Contacts of the helix formed by residues 281 - 306 (chain B) in PDB entry 6I53


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 ILE 281 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143B  TYR*     3.0    31.1    +      -       +      +
    144B  PRO*     3.8    15.7    -      -       +      -
    221B  PHE*     4.3    12.8    -      -       +      -
    225B  THR*     3.4    30.1    -      -       +      +
    226B  TYR*     4.1    12.1    -      -       +      +
    268B  LEU*     3.8    35.0    -      -       +      -
    279B  LYS*     4.1    13.5    -      -       -      -
    280B  ALA*     1.3    75.1    -      -       -      +
    282B  ASP*     1.3    63.8    +      -       -      +
    283B  MET      3.3     0.7    -      -       -      -
    284B  TYR*     3.4     3.7    +      -       +      +
    285B  LEU*     3.1    34.3    +      -       +      +
    442B  TYR*     4.1     3.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 282 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  ILE*     4.3    18.0    -      -       +      +
    229A  GLN*     4.4     6.2    +      -       -      -
    265B  ASN*     4.2    15.2    +      -       -      +
    268B  LEU*     4.6     6.8    -      -       -      +
    277B  TYR      4.8     2.4    -      -       -      +
    278B  VAL*     3.8    14.6    -      -       +      +
    279B  LYS*     3.0    46.6    +      -       -      +
    281B  ILE*     1.3    82.4    -      -       -      +
    283B  MET*     1.3    57.3    +      -       -      +
    284B  TYR      3.2     2.0    -      -       -      -
    285B  LEU*     4.3     5.3    -      -       -      +
    286B  MET*     3.3    42.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 283 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    278B  VAL*     3.7    20.6    -      -       +      +
    279B  LYS      2.9    19.2    +      -       -      +
    280B  ALA*     3.9     9.6    -      -       -      +
    281B  ILE      3.3     0.4    -      -       -      -
    282B  ASP*     1.3    77.1    -      -       -      +
    284B  TYR*     1.3    58.5    +      -       -      +
    286B  MET*     5.2     0.4    -      -       -      -
    287B  GLY*     3.7     7.8    +      -       -      +
    438B  PHE*     3.6    21.2    -      -       +      -
    442B  TYR*     4.4     9.7    -      -       +      -
    446B  TYR*     3.7    24.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 284 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225B  THR      5.9     0.2    -      -       -      -
    226B  TYR*     3.5    34.3    -      +       +      -
    229B  SER*     4.1    16.6    -      -       -      -
    230B  ILE*     3.3    27.7    -      -       -      +
    281B  ILE*     3.4     8.8    +      -       +      +
    282B  ASP      3.2     0.4    -      -       -      -
    283B  MET*     1.3    78.9    -      -       -      +
    285B  LEU*     1.3    69.2    +      -       +      +
    286B  MET      3.3     1.1    -      -       -      -
    287B  GLY      3.6     0.9    -      -       -      +
    288B  CYS*     2.8    52.8    +      -       -      -
    435B  PHE*     4.1     1.7    -      -       -      -
    438B  PHE*     3.8    16.8    -      +       -      -
    439B  ASN*     3.2    28.0    +      -       -      -
    442B  TYR*     3.8    40.6    -      +       +      +
    443B  TRP*     4.5     4.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 285 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225B  THR*     4.5    10.3    -      -       -      +
    229B  SER*     4.0    24.9    -      -       -      +
    261B  MET*     3.7    16.8    -      -       +      +
    264B  ILE*     3.9    30.3    -      -       +      -
    265B  ASN*     4.5    26.0    -      -       +      +
    268B  LEU*     3.8    29.4    -      -       +      -
    281B  ILE*     3.1    20.5    +      -       +      +
    282B  ASP*     4.8     5.2    -      -       -      +
    284B  TYR*     1.3    79.5    -      -       +      +
    286B  MET*     1.3    62.7    +      -       +      +
    289B  PHE*     3.1    26.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 286 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  ILE*     3.9    28.9    -      -       +      +
    232A  LEU*     3.8    23.3    -      -       +      -
    609A  POV      3.8    37.7    -      -       +      -
    265B  ASN*     5.1    11.2    -      -       -      +
    278B  VAL*     4.8     7.9    -      -       +      -
    282B  ASP*     3.3    28.1    +      -       +      +
    283B  MET*     5.1     0.9    -      -       -      -
    285B  LEU*     1.3    79.3    -      -       +      +
    287B  GLY*     1.3    60.6    +      -       -      +
    289B  PHE*     3.5     8.8    +      -       -      +
    290B  VAL*     3.3    25.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 287 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283B  MET      3.7     6.2    +      -       -      -
