Contacts of the helix formed by residues 242 - 271 (chain A) 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 LYS 242 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  LEU*     2.9    49.5    -      -       +      +
    239A  SER      4.5     0.7    -      -       -      +
    240A  GLY      3.2     1.0    -      -       -      -
    241A  GLU*     1.3    81.6    -      -       +      +
    243A  MET*     1.3    60.0    +      -       -      +
    244A  THR*     3.3     2.2    -      -       -      -
    245A  LEU*     3.2    31.0    -      -       +      -
    246A  SER*     2.9    26.2    +      -       -      -
    249B  MET*     5.7     2.7    -      -       +      -
    250B  SER*     5.4     2.2    -      -       -      -
    253B  ILE*     4.4    11.8    -      -       -      +
    302B  LEU*     4.3     4.4    +      -       -      +
    305B  HIS*     4.3     4.9    -      -       -      +
    306B  HIS*     4.1    10.1    -      -       -      +
    312B  HIS*     2.6    59.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  LEU*     5.3     0.4    -      -       -      -
    239A  SER      5.8     0.2    -      -       -      -
    240A  GLY*     2.9    24.8    +      -       -      +
    241A  GLU*     2.8    24.9    -      -       -      +
    242A  LYS*     1.3    74.0    -      -       -      +
    244A  THR*     1.3    89.7    +      -       +      +
    246A  SER*     3.0     9.7    +      -       -      -
    247A  ILE*     3.0    14.6    +      -       -      +
    250A  LEU*     5.4     1.0    -      -       -      +
    296A  ILE*     5.8     0.9    -      -       -      +
    299A  HIS*     4.2    24.9    -      -       -      +
    300A  HIS*     5.1    10.2    +      -       +      -
    306A  HIS*     2.7    37.7    -      -       +      +
    249E  GLN*     2.9    40.8    -      -       +      +
    250E  LYS*     3.8     7.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  LYS*     5.1     0.2    -      -       -      -
    243A  MET*     1.3    97.4    -      -       +      +
    245A  LEU*     1.3    73.5    +      -       +      +
    247A  ILE*     2.4    59.6    +      -       -      +
    300A  HIS*     5.7     0.7    -      -       -      -
    250B  SER*     6.4     0.9    -      -       -      -
    249E  GLN*     3.5    24.3    +      -       +      +
    250E  LYS*     5.1     0.9    -      -       -      -
    252E  THR*     5.5     1.7    +      -       -      +
    253E  LEU*     4.0    21.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  LYS*     3.1    48.0    +      -       +      +
    243A  MET      3.1     0.2    -      -       -      -
    244A  THR*     1.3    84.8    -      -       +      +
    246A  SER*     1.3    53.8    +      -       -      +
    248A  SER*     2.2    38.4    +      -       -      +
    249B  MET      3.6     3.4    -      -       -      +
    250B  SER*     3.0    55.6    -      -       -      +
    253B  ILE*     3.2    35.7    -      -       +      +
    254B  SER*     4.7     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  VAL*     4.1    25.1    -      -       -      +
    235A  LEU*     4.4    18.5    -      -       -      +
    242A  LYS*     2.9    12.8    +      -       -      +
    243A  MET      3.4    10.1    -      -       -      -
    244A  THR      3.0     0.4    -      -       -      -
    245A  LEU*     1.3    72.3    -      -       -      +
    247A  ILE*     1.3    66.4    +      -       -      +
    248A  SER      2.9     2.2    -      -       -      -
    249A  VAL*     2.7    23.0    +      -       -      +
    250A  LEU*     2.8    21.4    +      -       -      +
    296A  ILE*     5.8     0.2    -      -       -      -
    299A  HIS*     4.7    11.9    -      -       -      -
    253B  ILE*     5.4     2.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  MET      3.0     7.7    +      -       -      +
    244A  THR*     2.4    58.6    +      -       -      +
    246A  SER*     1.3    68.5    -      -       -      +
    248A  SER*     1.3    84.1    +      -       -      +
    250A  LEU*     3.2    16.5    +      -       +      +
    251A  LEU*     3.1    27.8    +      -       +      +
    300A  HIS*     5.3     5.4    -      -       +      +
    235E  LEU*     6.2     0.4    -      -       +      -
    253E  LEU*     3.1    30.1    -      -       +      -
    256E  SER*     3.2    33.9    -      -       -      +
    257E  VAL*     3.9    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  LEU*     2.2    28.0    +      -       -      +
    247A  ILE*     1.3    93.1    -      -       -      +
    249A  VAL*     1.3    67.1    +      -       -      +
    251A  LEU*     3.0    10.7    +      -       -      +
    252A  SER      2.8    13.2    +      -       -      -
    253B  ILE*     3.3    14.0    -      -       -      +
    254B  SER*     5.6     4.5    -      -       -      -
