Contacts of the helix formed by residues 69 - 92 (chain F) in PDB entry 6JBQ


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 ALA 69 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7F  ASP*     4.7    12.6    -      -       -      +
     64F  PHE*     3.4    14.2    -      -       -      -
     68F  SER*     1.3    80.1    -      -       -      +
     70F  PHE*     1.3    64.6    +      -       -      +
     71F  TYR*     3.3    10.8    -      -       +      +
     72F  THR*     3.5    16.2    -      -       +      +
     73F  TRP      3.9     0.9    +      -       -      -
     28H    A      3.9    13.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 70 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7F  ASP*     4.2    21.2    +      -       +      +
     11F  VAL*     5.3     7.6    -      -       +      -
     22F  PHE*     3.6    28.5    -      +       -      -
     25F  LEU*     3.7    28.5    -      -       +      -
     29F  TYR*     4.2    20.2    -      +       +      +
     57F  ALA*     4.9     0.4    -      -       +      -
     61F  LEU*     3.7    17.9    -      -       +      -
     64F  PHE*     4.3     9.5    -      +       +      -
     69F  ALA*     1.3    75.8    -      -       -      +
     71F  TYR*     1.3    59.2    +      -       -      +
     72F  THR      3.5     0.2    -      -       -      -
     73F  TRP*     3.4    38.9    +      +       -      +
     74F  LEU*     2.9    55.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 71 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29F  TYR*     3.6    35.7    +      +       -      +
     32F  LYS*     3.8    41.3    +      -       +      +
     33F  VAL*     6.2     2.7    -      -       +      -
     69F  ALA*     3.3     7.6    -      -       +      +
     70F  PHE*     1.3    79.1    -      -       -      +
     72F  THR*     1.3    58.5    +      -       -      +
     74F  LEU*     3.5     6.9    +      -       +      +
     75F  TYR*     2.9    45.9    +      +       +      +
     29H    A      3.9    50.7    -      +       +      +
     30H    A      5.2     3.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 72 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68F  SER*     3.8    11.4    -      -       -      -
     69F  ALA*     3.5    16.7    -      -       +      +
     71F  TYR*     1.3    76.1    -      -       -      +
     73F  TRP*     1.3    62.4    +      -       -      +
     75F  TYR*     3.5     1.4    -      -       -      +
     76F  ARG*     2.9    30.0    +      -       -      +
     26H    C      4.1    17.4    -      -       -      +
     27H    A      5.5     0.4    -      -       -      -
     28H    A      3.6    36.8    +      -       -      +
     29H    A      3.1    40.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 73 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57F  ALA*     3.2    42.4    -      -       +      -
     60F  ALA      3.3    26.5    -      -       -      -
     61F  LEU*     3.6    19.3    -      -       +      -
     63F  SER*     5.8     0.9    -      -       -      -
     64F  PHE*     3.9    38.9    -      +       +      +
     69F  ALA      4.1     1.8    -      -       -      +
     70F  PHE*     3.4    32.9    +      +       -      +
     71F  TYR      3.3     0.2    -      -       -      -
     72F  THR*     1.3    83.0    -      -       -      +
     74F  LEU*     1.3    56.2    +      -       -      +
     76F  ARG*     3.4     4.4    +      -       -      +
     77F  ILE*     3.0    45.8    +      -       +      +
     25H    T      3.6    50.2    +      +       +      +
     26H    C      4.2    19.7    -      +       -      +
----------------------------------------------------------
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Residues in contact with LEU 74 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22F  PHE*     5.8     1.1    -      -       +      -
     29F  TYR*     3.9    21.3    -      -       +      -
     33F  VAL*     3.8    21.1    -      -       +      -
     53F  ALA*     4.8     2.5    -      -       +      +
     54F  PHE*     3.7    32.1    -      -       +      -
     57F  ALA*     4.0    27.1    -      -       +      -
