Contacts of the helix formed by residues 86 - 109 (chain B) in PDB entry 2OX4


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 GLY 86 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  GLY      5.6     0.2    -      -       -      -
     85A  GLY      3.9     1.3    -      -       -      -
     86A  GLY*     3.3    19.7    -      -       -      -
     85B  GLY*     1.3    74.6    -      -       -      -
     87B  THR*     1.3    66.5    +      -       -      +
     88B  VAL      3.3     2.7    -      -       -      -
     89B  ILE      3.9     0.4    -      -       -      -
     90B  PHE*     2.9    34.3    +      -       -      +
    268B  TYR*     4.0    10.7    -      -       -      -
    501B   CL      3.5     2.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 87 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  TRP*     3.6    37.1    +      -       +      -
     85A  GLY      2.9    24.3    +      -       -      -
     89A  ILE*     3.9    10.1    -      -       -      -
     40B  ILE*     3.9    18.6    -      -       +      -
     86B  GLY*     1.3    70.8    -      -       -      +
     88B  VAL*     1.3    60.9    +      -       +      +
     90B  PHE*     4.1     1.0    -      -       -      +
     91B  SER*     3.0    29.1    +      -       -      -
    268B  TYR*     2.8    40.8    +      -       +      +
    291B  THR*     4.7     5.4    -      -       +      -
    501B   CL      3.4     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 88 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ALA*     4.0     8.5    -      -       +      -
     52A  ILE*     4.8     0.4    -      -       +      -
     88A  VAL*     3.9     9.0    -      -       +      -
     89A  ILE*     3.9    25.4    -      -       +      -
     40B  ILE*     4.0    13.5    -      -       +      -
     45B  GLY*     4.9     0.9    -      -       -      +
     48B  ALA*     3.4    48.9    -      -       +      +
     49B  ALA*     4.0     2.2    -      -       -      +
     52B  ILE*     3.6    19.1    -      -       +      +
     87B  THR*     1.3    73.5    -      -       -      +
     89B  ILE*     1.3    68.4    +      -       -      +
     91B  SER*     2.9    21.3    +      -       -      -
     92B  GLY      3.1     6.9    +      -       -      -
    501B   CL      3.1    10.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 89 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  VAL      5.1     1.3    -      -       -      +
     45A  GLY*     5.6     0.9    -      -       -      -
     87A  THR*     3.9    12.8    -      -       -      +
     88A  VAL*     4.0    13.0    -      -       +      -
     52B  ILE*     3.9    18.4    -      -       +      -
     56B  TYR*     3.1    31.8    +      -       -      +
     81B  TRP*     3.8    26.0    -      -       +      +
     82B  GLY*     3.8    27.6    -      -       -      +
     85B  GLY*     3.5    29.2    -      -       -      +
     86B  GLY      3.4     3.3    +      -       -      +
     88B  VAL*     1.3    78.8    -      -       -      +
     90B  PHE*     1.3    67.5    +      -       +      +
     92B  GLY      3.4     6.2    +      -       -      -
     93B  ILE*     3.5    11.9    +      -       +      +
    501B   CL      3.7     3.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 90 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  LEU*     3.8    20.9    -      -       +      -
     72B  TRP*     3.7    32.1    -      +       -      -
     76B  PHE*     4.3     9.0    -      +       -      -
     82B  GLY      4.3     5.6    -      -       -      -
     85B  GLY*     3.7    22.4    -      -       -      -
     86B  GLY      2.9    28.5    +      -       -      +
     87B  THR      4.4     0.4    -      -       -      +
     89B  ILE*     1.3    74.1    -      -       +      +
     91B  SER*     1.3    55.9    +      -       -      +
     92B  GLY      3.2     1.8    -      -       -      -
     93B  ILE*     3.3    22.9    +      -       +      +
     94B  SER*     2.6    37.7    +      -       -      -
    268B  TYR*     3.7    19.1    -      -       +      -
    269B  SER*     3.8    25.4    -      -       -      -
    271B  TRP*     5.0     0.2    -      +       -      -
    291B  THR      3.1    18.8    -      -       -      +
    292B  CYS      4.7     3.4    -      -       -      -
    293B  GLY*     4.2     1.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 91 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  ALA*     3.9     6.8    -      -       -      +
     40B  ILE*     3.6    28.6    -      -       -      +
     49B  ALA*     4.0    12.1    -      -       -      +
     52B  ILE*     4.2     1.2    -      -       -      +
     87B  THR      3.0    18.7    +      -       -      -
     88B  VAL*     2.9    13.6    +      -       -      -
     90B  PHE*     1.3    76.4    -      -       -      +
