Contacts of the helix formed by residues 242 - 271 (chain D) 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 D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235D  LEU*     3.2    37.1    -      -       +      +
    239D  SER*     2.7    41.4    +      -       -      +
    240D  GLY*     2.5     7.8    +      -       -      -
    241D  GLU*     1.4    77.0    -      -       -      +
    243D  MET*     1.3    54.5    +      -       -      +
    244D  THR*     3.2     4.7    -      -       -      -
    245D  LEU*     2.8    54.4    -      -       +      +
    246D  SER*     2.8    15.6    +      -       -      -
    251E  CYS*     4.9     8.3    -      -       -      -
    252E  THR*     5.8     0.4    -      -       +      -
    304E  LEU*     3.0    33.1    -      -       +      +
    307E  SER      3.0    14.5    +      -       -      +
    308E  LEU*     3.5     6.9    -      -       -      +
    314E  HIS*     4.6     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 243 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240D  GLY*     2.4    27.3    +      -       -      +
    241D  GLU*     2.8    40.8    -      -       -      +
    242D  LYS*     1.3    74.5    -      -       -      +
    244D  THR*     1.3    76.7    +      -       +      +
    246D  SER*     2.7    28.5    -      -       -      -
    247D  ILE      2.9     6.8    +      -       -      -
    299D  HIS*     4.4    18.8    -      -       +      +
    300D  HIS*     3.6    29.3    -      -       +      +
    305D  THR      5.1     4.7    -      -       -      +
    306D  HIS*     4.0    35.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 244 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256C  LYS*     5.7     2.0    -      -       -      -
    259C  THR*     2.2    46.0    +      -       -      -
    241D  GLU      5.1     0.9    -      -       -      +
    242D  LYS*     4.3     7.2    -      -       -      -
    243D  MET*     1.3    89.5    -      -       +      +
    245D  LEU*     1.3    74.9    +      -       +      +
    246D  SER      3.0     1.3    -      -       -      -
    247D  ILE*     2.7    26.1    +      -       -      +
    248D  SER*     2.8    13.0    +      -       -      -
    300D  HIS*     5.0     1.6    -      -       -      -
    252E  THR*     5.8     6.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 245 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235D  LEU*     5.1     2.7    -      -       +      -
    242D  LYS*     2.8    54.3    -      -       +      +
    244D  THR*     1.3    84.9    -      -       +      +
    246D  SER*     1.3    60.9    +      -       -      +
    248D  SER*     2.5    28.7    +      -       -      -
    249D  VAL*     3.0    15.4    -      -       +      +
    251E  CYS*     4.5     1.6    -      -       -      +
    252E  THR*     4.0    23.8    -      -       -      +
    255E  ILE*     2.9    56.8    -      -       +      -
    304E  LEU*     4.5     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 246 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232D  VAL*     4.6    10.9    +      -       -      +
    235D  LEU*     5.4    10.3    -      -       -      -
    242D  LYS      2.8    10.4    +      -       -      -
    243D  MET*     2.7    21.5    -      -       -      -
    245D  LEU*     1.3    78.2    -      -       -      +
    247D  ILE*     1.3    60.6    +      -       -      +
    249D  VAL*     3.0    18.2    +      -       -      +
    250D  LEU*     3.0    34.5    +      -       -      +
    296D  ILE*     3.5    13.4    -      -       -      +
    299D  HIS*     3.9    13.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 247 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256C  LYS*     5.2     4.9    -      -       -      -
    259C  THR*     2.8    38.4    -      -       +      +
    262C  CYS*     3.1    24.7    -      -       -      -
    263C  VAL*     3.9    18.4    -      -       +      -
    243D  MET      2.9     6.2    +      -       -      +
    244D  THR*     2.7    15.5    +      -       -      +
    246D  SER*     1.3    70.9    -      -       -      +
    248D  SER*     1.3    64.5    +      -       -      +
    250D  LEU*     2.8    17.9    +      -       +      +
    251D  LEU*     3.0    14.2    +      -       +      +
    296D  ILE*     4.4    18.2    -      -       +      -
    300D  HIS*     3.9    24.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 248 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259C  THR*     5.4     0.4    -      -       -      -
    262C  CYS*     4.6    10.5    -      -       -      -
    244D  THR      2.8    13.1    +      -       -      -
    245D  LEU*     2.5    21.7    +      -       -      -
    247D  ILE*     1.3    80.4    -      -       -      +
    249D  VAL*     1.3    64.8    +      -       -      +
    251D  LEU*     3.4     6.5    +      -       -      +
    252D  SER      2.9    15.8    +      -       -      -