     70F  PHE*     2.9    41.8    +      -       +      +
     71F  TYR*     3.9     7.6    -      -       +      +
     73F  TRP*     1.3    73.3    -      -       -      +
     75F  TYR*     1.3    59.8    +      -       -      +
     77F  ILE*     3.8     8.7    -      -       +      +
     78F  ALA*     2.9    31.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 75 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477C  GLU*     5.5     6.4    +      -       -      +
     36F  LEU*     3.5    39.6    -      -       +      +
     39F  ARG*     5.1     3.6    +      -       -      -
     40F  TYR*     5.6     2.4    +      -       -      -
     71F  TYR*     2.9    35.2    +      +       +      +
     72F  THR      3.5     5.8    -      -       -      +
     74F  LEU*     1.3    76.1    -      -       -      +
     76F  ARG*     1.3    58.2    +      -       -      +
     78F  ALA*     3.3     1.6    +      -       -      +
     79F  VAL*     3.0    51.1    +      -       +      +
     29H    A      3.4    77.0    +      +       +      +
     30H    A      5.3     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 76 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481C  LEU*     5.5     8.9    -      -       -      +
     72F  THR      2.9    17.2    +      -       -      +
     73F  TRP      3.9     3.1    -      -       -      +
     75F  TYR*     1.3    77.8    -      -       -      +
     77F  ILE*     1.3    57.1    +      -       -      +
     79F  VAL*     3.5    27.1    +      -       -      +
     80F  ASN*     2.8    60.4    +      -       -      +
     83F  LYS*     4.9     6.3    -      -       -      +
     25G    C      5.9     2.6    +      -       -      -
     25H    T      3.4    31.0    -      -       +      +
     26H    C      3.7    17.0    +      -       -      +
     28H    A      5.6     2.0    -      -       -      +
     29H    A      4.1    25.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 77 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53F  ALA*     3.5    33.4    -      -       +      +
     56F  LYS*     5.1     4.7    -      -       +      -
     57F  ALA*     3.8    26.7    -      -       +      +
     73F  TRP*     3.0    51.8    +      -       +      +
     74F  LEU*     3.8     7.4    -      -       +      +
     76F  ARG*     1.3    76.8    -      -       -      +
     78F  ALA*     1.3    56.9    +      -       -      +
     80F  ASN*     3.8     1.9    -      -       -      +
     81F  THR*     2.8    35.2    +      -       +      +
     25H    T      3.6    37.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 78 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33F  VAL*     3.9    15.9    -      -       +      -
     36F  LEU*     3.8    14.6    -      -       +      -
     37F  VAL*     3.7    25.4    -      -       +      +
     53F  ALA*     4.3     5.4    -      -       +      -
     74F  LEU*     2.9    19.0    +      -       +      +
     75F  TYR      3.7     3.8    -      -       -      +
     77F  ILE*     1.3    78.3    -      -       -      +
     79F  VAL*     1.3    57.5    +      -       -      +
     81F  THR*     2.8    19.2    +      -       -      -
     82F  ALA*     2.9    19.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 79 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36F  LEU*     4.1    10.8    -      -       +      -
     40F  TYR*     3.7    32.8    -      -       +      +
     75F  TYR*     3.0    40.8    +      -       +      +
     76F  ARG*     3.8    22.9    -      -       -      +
     78F  ALA*     1.3    74.7    -      -       -      +
     80F  ASN*     1.3    58.8    +      -       -      +
     82F  ALA*     3.3     5.5    +      -       -      +
     83F  LYS*     2.9    50.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 80 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56F  LYS*     6.1     1.1    -      -       -      +
     76F  ARG*     2.8    45.4    +      -       -      +
     77F  ILE*     3.8     3.6    -      -       -      +
     79F  VAL*     1.3    77.4    -      -       -      +
     81F  THR*     1.3    58.1    +      -       +      +
     83F  LYS*     3.4     2.4    +      -       -      +
