Contacts of the helix formed by residues 94 - 123 (chain X) 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 THR 94 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35X  ARG      6.2     0.2    -      -       -      -
     92X  PRO      4.3     0.7    +      -       -      -
     93X  LYS*     1.3    79.1    -      -       -      +
     95X  MET*     1.3    74.9    +      -       +      +
     96X  ASP*     3.8    20.9    -      -       +      +
     97X  GLN*     3.1    27.1    +      -       -      -
     98X  LEU*     3.1    22.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 95 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37T  HIS*     5.7     2.5    -      -       +      -
     34X  MET*     3.6    48.9    -      -       +      -
     35X  ARG      3.3    38.0    +      -       -      +
     36X  GLY*     4.5     2.0    -      -       -      +
     38X  ASN*     4.1    20.6    -      -       +      +
     39X  PHE      4.0    16.6    -      -       -      +
     42X  LEU*     3.3    29.6    -      -       +      -
     94X  THR*     1.3    73.4    -      -       +      +
     96X  ASP*     1.3    68.5    +      -       -      +
     98X  LEU*     3.1    18.1    +      -       -      +
     99X  MET*     3.2    18.4    +      -       +      +
    149X  PHE*     4.7     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 96 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37T  HIS*     3.1    36.2    +      -       -      -
     94X  THR*     3.4    14.3    -      -       +      +
     95X  MET*     1.3    77.1    -      -       -      +
     97X  GLN*     1.3    58.2    +      -       +      +
     99X  MET      3.6     0.3    +      -       -      -
    100X  GLU*     3.2    38.0    +      -       -      +
    149X  PHE*     4.5     3.6    -      -       -      -
    150X  LEU*     3.6    28.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 97 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91X  LYS*     5.5     7.8    -      -       -      +
     92X  PRO      4.9     1.6    -      -       -      +
     93X  LYS*     3.9    30.5    -      -       +      +
     94X  THR*     3.1    41.6    +      -       -      +
     95X  MET      3.2     1.0    -      -       -      -
     96X  ASP*     1.3    76.1    -      -       +      +
     98X  LEU*     1.3    65.1    +      -       -      +
    100X  GLU*     3.9     5.7    -      -       -      +
    101X  ASP*     3.3    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 98 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29X  GLN*     5.7     4.9    -      -       +      +
     30X  ILE*     3.4    44.0    -      -       +      +
     33X  TYR*     4.6     3.6    -      -       +      +
     34X  MET*     3.8    37.5    -      -       +      +
     35X  ARG      5.1     0.2    -      -       -      +
     89X  TYR*     4.2    17.7    -      -       +      +
     93X  LYS*     4.2    29.2    -      -       +      +
     94X  THR      3.1    17.2    +      -       -      +
     95X  MET*     3.1    12.1    +      -       -      +
     97X  GLN*     1.3    77.6    -      -       -      +
     99X  MET*     1.3    62.4    +      -       +      +
    101X  ASP*     3.5     6.2    +      -       +      +
    102X  LEU      3.1    20.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 99 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30X  ILE*     3.5    31.2    -      -       +      -
     34X  MET*     4.6     2.5    -      -       +      -
     42X  LEU*     4.0    22.9    -      -       +      -
     46X  MET*     4.1    14.4    -      -       +      -
     95X  MET*     3.2    16.0    +      -       -      +
     98X  LEU*     1.3    78.8    -      -       +      +
    100X  GLU*     1.3    57.9    +      -       -      +
    102X  LEU*     3.4    11.4    -      -       +      +
    103X  VAL*     2.8    33.7    +      -       +      +
    146X  PHE*     3.9    34.3    -      -       +      -
    149X  PHE*     4.1    19.1    -      -       +      -
    150X  LEU*     3.8    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 100 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96X  ASP*     3.2    25.4    +      -       -      +
     97X  GLN*     4.4     5.4    -      -       -      +
     98X  LEU      3.4     0.2    -      -       -      -
     99X  MET*     1.3    74.5    -      -       -      +
    101X  ASP*     1.3    59.1    +      -       -      +
    103X  VAL*     3.8     9.0    -      -       +      +
    104X  GLY*     2.9    25.3    +      -       -      -
    147X  LYS*     5.7     4.2    +      -       +      +
    150X  LEU*     3.9    27.5    -      -       +      +
    152X  LYS*     4.6    15.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 101 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26X  LYS*     2.8    41.7    +      -       -      +
     29X  GLN*     4.7     7.8    +      -       -      -
     30X  ILE*     4.9     3.8    -      -       +      +
