Contacts of the helix formed by residues 125 - 150 (chain J) in PDB entry 2BKC


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 ASP 125 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136C  LYS*     5.0     2.1    +      -       -      -
      9J  THR*     3.8    19.4    -      -       -      +
     63J  ARG*     3.1    26.1    +      -       -      -
     67J  ILE*     4.2    10.6    -      -       -      +
    120J  THR*     3.0    20.0    +      -       -      +
    123J  GLU*     3.3     4.9    +      -       +      -
    124J  GLY*     1.3    75.3    -      -       -      +
    126J  ASP*     1.3    62.8    +      -       -      +
    127J  VAL      3.6     1.0    +      -       -      -
    128J  THR*     2.8    29.1    +      -       -      -
    129J  ASN*     3.2    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 126 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114C  LYS*     2.9    35.7    +      -       -      +
    117C  ILE*     3.3    20.9    -      -       +      +
    133C  ILE*     3.7    28.6    -      -       +      +
    136C  LYS*     5.9     2.8    -      -       +      +
    124J  GLY*     3.2     9.9    +      -       -      +
    125J  ASP*     1.3    73.0    +      -       -      +
    127J  VAL*     1.3    66.2    +      -       +      +
    129J  ASN*     3.4     7.6    +      -       -      +
    130J  ASP*     3.0    23.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 127 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117C  ILE*     6.0     0.2    -      -       +      -
    133C  ILE*     3.6    28.7    -      -       +      +
    136C  LYS*     3.9    30.0    -      -       +      +
    137C  ALA*     3.4    37.0    -      -       +      +
    140C  ASP*     4.2     0.4    -      -       -      +
     63J  ARG*     3.5    33.0    -      -       -      +
    125J  ASP*     3.5     1.2    +      -       -      -
    126J  ASP*     1.3    76.9    -      -       +      +
    128J  THR*     1.3    57.1    +      -       -      +
    130J  ASP*     3.1     5.0    +      -       -      +
    131J  MET*     2.9    30.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 128 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9J  THR*     3.7    16.1    -      -       +      +
     13J  LEU*     3.7    34.1    -      -       +      +
     63J  ARG*     3.0    22.4    +      -       -      +
     67J  ILE*     4.8     0.9    -      -       -      +
    120J  THR*     3.6     5.8    -      -       -      +
    125J  ASP*     2.8    31.0    +      -       -      -
    127J  VAL*     1.3    75.9    -      -       -      +
    129J  ASN*     1.3    62.8    +      -       -      +
    131J  MET*     3.5    13.4    +      -       +      +
    132J  LEU*     3.1    30.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 129 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117J  ILE*     3.0    37.1    +      -       -      +
    120J  THR*     3.3    17.8    +      -       +      +
    121J  ASP*     3.5    17.2    +      -       -      +
    125J  ASP      3.2    19.8    +      -       -      +
    126J  ASP*     3.4     8.5    -      -       -      +
    127J  VAL      3.3     0.2    -      -       -      -
    128J  THR*     1.3    77.0    -      -       -      +
    130J  ASP*     1.3    62.5    +      -       -      +
    132J  LEU*     3.3     3.9    +      -       -      +
    133J  ILE*     3.1    46.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 130 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130C  ASP*     3.8    17.9    -      -       -      +
    133C  ILE*     3.9    20.4    -      -       +      +
    134C  ALA*     5.8     3.7    -      -       -      +
    130H  ASP*     3.9    13.2    -      -       -      +
    126J  ASP      3.0    13.2    +      -       -      +
    127J  VAL*     3.5     8.0    -      -       -      +
    129J  ASN*     1.3    77.3    +      -       -      +
    131J  MET*     1.3    68.5    +      -       -      +
    132J  LEU      3.2     0.2    +      -       -      -
    133J  ILE*     3.3     9.6    +      -       -      +
    134J  ALA*     3.2    23.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 131 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13J  LEU*     4.3     8.1    -      -       +      -
     59J  GLU*     3.7    37.5    -      -       -      +
     60J  VAL*     4.4    13.0    -      -       +      -
     63J  ARG*     3.8    27.1    -      -       +      -
    127J  VAL*     2.9    18.0    +      -       +      +
    128J  THR*     3.7    13.7    -      -       +      +
    129J  ASN      3.4     0.2    -      -       -      -
    130J  ASP*     1.3    80.6    +      -       -      +
    132J  LEU*     1.3    85.0    +      -       +      +
    134J  ALA*     3.4     6.1    +      -       -      +