    257B  LEU*     2.8    29.2    -      -       -      +
    256E  SER*     5.7     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  LEU*     3.1    32.1    -      -       +      -
    232A  VAL*     4.6     7.2    -      -       +      -
    246A  SER*     2.7    27.4    +      -       -      +
    248A  SER*     1.3    81.2    +      -       -      +
    250A  LEU*     1.3    62.2    +      -       +      +
    252A  SER*     2.9     5.1    +      -       -      +
    253A  LEU*     2.6    57.9    +      -       +      +
    253B  ILE*     5.0    12.6    -      -       +      -
    257B  LEU*     3.2    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  VAL*     4.7    10.8    -      -       +      -
    243A  MET      5.4     0.4    -      -       -      +
    246A  SER*     2.8    30.4    +      -       -      +
    247A  ILE*     3.6    18.2    -      -       +      +
    249A  VAL*     1.3    85.7    -      -       +      +
    251A  LEU*     1.3    64.6    +      -       +      +
    253A  LEU*     4.2     6.5    -      -       +      +
    254A  THR*     3.2    23.7    +      -       -      -
    292A  THR*     3.1    36.8    -      -       +      -
    296A  ILE*     3.1    44.0    -      -       +      -
    300A  HIS*     6.0     2.0    -      -       +      +
    264E  PHE*     5.3     0.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  ILE*     3.1    21.7    +      -       +      +
    248A  SER*     3.0    10.2    +      -       -      +
    249A  VAL      2.9     0.4    -      -       -      -
    250A  LEU*     1.3    76.3    -      -       +      +
    252A  SER*     1.3    67.2    +      -       -      +
    253A  LEU      3.2     0.5    +      -       -      -
    255A  VAL*     3.2     9.1    +      -       -      +
    257B  LEU*     5.6     0.4    -      -       +      -
    235E  LEU*     4.8     9.4    -      -       +      -
    256E  SER*     2.7    46.9    -      -       -      +
    257E  VAL*     4.1    14.4    -      -       +      -
    259E  LEU*     5.7     0.2    -      -       +      -
    260E  ALA*     2.5    29.8    -      -       +      +
    264E  PHE*     3.2    28.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  LEU*     5.3     0.2    -      -       -      +
    248A  SER      2.8     9.5    +      -       -      -
    249A  VAL*     2.9    11.8    +      -       -      +
    251A  LEU*     1.3    73.7    -      -       -      +
    253A  LEU*     1.3    52.8    +      -       -      +
    255A  VAL*     4.0     4.0    -      -       -      -
    256A  PHE*     2.1    61.1    +      -       -      -
    257B  LEU*     2.5    53.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  PHE*     4.9    16.2    -      -       +      -
    228A  LEU*     3.6    27.6    -      -       +      -
    229A  THR*     4.4    16.4    -      -       -      +
    232A  VAL*     5.1     2.9    -      -       +      -
    249A  VAL*     2.6    48.7    +      -       +      +
    250A  LEU*     4.2     6.5    -      -       +      +
    252A  SER*     1.3    73.7    +      -       -      +
    254A  THR*     1.3    68.9    +      -       -      +
    255A  VAL      3.0     1.1    -      -       -      -
    256A  PHE*     2.9    14.4    +      -       +      +
    257A  LEU*     2.7    33.1    +      -       +      +
    288A  SER*     4.4    17.7    -      -       -      +
    292A  THR*     5.4     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  LEU      3.2    17.3    +      -       -      -
    253A  LEU*     1.3    84.7    -      -       -      +
    255A  VAL*     1.3    53.5    +      -       -      +
    257A  LEU*     3.0    11.0    +      -       +      +
    258A  LEU*     2.6    61.2    +      -       +      +
    288A  SER*     5.1     1.4    +      -       -      -
    289A  ILE*     3.2    31.4    -      -       +      +
    292A  THR*     5.8     2.6    -      -       -      +
    231E  LEU*     5.1    12.4    -      -       +      +
    264E  PHE*     3.7    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  LEU      3.2     8.5    +      -       -      +
    252A  SER*     3.5    13.9    -      -       -      +
    253A  LEU      3.0     0.6    -      -       -      -
    254A  THR*     1.3    80.9    -      -       -      +
    256A  PHE*     1.3    70.9    +      -       +      +
    258A  LEU*     2.8    14.7    +      -       +      +
    259A  VAL*     2.7    43.8    +      -       +      +
    261B  VAL*     5.1     4.9    -      -       +      -
    263E  ILE*     4.2    13.0    -      -       +      -
    264E  PHE*     2.7    47.3    -      -       +      -
    267E  LEU*     4.9     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  LEU*     5.6     7.6    -      -       +      -
    228A  LEU*     6.6     0.2    -      -       +      -
    252A  SER*     2.1    45.3    -      -       -      -
    253A  LEU*     2.9    16.9    +      -       +      +
