Contacts of the helix formed by residues 247 - 275 (chain B) in PDB entry 2BG9


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with GLU 247 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245B  ALA*     2.7     7.3    +      -       -      -
    246B  GLY*     1.3    67.7    +      -       -      -
    248B  LYS*     1.3    51.2    +      -       -      +
    249B  MET*     2.4    48.4    +      -       +      +
    250B  SER*     4.3     0.5    +      -       -      -
    251B  LEU*     4.4     5.2    +      -       -      +
    318C  SER      5.4     0.2    -      -       -      +
    320C  HIS*     2.4    60.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  VAL*     2.7    56.8    +      -       -      +
    241B  LEU*     3.2    36.0    -      -       +      +
    242B  PRO*     3.6    22.7    -      -       +      -
    245B  ALA      2.3    29.7    +      -       -      +
    246B  GLY      2.5     5.2    +      -       -      +
    247B  GLU*     1.3    66.6    -      -       -      +
    249B  MET*     1.3    62.5    +      -       -      +
    250B  SER      2.7     1.2    +      -       -      -
    251B  LEU*     2.9    16.1    +      -       -      -
    252B  SER*     2.5    68.3    +      -       -      +
    305B  HIS*     3.9    14.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241A  GLU*     4.5    24.7    -      -       +      +
    242A  LYS*     5.7     2.9    -      -       +      -
    245A  LEU*     3.6     4.0    -      -       +      +
    246B  GLY      2.8    10.4    +      -       -      +
    247B  GLU*     2.4    44.4    -      -       +      +
    248B  LYS*     1.3    76.3    -      -       -      +
    250B  SER*     1.3    98.3    +      -       -      +
    252B  SER*     2.2    22.6    +      -       -      -
    253B  ILE*     4.9     0.2    -      -       -      +
    305B  HIS*     5.7     2.2    -      -       -      -
    312B  HIS*     3.2    45.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  LYS*     5.4     0.4    -      -       -      -
    244A  THR*     6.4     0.9    -      -       -      -
    245A  LEU*     3.0    43.3    -      -       -      +
    248B  LYS      2.7     1.0    +      -       -      -
    249B  MET*     1.3   106.3    -      -       -      +
    251B  LEU*     1.3    63.0    +      -       -      +
    252B  SER      2.7    15.6    +      -       -      -
    253B  ILE      2.7    13.7    +      -       -      -
    254B  SER      3.3     2.1    +      -       -      -
    258C  SER*     4.4    11.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241B  LEU*     3.2    42.8    -      -       +      -
    245B  ALA*     5.2     2.0    -      -       +      +
    247B  GLU      4.7     3.4    -      -       -      +
    248B  LYS*     3.5    18.8    -      -       -      +
    249B  MET*     4.3     0.4    -      -       -      -
    250B  SER*     1.3    82.7    +      -       -      +
    252B  SER*     1.3    66.3    +      -       -      +
    254B  SER*     2.7    29.4    +      -       -      -
    255B  ALA*     3.1     8.5    +      -       +      -
    257C  MET*     5.8     5.6    -      -       +      -
    258C  SER*     4.5    16.2    -      -       -      +
    261C  ILE*     3.1    46.4    -      -       +      -
    310C  LEU*     5.6     2.5    -      -       +      -
    314C  PHE*     5.7     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  VAL*     4.6     1.2    -      -       -      +
    248B  LYS*     2.5    56.0    +      -       -      +
    249B  MET*     2.2    33.3    +      -       -      -
    250B  SER      2.7     0.6    +      -       -      -
    251B  LEU*     1.3    75.1    -      -       -      +
    253B  ILE*     1.3    60.9    +      -       -      +
    255B  ALA*     2.9    27.8    +      -       -      +
    256B  LEU*     3.2     8.2    +      -       -      +
    302B  LEU*     4.9     2.2    -      -       -      +
    305B  HIS*     4.3    17.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 253 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  LEU*     5.4     1.8    -      -       +      -
    235A  LEU*     5.2     8.1    -      -       +      -
    242A  LYS*     4.4    11.2    -      -       -      +
    245A  LEU*     3.2    47.6    -      -       +      +
    246A  SER*     6.1     1.6    -      -       -      -
    248A  SER*     3.3    22.4    -      -       -      +
    249A  VAL*     5.0    14.1    -      -       +      +
    250B  SER      2.7     6.3    +      -       -      -
    252B  SER*     1.3    77.8    +      -       -      +
    254B  SER*     1.3    60.8    +      -       -      +
    256B  LEU*     3.2     4.1    +      -       +      +
    257B  LEU*     2.9    26.6    +      -       +      +
