Contacts of the helix formed by residues 39 - 62 (chain J) in PDB entry 5OA3


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 ASN 39 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6422    U      3.2    39.0    +      -       +      +
    6432    A      2.3    33.5    +      -       -      -
     32J  ILE*     3.9    12.8    -      -       -      +
     37J  LEU*     4.5     0.5    -      -       -      +
     38J  ARG*     1.3    89.5    +      -       +      +
     40J  LYS*     1.3    63.3    +      -       -      +
     41J  ARG*     3.1    22.0    -      -       -      +
     42J  GLU*     3.0    26.4    +      -       -      +
     43J  VAL      4.0     1.6    +      -       -      -
     34e  ARG*     4.3     7.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 40 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6412    A      3.2    20.6    -      -       -      +
    6422    U      3.2    10.0    +      -       -      +
     25J  LEU*     3.0    50.5    +      -       -      +
     28J  GLU*     3.4    36.7    +      -       +      +
     29J  LEU*     4.3     8.5    -      -       -      +
     32J  ILE*     3.7    17.6    -      -       +      +
     39J  ASN*     1.3    73.7    -      -       -      +
     41J  ARG*     1.3    62.4    +      -       -      +
     42J  GLU      3.2     0.2    -      -       -      -
     43J  VAL*     3.3     7.2    +      -       +      +
     44J  TRP*     3.0    47.7    +      -       +      +
     34e  ARG*     3.2    26.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 41 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5212    A      5.6     5.2    +      -       -      +
    5222    A      3.8    13.1    -      -       -      +
    6412    A      5.2     0.2    +      -       -      -
    6422    U      2.9    36.8    +      -       -      +
    6432    A      4.0    10.9    +      -       -      -
    6442    G      3.4    30.9    +      -       -      -
    6452    C      4.9     6.9    +      -       -      -
     13J  TYR*     3.4    51.4    +      -       +      +
     38J  ARG*     5.9     0.4    -      -       -      +
     39J  ASN*     3.0    17.1    -      -       -      +
     40J  LYS*     1.3    78.5    -      -       -      +
     42J  GLU*     1.3    55.0    +      -       -      +
     44J  TRP*     3.2    16.6    +      -       +      +
     45J  ARG*     2.8    34.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 42 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5222    A      3.8     9.9    +      -       -      -
     37J  LEU*     3.5    22.3    -      -       +      +
     38J  ARG*     2.9    47.4    +      -       -      +
     39J  ASN*     3.0    17.4    +      -       -      +
     41J  ARG*     1.3    78.9    -      -       -      +
     43J  VAL*     1.3    62.9    +      -       -      +
     45J  ARG*     3.0    38.6    +      -       -      +
     46J  VAL*     3.0    29.8    +      -       +      +
    109J  ARG*     4.9     1.6    -      -       -      +
    127J  ARG*     3.4    20.1    +      -       -      -
    146J  SER*     4.4     8.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 43 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28J  GLU*     4.1    32.1    -      -       +      +
     31J  LEU*     4.1    23.3    -      -       +      -
     32J  ILE*     3.9    22.9    -      -       +      -
     37J  LEU*     3.6    23.1    -      -       +      -
     39J  ASN      4.5     1.6    -      -       -      +
     40J  LYS*     3.3    11.9    +      -       -      +
     42J  GLU*     1.3    75.0    -      -       -      +
     44J  TRP*     1.3    62.8    +      -       +      +
     45J  ARG      3.3     0.2    +      -       -      -
     46J  VAL*     3.4     6.3    +      -       -      +
     47J  LYS*     2.9    36.9    +      -       +      +
    102J  ILE*     4.8     5.2    -      -       +      +
    106J  LEU*     5.7     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 44 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6412    A      4.4    27.4    -      -       -      -
    6422    U      5.0     0.7    -      -       -      -
     13J  TYR*     4.0    17.6    -      +       +      +
     14J  VAL      3.6    15.9    +      -       -      +
     15J  THR*     3.5    34.3    -      -       +      -
     16J  PRO*     3.5    29.5    -      -       +      +
     24J  ARG*     4.2    11.4    -      -       -      -
     28J  GLU*     3.3    32.9    +      -       -      -
