Contacts of the helix formed by residues 690 - 714 (chain D) in PDB entry 6NYY


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with SER 690 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    687C  LYS*     3.8     6.7    -      -       -      +
    691C  GLU*     4.7     3.4    -      -       -      -
    694C  ALA*     3.3    30.1    +      -       -      -
    695C  ARG*     3.8     9.4    -      -       -      -
    698C  ASP*     2.7    16.5    +      -       -      +
    687D  LYS*     5.0     1.7    -      -       -      +
    689D  TYR*     1.3    94.0    -      -       -      +
    691D  GLU*     1.3    63.1    +      -       -      +
    692D  ALA*     3.4     4.1    +      -       -      +
    693D  THR*     2.8    32.2    +      -       -      -
    694D  ALA*     3.5     5.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 691 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    691C  GLU*     4.3    30.7    +      -       +      +
    687D  LYS*     5.5     4.9    -      -       -      +
    690D  SER*     1.3    73.6    -      -       -      +
    692D  ALA*     1.3    55.5    +      -       -      +
    693D  THR      3.1     1.8    -      -       -      -
    694D  ALA*     3.1     7.3    +      -       -      +
    695D  ARG*     2.7    34.8    +      -       +      +
    686E  GLU*     5.2     5.2    -      -       -      +
    690E  SER*     3.3    14.4    -      -       -      -
    691E  GLU*     2.5    47.2    +      -       +      +
    692E  ALA      4.2     1.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 692 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    695C  ARG*     3.7    37.4    -      -       +      +
    699C  ASP*     6.1     0.2    -      -       -      +
    690D  SER*     3.4     2.7    +      -       -      +
    691D  GLU*     1.3    78.3    -      -       -      +
    693D  THR*     1.3    57.7    +      -       -      +
    695D  ARG*     3.9    13.5    -      -       -      +
    696D  LEU*     3.3    21.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 693 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    698C  ASP*     3.3    21.6    +      -       -      +
    699C  ASP*     5.5     0.7    +      -       -      -
    702C  ARG*     3.6    23.8    +      -       -      +
    670D  VAL*     5.1     6.1    -      -       +      -
    675D  PHE*     5.0     7.0    -      -       +      -
    689D  TYR*     3.7    27.1    -      -       +      -
    690D  SER*     2.8    18.0    +      -       -      -
    692D  ALA*     1.3    77.9    -      -       -      +
    694D  ALA*     1.3    60.6    +      -       -      +
    695D  ARG      3.2     0.2    -      -       -      -
    696D  LEU*     2.9     7.6    +      -       +      +
    697D  ILE*     2.8    42.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 694 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    687D  LYS*     5.1    10.8    -      -       +      -
    689D  TYR*     3.7    23.7    -      -       +      +
    690D  SER      3.5     9.7    +      -       -      +
    691D  GLU*     3.1    16.0    +      -       -      +
    693D  THR*     1.3    75.2    -      -       -      +
    695D  ARG*     1.3    63.3    +      -       -      +
    697D  ILE*     4.0     4.4    -      -       -      +
    698D  ASP*     3.3    22.5    +      -       -      +
    690E  SER*     3.3    27.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 695 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    691D  GLU*     2.7    20.1    +      -       +      +
    692D  ALA*     4.0    11.9    -      -       -      +
    693D  THR      3.2     0.2    -      -       -      -
    694D  ALA*     1.3    72.1    -      -       -      +
    696D  LEU*     1.3    62.7    +      -       -      +
    698D  ASP*     3.8     1.1    +      -       -      +
    699D  ASP*     3.0    42.9    +      -       -      +
    690E  SER*     3.8    10.0    -      -       -      +
    692E  ALA*     3.7    32.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 696 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    702C  ARG*     3.9    28.3    -      -       -      +
    669D  LYS*     3.6    40.4    -      -       +      +
