Contacts of the helix formed by residues 144 - 172 (chain A) in PDB entry 5TWV


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 LEU 144 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  ILE*     5.3    11.2    -      -       +      -
    142A  CYS*     2.9     6.0    +      -       +      -
    143A  PRO*     1.3    79.1    -      -       +      +
    145A  ALA*     1.3    63.3    +      -       -      +
    146A  ILE      3.3     1.3    -      -       -      -
    147A  LEU*     3.1    27.2    -      -       +      +
    148A  ILE*     3.1    28.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 145 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  TRP*     3.4    10.2    -      -       +      -
     93A  ILE*     3.6    34.3    -      -       +      -
    110A  CYS*     4.2     3.6    -      -       -      -
    111A  VAL*     5.7     1.3    -      -       +      -
    142A  CYS*     3.2    28.4    +      -       -      -
    144A  LEU*     1.3    77.8    -      -       -      +
    146A  ILE*     1.3    60.3    +      -       +      +
    148A  ILE*     3.5     8.7    -      -       -      +
    149A  LEU*     2.9    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  CYS*     5.4     0.7    -      -       -      -
    138A  VAL*     4.6    12.8    -      -       +      -
    139A  THR      4.2    18.4    -      -       -      +
    140A  GLU*     5.7     2.2    -      -       -      -
    142A  CYS      3.9    10.1    -      -       -      +
    143A  PRO*     3.6    32.5    -      -       +      +
    145A  ALA*     1.3    76.6    -      -       +      +
    147A  LEU*     1.3    67.9    +      -       +      +
    149A  LEU*     3.6    10.0    +      -       -      +
    150A  ILE*     3.1    29.4    +      -       +      +
    118C  SER*     4.1    20.0    -      -       -      +
    122C  LEU*     6.3     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  PRO      3.3    22.4    -      -       -      +
    144A  LEU*     3.1    29.2    -      -       +      +
    146A  ILE*     1.3    82.8    -      -       +      +
    148A  ILE*     1.3    74.0    +      -       +      +
    150A  ILE*     3.4    15.1    +      -       +      +
    151A  VAL*     3.2    32.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  PHE*     6.6     0.2    -      -       +      -
     89A  VAL*     4.4    25.8    -      -       +      +
     90A  TRP*     3.6    21.3    -      -       +      -
     93A  ILE*     5.6     4.7    -      -       +      -
    144A  LEU*     3.1    30.2    +      -       +      +
    145A  ALA*     3.5    11.0    -      -       -      +
    146A  ILE      3.2     0.4    -      -       -      -
    147A  LEU*     1.3    87.6    -      -       +      +
    149A  LEU*     1.3    60.1    +      -       -      +
    150A  ILE      3.1     1.8    -      -       -      -
    151A  VAL*     3.1    12.6    +      -       +      +
    152A  GLN*     3.0    27.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  TRP*     3.5    31.4    -      -       +      -
    123A  PHE*     4.1    13.5    -      -       +      -
    127A  VAL*     4.6    18.5    -      -       +      +
    138A  VAL*     4.8    16.4    -      -       +      -
    145A  ALA      2.9    15.5    +      -       -      +
    146A  ILE*     3.7    11.2    -      -       -      +
    147A  LEU      3.3     0.4    -      -       -      -
    148A  ILE*     1.3    78.2    -      -       -      +
    150A  ILE*     1.3    59.7    +      -       +      +
    152A  GLN*     3.4     4.9    +      -       -      +
    153A  ASN*     3.1    25.2    +      -       +      +
    125C  ILE*     5.2     9.6    -      -       +      -
    131C  ILE*     4.8    14.8    -      -       +      -
    133C  PHE*     4.7    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  ILE*     3.1    22.4    -      -       +      +
    147A  LEU*     3.4    16.1    +      -       -      +
    148A  ILE      3.1     0.4    -      -       -      -
    149A  LEU*     1.3    82.9    -      -       +      +
    151A  VAL*     1.3    63.2    +      -       +      +
    153A  ASN*     3.5     4.9    +      -       -      +
    154A  ILE*     3.2    29.9    +      -       +      +
     80C  LEU*     4.7    16.4    -      -       +      -
     83C  TRP*     3.6    30.9    -      -       +      -
    121C  PHE*     4.0    28.9    -      -       +      -
    125C  ILE*     5.0     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  PHE*     4.6     3.0    -      -       +      -
    147A  LEU*     3.2    26.0    -      -       +      +
    148A  ILE*     3.1    14.7    +      -       +      +
    150A  ILE*     1.3    78.7    -      -       +      +
    152A  GLN*     1.3    62.5    +      -       -      +
