Contacts of the helix formed by residues 136 - 164 (chain A) in PDB entry 3OTB


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 SER 136 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  TRP*     3.8     8.6    -      -       -      -
     84A  ARG*     4.9     2.7    -      -       -      +
    134A  TYR      3.4     0.5    -      -       -      +
    135A  PRO*     1.3    81.9    -      -       -      +
    137A  ASN*     1.3    65.7    +      -       -      +
    138A  GLN*     3.7     9.4    +      -       -      +
    139A  THR*     2.6    55.3    +      -       -      +
    140A  LEU*     3.0    12.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  TRP*     3.2    19.4    +      -       -      +
     84A  ARG*     2.9    40.6    +      -       -      +
    136A  SER*     1.3    73.9    -      -       -      +
    138A  GLN*     1.3    52.5    +      -       -      +
    140A  LEU*     3.3     2.9    +      -       -      +
    141A  LYS*     2.8    45.0    +      -       -      +
    265A  LEU*     4.0    25.4    -      -       +      +
    266A  ASP*     5.6     4.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  SER*     3.1     8.9    -      -       -      +
    137A  ASN*     1.3    80.3    -      -       -      +
    139A  THR*     1.3    57.2    +      -       +      +
    141A  LYS*     3.4    18.3    +      -       -      +
    142A  ASP*     2.4    61.6    +      -       -      +
      8B  TYR*     5.1     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  TYR*     3.8    18.4    -      -       -      +
    135A  PRO*     3.6    11.8    -      -       +      +
    136A  SER*     2.6    52.2    +      -       -      +
    138A  GLN*     1.3    73.3    -      -       +      +
    140A  LEU*     1.3    59.3    +      -       -      +
    142A  ASP*     3.2     3.1    +      -       -      +
    143A  TYR*     2.8    26.9    +      -       -      +
      8B  TYR*     4.0    20.4    -      -       +      +
      9B  VAL*     3.8     4.8    -      -       -      +
     12B  PHE*     4.2    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 140 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  TRP*     3.4    46.2    -      -       +      +
     25A  VAL*     3.7    29.8    -      -       +      -
     69A  VAL*     6.3     0.2    -      -       +      -
     70A  ILE*     5.8     0.7    -      -       +      -
     81A  VAL*     3.7    23.8    -      -       +      -
    134A  TYR*     4.0    11.2    -      -       +      +
    136A  SER      3.0    13.0    +      -       -      +
    137A  ASN      3.5     7.2    -      -       -      +
    139A  THR*     1.3    74.2    +      -       -      +
    141A  LYS*     1.3    60.0    +      -       -      +
    143A  TYR*     2.8    34.2    +      -       +      +
    144A  LEU*     3.0    16.1    +      -       +      +
    258A  TRP*     6.1     0.2    -      -       +      -
    265A  LEU*     4.6    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 141 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  ASN*     2.8    25.6    +      -       -      +
    138A  GLN*     3.6    20.1    +      -       -      +
    140A  LEU*     1.3    73.2    -      -       -      +
    142A  ASP*     1.3    61.2    +      -       -      +
    144A  LEU*     3.1    12.0    +      -       -      +
    145A  SER*     2.9    33.2    +      -       -      +
    252A  ILE      4.7     2.6    -      -       -      +
    253A  ILE      6.0     1.3    -      -       -      +
    255A  ASP*     6.1     0.4    -      -       -      -
    258A  TRP*     3.5    54.6    -      -       +      +
    265A  LEU*     3.6    25.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 142 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  GLN*     2.4    53.4    +      -       -      +
    139A  THR      3.3     5.2    -      -       -      +
    141A  LYS*     1.3    76.7    -      -       -      +
    143A  TYR*     1.3    58.0    +      -       -      +
    145A  SER*     3.7     1.4    -      -       -      -
    146A  TRP*     2.8    29.5    +      -       -      +
      5B  LYS      4.9     0.7    -      -       -      +
      6B  PHE*     3.7    29.2    -      -       +      -
      8B  TYR*     2.8    39.1    +      -       +      +
      9B  VAL*     3.7     9.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 143 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  VAL*     3.8    22.7    -      -       +      -
     27A  ARG*     2.7    41.9    +      -       -      +
     79A  SER*     2.9    20.3    +      -       -      -
     81A  VAL*     5.4     0.9    -      -       +      -
    132A  VAL*     6.0     2.5    -      -       +      -
    134A  TYR*     3.3    39.3    -      +       +      -