     92B  GLY*     1.3    58.1    +      -       -      +
     94B  SER*     3.4     1.7    +      -       -      -
     95B  ALA*     3.0    30.1    +      -       -      +
    290B  GLY      3.4    21.6    -      -       -      +
    291B  THR*     4.0     4.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 92 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52B  ILE*     3.7    22.9    -      -       -      -
     53B  LEU*     3.7    11.3    -      -       -      +
     56B  TYR*     3.7    15.0    -      -       -      -
     88B  VAL      3.1     5.9    +      -       -      -
     89B  ILE      3.4     0.2    +      -       -      -
     90B  PHE      3.2     0.2    -      -       -      -
     91B  SER*     1.3    80.6    +      -       -      +
     93B  ILE*     1.3    63.9    +      -       -      +
     96B  PHE*     3.3    28.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  TYR*     3.8     6.3    -      -       +      +
     72B  TRP*     3.3    48.2    -      -       +      +
     75B  LEU*     3.8    44.4    -      -       +      +
     76B  PHE*     4.0    16.4    -      -       +      +
     89B  ILE*     3.5    16.1    +      -       +      +
     90B  PHE*     3.3    32.4    +      -       +      +
     92B  GLY*     1.3    76.1    -      -       -      +
     94B  SER*     1.3    63.0    +      -       -      +
     96B  PHE*     3.5     2.4    +      -       -      +
     97B  ASP*     3.0    22.1    +      -       +      +
    293B  GLY*     4.6     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 94 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  PHE      2.6    23.7    +      -       -      -
     91B  SER      3.4     1.1    -      -       -      -
     92B  GLY      3.3     0.2    -      -       -      -
     93B  ILE*     1.3    76.0    -      -       -      +
     95B  ALA*     1.3    64.1    +      -       -      +
     97B  ASP*     3.2     4.0    +      -       -      +
     98B  ILE*     3.0    28.3    +      -       -      +
    289B  LEU      3.2    17.9    -      -       -      -
    290B  GLY      3.4    16.8    -      -       -      -
    291B  THR      3.3     7.6    -      -       -      -
    293B  GLY      2.8    22.8    +      -       -      -
    294B  GLY*     3.5    11.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 95 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  ILE      5.6     0.2    -      -       -      +
     24B  VAL*     3.6    16.3    -      -       +      +
     36B  GLY*     3.4    11.3    -      -       -      -
     37B  GLU      3.6    33.0    -      -       -      +
     38B  ALA*     3.7     5.2    -      -       +      +
     53B  LEU*     3.8    20.6    -      -       +      -
     91B  SER      3.0    13.1    +      -       -      +
     93B  ILE      3.4     0.2    -      -       -      -
     94B  SER*     1.3    79.8    -      -       -      +
     96B  PHE*     1.3    63.0    +      -       -      +
     98B  ILE*     3.4     1.2    +      -       -      -
     99B  ALA      3.2    16.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 96 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6B  ILE*     3.6    31.0    -      -       +      -
     24B  VAL*     3.6    24.7    -      -       +      -
     26B  VAL*     3.8    16.8    -      -       +      -
     53B  LEU*     3.5    41.5    -      -       +      -
     56B  TYR*     3.7    18.8    -      +       +      -
     57B  ALA*     4.1     3.8    -      -       -      -
     60B  LEU*     3.5    22.7    -      -       +      -
     75B  LEU*     4.8     4.9    -      -       +      -
     92B  GLY      3.3    21.8    +      -       -      +
     93B  ILE      3.5     3.7    +      -       -      +
     94B  SER      3.3     0.2    -      -       -      -
     95B  ALA*     1.3    75.1    -      -       -      +
     97B  ASP*     1.3    65.9    +      -       -      +
     99B  ALA*     3.1     5.4    +      -       -      +
    100B  PHE*     2.9    44.8    +      +       +      -
----------------------------------------------------------
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Residues in contact with ASP 97 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68B  THR*     4.1    11.4    -      -       -      +
     72B  TRP*     4.0     9.0    -      -       +      -
     93B  ILE      3.0    18.9    +      -       -      +
     94B  SER      3.5     4.5    -      -       -      +
     96B  PHE*     1.3    75.5    -      -       -      +
     98B  ILE*     1.3    62.7    +      -       -      +
    100B  PHE*     3.2    13.4    +      -       +      +
    101B  TRP*     3.0    37.9    +      -       -      -
    293B  GLY      4.0    10.3    -      -       -      +
    294B  GLY*     4.1     0.2    -      -       -      -
    295B  PHE      2.8    28.5    +      -       -      -