     97X  GLN      3.3    14.2    +      -       -      +
     98X  LEU*     3.6    11.0    -      -       +      +
     99X  MET      3.4     0.2    -      -       -      -
    100X  GLU*     1.3    77.1    -      -       -      +
    102X  LEU*     1.3    54.9    +      -       -      +
    104X  GLY*     3.4     2.1    +      -       -      -
    105X  THR*     2.8    36.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 102 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23X  PHE*     3.5    35.7    -      -       +      -
     26X  LYS*     5.4     1.6    -      -       +      -
     27X  ILE*     4.5     7.4    -      -       +      -
     30X  ILE*     4.1    17.4    -      -       +      +
     46X  MET*     3.9    26.7    -      -       +      -
     49X  LEU*     4.0    17.0    -      -       +      -
     98X  LEU      3.1    14.3    +      -       -      +
     99X  MET*     3.4    20.0    -      -       +      +
    101X  ASP*     1.3    72.7    -      -       -      +
    103X  VAL*     1.3    61.7    +      -       -      +
    105X  THR*     3.2     4.4    +      -       -      -
    106X  LEU*     3.0    35.6    +      -       +      +
    146X  PHE*     4.0    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 103 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99X  MET      2.8    19.1    +      -       -      +
    100X  GLU*     3.9    11.4    -      -       +      +
    102X  LEU*     1.3    73.8    -      -       +      +
    104X  GLY*     1.3    66.1    +      -       -      +
    106X  LEU*     3.7    11.6    -      -       +      +
    107X  GLU*     3.1    33.8    +      -       +      +
    143X  ILE*     4.7     6.7    -      -       +      +
    146X  PHE*     3.6    33.7    -      -       +      -
    147X  LYS*     3.8    34.5    -      -       +      +
    150X  LEU*     4.2    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 104 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100X  GLU      2.9    17.5    +      -       -      -
    101X  ASP*     3.7     2.9    -      -       -      -
    102X  LEU      3.2     0.2    -      -       -      -
    103X  VAL*     1.3    79.5    -      -       -      +
    105X  THR*     1.3    60.7    +      -       -      +
    107X  GLU*     3.4    13.6    +      -       -      +
    108X  LEU*     3.1    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 105 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23X  PHE*     3.8    27.1    -      -       +      -
     26X  LYS*     3.9    11.0    +      -       -      +
     84X  VAL*     3.4    39.9    -      -       +      -
    101X  ASP*     2.8    24.7    +      -       -      -
    102X  LEU      3.2     4.0    +      -       -      -
    104X  GLY*     1.3    74.3    -      -       -      +
    106X  LEU*     1.3    66.6    +      -       -      +
    108X  LEU*     3.0     7.8    +      -       +      +
    109X  LEU*     3.0    25.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 106 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23X  PHE*     4.0    15.7    -      -       +      -
     49X  LEU*     5.2     2.0    -      -       +      -
     53X  PHE*     3.9    31.0    -      -       +      -
    102X  LEU*     3.0    27.1    +      -       +      +
    103X  VAL*     3.7    12.8    -      -       +      +
    105X  THR*     1.3    78.0    -      -       -      +
    107X  GLU*     1.3    50.3    +      -       -      +
    109X  LEU*     3.5     5.6    +      -       +      +
    110X  ARG      2.8    28.8    +      -       -      -
    139X  ILE*     3.4    23.1    -      -       +      +
    142X  HIS*     4.1    25.6    -      -       +      -
    143X  ILE*     3.9    20.4    -      -       +      -
    146X  PHE*     4.3    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 107 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103X  VAL*     3.1    24.7    +      -       -      +
    104X  GLY*     3.5    14.8    -      -       -      +
    105X  THR      3.3     0.2    -      -       -      -
    106X  LEU*     1.3    75.3    -      -       -      +
    108X  LEU*     1.3    64.9    +      -       -      +
    110X  ARG*     3.5    30.2    +      -       -      +
    111X  ASP*     2.9    31.2    +      -       -      +
    143X  ILE*     3.9    16.8    -      -       +      +
    147X  LYS*     3.4    27.7    +      -       -      -
    154X  PRO      4.7     3.5    -      -       -      +
    155X  LEU*     6.0     0.2    -      -       -      -
    156X  GLU      5.7     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 108 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19X  ASN*     4.6     1.6    -      -       -      +
     83X  SER*     4.4    11.0    -      -       -      +
     84X  VAL*     3.4    42.8    -      -       +      +
    104X  GLY      3.1    12.4    +      -       -      +
    105X  THR*     3.0    12.8    +      -       +      +
    107X  GLU*     1.3    77.5    -      -       -      +