     40J  LYS*     3.0    27.3    +      -       +      +
     41J  ARG*     3.2    21.3    +      -       +      +
     43J  VAL*     1.3    79.4    -      -       +      +
     45J  ARG*     1.3    56.8    +      -       -      +
     47J  LYS*     3.6    10.5    -      -       +      +
     48J  PHE*     2.9    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 45 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5212    A      2.5    47.2    +      -       -      -
    5222    A      3.2    28.3    +      -       -      -
     12J  THR*     3.4    37.7    -      -       +      +
     13J  TYR*     3.8     5.3    -      -       +      +
     41J  ARG*     2.8    19.6    +      -       +      +
     42J  GLU*     3.0    30.9    +      -       -      +
     44J  TRP*     1.3    74.4    -      -       -      +
     46J  VAL*     1.3    70.6    +      -       +      +
     48J  PHE*     3.1     4.3    +      -       -      +
     49J  THR*     2.9    31.7    +      -       +      +
    146J  SER*     3.6    28.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 46 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37J  LEU*     5.8     1.3    -      -       +      -
     42J  GLU*     3.0    17.9    +      -       +      +
     43J  VAL*     3.7     7.9    -      -       -      +
     45J  ARG*     1.3    79.5    -      -       +      +
     47J  LYS*     1.3    63.1    +      -       -      +
     49J  THR*     2.4    30.6    +      -       -      +
     50J  LEU*     3.0     7.6    +      -       -      +
    102J  ILE*     3.7    17.0    -      -       +      +
    105J  PHE*     3.9    22.4    -      -       +      -
    106J  LEU*     3.5    35.0    -      -       +      -
    109J  ARG*     5.5     6.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 47 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      12    U      4.0    26.9    +      -       -      -
     16J  PRO*     5.7     3.0    -      -       -      +
     24J  ARG*     4.7     9.9    -      -       -      +
     27J  GLN*     4.9    11.1    +      -       -      +
     28J  GLU*     3.4    25.0    +      -       +      +
     31J  LEU*     6.3     0.4    -      -       +      -
     43J  VAL*     2.9    26.3    +      -       +      +
     44J  TRP*     3.6    11.7    -      -       +      +
     46J  VAL*     1.3    77.7    -      -       -      +
     48J  PHE*     1.3    56.8    +      -       -      +
     50J  LEU*     3.5     8.8    +      -       +      +
     51J  ALA*     2.9    28.5    +      -       -      +
    102J  ILE*     3.4    28.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 48 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10J  ARG*     6.0     1.6    -      -       -      -
     11J  LYS      3.8    21.8    -      -       -      -
     12J  THR*     3.1    23.3    -      -       +      +
     13J  TYR*     4.1     6.3    -      -       -      -
     14J  VAL*     3.5    31.2    -      -       +      +
     44J  TRP      2.9    19.3    +      -       -      +
     45J  ARG      3.4     3.1    -      -       -      +
     47J  LYS*     1.3    74.1    -      -       -      +
     49J  THR*     1.3    68.2    +      -       +      +
     51J  ALA*     3.1    10.7    +      -       +      +
     52J  LYS*     2.9    64.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 49 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12J  THR*     5.2     4.5    -      -       +      +
     45J  ARG*     2.9    30.6    +      -       +      +
     46J  VAL*     2.4    31.7    +      -       -      +
     48J  PHE*     1.3    85.1    -      -       +      +
     50J  LEU*     1.3    65.4    +      -       -      +
     52J  LYS*     3.3    19.1    +      -       -      +
     53J  ILE*     3.4    18.7    +      -       -      +
    105J  PHE*     4.5    13.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 50 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46J  VAL      3.0     7.1    +      -       -      +
     47J  LYS*     3.7    14.1    -      -       +      +
     49J  THR*     1.3    81.7    +      -       -      +
     51J  ALA*     1.3    62.1    +      -       +      +
     53J  ILE*     3.2    17.1    +      -       +      +
     54J  ARG*     2.9    48.5    +      -       +      +
    100J  LEU*     3.7    26.0    -      -       +      +
    101J  LYS*     3.7    27.4    -      -       -      +
    102J  ILE*     4.4    11.2    -      -       +      +
