.3    74.9    -      -       +      +
    240E  LEU*     1.3    60.0    +      -       -      +
    241E  SER      2.8     3.6    -      -       -      -
    242E  VAL*     2.7    31.4    +      -       +      +
    243E  LEU*     2.8    31.1    +      -       +      -
     22F  ALA*     5.2     5.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 240 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253D  VAL*     6.3     0.2    -      -       +      -
    257D  ALA*     4.8     4.5    -      -       +      -
    236E  PHE*     2.7    23.2    +      -       +      +
    237E  LEU*     3.7    22.9    -      -       +      +
    239E  VAL*     1.3    76.3    -      -       -      +
    241E  SER*     1.3    56.4    +      -       -      +
    243E  LEU*     3.9     7.2    -      -       +      -
    244E  LEU*     2.9    60.0    +      -       +      +
     19F  THR*     4.4     9.0    -      -       +      +
     22F  ALA*     3.9    24.7    -      -       +      +
     23F  GLY*     4.1    15.3    -      -       -      +
     26F  ALA*     4.6    20.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 241 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254D  PHE*     3.8    13.6    -      -       -      -
    257D  ALA*     3.8    24.4    -      -       -      +
    258D  VAL*     4.0    13.0    +      -       -      -
    261D  LEU*     4.3     6.8    -      -       -      +
    237E  LEU      2.4    31.4    +      -       -      -
    238E  THR*     3.4     8.8    -      -       -      -
    239E  VAL      2.8     0.4    +      -       -      -
    240E  LEU*     1.3    70.5    -      -       -      +
    242E  VAL*     1.3    56.0    +      -       -      -
    244E  LEU*     3.2     3.4    +      -       -      +
    245E  TYR*     2.7    37.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 242 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238E  THR*     3.0    23.6    -      -       +      +
    239E  VAL*     2.7    13.6    +      -       -      +
    241E  SER*     1.3    73.6    -      -       -      +
    243E  LEU*     1.3    66.4    +      -       +      +
    245E  TYR*     3.1    15.8    +      -       +      +
    246E  LEU*     3.0    38.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 243 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239E  VAL*     2.8    32.4    +      -       +      +
    240E  LEU*     3.8     7.4    -      -       +      +
    242E  VAL*     1.3    78.6    -      -       +      +
    244E  LEU*     1.3    59.7    +      -       +      +
    245E  TYR      3.0     0.9    +      -       -      -
    246E  LEU*     3.0    13.8    +      -       +      +
    247E  THR*     2.7    30.9    +      -       -      -
     14F  PHE*     5.8     2.7    -      -       +      -
     15F  LEU*     4.1    20.9    -      -       +      +
     18F  ALA*     3.6    34.5    -      -       +      +
     19F  THR*     3.3    17.7    -      -       -      +
     22F  ALA*     4.2    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 244 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250D  ILE*     4.5    12.6    -      -       +      +
    253D  VAL*     3.6    39.0    -      -       +      +
    254D  PHE*     4.0    18.0    -      -       +      +
    257D  ALA*     4.1    14.1    -      -       +      -
    240E  LEU*     2.9    52.6    +      -       +      +
    241E  SER      3.6     3.6    -      -       -      +
    243E  LEU*     1.3    73.7    -      -       -      +
    245E  TYR*     1.3    56.5    +      -       -      +
    247E  THR*     3.4     9.6    -      -       +      +
    248E  ASN*     2.8    30.7    +      -       -      +
     19F  THR*     4.6    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 245 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254D  PHE*     3.9    34.5    -      +       +      -
    241E  SER      2.7    17.9    +      -       -      +
    242E  VAL*     3.2    14.1    -      -       +      +
    244E  LEU*     1.3    69.6    -      -       -      +
    246E  LEU*     1.3    73.8    +      -       +      +
    248E  ASN*     3.1     7.7    +      -       +      +
    249E  LYS*     2.7    72.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 246 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242E  VAL*     3.0    30.3    -      -       +      +
    243E  LEU*     3.0     9.6    +      -       +      +
    245E  TYR*     1.3    93.0    -      -       +      +
    247E  THR*     1.3    69.9    +      -       -      +
    248E  ASN      3.0     0.5    +      -       -      -
    249E  LYS*     3.0     9.4    +      -       +      -
    250E  ARG*     2.7    42.8    +      -       -      +
     15F  LEU*     3.8    30.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 247 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250D  ILE*     3.9    23.7    -      -       +      +