    670D  VAL*     4.2    11.9    -      -       +      -
    692D  ALA      3.3    14.3    +      -       -      +
    693D  THR*     2.9    10.1    +      -       +      +
    695D  ARG*     1.3    79.6    -      -       -      +
    697D  ILE*     1.3    61.8    +      -       -      +
    699D  ASP*     3.8     7.9    +      -       +      +
    700D  GLU*     3.3    27.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 697 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    658D  TYR*     4.0    21.3    -      -       +      -
    661D  ILE*     4.3     9.1    -      -       +      +
    662D  VAL*     3.7    31.9    -      -       +      -
    670D  VAL*     4.1    25.1    -      -       +      -
    675D  PHE*     5.4     2.7    -      -       +      -
    689D  TYR*     3.5    42.2    -      -       +      +
    693D  THR*     2.8    27.6    +      -       +      +
    694D  ALA*     3.5     4.9    +      -       -      +
    696D  LEU*     1.3    73.6    -      -       -      +
    698D  ASP*     1.3    60.5    +      -       -      +
    700D  GLU*     2.9    19.1    +      -       -      +
    701D  VAL*     3.0    13.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 698 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    658D  TYR*     2.6    37.8    +      -       -      -
    694D  ALA*     3.3    10.4    +      -       -      +
    695D  ARG      4.5     2.0    -      -       -      +
    697D  ILE*     1.3    74.5    -      -       -      +
    699D  ASP*     1.3    65.1    +      -       -      +
    701D  VAL*     4.0     6.7    -      -       -      +
    702D  ARG*     3.4    30.8    +      -       -      +
    673E  ILE*     5.1     1.4    -      -       -      +
    675E  PHE*     5.1     1.1    -      -       -      -
    688E  PRO      5.1     0.2    -      -       -      +
    689E  TYR*     3.5     6.3    -      -       -      -
    690E  SER*     2.8    38.0    +      -       -      +
    693E  THR*     3.4    20.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 699 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    695D  ARG*     3.0    34.8    +      -       -      +
    696D  LEU*     3.9    10.6    -      -       +      +
    697D  ILE      3.2     0.6    -      -       -      -
    698D  ASP*     1.3    77.8    -      -       -      +
    700D  GLU*     1.3    59.4    +      -       +      +
    702D  ARG*     2.5    40.4    +      -       -      +
    703D  ILE*     3.0    37.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 700 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    661D  ILE*     3.7     7.6    -      -       +      +
    667D  ASN*     3.4    36.3    +      -       -      +
    669D  LYS*     3.3    37.8    +      -       +      +
    670D  VAL*     4.6     1.8    -      -       +      -
    696D  LEU*     3.3    18.4    +      -       +      +
    697D  ILE*     2.9     9.9    +      -       -      +
    699D  ASP*     1.3    76.6    -      -       +      +
    701D  VAL*     1.3    59.6    +      -       -      +
    703D  ILE*     3.5    28.4    +      -       -      +
    704D  LEU*     3.0    27.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 701 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    654D  THR*     5.1     3.1    -      -       +      +
    657D  ALA*     3.8    22.0    -      -       +      +
    658D  TYR*     3.6    37.2    -      -       +      +
    661D  ILE*     3.8    17.9    -      -       +      -
    697D  ILE*     3.0    16.4    +      -       +      +
    698D  ASP*     4.2     7.2    -      -       -      +
    700D  GLU*     1.3    77.0    -      -       -      +
    702D  ARG*     1.3    57.5    +      -       -      +
    704D  LEU*     3.1     4.0    +      -       -      +
    705D  ILE*     2.9    43.6    +      -       +      +
    673E  ILE*     4.1    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 702 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    698D  ASP*     3.4    17.9    +      -       -      +
    699D  ASP*     2.5    39.5    +      -       -      +
    701D  VAL*     1.3    79.3    -      -       -      +
    703D  ILE*     1.3    61.1    +      -       +      +
    705D  ILE*     5.1     1.8    -      -       -      -