    135J  PHE*     3.4    41.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 132 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12J  PHE*     3.7    34.3    -      -       +      -
     13J  LEU*     4.4     4.7    -      -       +      -
     16J  GLN*     5.8     1.3    -      -       +      -
     60J  VAL*     5.2     4.0    -      -       +      -
    113J  TYR*     4.2    20.3    -      -       +      +
    116J  GLY      3.9    21.3    -      -       -      +
    117J  ILE*     3.6    17.4    -      -       +      +
    120J  THR*     4.3     6.7    -      -       +      -
    128J  THR*     3.1    25.6    +      -       +      +
    129J  ASN      3.3     0.9    +      -       -      +
    130J  ASP      3.2     0.2    -      -       -      -
    131J  MET*     1.3    96.7    -      -       +      +
    133J  ILE*     1.3    66.9    +      -       -      +
    135J  PHE*     3.5    14.6    +      -       +      +
    136J  LYS*     3.1    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 133 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126H  ASP*     3.6    47.1    -      -       +      +
    127H  VAL*     3.5    12.2    -      -       +      +
    130H  ASP*     4.0    20.9    -      -       +      -
    117J  ILE*     3.8    25.1    -      -       +      -
    129J  ASN*     3.1    40.6    +      -       -      +
    130J  ASP*     3.3     9.6    +      -       -      +
    132J  LEU*     1.3    77.8    -      -       -      +
    134J  ALA*     1.3    62.2    +      -       -      +
    136J  LYS*     3.2     1.3    +      -       -      -
    137J  ALA*     3.1    18.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 134 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130H  ASP*     5.5     8.1    -      -       -      +
    130J  ASP*     3.2    15.6    +      -       -      +
    131J  MET*     3.8     9.9    -      -       -      +
    132J  LEU      3.2     0.2    -      -       -      -
    133J  ILE*     1.3    78.5    -      -       -      +
    135J  PHE*     1.3    67.5    +      -       +      +
    137J  ALA*     3.2    22.2    +      -       -      +
    138J  SER*     3.3     6.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 135 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56J  GLN*     3.3    51.3    +      -       +      +
     59J  GLU*     3.7    35.2    -      -       +      -
     60J  VAL*     4.1    18.6    -      -       +      -
    113J  TYR*     3.6    25.8    -      +       +      -
    131J  MET*     3.4    34.4    +      -       +      -
    132J  LEU*     4.0     8.1    -      -       +      +
    133J  ILE      3.4     0.2    -      -       -      -
    134J  ALA*     1.3    81.8    -      -       +      +
    136J  LYS*     1.3    58.7    +      -       -      +
    138J  SER*     3.1     5.7    +      -       -      +
    139J  ILE*     2.8    35.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 136 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63H  ARG*     4.4     6.3    -      -       -      +
    125H  ASP*     5.6     0.4    +      -       -      -
    126H  ASP*     5.6     6.1    -      -       -      +
    127H  VAL*     4.0    16.1    -      -       +      +
    110J  ARG*     4.1    32.3    -      -       +      +
    113J  TYR*     4.4     6.2    -      -       +      -
    114J  LYS*     4.7    17.3    -      -       +      +
    117J  ILE*     4.4    17.9    -      -       +      -
    132J  LEU      3.1    14.0    +      -       -      +
    133J  ILE      3.2     8.5    +      -       -      +
    135J  PHE*     1.3    78.6    -      -       -      +
    137J  ALA*     1.3    58.1    +      -       -      +
    139J  ILE*     4.2     8.3    -      -       -      -
    140J  ASP*     2.8    63.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 137 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63H  ARG*     5.0     0.4    +      -       -      +
    127H  VAL*     3.5    28.8    -      -       +      +
    133J  ILE*     3.1    11.0    +      -       +      +
    134J  ALA*     3.3    13.9    -      -       -      +
    136J  LYS*     1.3    75.6    -      -       -      +
    138J  SER*     1.3    63.3    +      -       -      +
    140J  ASP*     3.8     3.2    -      -       -      +
    141J  LYS*     3.1    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 138 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52J  GLU*     2.2    34.8    +      -       -      -
     53J  PHE*     5.1     0.3    -      -       -      -
     56J  GLN*     4.8     3.7    +      -       -      -
    134J  ALA      3.3     7.0    +      -       -      -
    135J  PHE*     3.1    12.3    +      -       -      -
    137J  ALA*     1.3    80.5    -      -       -      +
    139J  ILE*     1.3    58.4    +      -       -      +
    141J  LYS*     3.1    11.5    +      -       -      +
