Contacts of the helix formed by residues 86 - 114 (chain D) in PDB entry 2ACZ


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 PRO 86 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84D  VAL*     3.6     9.3    -      -       +      +
     85D  LYS*     1.3    91.4    -      -       +      +
     87D  LEU*     1.3    66.1    +      -       -      +
     88D  ALA*     3.4     1.8    -      -       +      +
     89D  LEU*     3.2    20.5    +      -       +      +
     90D  ARG*     3.2    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 87 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85D  LYS      3.1     5.6    +      -       -      +
     86D  PRO*     1.3    72.2    -      -       -      +
     88D  ALA*     1.3    64.7    +      -       -      +
     90D  ARG*     3.4    33.8    +      -       -      +
     91D  LEU*     3.1    45.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 88 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86D  PRO*     3.4     1.9    -      -       +      -
     87D  LEU*     1.3    80.3    -      -       -      +
     89D  LEU*     1.3    63.7    +      -       -      +
     91D  LEU*     3.7     6.2    +      -       -      +
     92D  MET*     3.4    19.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 89 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84D  VAL*     3.7    18.4    -      -       +      -
     86D  PRO*     3.2    24.5    +      -       +      +
     88D  ALA*     1.3    78.8    -      -       -      +
     90D  ARG*     1.3    62.9    +      -       -      +
     92D  MET*     3.3    21.1    +      -       +      +
     93D  LEU*     3.1    35.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 90 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4D  ASN*     5.4     2.4    +      -       -      -
      6D  SER*     4.7     9.1    +      -       -      -
     77D  TRP*     5.5     0.6    -      -       -      +
     80D  LEU*     3.2    49.4    -      -       +      -
     81D  THR*     4.0    10.3    +      -       -      +
     84D  VAL*     3.3    28.2    +      -       +      +
     85D  LYS*     3.9     6.9    +      -       -      +
     86D  PRO      3.2     3.7    +      -       -      +
     87D  LEU*     3.5    39.7    -      -       -      +
     88D  ALA      3.3     0.4    -      -       -      -
     89D  LEU*     1.3    77.0    -      -       -      +
     91D  LEU*     1.3    74.1    +      -       -      +
     93D  LEU*     2.8     7.8    +      -       -      +
     94D  GLN*     2.8    37.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 91 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6D  SER*     4.5     8.3    -      -       -      -
     87D  LEU*     3.1    41.7    +      -       +      +
     88D  ALA*     4.2     5.8    -      -       -      +
     90D  ARG*     1.3    83.1    -      -       -      +
     92D  MET*     1.3    57.2    +      -       -      +
     94D  GLN*     3.4    23.5    +      -       -      +
     95D  LEU*     2.9    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 92 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88D  ALA      3.4    10.9    +      -       -      +
     89D  LEU*     3.3    21.9    +      -       +      +
     90D  ARG      3.1     0.4    -      -       -      -
     91D  LEU*     1.3    78.0    -      -       -      +
     93D  LEU*     1.3    72.2    +      -       +      +
     95D  LEU*     3.3    11.1    +      -       +      +
     96D  VAL*     2.9    56.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 93 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80D  LEU*     3.6    34.3    -      -       +      -
     84D  VAL*     4.2    11.9    -      -       +      -
     89D  LEU*     3.1    35.5    +      -       +      +
     90D  ARG      2.8     8.5    +      -       -      +
     92D  MET*     1.3    88.5    -      -       +      +
     94D  GLN*     1.3    66.2    +      -       -      +
     96D  VAL*     3.1     8.2    +      -       +      +
     97D  ILE*     2.8    31.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 94 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6D  SER*     2.8    35.4    -      -       -      +
     73D  TRP*     6.2     1.6    -      -       +      +
     76D  MET      5.9     0.2    -      -       -      -
     77D  TRP*     3.1    32.6    +      -       +      -
     80D  LEU*     3.6    19.7    -      -       +      +
     81D  THR*     4.7     0.2    +      -       -      -
     90D  ARG*     2.8    37.3    +      -       -      +
     91D  LEU*     3.7    23.1    -      -       -      +
     93D  LEU*     1.3    72.0    -      -       -      +
     95D  LEU*     1.3    58.5    +      -       -      +
     97D  ILE*     3.6     5.6    -      -       +      +
     98D  VAL*     2.8    44.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 95 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  LEU      2.9    14.5    +      -       -      +
     92D  MET*     3.4    14.8    -      -       +      +
     93D  LEU      3.1     0.2    -      -       -      -
     94D  GLN*     1.3    77.4    -      -       -      +
     96D  VAL*     1.3    61.6    +      -       +      +
     98D  VAL*     4.7     4.9    -      -       +      -
     99D  VAL*     2.8    48.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 96 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92D  MET*     2.9    49.2    +      -       +      +
     93D  LEU*     3.6     9.0    -      -       +      +