    706D  ASN*     2.9    39.0    +      -       -      +
    669E  LYS      3.7    13.3    +      -       -      -
    670E  VAL*     3.3    30.5    +      -       -      +
    671E  GLY*     5.0     1.3    -      -       -      -
    673E  ILE*     3.7    15.2    -      -       +      +
    692E  ALA*     5.8     2.4    +      -       -      +
    693E  THR*     3.7    27.9    +      -       -      +
    696E  LEU*     4.2    23.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 703 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    669D  LYS*     5.9     2.2    -      -       -      +
    699D  ASP*     3.0    22.0    +      -       +      +
    700D  GLU*     3.7    33.0    -      -       -      +
    701D  VAL      3.3     0.2    -      -       -      -
    702D  ARG*     1.3    76.6    -      -       +      +
    704D  LEU*     1.3    62.0    +      -       -      +
    706D  ASN*     4.0     2.3    -      -       -      +
    707D  ASP*     3.0    43.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 704 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    618D  LYS*     6.1     4.9    -      -       -      -
    622D  LEU*     5.3     9.0    -      -       +      +
    625D  MET*     4.3    13.0    -      -       +      -
    657D  ALA*     3.7    34.1    -      -       +      +
    660D  GLN*     3.5    27.4    -      -       +      +
    661D  ILE*     4.4    10.5    -      -       +      -
    700D  GLU      3.0    18.0    +      -       -      +
    701D  VAL      3.1     5.1    +      -       -      +
    703D  ILE*     1.3    76.0    -      -       -      +
    705D  ILE*     1.3    61.1    +      -       +      +
    707D  ASP*     3.2     7.5    +      -       +      +
    708D  ALA*     3.0    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 705 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    625D  MET*     4.2     6.7    -      -       +      -
    629D  LEU*     4.0     8.5    -      -       +      -
    653D  VAL*     3.7    39.9    -      -       +      +
    654D  THR*     4.5     5.8    -      -       -      -
    657D  ALA*     4.3     5.6    -      -       +      -
    701D  VAL*     2.9    25.6    +      -       +      +
    702D  ARG*     4.7     2.2    -      -       -      +
    704D  LEU*     1.3    75.9    -      -       -      +
    706D  ASN*     1.3    53.4    +      -       -      +
    708D  ALA*     2.9     8.3    +      -       -      -
    709D  TYR*     2.6    34.0    +      -       -      +
    672E  GLN*     3.7    31.6    -      -       +      +
    673E  ILE*     3.7    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 706 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    702D  ARG*     2.9    31.1    +      -       -      +
    703D  ILE*     4.6     1.8    -      -       -      +
    705D  ILE*     1.3    77.0    -      -       -      +
    707D  ASP*     1.3    61.0    +      -       -      +
    709D  TYR*     3.9    14.2    -      -       -      +
    710D  LYS*     3.3    38.5    +      -       -      +
    668E  GLU      5.5     2.5    +      -       -      +
    671E  GLY*     4.5    13.3    -      -       -      -
    672E  GLN*     4.1    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 707 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622D  LEU*     5.1     3.7    -      -       +      +
    703D  ILE*     3.0    33.5    +      -       -      +
    704D  LEU*     3.2     7.8    +      -       +      +
    705D  ILE      3.1     0.6    -      -       -      -
    706D  ASN*     1.3    79.9    -      -       -      +
    708D  ALA*     1.3    61.5    +      -       -      +
    709D  TYR      3.3     0.4    -      -       -      -
    710D  LYS*     4.1    10.9    +      -       -      +
    711D  ARG*     3.3    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 708 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622D  LEU*     3.9    19.2    -      -       +      +
    625D  MET*     4.0    18.8    -      -       +      -
    626D  CYS*     3.7    15.0    -      -       -      +
    629D  LEU*     3.8    16.7    -      -       +      +
    704D  LEU      3.0    11.9    +      -       -      +
    705D  ILE      2.9     8.3    +      -       -      +
    707D  ASP*     1.3    75.0    -      -       -      +