    142J  HIS*     2.9    39.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 139 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53J  PHE*     3.8    25.8    -      -       +      -
     56J  GLN*     4.1     7.9    -      -       -      +
    106J  LEU*     3.6    30.9    -      -       +      +
    109J  LEU*     4.3    12.3    -      -       +      -
    110J  ARG*     3.8    19.3    -      -       +      +
    113J  TYR*     3.5    36.6    -      -       +      -
    135J  PHE      2.8    20.9    +      -       -      +
    136J  LYS*     3.8     4.9    -      -       -      +
    138J  SER*     1.3    76.7    -      -       -      +
    140J  ASP*     1.3    56.8    +      -       -      +
    142J  HIS*     3.1    11.7    +      -       -      +
    143J  ILE*     2.9    32.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 140 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63H  ARG*     2.8    33.7    +      -       -      +
     66H  ALA*     3.8    21.0    -      -       +      +
    127H  VAL*     4.2     1.0    -      -       -      +
    110J  ARG*     3.2    32.1    +      -       -      +
    136J  LYS*     2.8    46.0    +      -       -      +
    137J  ALA      3.8     2.7    -      -       -      +
    139J  ILE*     1.3    72.4    -      -       -      +
    141J  LYS*     1.3    64.9    +      -       -      +
    143J  ILE*     3.4     8.4    +      -       -      +
    144J  TRP*     3.2    17.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 141 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62H  GLU*     3.5    29.0    +      -       +      +
     66H  ALA*     4.7     5.6    -      -       +      +
    137J  ALA      3.1    11.3    +      -       -      +
    138J  SER*     3.3    12.1    -      -       -      +
    140J  ASP*     1.3    76.0    -      -       -      +
    142J  HIS*     1.3    67.3    +      -       +      +
    143J  ILE      3.2     0.2    +      -       -      -
    144J  TRP*     3.4    23.5    +      -       +      +
    145J  MET*     3.1    46.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 142 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45J  LYS*     4.8     7.3    +      -       -      -
     48J  ASP*     6.4     0.9    -      -       +      -
     49J  LEU*     4.3    17.0    -      -       +      +
     52J  GLU*     2.7    28.4    +      -       -      -
     53J  PHE*     4.1    16.9    -      +       -      -
    106J  LEU*     3.8    19.1    -      -       +      -
    138J  SER*     2.9    37.6    +      -       -      -
    139J  ILE*     3.1     8.7    +      -       -      +
    141J  LYS*     1.3    76.3    -      -       +      +
    143J  ILE*     1.3    57.5    +      -       -      +
    145J  MET*     4.0    21.6    -      -       +      +
    146J  PHE*     2.9    51.7    +      +       +      +
----------------------------------------------------------
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Residues in contact with ILE 143 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103J  VAL*     4.8     6.7    -      -       +      +
    106J  LEU*     4.1    18.8    -      -       +      +
    107J  GLU*     4.1    23.1    -      -       +      +
    110J  ARG*     3.6    38.8    -      -       -      +
    139J  ILE*     2.9    36.9    +      -       +      +
    140J  ASP*     3.8     7.0    -      -       -      +
    141J  LYS      3.1     0.6    -      -       -      -
    142J  HIS*     1.3    73.1    -      -       -      +
    144J  TRP*     1.3    68.4    +      -       -      +
    146J  PHE*     5.1     1.6    -      -       -      -
    147J  LYS*     3.0    33.0    +      -       +      +
    154J  PRO*     3.7    23.6    -      -       +      +
    155J  LEU*     5.3     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 144 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31F  HIS*     5.1    13.9    -      +       -      -
     32F  TRP*     4.7     8.0    +      -       -      -
     39F  PHE*     4.1    26.9    -      +       -      -
     62H  GLU*     3.9    44.6    -      -       +      -
     65H  LEU*     3.8    35.6    -      -       +      +
     66H  ALA*     4.0    18.4    -      -       +      -
    140J  ASP      3.2    10.9    +      -       -      +
    141J  LYS*     3.7    22.0    -      -       +      +
    143J  ILE*     1.3    79.4    -      -       -      +
    145J  MET*     1.3    85.2    +      -       +      +
    147J  LYS*     3.9     0.9    -      -       -      +
    148J  ALA*     2.9    30.3    +      -       +      +
    154J  PRO*     4.0    29.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 145 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39F  PHE*     3.8    30.0    -      -       +      -
     40F  PHE*     4.1    20.8    -      -       +      -