    302B  LEU*     3.2    49.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 254 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  LEU*     4.7     3.1    -      -       -      +
    248A  SER*     5.1     4.0    -      -       -      -
    250B  SER      3.3     4.4    +      -       -      -
    251B  LEU*     2.7    23.4    +      -       -      -
    253B  ILE*     1.3    81.6    -      -       -      +
    255B  ALA*     1.3    54.3    +      -       -      +
    257B  LEU*     3.5     6.8    +      -       -      +
    258B  ALA      3.0    14.4    +      -       -      -
    258C  SER*     5.9     2.2    -      -       -      -
    261C  ILE*     3.5    18.7    -      -       -      +
    262C  CYS*     5.7     3.8    -      -       -      -
    265C  LEU*     2.3    39.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 255 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234B  LEU*     6.0     4.4    -      -       +      +
    238B  VAL*     3.2    31.6    -      -       +      -
    251B  LEU*     3.1     9.8    +      -       +      +
    252B  SER*     2.9    17.2    +      -       -      +
    254B  SER*     1.3    81.7    +      -       -      +
    256B  LEU*     1.3    48.8    +      -       -      +
    258B  ALA*     3.2     4.0    -      -       -      +
    259B  LEU*     2.3    39.3    +      -       +      +
    261C  ILE*     6.0     0.4    -      -       +      -
    265C  LEU*     3.7    13.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 256 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  VAL*     4.8    15.9    -      -       +      -
    239B  PHE*     5.1     0.4    -      -       +      -
    252B  SER      3.2     7.8    +      -       -      +
    253B  ILE*     3.2     6.7    +      -       +      +
    255B  ALA*     1.3    78.0    -      -       -      +
    257B  LEU*     1.3    61.2    +      -       +      +
    259B  LEU*     3.7    20.0    -      -       +      -
    260B  THR*     2.5    43.3    +      -       -      +
    298B  SER*     2.8    58.8    -      -       -      +
    299B  VAL*     4.2     2.5    -      -       +      +
    301B  VAL*     4.8     1.3    -      -       +      -
    302B  LEU*     3.3    38.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 257 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  LEU*     5.1     2.0    -      -       +      -
    248A  SER*     2.8    52.5    -      -       -      +
    249A  VAL*     3.2    24.7    -      -       +      -
    251A  LEU*     5.6     0.2    -      -       +      -
    252A  SER*     2.5    31.9    -      -       -      +
    256A  PHE*     3.7     6.9    -      -       +      -
    253B  ILE*     2.9    19.6    +      -       +      +
    254B  SER*     3.6     8.7    -      -       -      +
    256B  LEU*     1.3    74.9    -      -       +      +
    258B  ALA*     1.4    56.7    +      -       -      +
    260B  THR*     4.7     2.7    -      -       -      -
    261B  VAL*     2.8    36.3    +      -       -      +
    265C  LEU*     5.0     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 258 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234B  LEU*     6.2     0.2    -      -       +      -
    254B  SER      3.0     1.2    +      -       -      -
    255B  ALA      3.2     1.6    -      -       -      +
    257B  LEU*     1.4    82.0    -      -       -      +
    259B  LEU*     1.3    60.2    +      -       -      +
    261B  VAL*     4.7     1.8    -      -       -      -
    262B  PHE*     2.5    49.6    +      -       +      -
    265C  LEU*     2.6    57.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 259 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231B  ILE*     3.2    35.0    -      -       +      +
    234B  LEU*     4.9    11.4    -      -       +      +
    235B  ALA*     4.3    19.3    -      -       +      +
    238B  VAL*     5.4     3.6    -      -       +      -
    239B  PHE*     5.1     0.2    -      -       +      -
    255B  ALA*     2.3    31.7    +      -       +      +
    256B  LEU*     2.9    25.7    +      -       +      +
    258B  ALA*     1.3    68.4    -      -       -      +
    260B  THR*     1.3    63.3    +      -       -      +
    262B  PHE*     3.6     8.5    -      -       +      +
    263B  LEU*     3.1    43.7    +      -       +      +
    294B  SER*     5.2     8.7    -      -       -      +
    295B  VAL*     6.4     0.7    -      -       -      -
    298B  SER*     4.9     8.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 260 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  LEU*     5.7    11.0    -      -       +      -
    256A  PHE*     3.3    25.8    -      -       +      -