    709D  TYR*     1.3    62.2    +      -       -      +
    711D  ARG      3.7     0.3    +      -       -      -
    712D  THR*     2.9    28.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 709 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    629D  LEU*     3.9    16.8    -      -       +      +
    632D  ARG*     4.5    17.5    -      -       +      +
    633D  VAL*     3.8    21.2    -      -       +      +
    636D  GLU*     3.9    29.6    +      -       -      +
    642D  ILE*     5.6     0.3    -      -       -      +
    705D  ILE      2.6    19.7    +      -       -      +
    706D  ASN*     4.0    18.2    -      -       -      +
    707D  ASP      3.3     0.4    -      -       -      -
    708D  ALA*     1.3    71.8    -      -       -      +
    710D  LYS*     1.3    67.3    +      -       +      +
    712D  THR*     3.2     5.7    +      -       -      -
    713D  VAL*     3.0    49.1    +      -       +      +
    672E  GLN*     4.3    34.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 710 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    706D  ASN*     3.3    26.2    +      -       +      +
    707D  ASP*     4.5    10.3    +      -       -      +
    708D  ALA      3.5     0.2    -      -       -      -
    709D  TYR*     1.3    83.3    -      -       +      +
    711D  ARG*     1.3    56.6    +      -       -      +
    713D  VAL*     3.9     7.0    -      -       -      +
    714D  ALA*     3.2    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 711 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585D  LEU*     3.5    22.6    -      -       -      +
    622D  LEU*     3.8    24.3    -      -       -      +
    623D  ASP*     2.9    30.3    +      -       -      -
    626D  CYS*     3.1    28.6    -      -       -      +
    707D  ASP      3.3    17.3    +      -       -      +
    708D  ALA      4.0     5.2    -      -       -      +
    709D  TYR      3.2     0.8    -      -       -      -
    710D  LYS*     1.3    78.9    -      -       -      +
    712D  THR*     1.3    58.0    +      -       -      +
    714D  ALA*     3.8     5.8    +      -       -      +
    715D  LEU*     3.4    21.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 712 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581D  ALA*     4.7     5.6    -      -       +      -
    626D  CYS*     3.2    38.5    +      -       -      +
    629D  LEU*     4.6     2.9    -      -       -      +
    630D  GLY*     3.7    22.0    -      -       -      +
    633D  VAL*     3.8    18.5    -      -       +      +
    708D  ALA      2.9    16.8    +      -       -      -
    709D  TYR*     3.2     5.6    +      -       -      -
    711D  ARG*     1.3    76.3    -      -       -      +
    713D  VAL*     1.3    58.5    +      -       -      +
    714D  ALA      3.2     1.1    -      -       -      -
    715D  LEU*     2.9     8.0    +      -       +      +
    716D  LEU*     2.9    35.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 713 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    633D  VAL*     3.7    23.6    -      -       +      -
    636D  GLU*     5.0     7.6    -      -       -      +
    637D  ILE*     5.0     4.5    -      -       +      -
    709D  TYR*     3.0    47.4    +      -       +      +
    710D  LYS*     4.2     6.7    -      -       -      +
    712D  THR*     1.3    74.4    -      -       -      +
    714D  ALA*     1.3    60.1    +      -       -      +
    715D  LEU      3.3     0.7    +      -       -      -
    716D  LEU      4.2     0.2    -      -       -      -
    717D  THR*     2.9    37.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 714 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    710D  LYS      3.2    19.6    +      -       -      +
    711D  ARG*     4.0     6.7    -      -       -      +
    713D  VAL*     1.3    76.1    -      -       -      +
    715D  LEU*     1.3    59.0    +      -       -      +
    717D  THR*     3.9    11.6    +      -       -      -
    718D  GLU*     4.0    16.3    -      -       -      +
----------------------------------------------------------
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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