    255E  ILE*     3.8     9.4    -      -       -      +
    256E  SER*     5.5     1.8    +      -       -      -
    259E  LEU*     2.8    27.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 249 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228D  LEU*     3.2    41.3    -      -       +      +
    232D  VAL*     6.2     3.1    -      -       +      -
    235D  LEU*     6.1     1.8    -      -       +      -
    245D  LEU*     3.0    33.9    -      -       +      +
    246D  SER*     3.0     9.0    +      -       -      +
    248D  SER*     1.3    80.3    -      -       -      +
    250D  LEU*     1.3    58.9    +      -       +      +
    252D  SER*     3.1     5.5    +      -       -      +
    253D  LEU*     2.5    37.1    +      -       -      +
    255E  ILE*     3.8     8.3    -      -       +      -
    258E  LEU*     4.3     2.2    -      -       +      -
    259E  LEU*     3.2    16.6    -      -       +      -
    304E  LEU*     5.9     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 250 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232D  VAL*     4.3    13.7    -      -       +      -
    246D  SER*     3.0    38.5    +      -       -      +
    247D  ILE*     2.8    11.2    +      -       +      +
    249D  VAL*     1.3    76.9    -      -       +      +
    251D  LEU*     1.3    54.8    +      -       +      +
    252D  SER      3.0     0.9    -      -       -      -
    253D  LEU*     2.6    54.2    -      -       +      +
    254D  THR*     2.6    23.1    +      -       -      +
    292D  THR*     2.5    44.4    -      -       +      +
    296D  ILE*     3.0    30.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 251 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242C  LEU*     5.5     3.1    -      -       +      -
    262C  CYS*     2.8    55.9    -      -       +      +
    263C  VAL*     3.0    34.1    -      -       +      +
    266C  ALA*     3.1    23.8    -      -       +      -
    270C  PHE*     3.5     6.2    -      -       +      -
    247D  ILE*     3.0    18.6    +      -       +      +
    248D  SER*     3.6     7.2    -      -       -      +
    250D  LEU*     1.3    74.4    -      -       +      +
    252D  SER*     1.4    62.8    +      -       -      +
    254D  THR*     2.8    22.9    -      -       +      +
    255D  VAL*     3.0    13.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 252 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228D  LEU*     4.8     3.1    -      -       -      +
    248D  SER      2.9     5.9    +      -       -      -
    249D  VAL*     3.1    11.8    +      -       -      +
    250D  LEU      3.0     0.2    -      -       -      -
    251D  LEU*     1.4    71.6    -      -       -      +
    253D  LEU*     1.3    66.0    +      -       -      -
    255D  VAL*     2.8    13.9    -      -       -      +
    256D  PHE*     2.8    48.5    +      -       -      -
    259E  LEU*     2.8    51.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 253 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225D  PHE*     5.6     9.9    -      -       +      +
    228D  LEU*     5.9     7.9    -      -       +      -
    229D  THR*     4.6    20.6    -      -       +      +
    232D  VAL*     4.9     4.9    -      -       +      -
    249D  VAL*     2.5    13.5    +      -       +      +
    250D  LEU*     2.6    57.2    -      -       +      +
    252D  SER*     1.3    77.7    +      -       -      +
    254D  THR*     1.3    95.0    +      -       -      +
    256D  PHE*     2.9     9.3    +      -       -      +
    257D  LEU*     2.8    37.1    +      -       +      +
    288D  SER*     4.8     6.5    -      -       -      +
    289D  ILE*     5.7     5.4    -      -       +      -
    292D  THR*     5.2     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 254 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270C  PHE*     3.3    23.0    -      -       +      -
    250D  LEU      2.6    25.5    +      -       -      +
    251D  LEU*     2.8    16.6    -      -       +      +
    253D  LEU*     1.3    94.9    -      -       -      +
    255D  VAL*     1.3    62.5    +      -       -      +
    257D  LEU*     3.3     6.0    +      -       -      +
    258D  LEU*     2.6    66.5    +      -       -      +
    289D  ILE*     4.7     8.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 255 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269C  VAL*     4.7     9.4    -      -       +      -
    270C  PHE*     3.3    32.5    -      -       +      -
    251D  LEU      3.0    12.7    +      -       -      +
    252D  SER*     2.8    22.9    -      -       -      +
    254D  THR*     1.3    81.5    -      -       -      +
    256D  PHE*     1.3    63.0    +      -       +      +
    258D  LEU*     4.2     6.3    -      -       +      -
    259D  VAL*     2.3    55.4    +      -       +      +
    263E  ILE*     5.2    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 256 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252D  SER*     2.8    46.1    +      -       -      -