    139A  THR      2.8    12.8    +      -       -      +
    140A  LEU*     2.8    19.7    +      -       +      +
    142A  ASP*     1.3    76.7    -      -       -      +
    144A  LEU*     1.3    73.8    -      -       +      -
    146A  TRP*     3.0    45.8    +      +       -      +
    147A  ARG*     3.0    22.8    +      -       +      +
      9B  VAL*     3.8     8.7    -      -       +      +
     13B  GLU*     6.0     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 144 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  ILE*     4.4    15.5    -      -       +      -
     71A  ALA      5.7     0.9    -      -       -      -
     72A  TYR*     3.9    31.6    -      -       +      -
     79A  SER*     5.3     2.2    -      -       -      -
     81A  VAL*     4.9    13.0    -      -       +      -
    140A  LEU*     3.0    21.7    +      -       +      +
    141A  LYS*     3.4     8.5    -      -       -      +
    143A  TYR*     1.3    92.5    -      -       +      +
    145A  SER*     1.3    59.2    +      -       -      +
    147A  ARG*     2.6    27.3    +      -       +      +
    148A  GLN*     2.8    12.6    +      -       -      +
    252A  ILE*     4.0    19.8    -      -       +      +
    258A  TRP*     3.7    33.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 145 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  LYS*     2.9    19.0    +      -       -      +
    142A  ASP      3.7     0.4    -      -       -      -
    144A  LEU*     1.3    75.6    -      -       -      +
    146A  TRP*     1.3    58.2    +      -       -      +
    148A  GLN      4.5     0.2    -      -       -      +
    149A  ALA*     2.8    37.7    +      -       -      +
    252A  ILE*     4.4     2.9    +      -       -      +
    253A  ILE*     3.6    38.8    +      -       -      +
      6B  PHE*     3.3    37.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  ARG*     4.7    11.0    -      -       -      -
    134A  TYR*     5.4     0.2    -      -       -      -
    142A  ASP      2.8    15.8    +      -       -      +
    143A  TYR*     3.0    30.3    -      +       -      +
    144A  LEU      3.0     0.2    -      -       -      -
    145A  SER*     1.3    75.2    -      -       -      +
    147A  ARG*     1.3    89.9    +      -       -      +
    149A  ALA*     4.0     2.4    -      -       +      +
    150A  ASP*     3.0    29.8    +      -       +      +
      6B  PHE*     3.8    21.0    -      -       +      +
      7B  GLU*     3.5    54.2    +      -       +      +
      9B  VAL*     3.6    19.5    -      -       +      -
     10B  ARG*     4.0    37.7    -      -       +      -
     13B  GLU*     4.8     3.6    -      -       -      -
    302B  3PO      4.8     8.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  ARG*     4.4     5.8    -      -       -      +
     72A  TYR*     3.7    21.3    -      -       +      -
     74A  GLN*     3.0    11.6    +      -       -      +
     77A  GLU*     3.1    37.2    +      -       -      +
     79A  SER*     4.5     3.1    -      -       -      +
    143A  TYR*     3.0    38.1    +      -       +      +
    144A  LEU*     2.6    15.8    +      -       +      +
    146A  TRP*     1.3   121.8    -      -       -      +
    148A  GLN*     1.3    60.6    +      -       -      +
    150A  ASP*     2.9    39.7    +      -       -      +
    151A  CYS      2.8    24.6    +      -       -      -
    302B  3PO      4.9     9.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  TYR*     3.0    22.4    +      -       +      +
    144A  LEU      2.8    15.1    +      -       -      +
    145A  SER      4.1     2.0    -      -       -      +
    147A  ARG*     1.3    73.4    -      -       -      +
    149A  ALA*     1.3    52.0    +      -       -      +
    151A  CYS*     2.9     6.2    -      -       -      +
    152A  HIS*     2.8    34.4    +      -       +      +
    207A  ARG      5.3     0.7    -      -       -      +
    208A  LYS*     2.9    45.2    +      -       +      +
    250A  CYS      3.2    23.2    +      -       -      -
    251A  ASP*     3.0    15.5    -      -       -      +
    252A  ILE*     2.9    39.5    +      -       +      +
    253A  ILE*     3.3    12.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  SER      2.8    25.2    +      -       -      +
    146A  TRP*     4.0     3.8    -      -       +      +
    148A  GLN*     1.3    69.8    -      -       -      +
    150A  ASP*     1.3    66.0    +      -       -      +
    152A  HIS*     3.3     8.4    +      -       -      +
    153A  ILE*     3.0    37.4    +      -       +      +
    253A  ILE*     4.0    15.0    -      -       +      +
      6B  PHE*     4.4    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  GLN*     2.7    22.9    -      -       -      +