    284B  TYR      3.3     7.9    +      -       -      -
    285B  LEU      3.2     0.6    -      -       -      -
    286B  MET*     1.3    78.2    -      -       -      +
    288B  CYS*     1.3    61.3    +      -       -      +
    290B  VAL*     3.2    16.0    +      -       -      +
    291B  PHE*     3.2    21.9    -      -       -      -
    438B  PHE*     3.7    25.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 288 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229B  SER*     3.5    28.0    -      -       -      +
    233B  THR*     3.8     8.8    +      -       -      +
    261B  MET*     3.7     8.7    -      -       +      -
    284B  TYR*     2.8    47.0    +      -       -      +
    287B  GLY*     1.3    69.9    -      -       -      +
    289B  PHE*     1.3    63.1    +      -       -      +
    290B  VAL      3.3     0.2    -      -       -      -
    291B  PHE*     3.6    10.4    +      -       -      +
    292B  VAL*     3.3    26.5    +      -       -      +
    435B  PHE*     3.6    27.1    -      -       -      -
    438B  PHE*     4.4     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 289 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  PRO*     6.5     0.4    -      -       +      -
    236A  MET*     3.8    45.3    -      -       +      -
    240A  LEU*     5.1     5.6    -      -       +      -
    258B  VAL*     4.0    40.4    -      -       +      -
    261B  MET*     3.9    28.0    -      -       +      +
    262B  THR*     4.3     7.0    -      -       -      -
    285B  LEU      3.1    19.1    +      -       -      +
    286B  MET*     3.6    12.3    -      -       -      +
    287B  GLY      3.2     0.4    -      -       -      -
    288B  CYS*     1.3    77.0    -      -       -      +
    290B  VAL*     1.3    61.4    +      -       +      +
    292B  VAL*     3.3     5.2    +      -       +      +
    293B  PHE*     2.8    34.8    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 290 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  MET*     6.0     4.0    -      -       +      -
    609A  POV      5.3     8.3    -      -       -      -
    286B  MET      3.3    17.0    -      -       -      +
    287B  GLY*     3.2     9.7    +      -       -      +
    289B  PHE*     1.3    80.3    -      -       +      +
    291B  PHE*     1.3    58.3    +      -       +      +
    293B  PHE*     4.2     9.0    -      -       +      -
    294B  LEU*     2.6    58.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 291 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233B  THR*     4.0    15.0    -      -       +      -
    236B  SER*     4.3     3.4    +      -       -      -
    237B  TRP*     4.5     8.9    +      +       -      +
    287B  GLY      3.2    26.2    -      -       -      -
    288B  CYS*     3.6     7.1    +      -       -      +
    290B  VAL*     1.3    79.2    -      -       +      +
    292B  VAL*     1.3    60.0    +      -       -      +
    294B  LEU*     4.2     9.7    -      -       +      +
    295B  ALA*     3.3    22.3    +      -       -      +
    431B  PHE*     5.0    20.4    -      +       -      -
    434B  THR*     3.6    30.7    -      -       +      -
    435B  PHE*     3.6    48.0    -      +       +      -
    438B  PHE*     3.7    28.5    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 292 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233B  THR*     4.1    13.2    -      -       +      +
    236B  SER*     4.1    15.8    -      -       -      +
    254B  GLY*     4.6     3.6    -      -       -      +
    257B  THR*     3.7    42.0    -      -       +      +
    258B  VAL*     3.7    25.3    -      -       +      +
    261B  MET*     3.9    13.0    -      -       +      -
    288B  CYS      3.3    14.5    +      -       -      +
    289B  PHE*     3.3    10.7    +      -       +      +
    290B  VAL      3.2     0.2    -      -       -      -
    291B  PHE*     1.3    76.8    -      -       -      +
    293B  PHE*     1.3    62.2    +      -       -      +
    295B  ALA*     3.2    12.0    +      -       -      +
    296B  LEU*     3.3    13.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 293 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  MET*     3.6    32.5    -      -       +      -
    239A  ILE*     3.6    29.4    -      -       +      -
    240A  LEU*     3.6    41.3    -      -       +      -
    243A  VAL*     5.1     0.4    -      -       +      -
    258B  VAL*     4.8     5.4    -      -       +      -
    289B  PHE*     2.8    33.2    +      +       +      +
    290B  VAL*     3.1     9.8    +      -       +      +
    292B  VAL*     1.3    75.2    -      -       -      +
    294B  LEU*     1.3    64.6    +      -       +      +
    296B  LEU*     3.5     4.0    +      -       -      +
    297B  LEU*     3.1    58.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 294 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290B  VAL*     2.6    42.7    +      -       +      +