     45J  LYS*     4.4    13.0    -      -       -      +
    141J  LYS*     3.1    43.5    +      -       +      +
    142J  HIS*     3.8    26.5    -      -       +      +
    143J  ILE      3.2     0.2    -      -       -      -
    144J  TRP*     1.3   111.1    -      -       +      +
    146J  PHE*     1.3    57.9    +      -       +      +
    148J  ALA*     3.4     4.2    +      -       -      +
    149J  PHE*     3.1    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 146 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40F  PHE*     3.7    32.3    -      +       -      -
     42J  LEU*     4.8     3.1    -      -       +      -
     45J  LYS*     4.4     9.2    -      -       +      -
     46J  MET*     3.8    23.6    -      -       +      -
     49J  LEU*     4.0    23.6    -      -       +      -
     99J  MET*     3.9    31.1    -      -       +      +
    102J  LEU*     4.0    15.9    -      -       +      -
    103J  VAL*     3.5    22.9    -      -       +      -
    106J  LEU*     4.3     2.7    -      -       +      -
    142J  HIS*     2.9    42.6    +      -       +      +
    143J  ILE      4.4     0.2    -      -       -      +
    145J  MET*     1.3    74.3    -      -       +      +
    147J  LYS*     1.3    66.3    +      -       -      +
    149J  PHE*     3.2     9.1    +      +       +      +
    150J  LEU*     3.1    24.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 147 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103J  VAL*     3.7    24.6    -      -       +      +
    107J  GLU*     2.9    30.9    +      -       -      -
    143J  ILE*     3.0    24.7    +      -       +      +
    144J  TRP      4.1     1.8    -      -       -      +
    146J  PHE*     1.3    71.9    -      -       -      +
    148J  ALA*     1.3    65.7    +      -       -      +
    150J  LEU*     3.1    18.6    +      -       +      +
    151J  GLY      3.3     0.2    +      -       -      -
    152J  LYS*     3.0    45.1    +      -       +      +
    153J  ALA      3.7    21.3    -      -       -      +
    154J  PRO*     3.7    16.2    -      -       +      -
    155J  LEU*     5.3     0.4    -      -       -      +
    156J  GLU      3.8    21.1    +      -       -      +
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Residues in contact with ALA 148 (chain J). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34F  MET      4.1     7.9    -      -       -      +
     35F  ARG*     3.7     9.8    -      -       +      +
     36F  GLY      3.1    16.4    +      -       -      -
     39F  PHE*     3.4    33.2    -      -       +      -
    144J  TRP*     2.9    27.1    +      -       +      +
    145J  MET      3.5     1.3    -      -       -      +
    147J  LYS*     1.3    75.0    -      -       -      +
    149J  PHE*     1.3    63.6    +      -       -      +
    151J  GLY*     3.0    12.0    +      -       -      -
    152J  LYS      3.7    10.2    +      -       -      +
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Residues in contact with PHE 149 (chain J). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36F  GLY*     3.3    27.7    -      -       -      -
     37F  HIS*     3.3    47.9    +      +       -      -
     39F  PHE*     4.1     4.6    -      -       +      +
     40F  PHE*     4.0    27.8    -      +       +      -
     38J  ASN*     3.9    20.4    -      -       -      -
     41J  THR*     6.0     0.2    -      -       -      -
     42J  LEU*     3.5    30.7    -      -       +      -
     95J  MET*     4.4     4.9    -      -       +      -
     96J  ASP*     4.3    16.8    -      -       -      -
     99J  MET*     4.0    23.3    -      -       +      -
    145J  MET      3.1    13.4    +      -       -      +
    146J  PHE*     3.2    10.3    +      +       -      +
    148J  ALA*     1.3    75.9    -      -       -      +
    150J  LEU*     1.3    67.9    +      -       +      +
    151J  GLY      3.4     2.1    +      -       -      -
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Residues in contact with LEU 150 (chain J). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
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     37F  HIS*     5.4     1.8    -      -       -      -
     96J  ASP*     3.9    34.3    -      -       +      +
     99J  MET*     3.9    24.2    -      -       +      +
    100J  GLU*     4.2    22.2    -      -       +      +
    103J  VAL*     4.2    21.5    -      -       +      -
    146J  PHE      3.1    15.7    +      -       -      +
    147J  LYS*     3.1    19.1    +      -       +      +
    149J  PHE*     1.3    81.7    -      -       +      +
    151J  GLY*     1.3    61.2    +      -       -      -
    152J  LYS*     3.5    23.3    +      -       +      +
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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