    253D  LEU*     3.1    11.2    -      -       -      +
    255D  VAL*     1.3    83.2    -      -       +      +
    257D  LEU*     1.3    58.2    +      -       -      +
    259D  VAL*     3.2    10.2    -      -       -      +
    260D  ILE*     2.7    30.0    +      -       +      +
    259E  LEU*     3.6     9.6    -      -       +      -
    262E  THR*     3.2    38.8    -      -       +      -
    263E  ILE*     3.1    45.8    -      -       +      -
    266E  PHE*     5.2    17.3    -      +       +      -
----------------------------------------------------------
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Residues in contact with LEU 257 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225D  PHE*     4.5    15.9    -      -       +      -
    253D  LEU*     2.8    32.1    +      -       +      +
    254D  THR*     3.5     8.3    -      -       -      +
    256D  PHE*     1.3    70.6    -      -       +      +
    258D  LEU*     1.3    78.5    -      -       +      +
    259D  VAL      2.8     1.3    -      -       -      -
    260D  ILE*     2.6    39.3    +      -       +      +
    261D  VAL*     2.7    24.7    +      -       +      +
    285D  VAL*     4.2    36.6    -      -       +      +
    288D  SER*     5.4     7.4    -      -       -      +
    289D  ILE*     4.8    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 258 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  PRO*     5.8     8.3    -      -       +      -
    239C  ILE*     5.6     7.2    -      -       +      -
    270C  PHE*     4.6    24.7    -      -       +      +
    277C  ARG*     6.0     4.9    -      -       -      +
    254D  THR*     2.6    57.9    +      -       -      +
    255D  VAL*     3.7     6.7    -      -       +      +
    257D  LEU*     1.3    85.3    -      -       +      +
    259D  VAL*     1.3    62.3    +      -       +      +
    261D  VAL*     3.3     9.0    +      -       -      +
    262D  GLU*     3.2    23.1    +      -       -      +
    289D  ILE*     4.6     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 259 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277C  ARG*     5.3     0.2    -      -       -      +
    255D  VAL*     2.3    49.7    +      -       +      +
    256D  PHE*     3.2     9.9    -      -       -      +
    258D  LEU*     1.3    78.4    -      -       +      +
    260D  ILE*     1.3    62.4    +      -       -      +
    262D  GLU*     2.5    55.8    +      -       -      +
    263D  LEU*     3.4    12.1    +      -       +      +
    266E  PHE*     4.5    17.0    -      -       +      -
    270E  GLN*     4.6    10.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 260 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217D  ASN      6.1     0.2    -      -       -      +
    218D  VAL*     5.9     7.9    -      -       +      +
    221D  PRO*     3.8    35.2    -      -       +      -
    225D  PHE*     4.5    12.6    -      -       +      -
    256D  PHE*     2.7    24.8    +      -       +      +
    257D  LEU*     2.6    35.4    +      -       +      +
    259D  VAL*     1.3    71.6    -      -       -      +
    261D  VAL*     1.3    59.0    +      -       +      +
    263D  LEU*     3.1    27.3    +      -       +      +
    264D  ILE*     2.9    33.6    +      -       +      +
    281D  THR*     6.5     0.7    -      -       +      -
    266E  PHE*     5.6     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 261 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231C  ASN*     4.4    18.2    -      -       +      +
    257D  LEU*     2.7    21.8    +      -       +      +
    258D  LEU*     3.7    11.0    -      -       -      +
    259D  VAL      3.2     0.2    -      -       -      -
    260D  ILE*     1.3    74.2    -      -       +      +
    262D  GLU*     1.3    51.0    +      -       +      +
    264D  ILE*     2.9    19.5    -      -       +      -
    265D  PRO*     2.1    54.3    -      -       +      +
    278D  MET*     5.0    13.5    -      -       +      -
    281D  THR*     6.3     0.7    -      -       -      -
    282D  MET*     5.5     7.0    -      -       +      -
    285D  VAL*     5.6     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 262 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277C  ARG*     2.5    39.8    +      -       -      +
    258D  LEU*     3.2    11.9    +      -       -      +
    259D  VAL*     2.5    54.4    +      -       -      +
    260D  ILE      3.1     0.6    -      -       -      -
    261D  VAL*     1.3    77.9    -      -       -      +
    263D  LEU*     1.3    64.0    +      -       +      +
    265D  PRO*     3.5     6.3    -      -       -      +
    266D  SER*     3.1    21.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 263 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214D  PHE*     5.6     3.4    -      -       +      -