     95D  LEU*     1.3    77.4    -      -       +      +
     97D  ILE*     1.3    59.4    +      -       +      +
     99D  VAL*     3.3     5.8    +      -       -      +
    100D  ALA*     2.9    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 97 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  PHE*     4.0    24.4    -      -       +      -
     73D  TRP*     5.2     3.1    -      -       -      +
     76D  MET*     3.7    49.1    -      -       +      -
     80D  LEU*     3.9    25.1    -      -       +      -
     93D  LEU*     2.8    17.8    +      -       +      +
     94D  GLN*     3.6     6.3    -      -       -      +
     96D  VAL*     1.3    78.8    -      -       +      +
     98D  VAL*     1.3    60.0    +      -       +      +
    100D  ALA*     3.0    10.1    -      -       -      +
    101D  LEU*     2.9    41.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 98 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69D  LEU*     5.4     0.2    -      -       +      -
     73D  TRP*     4.1    54.5    -      -       +      +
     94D  GLN*     2.8    32.2    +      -       +      +
     95D  LEU*     4.1     6.1    -      -       +      +
     97D  ILE*     1.3    72.7    -      -       +      +
     99D  VAL*     1.3    69.7    +      -       +      +
    100D  ALA      3.0     1.1    -      -       -      -
    101D  LEU*     3.2     6.9    +      -       -      +
    102D  VAL*     2.9    33.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 99 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95D  LEU*     2.8    43.3    +      -       +      +
     96D  VAL*     3.7     5.2    -      -       -      +
     98D  VAL*     1.3    78.1    -      -       +      +
    100D  ALA*     1.3    62.6    +      -       -      +
    102D  VAL*     3.8     6.6    -      -       +      +
    103D  VAL*     3.1    35.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 100 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  PHE*     4.0    19.1    -      -       +      -
     96D  VAL*     2.9    16.7    +      -       +      +
     97D  ILE*     3.0    13.9    -      -       -      +
     98D  VAL      3.0     0.4    -      -       -      -
     99D  VAL*     1.3    77.8    -      -       -      +
    101D  LEU*     1.3    54.6    +      -       -      +
    103D  VAL*     3.2     7.8    +      -       -      +
    104D  TYR*     2.9    43.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 101 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  PHE*     3.5    28.9    -      -       +      -
     65D  LEU      5.2     0.2    -      -       -      +
     68D  ILE*     4.4     6.1    -      -       +      -
     69D  LEU*     3.5    34.0    +      -       +      +
     72D  ALA*     3.8    13.0    -      -       +      -
     73D  TRP*     3.4    38.4    -      -       +      +
     97D  ILE*     2.9    25.1    +      -       +      +
     98D  VAL*     3.7     9.2    -      -       -      +
    100D  ALA*     1.3    73.1    -      -       -      +
    102D  VAL*     1.3    68.4    +      -       -      +
    104D  TYR*     3.2    27.7    +      -       +      +
    105D  VAL*     3.3    15.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 102 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69D  LEU*     4.8    17.7    -      -       +      -
     73D  TRP*     6.0     0.9    -      -       +      -
     98D  VAL*     2.9    31.6    +      -       +      +
     99D  VAL*     3.8     7.4    -      -       +      +
    101D  LEU*     1.3    74.9    -      -       -      +
    103D  VAL*     1.3    68.8    +      -       +      +
    105D  VAL*     2.9    19.9    +      -       +      +
    106D  ILE*     3.0    37.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 103 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99D  VAL*     3.1    30.0    +      -       +      +
    100D  ALA*     3.2     7.2    +      -       -      +
    102D  VAL*     1.3    83.3    -      -       +      +
    104D  TYR*     1.3    67.0    +      -       +      +
    106D  ILE*     4.4     9.4    -      -       +      +
    107D  TYR*     2.8    33.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 104 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  PHE*     3.1    39.0    +      +       -      -
     39C  VAL*     4.0     5.4    +      -       -      -
     41C  VAL*     3.7    18.2    -      -       +      -
     42C  GLY*     3.4    28.2    +      -       -      -
     45C  LEU*     3.4    32.2    -      -       +      +
     65D  LEU*     3.9     9.9    -      -       +      +
     68D  ILE*     5.2     5.4    -      -       +      -
    100D  ALA*     2.9    24.0    +      -       +      +
    101D  LEU*     3.4    35.0    -      -       +      +
    102D  VAL      3.1     0.4    +      -       -      -
    103D  VAL*     1.3    79.7    -      -       +      +
    105D  VAL*     1.3    59.4    +      -       +      +
    107D  TYR*     3.8     1.2    -      -       -      -
    108D  GLY*     2.9    24.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 105 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62D  LEU*     4.3     2.6    -      -       +      +
     65D  LEU*     3.4    44.2    -      -       +      +
     66D  PHE*     3.8    17.5    -      -       +      +
     69D  LEU*     4.4    13.2    -      -       +      -
    101D  LEU      3.7    11.9    -      -       -      +
    102D  VAL*     2.9     8.3    +      -       +      +