    256B  LEU*     2.5    35.8    +      -       -      +
    257B  LEU*     4.7     1.1    -      -       -      -
    259B  LEU*     1.3    72.3    -      -       -      +
    261B  VAL*     1.3    67.1    +      -       -      +
    263B  LEU*     3.3     5.8    +      -       +      +
    264B  LEU*     2.9    40.8    +      -       +      +
    295B  VAL*     6.0     8.2    -      -       +      +
    298B  SER*     5.2     4.0    +      -       -      -
    299B  VAL*     5.6     5.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 261 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  SER*     5.8     0.2    -      -       -      -
    255A  VAL*     5.1     5.4    -      -       +      -
    256A  PHE*     3.0    32.8    -      -       +      -
    259A  VAL*     6.6     0.2    -      -       +      -
    257B  LEU      2.8    19.3    +      -       -      +
    258B  ALA*     3.7     1.1    -      -       -      +
    260B  THR*     1.3    70.5    -      -       -      +
    262B  PHE*     1.3    84.4    +      -       +      +
    264B  LEU*     2.9     6.8    +      -       +      +
    265B  LEU*     2.8    51.6    +      -       +      +
    269C  VAL*     4.9     6.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 262 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231B  ILE*     4.7    20.0    -      -       +      -
    234B  LEU*     4.9    11.2    -      -       +      -
    258B  ALA*     2.5    43.1    -      -       +      +
    259B  LEU*     3.6     7.9    -      -       -      +
    261B  VAL*     1.3    92.1    -      -       +      +
    263B  LEU*     1.3    58.6    +      -       -      +
    265B  LEU*     3.3    13.5    +      -       -      +
    266B  LEU*     3.0    31.6    +      -       +      +
    265C  LEU*     3.2    24.7    -      -       +      -
    268C  ALA*     3.4    22.0    -      -       +      -
    269C  VAL*     3.4    19.5    -      -       +      -
    272C  LEU*     3.6    26.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 263 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228B  CYS*     6.4     2.2    -      -       -      -
    231B  ILE*     4.0    14.8    -      -       +      -
    259B  LEU*     3.1    42.8    +      -       +      +
    260B  THR*     3.9     5.6    -      -       +      +
    262B  PHE*     1.3    77.9    -      -       +      +
    264B  LEU*     1.3    63.7    +      -       +      +
    266B  LEU*     3.3    24.6    -      -       +      +
    267B  ALA*     2.9    23.2    +      -       -      +
    291B  VAL*     3.3    38.8    -      -       +      +
    294B  SER*     5.0    10.5    -      -       -      -
    295B  VAL*     5.4    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 264 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  PRO*     6.1     4.0    -      -       +      -
    224A  LEU*     5.7     8.1    -      -       +      -
    256A  PHE*     3.2    49.6    -      -       +      -
    260A  ILE*     6.4     2.0    -      -       +      -
    260B  THR*     2.9    30.7    +      -       +      +
    261B  VAL*     3.5     4.9    -      -       +      +
    263B  LEU*     1.3    77.5    -      -       +      +
    265B  LEU*     1.3    63.2    +      -       -      +
    267B  ALA*     2.8    31.5    +      -       +      +
    268B  ASP*     2.9    12.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 265 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261B  VAL*     2.8    33.3    +      -       +      +
    262B  PHE*     3.5    18.6    -      -       +      +
    264B  LEU*     1.3    76.7    -      -       -      +
    266B  LEU*     1.3    55.7    +      -       +      +
    268B  ASP*     2.7    45.3    +      -       +      +
    269B  LYS*     3.0     7.8    +      -       -      +
    269C  VAL*     4.7     8.1    -      -       +      -
    272C  LEU*     3.5    33.7    -      -       +      -
    273C  LEU*     4.6    29.4    -      -       +      -
    276C  GLN*     6.5     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 266 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223B  TYR*     5.9     2.5    -      -       +      -
    224B  THR*     6.1     0.7    -      -       +      -
    227B  PRO*     4.1    32.8    -      -       +      -
    231B  ILE*     5.3     4.9    -      -       +      -
    262B  PHE*     3.0    20.0    +      -       +      +
    263B  LEU*     3.3    34.1    -      -       +      +
    264B  LEU      3.1     0.2    -      -       -      -
    265B  LEU*     1.3    77.7    -      -       +      +
    267B  ALA*     1.3    55.7    -      -       -      +
    269B  LYS*     3.1    34.8    -      -       +      +
    270B  VAL*     2.8    35.5    +      -       +      +