    217D  ASN*     5.8     7.0    -      -       -      +
    259D  VAL      3.6    13.7    -      -       -      +
    260D  ILE*     3.3    20.2    -      -       +      +
    262D  GLU*     1.3    78.2    -      -       +      +
    264D  ILE*     1.3    52.8    +      -       +      +
    266D  SER*     3.1     7.3    +      -       -      -
    267D  THR*     2.5    42.0    +      -       +      +
    266E  PHE*     2.9    48.0    -      -       +      -
    270E  GLN*     4.3    13.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 264 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214D  PHE*     4.6    15.7    -      -       +      -
    218D  VAL*     6.2     4.0    -      -       +      -
    260D  ILE*     2.9    22.0    -      -       +      +
    261D  VAL*     2.9    40.8    -      -       +      +
    263D  LEU*     1.3    74.5    -      -       +      +
    265D  PRO*     1.3    68.2    -      -       +      +
    267D  THR*     2.7    11.4    -      -       -      +
    268D  SER*     2.5    46.2    +      -       -      -
    273D  LEU*     6.3     0.9    -      -       +      -
    278D  MET*     3.6    38.1    -      -       +      -
    281D  THR*     5.5     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 265 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231C  ASN*     5.9     1.8    -      -       -      +
    261D  VAL*     2.1    42.4    -      -       +      +
    262D  GLU*     3.7     8.1    -      -       -      +
    263D  LEU      3.5     0.2    -      -       -      -
    264D  ILE*     1.3    87.6    -      -       +      +
    266D  SER*     1.3    62.0    +      -       -      +
    268D  SER*     4.5     4.7    -      -       -      -
    269D  SER*     3.0    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 266 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262D  GLU      3.1    13.0    +      -       -      -
    263D  LEU*     3.1    11.0    +      -       -      -
    265D  PRO*     1.3    76.5    -      -       -      +
    267D  THR*     1.3    52.5    +      -       -      +
    269D  SER*     3.5     2.0    -      -       -      -
    270D  ALA*     2.7    41.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 267 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214D  PHE*     3.1    40.2    -      -       +      -
    263D  LEU*     2.5    32.8    +      -       +      +
    264D  ILE*     2.7    25.4    -      -       -      +
    266D  SER*     1.3    73.1    +      -       -      +
    268D  SER*     1.3    51.7    +      -       -      +
    270D  ALA*     2.8     8.4    +      -       -      -
    271D  VAL*     2.4    51.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 268 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  VAL*     4.5     0.2    -      -       -      +
    214D  PHE*     5.7     1.8    -      -       -      -
    264D  ILE*     2.5    34.7    +      -       -      -
    265D  PRO*     4.3     3.6    -      -       -      -
    267D  THR*     1.3    73.5    +      -       -      +
    269D  SER*     1.3    60.1    +      -       -      +
    271D  VAL*     2.4    32.3    -      -       -      +
    272D  PRO*     3.4     6.1    -      -       -      +
    273D  LEU*     2.8    34.9    -      -       -      +
    278D  MET*     6.2     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 269 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  VAL*     3.1    17.8    -      -       -      +
    265D  PRO*     3.0    22.5    +      -       -      +
    266D  SER      3.5     1.1    -      -       -      -
    268D  SER*     1.3    78.7    +      -       -      +
    270D  ALA*     1.3    56.3    +      -       -      +
    271D  VAL      3.4     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 270 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  VAL*     2.7    27.3    -      -       -      +
    266D  SER*     2.7    25.8    +      -       -      +
    267D  THR*     2.8     9.4    +      -       -      +
    269D  SER*     1.3    75.0    -      -       -      +
    271D  VAL*     1.3    56.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 271 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  GLU*     4.1    17.5    -      -       +      +
     46D  VAL*     4.3     3.8    -      -       +      -
    135D  PHE*     4.8    13.4    -      -       +      -
    209D  ARG*     6.3     0.2    -      -       -      +
    214D  PHE*     6.0     4.9    -      -       +      -
    267D  THR*     2.4    31.9    +      -       -      +
    268D  SER*     2.4    24.2    -      -       -      +
    269D  SER      3.4     0.4    -      -       -      -
    270D  ALA*     1.3    78.7    -      -       +      +
    272D  PRO*     1.3    71.2    -      -       +      +
    273D  LEU*     4.0     3.6    +      -       +      +
----------------------------------------------------------
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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