    109X  LEU*     1.3    66.3    +      -       -      +
    111X  ASP*     3.1     4.4    +      -       -      +
    112X  GLU*     3.0    50.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 109 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16X  GLN*     3.3    26.7    -      -       -      +
     19X  ASN*     4.0    19.5    -      -       +      +
     20X  LEU*     4.2    13.7    -      -       +      -
     23X  PHE*     3.8    38.4    -      -       +      -
     53X  PHE*     5.0     5.4    -      -       +      -
     84X  VAL*     4.4     7.2    -      -       +      -
    105X  THR*     3.0    21.3    +      -       +      +
    106X  LEU*     3.6     9.0    -      -       -      +
    108X  LEU*     1.3    77.0    -      -       +      +
    110X  ARG*     1.3    52.0    +      -       -      +
    112X  GLU*     3.4     3.2    +      -       -      -
    113X  TYR*     2.8    52.8    +      -       +      +
    139X  ILE*     4.2    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 110 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106X  LEU      2.8    20.2    +      -       -      +
    107X  GLU*     3.5    32.3    +      -       -      +
    108X  LEU      3.3     0.2    -      -       -      -
    109X  LEU*     1.3    73.0    -      -       -      +
    111X  ASP*     1.3    88.4    +      -       -      +
    113X  TYR*     3.8     5.7    -      -       -      +
    114X  LYS*     3.0    27.4    +      -       +      +
    136X  LYS*     4.0    20.6    -      -       +      +
    139X  ILE*     4.0    15.2    -      -       +      +
    140X  ASP*     3.4    25.7    +      -       -      +
    143X  ILE*     3.8    20.9    -      -       +      +
    154X  PRO      5.2     0.2    +      -       -      -
    155X  LEU*     4.0    25.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 111 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107X  GLU*     2.9    23.6    +      -       -      +
    108X  LEU*     3.8     4.0    -      -       -      +
    110X  ARG*     1.3   107.3    +      -       -      +
    112X  GLU*     1.3    61.7    +      -       +      +
    114X  LYS*     3.3    10.9    -      -       -      +
    115X  GLN*     3.2    29.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 112 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12X  PHE*     2.9    25.3    -      -       +      -
     15X  HIS*     3.4     7.1    +      -       -      -
     16X  GLN*     2.9    29.1    +      -       -      +
     19X  ASN*     3.1    13.8    +      -       -      -
     83X  SER*     2.9    27.3    +      -       -      -
    108X  LEU*     3.0    32.9    +      -       +      +
    109X  LEU*     3.9     4.5    -      -       -      +
    111X  ASP*     1.3    74.9    -      -       +      +
    113X  TYR*     1.3    58.6    +      -       -      +
    115X  GLN*     3.2    20.0    +      -       -      +
    116X  GLY      3.0    12.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 113 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12X  PHE*     4.0     9.4    -      +       -      -
     16X  GLN*     3.7    33.9    -      -       +      +
     20X  LEU*     3.3    27.8    -      -       +      +
     56X  GLN*     2.9    28.7    +      -       -      +
     60X  VAL*     5.1     1.8    -      -       +      +
    109X  LEU*     2.8    37.9    +      -       +      +
    110X  ARG*     3.8     4.7    -      -       -      +
    112X  GLU*     1.3    71.3    -      -       -      +
    114X  LYS*     1.3    60.4    +      -       -      +
    116X  GLY      3.2     1.0    +      -       -      -
    117X  ILE*     2.8    37.4    +      -       -      +
    132X  LEU*     4.1    21.1    -      -       +      +
    135X  PHE*     3.5    31.8    -      +       +      -
    136X  LYS*     4.2    13.9    -      -       +      -
    139X  ILE*     3.8    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 114 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124R  GLY*     3.4    27.1    +      -       -      -
    126R  ASP*     3.5    16.4    +      -       -      +
    110X  ARG*     3.0    13.4    +      -       +      +
    111X  ASP*     3.3    16.2    -      -       -      +
    113X  TYR*     1.3    76.6    -      -       -      +
    115X  GLN*     1.3    60.6    +      -       +      +
    117X  ILE*     3.4     8.4    +      -       +      +
    118X  GLU*     3.2    40.1    +      -       +      +
    136X  LYS*     4.2    19.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 115 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12X  PHE*     4.8     4.9    -      -       +      -
    111X  ASP*     3.2    19.8    +      -       -      +
    112X  GLU*     3.2    21.8    +      -       -      +
    114X  LYS*     1.3    75.7    -      -       +      +
    116X  GLY*     1.3    58.4    +      -       -      +
    118X  GLU*     3.4     6.2    +      -       -      +