    146A  TRP*     3.0    20.5    +      -       +      +
    147A  ARG*     2.9    35.8    +      -       -      +
    149A  ALA*     1.3    75.6    -      -       -      +
    151A  CYS*     1.3    57.1    +      -       -      +
    153A  ILE*     3.2     9.3    +      -       -      +
    154A  ASN*     2.3    54.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  TYR*     3.4    15.7    -      -       -      +
     74A  GLN*     3.5    29.2    -      -       -      +
    147A  ARG      2.8     4.9    +      -       -      -
    148A  GLN      2.9    14.1    +      -       -      +
    150A  ASP*     1.3    76.6    -      -       -      +
    152A  HIS*     1.3    55.9    +      -       -      -
    154A  ASN*     3.0     6.1    +      -       -      +
    155A  ASN*     2.9    32.2    +      -       -      +
    205A  MET      5.5     0.2    -      -       -      -
    206A  TYR      3.9    15.7    -      -       -      -
    208A  LYS      4.1     4.3    -      -       -      -
    209A  GLY*     3.7    30.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  GLN*     2.8    18.4    +      -       +      +
    149A  ALA*     3.3     8.9    +      -       -      +
    151A  CYS*     1.3    74.2    -      -       -      +
    153A  ILE*     1.3    70.1    +      -       +      +
    155A  ASN*     4.8     0.9    -      -       -      -
    156A  LEU*     3.3    42.2    +      -       +      +
    184A  ALA*     6.1     3.1    -      -       +      -
    199A  TYR*     3.9    27.1    +      +       -      -
    207A  ARG*     3.9    21.1    -      -       +      +
    208A  LYS*     5.3    10.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  ALA*     3.0    26.3    +      -       +      +
    150A  ASP*     3.6     8.3    -      -       -      +
    151A  CYS      3.2     0.2    -      -       -      -
    152A  HIS*     1.3    87.7    -      -       +      +
    154A  ASN*     1.3    67.5    +      -       -      +
    156A  LEU*     4.3     4.0    -      -       -      +
    157A  TYR*     3.4    19.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  GLN*     3.9     3.8    +      -       -      -
     75A  SER*     6.3     0.2    -      -       -      -
    150A  ASP*     2.3    55.3    +      -       -      +
    151A  CYS*     3.0     6.9    +      -       -      +
    153A  ILE*     1.3    85.1    -      -       -      +
    155A  ASN*     1.3    54.6    +      -       -      +
    156A  LEU      3.3     0.2    -      -       -      -
    157A  TYR*     3.1     3.3    +      -       -      +
    158A  ASN*     2.6    53.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  PRO*     4.5     3.8    -      -       -      +
     46A  ASN*     3.0    29.7    +      -       -      +
    151A  CYS*     2.9    15.0    +      -       -      +
    152A  HIS      4.4     0.2    -      -       -      +
    154A  ASN*     1.3    76.7    -      -       -      +
    156A  LEU*     1.3    58.9    +      -       -      +
    158A  ASN*     4.5     3.8    -      -       -      +
    159A  THR*     2.6    46.6    +      -       -      -
    199A  TYR*     3.4    21.8    +      -       -      +
    202A  GLU*     5.2     3.4    -      -       -      +
    206A  TYR*     2.7    45.4    +      -       -      +
    207A  ARG*     3.4     3.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 156 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152A  HIS*     3.3    36.5    +      -       +      +
    153A  ILE*     4.7     3.6    -      -       -      +
    155A  ASN*     1.3    78.1    -      -       -      +
    157A  TYR*     1.3    60.1    +      -       -      +
    159A  THR*     4.3     0.6    -      -       -      -
    160A  VAL*     3.3    21.8    +      -       -      +
    184A  ALA*     4.3    28.0    -      -       +      +
    187A  LYS*     3.9    15.4    -      -       +      +
    188A  ASN*     4.4    23.3    -      -       -      +
    191A  LEU*     4.9     3.3    -      -       +      +
    199A  TYR*     3.5    45.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 157 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  ILE      3.4    18.0    +      -       -      +
    154A  ASN*     3.1     6.1    +      -       -      +
    155A  ASN      3.1     0.6    -      -       -      -
    156A  LEU*     1.3    80.2    -      -       -      +
    158A  ASN*     1.3    74.5    +      -       -      +
    160A  VAL*     3.3     8.2    -      -       -      +
    161A  PHE*     2.9    53.8    +      +       +      +
    176A  GLN*     4.0    27.9    +      -       -      +
    179A  LEU*     4.0    24.1    -      -       +      +
    180A  GLN*     6.1     0.2    -      -       -      +