     84F  ASN*     2.9    36.1    +      -       -      +
     25G    C      3.0    41.9    +      -       -      +
     24H    G      4.1    12.6    -      -       +      +
     25H    T      2.4    35.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 81 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  VAL*     5.2     0.7    -      -       -      +
     49F  VAL*     3.4    24.5    -      -       -      +
     52F  GLU*     4.8     4.7    -      -       +      -
     53F  ALA*     3.4    27.2    -      -       +      +
     56F  LYS*     3.7    32.1    -      -       -      +
     77F  ILE*     2.8    23.3    +      -       +      +
     78F  ALA*     2.8    18.0    +      -       -      -
     80F  ASN*     1.3    72.1    -      -       +      +
     82F  ALA*     1.3    58.5    +      -       -      +
     84F  ASN*     3.7     7.3    -      -       +      +
     85F  TYR*     2.9    23.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 82 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  VAL*     3.8    20.2    -      -       +      -
     40F  TYR*     4.0    24.5    -      -       +      -
     41F  VAL*     3.9    15.9    -      -       +      +
     49F  VAL*     4.1     4.2    -      -       -      +
     78F  ALA      2.9    18.7    +      -       -      +
     79F  VAL      3.6     4.3    -      -       -      +
     80F  ASN      3.3     0.2    -      -       -      -
     81F  THR*     1.3    77.6    +      -       -      +
     83F  LYS*     1.3    58.1    +      -       -      +
     85F  TYR*     3.4     2.8    +      -       -      +
     86F  LEU*     2.9    33.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 83 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40F  TYR*     4.5    18.6    +      -       +      -
     76F  ARG*     4.9     7.0    -      -       -      +
     79F  VAL*     2.9    42.4    +      -       +      +
     80F  ASN*     3.9     1.1    -      -       -      +
     82F  ALA*     1.3    74.1    -      -       +      +
     84F  ASN*     1.3    61.1    +      -       -      +
     86F  LEU*     3.3    15.0    +      -       +      +
     87F  VAL*     2.9    34.4    +      -       +      +
     24G    T      4.0    11.2    +      -       -      +
     25G    C      3.1    75.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 84 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56F  LYS*     4.3    14.1    -      -       -      +
     80F  ASN*     2.9    25.6    +      -       -      +
     81F  THR*     3.7     7.8    -      -       -      +
     82F  ALA      3.3     0.2    -      -       -      -
     83F  LYS*     1.3    76.6    -      -       -      +
     85F  TYR*     1.3    57.3    +      -       -      +
     87F  VAL*     3.3     9.7    +      -       -      +
     88F  ALA*     2.9    29.3    +      -       -      +
     25G    C      3.2    23.4    +      -       -      +
     26G    A      4.0     3.8    +      -       -      -
     22H    T      4.4    14.3    -      -       +      +
     23H    T      3.7    16.6    +      -       -      +
     24H    G      3.6     9.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 85 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270D  ARG*     5.3     4.5    +      -       -      -
     41F  VAL*     3.6    28.3    -      -       +      -
     42F  PRO*     4.7     3.1    -      -       +      -
     45F  ASP*     2.5    45.7    +      -       +      +
     48F  ASP*     6.4     2.2    -      -       +      -
     49F  VAL*     4.1    19.7    -      -       +      -
     81F  THR      2.9    18.0    +      -       -      +
     82F  ALA      3.7     3.1    -      -       -      +
     84F  ASN*     1.3    73.2    -      -       -      +
     86F  LEU*     1.3    60.7    +      -       -      +
     88F  ALA*     3.4     9.1    +      -       +      -
     89F  GLN*     2.9    56.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 86 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40F  TYR*     4.0    31.9    -      -       +      +
     41F  VAL*     4.8     8.3    -      -       +      -
     42F  PRO*     5.3     2.0    -      -       +      -
     82F  ALA      2.9    20.0    +      -       -      +
     83F  LYS*     3.6    14.4    -      -       +      +