    296B  THR*     2.6    35.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 98 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  LEU      3.5    14.8    -      -       -      +
     36B  GLY*     3.8     6.1    -      -       -      -
     37B  GLU*     3.8    25.1    -      -       +      +
     94B  SER      3.0    16.5    +      -       -      +
     95B  ALA      3.7     5.8    -      -       -      +
     96B  PHE      3.2     0.2    -      -       -      -
     97B  ASP*     1.3    74.5    -      -       -      +
     99B  ALA*     1.3    62.4    +      -       -      +
    101B  TRP*     3.3     4.7    +      -       -      +
    102B  ASP*     3.0    20.6    +      -       -      +
    289B  LEU*     3.8    32.8    -      -       +      +
    290B  GLY      4.2     0.4    -      -       -      +
    294B  GLY*     4.2    10.8    -      -       -      -
    295B  PHE*     3.9    27.7    -      -       +      +
    321B  VAL*     4.9     2.0    -      -       +      -
    322B  ALA*     6.1     2.5    -      -       -      -
    325B  ALA*     4.0    16.6    -      -       +      -
    373B  ILE*     4.5     6.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 99 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  VAL*     4.4     2.5    -      -       +      -
     26B  VAL*     3.7    27.4    -      -       +      -
     34B  GLY*     3.5     8.3    -      -       -      +
     35B  LEU      3.4    27.3    +      -       -      +
     36B  GLY      3.8     3.4    -      -       -      +
     95B  ALA      3.2     7.0    +      -       -      +
     96B  PHE      3.1     8.2    +      -       -      +
     98B  ILE*     1.3    80.2    -      -       -      +
    100B  PHE*     1.3    58.1    +      -       -      +
    102B  ASP*     3.3     3.6    -      -       -      +
    103B  ILE*     3.0    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 100 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3B  ILE*     3.6    26.9    -      -       +      -
     26B  VAL*     4.1    20.2    -      -       +      -
     60B  LEU*     4.1    15.7    -      -       +      -
     65B  PRO*     3.6    30.0    -      -       +      +
     68B  THR*     3.6    17.5    -      -       +      -
     71B  ILE*     3.6    35.4    -      -       +      -
     75B  LEU*     5.8     0.2    -      -       +      -
     96B  PHE*     2.9    43.4    +      +       +      -
     97B  ASP*     3.2    12.5    +      -       +      +
     99B  ALA*     1.3    75.5    -      -       -      +
    101B  TRP*     1.3    60.1    +      -       -      +
    103B  ILE*     3.2     8.6    +      -       +      +
    104B  LYS*     2.9    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 101 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68B  THR*     3.9     9.9    -      -       +      +
     97B  ASP*     3.0    40.0    +      -       -      -
     98B  ILE      3.7     0.4    -      -       -      +
    100B  PHE*     1.3    72.5    -      -       -      +
    102B  ASP*     1.3    65.9    +      -       -      +
    104B  LYS*     3.2    33.7    +      -       +      +
    105B  GLY      2.9    20.1    +      -       -      -
    112B  VAL*     3.4    17.0    -      -       +      +
    115B  LEU*     3.6    39.6    -      -       +      +
    116B  LEU*     3.9    19.7    -      -       +      -
    295B  PHE*     3.4    36.1    -      +       +      +
    296B  THR*     3.0    30.6    +      -       -      -
    299B  LYS*     6.4     0.2    -      -       +      -
    115C  LEU      5.2     0.4    -      -       -      -
    117C  GLY*     5.7     0.2    -      -       -      -
   3403C  GOL      3.2    35.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 102 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  GLY*     3.3     7.8    -      -       -      -
     35B  LEU*     2.8    32.7    +      -       -      +
     98B  ILE      3.0    13.2    +      -       -      +
     99B  ALA      3.3    10.3    -      -       -      +
    100B  PHE      3.3     0.2    -      -       -      -
    101B  TRP*     1.3    76.2    -      -       -      +
    103B  ILE*     1.3    61.8    +      -       -      +
    105B  GLY      3.3     0.2    +      -       -      -
    106B  LYS*     3.0    42.8    +      -       -      +
    112B  VAL*     4.1     4.6    -      -       -      +
    372B  GLY*     3.3    11.8    -      -       -      -
    373B  ILE*     2.8    37.5    +      -       +      +
    374B  GLY      4.4     1.0    +      -       -      -
    375B  GLN      4.5     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 103 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  LEU*     3.9    17.0    -      -       +      -
     26B  VAL*     3.5    39.3    -      -       +      +
     28B  THR*     3.9    16.6    -      -       +      -