    154A  ILE*     3.4    10.3    -      -       +      +
    155A  VAL*     3.3    31.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  PHE*     3.8    25.1    -      -       +      -
     90A  TRP*     5.1     8.3    -      -       +      -
    127A  VAL*     4.9     8.1    -      -       +      -
    128A  GLN*     2.6    35.7    +      -       -      +
    148A  ILE*     3.0    16.7    +      -       +      +
    149A  LEU*     3.6     9.9    -      -       -      +
    151A  VAL*     1.3    80.2    -      -       -      +
    153A  ASN*     1.3    56.5    +      -       -      +
    156A  GLY      3.2    12.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  VAL*     3.4    36.1    +      -       +      +
    128A  GLN*     4.4     4.0    -      -       -      +
    149A  LEU*     3.1    15.9    +      -       +      +
    150A  ILE*     4.0     5.8    -      -       -      +
    151A  VAL      3.3     0.2    -      -       -      -
    152A  GLN*     1.3    80.1    -      -       -      +
    154A  ILE*     1.3    58.8    -      -       -      +
    156A  GLY      3.9     0.7    -      -       -      -
    157A  LEU*     3.0    30.5    +      -       -      +
     83C  TRP*     5.5     6.5    -      -       +      -
    125C  ILE*     5.7     3.4    -      -       +      -
    129C  VAL*     3.1    42.0    -      -       -      +
    131C  ILE*     3.8    13.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150A  ILE*     3.2    23.3    +      -       +      +
    151A  VAL*     3.4    15.9    -      -       +      +
    153A  ASN*     1.3    74.4    -      -       -      +
    155A  VAL*     1.3    69.9    +      -       +      +
    157A  LEU*     4.0     7.4    -      -       +      +
    158A  MET*     3.2    33.7    +      -       +      +
     75C  PHE      4.6     8.7    -      -       -      +
     76C  THR*     4.1    26.2    -      -       +      +
     79C  PHE*     4.3    32.8    -      -       +      -
     83C  TRP*     4.8    12.5    -      -       +      -
    163C  MET*     5.8     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  SER*     6.2     0.2    -      -       -      +
     86A  PHE*     4.5    17.0    -      -       +      -
    151A  VAL*     3.3    27.4    +      -       +      +
    152A  GLN      4.5     1.1    -      -       -      +
    153A  ASN      3.4     0.2    -      -       -      -
    154A  ILE*     1.3    85.2    -      -       +      +
    156A  GLY*     1.3    57.2    +      -       -      +
    157A  LEU      3.2     2.2    -      -       -      -
    158A  MET*     3.4     6.9    +      -       +      +
    159A  ILE*     3.2    37.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 156 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  PHE*     5.6     1.2    -      -       -      -
     86A  PHE*     4.9     2.2    -      -       -      -
    128A  GLN*     3.0    38.6    -      -       -      +
    152A  GLN      3.2    10.3    +      -       -      -
    153A  ASN      3.9     0.7    -      -       -      -
    154A  ILE      3.4     0.2    -      -       -      -
    155A  VAL*     1.3    76.8    -      -       -      +
    157A  LEU*     1.3    60.6    +      -       -      +
    159A  ILE*     3.7    18.8    -      -       -      +
    160A  ASN*     3.6    17.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 157 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  GLN      5.8     2.2    -      -       -      +
    153A  ASN*     3.0    25.8    +      -       -      +
    154A  ILE*     4.0     9.2    -      -       +      +
    156A  GLY*     1.3    77.4    -      -       -      +
    158A  MET*     1.3    63.6    +      -       -      +
    159A  ILE      3.5     0.2    -      -       -      -
    160A  ASN*     3.7    15.0    +      -       -      +
    161A  ALA*     3.4    20.9    +      -       +      +
     79C  PHE*     4.5    13.7    -      -       +      -
    129C  VAL*     5.2    12.6    -      -       +      -
    160C  ASN*     3.3    32.5    -      -       -      +
    163C  MET*     4.0    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 158 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154A  ILE*     3.2    28.8    +      -       +      +
    155A  VAL*     3.6    10.1    -      -       +      +
    156A  GLY      3.3     0.4    -      -       -      -
    157A  LEU*     1.3    76.8    -      -       -      +
    159A  ILE*     1.3    59.6    +      -       +      +
    160A  ASN      3.2     1.8    -      -       -      -
    161A  ALA*     3.4     3.6    +      -       -      +
    162A  ILE*     3.0    51.6    +      -       +      +
     72C  LEU*     4.3    29.6    -      -       +      +
     75C  PHE*     4.3    20.2    -      -       +      -
     76C  THR*     5.6     2.5    -      -       +      -