    243E  LEU      2.7    19.4    +      -       -      -
    244E  LEU*     3.4    12.9    -      -       +      -
    246E  LEU*     1.3    75.3    -      -       -      +
    248E  ASN*     1.3    62.9    +      -       -      +
    250E  ARG*     3.7     2.7    +      -       -      +
    251E  LEU*     3.1    23.4    +      -       -      +
     15F  LEU*     3.6    15.0    -      -       -      +
     16F  TYR*     4.2    28.8    +      -       +      -
     19F  THR*     3.1    28.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 248 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43D  TRP*     4.7     7.5    -      -       -      -
    250D  ILE*     3.2    25.3    -      -       +      +
    251D  LYS*     3.3    23.3    +      -       -      +
    254D  PHE*     4.6    13.7    -      -       +      -
    244E  LEU      2.8    14.7    +      -       -      +
    245E  TYR*     3.3    13.9    +      -       -      +
    246E  LEU      3.0     0.2    -      -       -      -
    247E  THR*     1.3    74.7    -      -       -      +
    249E  LYS*     1.3    70.7    +      -       -      +
    251E  LEU*     2.9    15.5    +      -       -      +
    252E  TRP*     2.9    43.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 249 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245E  TYR*     2.7    56.5    +      -       +      +
    246E  LEU*     3.5     9.4    -      -       +      +
    248E  ASN*     1.3    75.6    -      -       -      +
    250E  ARG*     1.3    59.5    +      -       +      +
    252E  TRP*     4.2     3.0    -      -       -      +
    253E  ALA*     2.8    35.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 250 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246E  LEU*     2.7    33.6    +      -       -      +
    247E  THR*     4.0     3.4    -      -       -      +
    249E  LYS*     1.3    72.4    -      -       +      +
    251E  LEU*     1.3    65.8    +      -       -      +
    253E  ALA*     3.3    18.4    +      -       -      +
    254E  GLY*     3.6     4.2    +      -       -      -
     11F  ARG      3.9    10.9    +      -       -      -
     12F  ARG*     2.9    67.8    -      -       -      +
     14F  PHE*     6.0     0.2    -      -       -      -
     15F  LEU*     3.6    33.5    -      -       +      +
     16F  TYR*     5.2     6.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 251 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246D  PRO*     3.3    42.8    -      -       +      +
    247D  TYR*     3.2    41.2    +      -       +      +
    250D  ILE*     3.7    25.1    -      -       +      -
    247E  THR      3.1    17.5    +      -       -      +
    248E  ASN*     2.9    10.6    +      -       -      +
    250E  ARG*     1.3    74.0    -      -       -      +
    252E  TRP*     1.3    62.0    +      -       +      +
    254E  GLY*     3.4    10.0    +      -       -      -
     16F  TYR*     4.4    16.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 252 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39D  ARG*     4.2    15.7    -      -       -      -
    242D  VAL*     3.9    28.9    -      -       +      -
    247D  TYR*     3.0    44.3    +      +       +      -
    248D  PHE*     3.6    39.9    -      +       -      -
    251D  LYS*     3.6    13.7    -      -       +      +
    428D  PHE*     4.6    12.8    -      +       -      -
    248E  ASN*     2.9    44.1    +      -       -      +
    249E  LYS*     4.2     3.6    -      -       -      +
    251E  LEU*     1.3    74.1    -      -       +      +
    253E  ALA*     1.3    64.3    +      -       -      +
    254E  GLY      2.8     6.9    +      -       -      -
    255E  VAL*     2.8    24.8    +      -       +      +
    256E  LYS*     3.3    15.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 253 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249E  LYS*     2.8    23.7    +      -       +      +
    250E  ARG*     3.4    10.5    -      -       -      +
    252E  TRP*     1.3    77.0    -      -       -      +
    254E  GLY*     1.3    57.0    +      -       -      +
    255E  VAL      3.1     5.4    +      -       -      -
    256E  LYS      3.9    18.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 254 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247D  TYR*     4.9     3.6    +      -       -      -
    250E  ARG      3.6     3.9    +      -       -      -
    251E  LEU      3.4     8.7    +      -       -      -
    252E  TRP      2.8     2.8    +      -       -      -
    253E  ALA*     1.3    78.4    -      -       -      +
    255E  VAL*     1.3    64.7    +      -       -      +
----------------------------------------------------------
 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