    276C  GLN*     4.5    14.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 267 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  ASN*     5.8     4.0    -      -       -      +
    263B  LEU      2.9    11.6    +      -       -      +
    264B  LEU*     2.8    29.1    +      -       +      +
    266B  LEU*     1.3    76.6    -      -       -      +
    268B  ASP*     1.3    49.8    +      -       -      +
    270B  VAL*     4.1     5.4    -      -       -      +
    271B  PRO*     2.5    34.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 268 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259A  VAL*     4.8    11.5    -      -       -      +
    263A  LEU*     3.0    37.9    -      -       -      +
    264B  LEU*     2.9    10.4    +      -       -      +
    265B  LEU*     2.7    34.8    +      -       +      +
    267B  ALA*     1.3    75.9    -      -       -      +
    269B  LYS*     1.3    58.3    +      -       -      +
    271B  PRO*     2.9    18.8    -      -       -      +
    272B  GLU*     3.9    10.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 269 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223B  TYR*     5.2    10.7    +      -       -      +
    224B  THR*     3.8    25.9    +      -       -      +
    265B  LEU      3.0     5.2    +      -       -      +
    266B  LEU*     3.1    40.8    -      -       +      +
    268B  ASP*     1.3    75.7    -      -       -      +
    270B  VAL*     1.3    94.4    +      -       +      +
    272B  GLU*     3.5     3.6    +      -       -      +
    273B  THR*     2.7    51.8    +      -       +      +
    276C  GLN*     4.8    13.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 270 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266B  LEU*     2.8    27.6    +      -       +      +
    267B  ALA*     4.1     4.5    -      -       -      +
    269B  LYS*     1.3    98.1    -      -       -      +
    271B  PRO*     1.3    66.6    -      -       +      +
    273B  THR*     2.8    18.1    +      -       -      +
    274B  SER*     3.1    15.0    +      -       -      -
    284B  LEU*     3.7    41.7    -      -       +      -
    287B  ILE*     6.0     3.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 271 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  TYR*     6.4     2.2    -      -       +      -
    267B  ALA      2.5    31.6    -      -       -      +
    268B  ASP*     2.9    16.8    -      -       -      +
    270B  VAL*     1.3    87.9    -      -       +      +
    272B  GLU*     1.3    57.0    +      -       +      +
    274B  SER*     3.3     7.7    +      -       -      +
    275B  LEU*     2.6    44.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 272 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268B  ASP      3.9    13.7    -      -       -      +
    269B  LYS*     4.2     4.1    -      -       -      +
    271B  PRO*     1.3    83.8    -      -       +      +
    273B  THR*     1.3    60.1    +      -       +      +
    275B  LEU*     2.9    37.7    -      -       +      +
    276B  SER*     4.7     1.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 273 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220B  TYR*     6.3     3.8    -      -       +      -
    269B  LYS*     2.7    40.4    +      -       +      +
    270B  VAL*     2.8    18.0    +      -       -      +
    272B  GLU*     1.3    79.8    -      -       +      +
    274B  SER*     1.3    62.9    +      -       -      +
    275B  LEU      3.0     1.9    +      -       -      -
    276B  SER*     3.6     8.5    +      -       -      -
    277B  VAL*     3.8    15.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 274 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270B  VAL*     3.1    16.2    +      -       -      -
    271B  PRO*     3.3    13.2    +      -       -      +
    273B  THR*     1.3    72.7    +      -       -      +
    275B  LEU*     1.3    54.9    +      -       -      +
    276B  SER      2.5    20.5    +      -       -      -
    277B  VAL*     2.8     3.5    +      -       -      +
    278B  PRO*     2.6    51.2    -      -       -      +
    284B  LEU*     5.5     7.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 275 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  LYS*     2.2    44.7    +      -       -      +
    271B  PRO*     2.6    35.6    +      -       +      +
    272B  GLU*     2.9    41.7    -      -       +      +
    273B  THR      3.0     0.2    -      -       -      -
    274B  SER*     1.3    76.0    +      -       -      +
    276B  SER*     1.3    53.3    +      -       -      +
----------------------------------------------------------
 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