    255A  VAL*     1.3    84.4    -      -       +      +
    257A  LEU*     1.3    58.3    +      -       +      +
    259A  VAL*     3.5     6.7    +      -       +      +
    260A  ILE*     3.0    30.0    +      -       -      +
    257B  LEU*     3.7    10.1    -      -       +      -
    260B  THR*     3.3    28.3    -      -       +      -
    261B  VAL*     3.0    46.9    -      -       +      -
    264B  LEU*     3.2    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  PRO*     5.7     4.0    -      -       +      +
    222A  CYS*     5.9     4.3    -      -       -      -
    225A  PHE*     4.4    28.5    -      -       +      -
    253A  LEU*     2.7    21.5    +      -       +      +
    254A  THR*     3.3    16.2    -      -       +      +
    256A  PHE*     1.3    74.4    -      -       +      +
    258A  LEU*     1.3    64.9    +      -       +      +
    260A  ILE*     3.0    28.9    -      -       +      +
    261A  VAL*     3.3    12.1    +      -       -      +
    285A  VAL*     2.9    45.9    -      -       +      +
    288A  SER*     4.6    13.5    -      -       -      +
    289A  ILE*     5.7     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  THR*     2.6    39.5    +      -       +      +
    255A  VAL*     2.8    21.7    +      -       +      +
    257A  LEU*     1.3    76.4    -      -       +      +
    259A  VAL*     1.3    59.2    +      -       +      +
    261A  VAL*     2.9    30.2    +      -       +      +
    262A  GLU*     3.5     8.2    +      -       -      +
    228E  PRO*     6.0     4.9    -      -       +      -
    231E  LEU*     5.6     7.2    -      -       +      -
    264E  PHE*     3.2    44.0    -      -       +      +
    267E  LEU*     5.0     9.4    -      -       +      -
    271E  LYS*     5.3     1.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 259 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255A  VAL*     2.7    31.9    +      -       +      +
    256A  PHE*     4.1     6.1    -      -       +      +
    258A  LEU*     1.3    71.3    -      -       +      +
    260A  ILE*     1.3    62.7    +      -       -      +
    261A  VAL      3.0     1.8    -      -       -      -
    262A  GLU*     2.9    30.4    +      -       -      +
    263A  LEU*     2.9    32.0    +      -       +      +
    268B  ASP*     4.8    13.7    -      -       -      +
    267E  LEU*     4.6    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 260 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  ASN*     4.5    18.8    -      -       -      +
    218A  VAL*     5.0    13.0    -      -       +      -
    221A  PRO*     5.0    15.9    -      -       +      -
    256A  PHE      3.0    16.3    +      -       -      +
    257A  LEU*     3.0    32.5    -      -       +      +
    258A  LEU      3.2     0.2    -      -       -      -
    259A  VAL*     1.3    77.5    -      -       -      +
    261A  VAL*     1.3    60.8    +      -       +      +
    263A  LEU*     3.3    14.9    +      -       +      +
    264A  ILE*     2.9    53.2    +      -       +      +
    285A  VAL*     6.2     1.1    -      -       +      -
    264B  LEU*     6.4     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 261 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257A  LEU      3.3    14.6    -      -       -      +
    258A  LEU*     2.9    16.7    +      -       +      +
    260A  ILE*     1.3    84.2    -      -       +      +
    262A  GLU*     1.3    52.7    +      -       -      +
    264A  ILE*     4.2    10.8    -      -       +      +
    265A  PRO*     2.3    41.2    -      -       +      +
    281A  THR*     5.9     2.9    -      -       -      +
    285A  VAL*     5.6     8.7    -      -       +      -
    224E  ASN*     4.1    27.4    -      -       -      +
    271E  LYS*     5.0    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 262 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258A  LEU      4.1     4.3    -      -       -      +
    259A  VAL*     2.9    41.2    +      -       -      +
    261A  VAL*     1.3    71.8    -      -       -      +
    263A  LEU*     1.3    61.4    -      -       +      +
    265A  PRO*     2.6    19.7    -      -       -      +
    266A  SER*     2.4    27.7    +      -       -      -
    267E  LEU*     4.0    24.4    -      -       -      +
    270E  GLN*     4.1     4.3    -      -       -      +
    271E  LYS*     2.7    42.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 263 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259A  VAL*     2.9    27.1    -      -       +      +
    260A  ILE*     3.5    17.7    -      -       +      +
    261A  VAL      3.2     0.2    -      -       -      -
    262A  GLU*     1.3    86.3    -      -       +      +
    264A  ILE*     1.3    60.4    +      -       +      +
    265A  PRO*     3.1     4.7    -      -       -      -
    266A  SER*     2.6    17.3    +      -       -      +