    291B  PHE*     4.5     8.3    -      -       +      +
    293B  PHE*     1.3    74.4    -      -       +      +
    295B  ALA*     1.3    60.0    +      -       -      +
    296B  LEU      3.2     0.4    -      -       -      -
    297B  LEU*     3.8    26.2    -      -       +      +
    298B  GLU*     3.1    26.0    +      -       -      +
    431B  PHE*     4.1    24.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 295 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  SER*     3.9    28.7    -      -       -      +
    237B  TRP*     4.6     1.8    -      -       +      -
    239B  SER*     4.1    12.6    +      -       -      -
    240B  PHE*     4.0    17.5    -      -       +      -
    250B  ARG      5.7     0.5    -      -       -      +
    254B  GLY*     5.8     2.6    -      -       -      -
    291B  PHE      3.3    19.2    +      -       -      +
    292B  VAL      3.2     8.0    +      -       -      +
    294B  LEU*     1.3    76.7    -      -       -      +
    296B  LEU*     1.3    57.3    +      -       -      +
    298B  GLU*     3.8    11.6    -      -       -      +
    299B  TYR*     4.0     6.8    +      -       -      +
    431B  PHE*     4.1     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 296 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240A  LEU*     3.7    28.7    -      -       +      -
    243A  VAL*     4.8     4.4    -      -       +      +
    258A  PHE*     4.1    21.0    -      -       +      -
    250B  ARG      4.2     9.6    -      -       -      +
    251B  VAL*     4.2    13.7    -      -       +      +
    254B  GLY*     3.5    42.2    -      -       -      +
    255B  ILE*     3.7    14.8    -      -       +      -
    258B  VAL*     4.7     2.9    -      -       +      -
    292B  VAL      3.3    12.8    +      -       -      +
    293B  PHE*     4.0     5.4    -      -       -      +
    294B  LEU      3.2     0.4    -      -       -      -
    295B  ALA*     1.3    77.8    -      -       -      +
    297B  LEU*     1.3    63.5    +      -       -      +
    298B  GLU      3.1     1.5    +      -       -      -
    299B  TYR*     3.5     7.4    +      -       +      +
    300B  ALA*     3.5    18.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 297 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239A  ILE*     5.7     1.3    -      -       +      -
    243A  VAL*     3.8    31.6    -      -       +      -
    293B  PHE*     3.1    46.7    +      -       +      +
    294B  LEU*     3.8    25.8    -      -       +      +
    296B  LEU*     1.3    74.2    -      -       -      +
    298B  GLU*     1.3    59.1    +      -       -      +
    299B  TYR      3.4     0.2    -      -       -      -
    300B  ALA*     3.8     5.2    -      -       +      +
    301B  PHE*     3.0    28.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 298 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239B  SER*     5.5     0.3    +      -       -      -
    240B  PHE*     3.2    29.0    -      -       +      -
    250B  ARG*     3.0    23.0    +      -       -      -
    294B  LEU      3.1    17.9    +      -       -      +
    295B  ALA*     3.8     9.2    -      -       -      +
    296B  LEU      3.1     0.4    -      -       -      -
    297B  LEU*     1.3    76.5    -      -       -      +
    299B  TYR*     1.3    58.1    +      -       -      +
    301B  PHE*     3.3     8.2    +      -       +      +
    302B  VAL*     2.9    27.1    +      -       -      +
    423B  ILE*     3.3    25.5    -      -       +      +
    424B  ASP*     3.2    16.7    -      -       -      +
    426B  TRP*     6.1     1.1    -      -       +      -
    427B  SER*     3.7    14.1    +      -       -      +
    431B  PHE*     4.8     6.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 299 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  LEU*     4.7     3.4    -      -       +      -
    254A  ALA*     6.0     0.2    -      -       +      -
    258A  PHE*     6.0     0.9    -      +       -      -
    239B  SER*     5.8     1.6    -      -       -      +
    244B  TYR*     3.3    21.1    +      -       +      -
    246B  ALA      4.4     1.1    -      -       -      -
    247B  SER*     3.2    34.9    +      -       -      -
    250B  ARG*     3.4    59.5    -      -       +      +
    251B  VAL*     3.8    31.6    -      -       +      -
    295B  ALA      4.0     6.3    +      -       -      +
    296B  LEU*     3.5    12.2    +      -       +      +
    297B  LEU      3.4     0.2    -      -       -      -
    298B  GLU*     1.3    82.9    +      -       -      +
    300B  ALA*     1.3    54.5    +      -       +      +
    302B  VAL*     2.9     7.3    +      -       +      +
    303B  ASN*     2.5    67.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 300 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  VAL*     3.7    31.0    -      -       +      +