     32B  ILE*     4.0    14.5    -      -       +      +
     33B  TYR*     3.6     6.5    -      -       -      -
     34B  GLY      3.4    18.4    -      -       -      +
     65B  PRO*     3.8    31.4    -      -       +      -
     66B  PHE*     5.2     0.4    -      -       +      -
     99B  ALA      3.0    18.2    +      -       -      +
    100B  PHE*     3.2     8.0    +      -       -      +
    102B  ASP*     1.3    75.9    -      -       -      +
    104B  LYS*     1.3    57.9    +      -       -      +
    106B  LYS*     3.3     2.5    +      -       -      +
    107B  ALA*     2.8    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 104 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  PRO      3.8     8.1    -      -       -      +
     66B  PHE*     3.9    52.8    +      -       +      -
     68B  THR*     2.8    44.0    +      -       -      -
    100B  PHE      2.9    15.3    +      -       -      +
    101B  TRP*     3.2    45.3    +      -       +      +
    103B  ILE*     1.3    75.4    -      -       -      +
    105B  GLY*     1.3    62.9    +      -       -      +
    107B  ALA*     3.4     2.1    +      -       -      +
    108B  LEU*     3.0    29.1    +      -       -      +
    115B  LEU*     3.8    14.4    -      -       +      -
    114C  LYS      5.0     4.6    +      -       -      +
    115C  LEU      6.1     0.4    -      -       -      -
    117C  GLY*     4.4     3.8    -      -       -      +
   3403C  GOL      4.4     4.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 105 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101B  TRP      2.9    13.6    +      -       -      -
    102B  ASP      3.7     1.1    -      -       -      -
    104B  LYS*     1.3    76.9    -      -       -      +
    106B  LYS*     1.3    57.0    +      -       -      +
    108B  LEU      3.2     1.0    +      -       -      -
    109B  ASN*     2.9    25.3    +      -       -      -
    110B  LEU*     2.9    30.8    +      -       -      -
    112B  VAL*     4.9     1.8    -      -       -      -
    115B  LEU*     3.6    12.5    -      -       -      +
    371B  PRO*     4.0     0.2    -      -       -      +
    372B  GLY*     3.5     9.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 106 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  ILE*     3.6    21.9    -      -       +      +
     33B  TYR*     2.9    59.0    +      -       -      +
     35B  LEU*     5.4     0.2    -      -       -      +
    102B  ASP*     3.0    36.9    +      -       -      +
    105B  GLY*     1.3    73.1    -      -       -      +
    107B  ALA*     1.3    63.6    +      -       -      +
    108B  LEU      3.3     0.7    +      -       -      -
    109B  ASN*     3.3    11.3    +      -       -      +
    371B  PRO*     4.0    26.9    -      -       +      +
    372B  GLY      3.6     0.8    -      -       -      +
    375B  GLN      5.1     7.4    +      -       -      -
    376B  ASP*     4.9     2.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 107 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  LEU*     4.3     6.1    -      -       +      -
     32B  ILE*     3.9    24.1    -      -       +      +
     66B  PHE*     4.0    23.1    -      -       +      -
    103B  ILE      2.8    20.6    +      -       -      +
    104B  LYS      3.6     4.7    -      -       -      +
    105B  GLY      3.3     0.2    -      -       -      -
    106B  LYS*     1.3    71.8    -      -       -      +
    108B  LEU*     1.3    65.0    +      -       +      +
    109B  ASN*     3.8     0.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 108 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66B  PHE*     3.9    28.3    -      -       +      -
    104B  LYS      3.0    18.3    +      -       -      +
    105B  GLY      4.1     1.6    -      -       -      +
    107B  ALA*     1.3    83.9    -      -       +      +
    109B  ASN*     1.3    69.9    +      -       -      +
    110B  LEU*     3.4    19.7    +      -       +      +
    115B  LEU*     3.9    24.9    -      -       +      -
    108C  LEU*     4.4    28.9    -      -       +      +
    110C  LEU*     3.8    29.6    -      -       +      -
    115C  LEU*     4.4     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 109 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  GLY      2.9     5.5    +      -       -      -
    106B  LYS      3.3    10.4    +      -       -      +
    107B  ALA      3.4     0.6    -      -       -      -
    108B  LEU*     1.3    80.9    -      -       -      +
    110B  LEU*     1.3    65.1    +      -       -      +
    111B  PRO*     4.6     1.7    -      -       -      +
    371B  PRO*     3.4    27.2    -      -       -      +
----------------------------------------------------------
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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