    119X  LEU*     2.8    32.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 116 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12X  PHE*     3.6    34.5    -      -       -      -
    112X  GLU      3.0    11.3    +      -       -      -
    113X  TYR      3.2     0.9    +      -       -      -
    115X  GLN*     1.3    75.2    -      -       -      +
    117X  ILE*     1.3    59.1    +      -       -      +
    119X  LEU*     3.8     6.0    -      -       -      +
    120X  THR*     2.9    34.8    +      -       -      -
    132X  LEU*     3.6     7.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 117 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126R  ASP*     3.7    34.1    -      -       +      +
    127R  VAL*     6.1     0.2    -      -       +      -
    113X  TYR      2.8    20.7    +      -       -      +
    114X  LYS*     3.7     7.9    -      -       +      +
    115X  GLN      3.3     0.2    -      -       -      -
    116X  GLY*     1.3    74.1    -      -       -      +
    118X  GLU*     1.3    67.8    +      -       +      +
    120X  THR*     4.5     0.7    -      -       -      -
    121X  ASP*     2.9    26.1    +      -       +      +
    129X  ASN*     3.1    28.4    +      -       -      +
    132X  LEU*     3.7    24.9    -      -       +      +
    133X  ILE*     3.5    34.5    -      -       +      +
    136X  LYS*     4.2    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 118 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126R  ASP*     5.2     3.3    -      -       -      +
    114X  LYS*     3.2    34.8    +      -       +      +
    115X  GLN*     3.6     9.2    -      -       -      +
    117X  ILE*     1.3    81.6    -      -       +      +
    119X  LEU*     1.3    66.3    +      -       -      +
    120X  THR      3.2     0.2    +      -       -      -
    121X  ASP*     3.3    16.1    +      -       -      +
    122X  LYS*     3.1    30.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 119 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7X  VAL*     3.8    22.4    -      -       +      +
      8X  ASP      4.0     2.0    -      -       -      +
      9X  THR*     3.8    14.8    -      -       -      +
     12X  PHE*     3.6    38.1    -      -       +      -
    115X  GLN*     2.8    18.3    +      -       +      +
    116X  GLY*     4.1     8.3    -      -       -      +
    118X  GLU*     1.3    74.4    -      -       -      +
    120X  THR*     1.3    64.8    +      -       -      +
    122X  LYS*     3.3    25.1    -      -       -      +
    123X  GLU*     3.1    52.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 120 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9X  THR*     3.3    22.6    +      -       -      +
     12X  PHE*     5.7     1.4    -      -       -      -
    116X  GLY      2.9    21.8    +      -       -      -
    117X  ILE      3.9     2.5    -      -       -      -
    119X  LEU*     1.3    77.0    -      -       -      +
    121X  ASP*     1.3    62.8    +      -       -      +
    123X  GLU*     3.6     2.0    +      -       -      +
    124X  GLY      3.4     2.3    +      -       -      -
    125X  ASP*     2.9    55.5    +      -       +      +
    128X  THR*     3.6    15.6    -      -       -      +
    129X  ASN*     3.0    28.3    -      -       +      +
    132X  LEU*     4.1     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 121 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117X  ILE*     2.9    18.7    +      -       +      +
    118X  GLU*     3.3    17.1    +      -       -      +
    120X  THR*     1.3    75.4    -      -       -      +
    122X  LYS*     1.3    68.8    +      -       -      +
    123X  GLU      3.1     0.9    +      -       -      -
    124X  GLY*     3.2    12.7    +      -       -      -
    129X  ASN*     3.9    14.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 122 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7X  VAL      5.2     3.4    +      -       -      -
    118X  GLU*     3.1    22.3    +      -       +      +
    119X  LEU*     3.3    43.6    +      -       -      +
    121X  ASP*     1.3    81.8    +      -       -      +
    123X  GLU*     1.3    69.5    +      -       +      +
    124X  GLY      3.6     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 123 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7X  VAL      4.7     0.3    -      -       -      +
      8X  ASP*     3.7    17.8    -      -       -      +
      9X  THR*     3.2    25.7    +      -       -      +
    119X  LEU*     3.1    40.2    +      -       +      +
    120X  THR      3.6     3.6    +      -       -      +
    121X  ASP      3.1     1.4    -      -       -      -
    122X  LYS*     1.3    88.8    +      -       +      +
    124X  GLY*     1.3    62.2    +      -       -      +
    125X  ASP*     3.3     4.8    +      -       +      +
----------------------------------------------------------
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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