    246A  TRP*     4.0    12.5    -      -       +      +
    247A  LEU*     3.8    22.4    -      -       +      -
    258A  PHE*     5.8     1.1    -      -       +      -
    296B  LEU      3.5     7.9    +      -       -      +
    297B  LEU*     4.0     9.9    -      -       +      +
    298B  GLU      3.4     0.4    -      -       -      -
    299B  TYR*     1.3    78.6    -      -       +      +
    301B  PHE*     1.3    56.7    +      -       -      +
    303B  ASN      3.9     0.9    -      -       -      -
    304B  TYR*     3.3    25.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 301 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297B  LEU      3.0    17.3    +      -       -      +
    298B  GLU*     3.5     7.9    -      -       +      +
    299B  TYR      3.1     0.2    -      -       -      -
    300B  ALA*     1.3    77.4    -      -       -      +
    302B  VAL*     1.3    61.8    +      -       -      +
    304B  TYR*     3.8    11.4    +      +       -      +
    305B  ILE*     3.3    50.0    +      -       +      +
    309B  ARG*     6.3     1.1    -      -       -      -
    417B  LEU*     3.6    31.6    -      -       +      -
    423B  ILE*     3.7    22.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 302 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244B  TYR*     3.9    19.1    -      -       +      -
    250B  ARG*     4.0     7.6    -      -       -      +
    298B  GLU*     2.9    38.0    +      -       -      +
    299B  TYR*     2.9    12.8    +      -       +      +
    301B  PHE*     1.3    77.1    -      -       -      +
    303B  ASN*     1.3    61.5    +      -       -      +
    304B  TYR      3.1     2.2    +      -       -      -
    305B  ILE*     3.3     4.2    +      -       -      +
    306B  PHE*     3.3    23.4    +      -       -      +
    420B  VAL*     3.7    31.3    -      -       +      +
    423B  ILE*     4.2    20.2    -      -       +      -
    424B  ASP*     4.0     8.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 303 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  TRP      4.2     5.3    -      -       -      +
    247A  LEU*     3.4    36.0    -      -       +      +
    248A  ASN*     3.6    21.3    +      -       -      +
    251A  SER*     4.6     2.0    +      -       -      -
    244B  TYR      5.5     0.2    -      -       -      +
    247B  SER*     4.4     4.5    +      -       -      -
    299B  TYR*     2.5    51.5    +      -       +      +
    300B  ALA      4.1     0.7    -      -       -      -
    302B  VAL*     1.3    73.1    -      -       -      +
    304B  TYR*     1.3    57.2    +      -       -      +
    306B  PHE*     4.5     0.9    -      -       -      -
    307B  PHE*     3.1    44.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 304 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  TRP*     3.6    42.3    -      +       +      +
    397A  ARG*     3.3    31.2    +      -       -      -
    300B  ALA      3.3    18.9    +      -       -      +
    301B  PHE*     4.1    13.0    -      +       -      +
    302B  VAL      3.1     0.8    -      -       -      -
    303B  ASN*     1.3    78.3    -      -       -      +
    305B  ILE*     1.3    65.8    +      -       +      +
    308B  GLY*     2.8    35.3    +      -       -      +
    309B  ARG*     3.1    57.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 305 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301B  PHE*     3.3    49.3    +      -       +      +
    302B  VAL*     3.3     5.3    +      -       -      +
    304B  TYR*     1.3    80.7    -      -       +      +
    306B  PHE*     1.3    59.5    +      -       -      +
    309B  ARG*     3.4    28.1    -      -       +      +
    310B  GLY*     3.1    25.6    +      -       -      -
    417B  LEU*     5.0     1.3    -      -       +      -
    418B  THR*     4.3    29.8    -      -       +      +
    419B  ASP      4.4     6.5    -      -       -      +
    420B  VAL*     4.7    10.8    -      -       +      -
    423B  ILE*     3.7    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 306 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317A  TRP*     3.2    47.4    -      +       -      -
    318A  ASP      3.6    22.9    -      -       -      -
    319A  GLY*     4.4     9.0    -      -       -      -
    244B  TYR*     3.4    43.5    -      +       +      -
    245B  ASP*     4.3     5.8    -      -       -      -
    302B  VAL      3.3    12.3    +      -       -      +
    303B  ASN*     5.3     0.2    -      -       -      -
    305B  ILE*     1.3    79.1    -      -       -      +
    307B  PHE*     1.3    86.1    +      +       +      +
    310B  GLY*     4.3     2.2    -      -       -      -
    420B  VAL*     3.6    27.8    -      -       +      -
----------------------------------------------------------
 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