    105J  PHE*     3.7    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 51 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      12    U      3.7    31.8    +      -       -      +
     47J  LYS      2.9    18.0    +      -       -      +
     48J  PHE*     3.1    14.6    +      -       +      +
     50J  LEU*     1.3    80.0    -      -       +      +
     52J  LYS*     1.3    66.6    +      -       -      +
     54J  ARG*     3.3     7.2    +      -       -      +
     55J  LYS*     2.9    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 52 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8162    A      5.7     2.2    -      -       -      +
    8172    G      5.6     4.8    +      -       -      +
     10J  ARG*     4.4    26.6    -      -       -      +
     12J  THR*     6.2     0.6    -      -       -      +
     48J  PHE*     2.9    60.8    +      -       +      +
     49J  THR*     3.6    16.5    -      -       -      +
     51J  ALA*     1.3    73.6    -      -       -      +
     53J  ILE*     1.3    66.0    +      -       +      +
     55J  LYS*     3.1    13.6    +      -       -      +
     56J  ALA*     2.9    23.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 53 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49J  THR*     3.4    16.6    -      -       -      +
     50J  LEU*     3.2     8.3    -      -       +      +
     52J  LYS*     1.3    76.3    -      -       +      +
     54J  ARG*     1.3    59.2    +      -       +      +
     56J  ALA*     3.1     9.3    +      -       -      +
     57J  ALA*     2.9    26.9    +      -       -      +
     77J  LEU*     4.0    18.0    -      -       +      +
     80J  ARG*     5.8     4.3    -      -       -      +
     81J  LEU*     3.7    33.0    -      -       +      -
     97J  ILE*     3.8    14.8    -      -       +      -
    100J  LEU*     5.9     1.1    -      -       +      -
    105J  PHE*     3.5    35.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 54 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      12    U      4.0    16.3    +      -       -      +
    199C  PRO*     4.7     2.4    -      -       -      +
    200C  ARG      2.6    29.5    +      -       -      -
    201C  GLY*     3.3    22.8    +      -       -      -
    202C  THR*     3.3    23.8    -      -       -      +
     50J  LEU*     2.9    44.1    +      -       +      +
     51J  ALA*     3.3     8.7    +      -       -      +
     53J  ILE*     1.3    78.4    -      -       +      +
     55J  LYS*     1.3    57.4    +      -       -      +
     57J  ALA*     3.8     1.3    -      -       -      +
     58J  ARG*     2.9    39.1    +      -       -      +
     97J  ILE*     4.9     6.3    -      -       +      +
     98J  LEU*     3.9    40.6    +      -       +      +
    100J  LEU*     4.6     9.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 55 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      12    U      5.8     2.4    +      -       -      +
    4172    C      6.0     1.6    -      -       -      +
    8162    A      5.9     4.8    -      -       -      -
     51J  ALA      2.9    13.8    +      -       -      +
     52J  LYS*     3.1    14.6    +      -       -      +
     54J  ARG*     1.3    74.3    -      -       -      +
     56J  ALA*     1.3    66.3    +      -       -      +
     58J  ARG*     3.3    32.1    +      -       -      +
     59J  GLU*     3.0    50.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 56 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8172    G      4.4    17.3    -      -       -      +
     52J  LYS      2.9    12.5    +      -       -      +
     53J  ILE*     3.4    11.9    -      -       -      +
     55J  LYS*     1.3    79.1    -      -       -      +
     57J  ALA*     1.3    57.3    +      -       -      +
     59J  GLU*     3.2     6.7    +      -       -      +
     60J  LEU*     2.9    35.1    +      -       +      +
     73J  GLU*     5.5     6.7    -      -       -      +
     77J  LEU*     4.7    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 57 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53J  ILE      2.9    15.8    +      -       -      +
     54J  ARG      3.8     4.0    -      -       -      +
     56J  ALA*     1.3    72.7    -      -       -      +
     58J  ARG*     1.3    66.9    +      -       -      +
     60J  LEU*     3.0     9.6    +      -       -      +
     61J  LEU*     3.0    29.5    +      -       +      +
     77J  LEU*     4.5     7.4    -      -       +      +
     94J  LEU*     4.2    18.4    -      -       +      -