    267A  THR*     3.0    14.2    +      -       -      -
    268B  ASP*     3.0    28.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 264 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  PHE*     4.8    24.2    -      -       +      -
    218A  VAL*     5.1     9.9    -      -       +      -
    260A  ILE*     2.9    38.9    +      -       +      +
    261A  VAL*     4.2    11.4    -      -       +      +
    263A  LEU*     1.3    72.9    -      -       +      +
    265A  PRO*     1.3    64.0    -      -       +      +
    266A  SER      3.3     1.1    -      -       -      -
    267A  THR*     3.0    16.5    -      -       -      +
    268A  SER*     2.7    26.2    +      -       -      -
    273A  LEU*     5.7     1.7    -      -       -      +
    281A  THR*     4.8    20.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 265 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261A  VAL*     2.3    35.2    -      -       +      +
    262A  GLU*     2.6    28.0    -      -       -      +
    264A  ILE*     1.3    81.7    -      -       +      +
    266A  SER*     1.3    62.3    +      -       -      +
    267A  THR      3.0     1.3    -      -       -      -
    268A  SER*     2.7    15.4    +      -       -      +
    269A  SER*     2.3    37.0    +      -       -      -
    224E  ASN*     6.2     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 266 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  GLU      2.4    27.8    +      -       -      -
    263A  LEU*     2.6    17.8    +      -       -      +
    265A  PRO*     1.3    79.0    -      -       -      +
    267A  THR*     1.3    54.5    +      -       -      +
    269A  SER*     3.2     9.3    -      -       -      -
    270A  ALA*     2.4    37.3    +      -       -      +
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Residues in contact with THR 267 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  PHE*     5.9     1.1    -      -       +      -
    213A  TYR*     5.7     4.2    +      -       -      +
    214A  PHE*     4.8    25.4    -      -       +      -
    263A  LEU      3.0    18.8    +      -       -      -
    264A  ILE*     3.0    17.9    -      -       -      +
    266A  SER*     1.3    79.3    -      -       -      +
    268A  SER*     1.3    52.4    +      -       -      +
    270A  ALA*     2.7     8.7    +      -       +      -
    271A  VAL*     2.5    57.3    +      -       +      +
    273A  LEU*     5.8     3.6    -      -       +      -
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Residues in contact with SER 268 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  VAL*     4.3     0.5    -      -       -      +
    264A  ILE      2.7     9.6    +      -       -      -
    265A  PRO*     2.7    26.1    +      -       -      +
    267A  THR*     1.3    76.3    -      -       -      +
    269A  SER*     1.3    57.4    +      -       -      +
    271A  VAL*     2.6    25.8    -      -       -      +
    272A  PRO*     3.9     4.5    -      -       -      +
    273A  LEU*     4.4    23.8    -      -       -      +
    278A  MET*     6.1     3.0    -      -       -      +
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Residues in contact with SER 269 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  VAL*     2.8    30.3    -      -       -      +
    265A  PRO      2.3    29.0    +      -       -      -
    266A  SER*     3.2     9.9    -      -       -      -
    268A  SER*     1.3    68.6    +      -       -      +
    270A  ALA*     1.3    54.5    +      -       -      +
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Residues in contact with ALA 270 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  ASP*     3.9    10.0    -      -       -      +
     45A  GLU      5.5     0.2    +      -       -      -
     46A  VAL*     2.9    19.2    +      -       -      +
    266A  SER      2.4    29.6    +      -       -      +
    267A  THR*     3.1    14.6    -      -       +      +
    269A  SER*     1.3    68.3    -      -       -      +
    271A  VAL*     1.3    67.4    +      -       +      +
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Residues in contact with VAL 271 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  GLU*     3.9    12.3    -      -       +      +
     46A  VAL*     3.0     0.9    -      -       -      +
    135A  PHE*     4.1    22.4    -      -       +      -
    175A  GLU*     6.0     3.8    -      -       +      -
    209A  ARG*     4.5    17.0    -      -       -      +
    267A  THR*     2.5    42.0    +      -       +      +
    268A  SER*     2.6    24.5    -      -       -      +
    270A  ALA*     1.3    85.3    -      -       +      +
    272A  PRO*     1.3    64.3    -      -       +      +
    273A  LEU*     3.2     9.9    +      -       +      +
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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