    187A  LYS*     3.8    23.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 158 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  PRO*     3.7    20.7    +      -       +      +
    154A  ASN*     2.6    42.4    +      -       -      +
    155A  ASN*     4.2     3.2    -      -       -      +
    157A  TYR*     1.3    85.9    -      -       -      +
    159A  THR*     1.3    58.3    +      -       -      +
    161A  PHE*     3.7     9.0    -      -       -      -
    162A  TRP*     2.8    50.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  PRO*     3.7    25.9    -      -       +      +
     46A  ASN*     4.6     0.7    +      -       -      -
    155A  ASN*     2.6    36.6    +      -       -      -
    156A  LEU      4.4     2.0    -      -       -      -
    158A  ASN*     1.3    79.3    -      -       -      +
    160A  VAL*     1.3    58.4    +      -       -      +
    162A  TRP*     4.1     1.7    -      -       -      +
    163A  ALA*     3.2    23.4    +      -       -      +
    191A  LEU*     4.0    27.4    -      -       +      -
    197A  ILE*     5.2     4.9    -      -       +      -
    199A  TYR*     4.0    12.7    -      -       +      -
    202A  GLU*     4.7    18.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  LEU      3.3    20.6    +      -       -      +
    157A  TYR      3.3     7.2    -      -       -      +
    159A  THR*     1.3    77.3    -      -       -      +
    161A  PHE*     1.3    62.1    +      -       -      +
    163A  ALA*     3.9     3.8    -      -       -      +
    164A  LEU*     3.2    26.3    +      -       +      +
    179A  LEU*     3.5    26.2    -      -       +      -
    187A  LYS*     4.1    13.9    -      -       +      +
    190A  ILE*     2.9    39.9    -      -       +      -
    191A  LEU*     4.1    21.8    -      -       +      -
    195A  PHE*     5.0     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157A  TYR*     2.9    48.0    +      +       +      +
    158A  ASN*     3.0    14.1    +      -       -      +
    160A  VAL*     1.3    79.9    -      -       -      +
    162A  TRP*     1.3    87.9    +      +       -      +
    164A  LEU      3.7     1.4    +      -       -      -
    165A  ILE*     3.0    48.4    +      -       +      +
    172A  PRO*     4.0    21.8    -      -       +      -
    175A  ALA*     3.8    31.8    -      -       +      +
    176A  GLN*     4.1     8.7    -      -       +      -
    179A  LEU*     4.0     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  LYS*     3.5    55.8    -      -       +      +
     45A  PRO*     3.9    19.6    -      -       +      +
    158A  ASN*     2.8    33.2    +      -       +      +
    159A  THR      4.4     2.0    -      -       -      +
    161A  PHE*     1.3    96.4    -      +       -      +
    163A  ALA*     1.3    59.1    +      -       -      +
    164A  LEU      3.2     2.2    -      -       -      -
    165A  ILE*     3.3    40.8    -      -       +      -
    166A  GLN*     2.9    54.0    +      -       +      +
    167A  GLN*     5.1     0.2    -      -       -      -
    172A  PRO*     5.5     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159A  THR      3.2    19.4    +      -       -      +
    160A  VAL*     4.3     6.3    -      -       -      -
    161A  PHE      3.4     0.4    -      -       -      -
    162A  TRP*     1.3    78.4    -      -       -      +
    164A  LEU*     1.3    57.1    +      -       -      +
    167A  GLN*     3.3    19.7    +      -       -      +
    168A  SER      3.0    22.2    +      -       -      -
    191A  LEU*     4.6     0.9    -      -       +      -
    195A  PHE*     3.1    40.2    -      -       +      -
    197A  ILE*     4.4    13.0    -      -       +      -
----------------------------------------------------------
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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  VAL*     3.2    24.4    +      -       +      +
    161A  PHE      3.9     0.7    -      -       -      +
    162A  TRP      3.2     0.4    -      -       -      -
    163A  ALA*     1.3    78.1    -      -       -      +
    165A  ILE*     1.3    58.0    +      -       -      +
    168A  SER*     3.2    16.4    -      -       -      +
    170A  LEU*     2.8    41.7    +      -       +      +
    175A  ALA*     3.9    38.1    -      -       +      +
    178A  ARG*     4.3    15.9    -      -       +      -
    179A  LEU*     4.3    13.0    -      -       +      -
    190A  ILE*     4.6     9.6    -      -       +      -
    194A  GLU*     4.5     5.2    -      -       +      +
    195A  PHE*     3.3    27.8    -      -       +      -
----------------------------------------------------------
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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