     97J  ILE*     4.2    14.1    -      -       +      -
     98J  LEU*     3.8    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 58 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      12    U      4.8    14.1    +      -       -      -
      22    A      4.9     7.1    +      -       -      -
    4182    A      5.9     0.8    +      -       -      -
    170C  TRP*     4.8     9.9    -      -       +      -
    199C  PRO*     3.6    30.9    -      -       +      +
    202C  THR*     4.3    19.8    -      -       -      +
    223C  TYR*     4.3    12.7    +      -       -      -
     54J  ARG*     2.9    33.6    +      -       -      +
     55J  LYS*     3.6    31.0    -      -       -      +
     57J  ALA*     1.3    76.8    -      -       -      +
     59J  GLU*     1.3    68.2    +      -       +      +
     60J  LEU      3.5     0.5    +      -       -      -
     61J  LEU*     3.5    10.8    +      -       -      +
     62J  THR*     3.4    21.0    +      -       +      +
     98J  LEU*     4.6    11.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 59 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    4192    G      6.1     0.9    -      -       -      -
     55J  LYS*     3.0    48.3    +      -       -      +
     56J  ALA*     3.5     5.2    -      -       -      +
     58J  ARG*     1.3    85.4    +      -       +      +
     60J  LEU*     1.3    64.6    +      -       -      +
     62J  THR*     3.4    19.9    +      -       +      +
     63J  LEU*     4.2     9.5    -      -       -      +
     69J  ARG*     4.9     5.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 60 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56J  ALA*     2.9    19.6    +      -       +      +
     57J  ALA*     3.0    11.9    +      -       -      +
     59J  GLU*     1.3    81.2    -      -       -      +
     61J  LEU*     1.3    60.7    +      -       -      +
     62J  THR      3.1     2.5    -      -       -      -
     63J  LEU*     3.0    32.5    +      -       +      +
     69J  ARG*     4.3    15.5    -      -       +      +
     70J  ARG*     3.7    21.4    -      -       +      +
     73J  GLU*     4.0    32.5    -      -       +      +
     74J  GLY*     3.8    34.3    -      -       -      +
     77J  LEU*     5.1     7.4    -      -       +      -
     94J  LEU*     4.6    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 61 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170C  TRP*     4.6    22.9    -      -       +      -
    172C  ASN*     5.1     8.7    -      -       -      +
     57J  ALA      3.0    17.0    +      -       -      +
     58J  ARG*     3.5     6.4    +      -       -      +
     60J  LEU*     1.3    76.0    -      -       -      +
     62J  THR*     1.3    61.9    +      -       -      +
     63J  LEU      3.2     7.5    -      -       -      +
     70J  ARG*     3.3    28.1    +      -       -      +
     94J  LEU*     3.6    27.6    -      -       +      -
     95J  ASP*     3.8    28.9    -      -       +      +
     98J  LEU*     4.3    23.8    -      -       +      -
     97W  ARG*     5.1     4.7    +      -       -      -
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Residues in contact with THR 62 (chain J). Click here for Legend to table.
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                                  Specific contacts
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     Residue       Dist    Surf   HB    Arom    Phob    DC
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    170C  TRP*     5.0    10.3    -      -       +      -
     58J  ARG*     3.4    19.1    -      -       +      +
     59J  GLU*     3.4    21.1    +      -       +      +
     61J  LEU*     1.3    78.4    -      -       -      +
     63J  LEU*     1.3    65.9    +      -       -      +
     64J  ASP      4.0     0.5    +      -       -      -
     87W  GLU*     3.8    28.8    +      -       -      +
     97W  ARG*     4.3    25.0    +      -       -      +
    117W  ARG*     5.3     6.1    +      -       -      -
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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
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  Atomic class           I  II  III   IV   V   VI  VII  VIII
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   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
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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