     84F  ASN      3.3     0.2    -      -       -      -
     85F  TYR*     1.3    74.4    -      -       -      +
     87F  VAL*     1.3    60.6    +      -       +      +
     89F  GLN*     3.4    19.8    +      -       +      +
     90F  GLY*     2.9    24.6    +      -       -      -
     23G    T      4.8     9.0    -      -       -      +
     24G    T      3.6    38.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 87 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83F  LYS*     2.9    21.4    +      -       +      +
     84F  ASN*     3.7    10.5    -      -       -      +
     85F  TYR      3.3     0.2    -      -       -      -
     86F  LEU*     1.3    76.0    -      -       +      +
     88F  ALA*     1.3    58.3    +      -       +      +
     90F  GLY*     3.1     3.3    +      -       -      -
     91F  ARG*     3.0    57.6    +      -       -      +
     24G    T      3.9    38.6    -      -       +      +
     25G    C      6.1     3.6    -      -       +      -
     21H    A      5.6     2.5    -      -       -      +
     22H    T      6.2     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 88 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84F  ASN      2.9    17.0    +      -       -      +
     85F  TYR*     3.9    12.8    -      -       +      +
     87F  VAL*     1.3    78.2    -      -       -      +
     89F  GLN*     1.3    57.0    +      -       -      +
     91F  ARG*     3.4    10.2    +      -       -      +
     92F  ARG*     3.2    38.3    +      -       +      +
     21H    A      5.5     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 89 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270D  ARG*     6.1     3.8    -      -       -      +
     42F  PRO*     4.2    19.7    -      -       -      +
     85F  TYR*     2.9    46.0    +      -       +      +
     86F  LEU*     3.8    21.5    -      -       +      +
     88F  ALA*     1.3    73.2    -      -       -      +
     90F  GLY*     1.3    60.8    +      -       -      +
     92F  ARG*     3.1    32.3    +      -       +      +
     93F  PRO      5.0     1.5    -      -       -      +
     95F  SER*     5.5     4.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 90 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  TYR*     5.5     4.0    -      -       -      -
     86F  LEU      2.9    15.3    +      -       -      -
     87F  VAL*     3.1     5.8    +      -       -      -
     89F  GLN*     1.3    74.9    -      -       -      +
     91F  ARG*     1.3    63.2    +      -       -      +
     92F  ARG      3.9     4.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 91 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  TYR*     4.1    21.0    -      -       -      +
     87F  VAL*     3.0    43.4    +      -       -      +
     88F  ALA*     3.7    11.5    -      -       -      +
     89F  GLN      3.2     0.4    -      -       -      -
     90F  GLY*     1.3    80.2    -      -       -      +
     92F  ARG*     1.3    68.5    +      -       -      +
     93F  PRO*     4.0     1.6    -      -       -      +
     24G    T      6.1     1.4    -      -       -      +
     19H    T      5.4     1.8    -      -       -      +
     20H    T      3.5    54.9    +      -       -      +
     21H    A      3.4    50.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 92 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41D  PRO*     5.1     8.5    +      -       -      +
     42D  GLU*     3.4    39.1    +      -       -      +
     43D  THR      5.4     2.7    -      -       -      +
     44D  ILE      5.5     3.8    -      -       -      -
     46D  TYR*     4.6     4.9    -      -       -      -
    270D  ARG*     4.0    25.3    -      -       -      +
     88F  ALA*     3.2    28.3    +      -       +      +
     89F  GLN*     3.1    22.7    +      -       +      +
     90F  GLY      3.9     4.3    -      -       -      +
     91F  ARG*     1.3    85.4    -      -       -      +
     93F  PRO*     1.3    82.4    -      -       +      +
     94F  PRO*     3.9     2.1    -      -       -      +
     21H    A      3.6    29.3    +      -       -      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il