    104D  TYR*     1.3    80.6    -      -       +      +
    106D  ILE*     1.3    61.0    +      -       +      +
    108D  GLY*     2.9    14.9    +      -       -      -
    109D  PHE*     3.0    37.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 106 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102D  VAL*     3.0    41.7    +      -       +      +
    103D  VAL*     4.0     9.0    -      -       +      +
    105D  VAL*     1.3    77.0    -      -       +      +
    107D  TYR*     1.3    67.3    +      -       -      +
    109D  PHE*     3.1    13.8    +      -       +      +
    110D  VAL*     3.0    28.9    +      -       +      +
    113D  TRP*     5.2     0.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 107 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  LEU*     3.3    42.6    +      -       +      -
     46C  TRP*     4.3     8.9    +      +       -      -
     49C  GLY*     3.2    24.8    -      -       -      -
    103D  VAL*     2.8    30.6    +      -       +      +
    104D  TYR*     3.9     1.3    -      -       -      +
    106D  ILE*     1.3    76.1    -      -       -      +
    108D  GLY*     1.3    58.1    +      -       -      +
    110D  VAL*     3.2    16.6    +      -       +      -
    111D  VAL*     2.8    49.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 108 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  LEU*     4.9     7.2    -      -       -      -
     61D  THR*     6.1     0.4    -      -       -      -
     62D  LEU*     3.5     7.2    -      -       -      -
     65D  LEU*     3.6    17.5    -      -       -      -
    104D  TYR      2.9    16.4    +      -       -      -
    105D  VAL      2.9     6.6    +      -       -      -
    107D  TYR*     1.3    79.0    -      -       -      +
    109D  PHE*     1.3    62.5    +      -       -      +
    111D  VAL*     3.2     4.5    +      -       -      +
    112D  VAL*     3.0    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 109 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62D  LEU*     3.5    35.9    -      -       +      +
    105D  VAL*     3.0    52.7    +      -       +      -
    106D  ILE*     3.1    12.1    +      -       +      +
    108D  GLY*     1.3    73.9    -      -       -      +
    110D  VAL*     1.3    64.7    +      -       -      +
    112D  VAL*     3.1     1.8    +      -       -      +
    113D  TRP*     2.9    56.3    +      +       +      -
----------------------------------------------------------
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Residues in contact with VAL 110 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106D  ILE*     3.0    21.6    +      -       +      +
    107D  TYR*     3.6    22.2    -      -       +      +
    109D  PHE*     1.3    80.3    -      -       -      +
    111D  VAL*     1.3    62.3    +      -       -      +
    113D  TRP*     3.4    41.5    +      -       +      +
    114D  GLY*     3.5     9.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 111 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  LEU*     4.9     3.4    -      -       +      +
     48C  LEU*     4.4    20.4    -      -       +      +
     49C  GLY*     4.0     8.5    -      -       -      +
     52C  LEU*     3.9    26.7    -      -       +      -
    107D  TYR*     2.8    61.9    +      -       +      +
    108D  GLY*     3.6     6.3    -      -       -      +
    110D  VAL*     1.3    73.5    -      -       +      +
    112D  VAL*     1.3    66.9    +      -       +      +
    114D  GLY*     3.4     6.1    +      -       -      -
    115D  VAL*     3.2    19.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 112 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48C  LEU*     6.4     0.9    -      -       +      -
     52C  LEU*     6.0     0.7    -      -       -      -
     52D  PHE*     5.4    10.3    -      -       +      -
     58D  LYS*     3.4    53.7    +      -       +      -
     61D  THR*     4.7    13.0    -      -       +      -
     62D  LEU*     4.3    24.2    -      -       +      -
    108D  GLY      3.0    18.7    +      -       -      +
    109D  PHE*     3.7     4.9    -      -       -      +
    111D  VAL*     1.3    79.5    -      -       +      +
    113D  TRP*     1.3    66.1    +      -       +      +
    114D  GLY      3.0     4.5    -      -       -      -
    115D  VAL*     3.0    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 113 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58D  LYS*     4.5     7.5    +      -       -      +
    106D  ILE*     6.3     0.7    -      -       +      -
    109D  PHE*     2.9    48.7    +      +       +      -
    110D  VAL*     3.4    44.9    +      -       +      +
    112D  VAL*     1.3    77.3    -      -       +      +
    114D  GLY*     1.3    67.7    +      -       -      +
    115D  VAL      3.1     6.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 114 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52C  LEU      5.2     2.4    -      -       -      +
    110D  VAL      3.5     4.9    +      -       -      -
    111D  VAL      3.4     6.6    +      -       -      -
    112D  VAL      3.0     1.6    -      -       -      -
    113D  TRP*     1.3    88.9    -      -       -      +
    115D  VAL*     1.3    65.8    +      -       -      +
----------------------------------------------------------
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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