    163C  MET*     3.9    33.9    -      -       +      -
    167C  ILE*     4.7    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  SER      5.0     1.1    -      -       -      +
     79A  PHE*     3.9    34.1    -      -       +      -
     82A  SER*     4.1    26.9    -      -       -      +
     83A  TRP*     5.7     2.5    -      -       +      +
     86A  PHE*     5.8     0.9    -      -       +      -
    155A  VAL*     3.2    25.5    +      -       +      +
    156A  GLY*     3.7    17.3    -      -       -      +
    158A  MET*     1.3    75.9    -      -       +      +
    160A  ASN*     1.3    65.8    +      -       -      +
    161A  ALA      3.2     0.7    -      -       -      -
    162A  ILE*     3.8    15.1    -      -       +      +
    163A  MET*     3.3    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  PHE*     4.0    15.2    -      -       +      -
    156A  GLY      3.6    16.8    -      -       -      +
    157A  LEU*     3.7    17.5    +      -       -      +
    158A  MET      3.2     0.4    -      -       -      -
    159A  ILE*     1.3    82.0    -      -       -      +
    161A  ALA*     1.3    61.8    +      -       -      +
    163A  MET*     3.8     5.8    +      -       -      +
    164A  LEU*     3.2    31.1    +      -       -      +
    157G  LEU*     3.3    34.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157A  LEU*     3.4    16.2    +      -       +      +
    158A  MET*     3.4     8.5    +      -       -      +
    160A  ASN*     1.3    79.9    -      -       -      +
    162A  ILE*     1.3    62.9    +      -       -      +
    163A  MET      3.1     1.8    -      -       -      -
    164A  LEU*     3.1    20.3    +      -       -      +
    165A  GLY      3.5     4.3    +      -       -      -
    163C  MET*     4.8    10.1    -      -       +      -
    164C  LEU*     3.2    33.4    -      -       +      +
    167C  ILE*     3.5    18.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  PHE*     5.3    16.4    -      -       +      -
     75A  PHE*     6.3     1.3    -      -       +      -
    158A  MET*     3.0    42.2    +      -       +      +
    159A  ILE*     4.1    13.0    -      -       +      +
    160A  ASN      3.5     0.2    -      -       -      -
    161A  ALA*     1.3    75.6    -      -       -      +
    163A  MET*     1.3    61.9    +      -       -      +
    165A  GLY*     3.6     2.5    +      -       -      -
    166A  CYS*     3.4    21.0    +      -       +      +
     68C  TRP*     6.2     6.7    -      -       +      -
     72C  LEU*     6.4     0.2    -      -       +      -
    167C  ILE*     4.2    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  PHE*     3.8    48.2    -      -       +      +
     79A  PHE*     3.8    19.3    -      -       +      -
    159A  ILE      3.3    16.3    +      -       -      +
    160A  ASN*     3.9     9.9    -      -       -      +
    161A  ALA      3.1     0.6    -      -       -      -
    162A  ILE*     1.3    80.7    -      -       -      +
    164A  LEU*     1.3    64.1    +      -       +      +
    166A  CYS*     3.3     4.9    +      -       -      +
    167A  ILE*     3.1    30.1    +      -       +      +
    154G  ILE*     5.8     3.4    -      -       +      -
    157G  LEU*     4.0    27.8    -      -       +      +
    158G  MET*     3.9    28.0    -      -       +      -
    161G  ALA*     4.8    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  ASN*     3.2    28.7    -      -       -      +
    161A  ALA*     3.1     6.7    +      -       -      +
    163A  MET*     1.3    80.7    -      -       +      +
    165A  GLY*     1.3    58.5    +      -       -      +
    167A  ILE*     3.2    21.3    -      -       -      +
    168A  PHE*     3.4    12.5    +      -       -      +
    164C  LEU*     3.9    34.8    -      -       +      -
    161G  ALA*     3.2    39.0    -      -       +      +
    164G  LEU*     3.9    20.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161A  ALA      3.5     7.6    +      -       -      -
    162A  ILE*     3.6     3.9    +      -       -      -
    163A  MET      3.3     0.4    -      -       -      -
    164A  LEU*     1.3    79.7    -      -       -      +
    166A  CYS*     1.3    60.2    +      -       -      +
    168A  PHE      4.0     0.4    -      -       -      -
    169A  MET*     3.0    28.4    +      -       -      +
    167C  ILE*     5.6     2.2    -      -       -      -
    168C  PHE*     3.3    35.6    -      -       -      -
    171C  THR*     5.3     7.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  PHE*     5.2    15.0    -      -       +      -
     63A  LEU*     3.9    39.0    -      -       -      -
     64A  VAL*     4.7     9.6    -      -       -      +
     71A  THR*     6.1     1.5    -      -       -      +
     75A  PHE*     3.8    29.2    -      -       +      -
    162A  ILE*     3.4    16.3    +      -       +      +
    163A  MET      3.3     2.6    +      -       -      +
    165A  GLY*     1.3    78.0    -      -       -      +
    167A  ILE*     1.3    64.5    +      -       -      +
    169A  MET*     3.6    13.9    +      -       -      +
    170A  LYS*     3.7    10.7    +      -       -      +
    171C  THR*     6.3     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68A  TRP*     4.7    16.4    -      -       +      -
     71A  THR*     6.2     0.9    -      -       -      -
     75A  PHE*     3.8    27.8    -      -       +      -
    163A  MET*     3.1    24.9    +      -       +      +
    164A  LEU*     3.2    15.0    -      -       +      +
    166A  CYS*     1.3    75.0    -      -       -      +
    168A  PHE*     1.3    78.9    +      -       +      +
    170A  LYS*     3.4     8.8    +      -       -      +
    171A  THR*     3.3    18.7    +      -       -      -
    158G  MET*     4.7    13.9    -      -       +      -
    161G  ALA*     3.6    37.0    -      -       +      +
    162G  ILE*     4.2    15.9    -      -       +      +
    165G  GLY*     5.4     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164A  LEU      3.4    15.7    +      -       -      +
    165A  GLY      3.9     4.9    -      -       -      +
    166A  CYS      3.3     0.2    -      -       -      -
    167A  ILE*     1.3    86.6    -      -       +      +
    169A  MET*     1.3    61.6    +      -       -      +
    171A  THR*     2.8    30.2    +      -       -      -
    172A  ALA*     3.3    13.3    +      -       +      +
    168C  PHE*     3.6    30.5    -      +       +      -
    165G  GLY*     3.3    43.3    -      -       -      -
    168G  PHE*     3.6    31.4    -      +       +      -
    169G  MET*     3.5    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  PHE*     6.5     0.7    -      -       +      -
     64A  VAL*     3.7    35.2    -      -       +      +
    165A  GLY      3.0    21.7    +      -       -      +
    166A  CYS*     3.7     6.5    -      -       -      +
    167A  ILE      3.3     0.2    -      -       -      -
    168A  PHE*     1.3    80.0    -      -       -      +
    170A  LYS*     1.3    59.0    +      -       -      +
    171A  THR      3.3     0.2    -      -       -      -
    172A  ALA*     3.6    14.0    +      -       +      +
    173A  GLN*     3.9     7.6    +      -       -      -
    168C  PHE*     3.5    29.2    -      -       +      -
    171C  THR*     5.3     9.4    -      -       -      +
    172C  ALA*     4.6    15.3    -      -       +      -
    293C  THR      4.9     6.7    -      -       -      +
    294C  THR*     3.1    39.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  VAL*     4.7    19.3    -      -       +      +
     68A  TRP*     4.0    28.9    -      -       +      -
     71A  THR*     6.1     3.1    -      -       +      -
    166A  CYS      3.7     8.6    +      -       -      +
    167A  ILE*     3.4    10.0    +      -       -      +
    168A  PHE      3.1     1.0    -      -       -      -
    169A  MET*     1.3    75.8    -      -       -      +
    171A  THR*     1.3    59.9    +      -       -      +
    172A  ALA      3.1     5.7    +      -       -      -
    173A  GLN*     3.7    30.4    +      -       -      +
     60G  PHE*     4.6     3.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  ILE*     3.3    11.5    +      -       -      -
    168A  PHE*     2.8    18.1    +      -       -      -
    170A  LYS*     1.3    78.1    -      -       -      +
    172A  ALA*     1.3    58.2    +      -       -      +
    173A  GLN      3.6     1.2    -      -       -      +
    294A  THR*     5.9     0.3    -      -       -      +
     60G  PHE*     3.3    56.3    -      -       -      +
    165G  GLY*     5.3    11.4    -      -       -      -
    169G  MET*     5.3    10.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168A  PHE*     3.3    21.8    +      -       +      +
    169A  MET*     3.6    10.3    +      -       +      +
    170A  LYS      3.1     1.2    -      -       -      -
    171A  THR*     1.3    80.2    -      -       -      +
    173A  GLN*     1.3    62.6    +      -       -      +
    174A  ALA*     3.3     3.8    +      -       -      +
    294A  THR*     5.0     6.2    +      -       +      -
    296A  ILE*     3.5    30.6    -      -       +      +
    293C  THR      5.3     2.1    -      -       -      +
    169G  MET*     4.6    19.3    -      -       +      -
----------------------------------------------------------
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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