Contacts of the helix formed by residues 198 - 223 (chain B) in PDB entry 3NMV


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

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

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with GLY 198 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196B  CYS      3.4     5.8    +      -       -      -
    197B  ASP*     1.3    82.5    +      -       -      +
    199B  ASP*     1.3    58.3    +      -       -      +
    200B  THR      3.3     0.2    -      -       -      -
    201B  TRP*     3.5    20.5    -      -       -      +
    202B  GLN*     2.9    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197B  ASP*     3.4    10.8    +      -       -      +
    198B  GLY*     1.3    74.7    -      -       -      +
    200B  THR*     1.3    62.3    +      -       -      +
    202B  GLN*     3.4    10.5    +      -       -      +
    203B  GLU*     3.1    26.9    +      -       -      +
    324B  ARG*     4.9    10.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196B  CYS*     3.8    26.5    -      -       -      -
    197B  ASP*     2.9    24.4    +      -       -      -
    199B  ASP*     1.3    75.8    -      -       -      +
    201B  TRP*     1.3    59.1    +      -       -      +
    203B  GLU*     3.3    23.1    +      -       -      +
    204B  LYS*     2.9    40.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154B  PRO*     4.9    12.7    -      -       +      +
    155B  HIS*     3.1    21.9    +      +       -      -
    193B  PRO*     3.4    44.9    -      -       +      +
    194B  GLU*     4.0     4.7    -      -       -      +
    196B  CYS*     3.9     4.5    -      -       +      +
    198B  GLY*     3.3    27.2    +      -       -      +
    200B  THR*     1.3    77.5    -      -       -      +
    202B  GLN*     1.3    78.7    +      -       +      +
    204B  LYS*     3.5     1.2    +      -       -      +
    205B  TRP*     3.0    32.2    +      +       -      +
    240B  PHE*     3.6    38.1    -      +       +      -
    243B  HIS*     4.1    27.8    -      +       +      -
    245B  PHE*     3.8    28.0    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLN 202 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  GLY      2.9    14.0    +      -       -      +
    199B  ASP*     3.5    13.7    -      -       -      +
    201B  TRP*     1.3    83.2    -      -       +      +
    203B  GLU*     1.3    62.9    +      -       -      +
    205B  TRP*     3.3     3.6    +      -       -      +
    206B  LYS*     3.2    40.5    +      -       -      +
    243B  HIS*     2.9    35.7    +      -       +      +
    245B  PHE*     3.8    21.5    -      -       +      -
    322B  SER*     3.5    18.6    +      -       -      +
    324B  ARG*     5.1     7.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 203 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199B  ASP*     3.1    16.3    +      -       -      +
    200B  THR*     3.3    31.8    +      -       +      +
    202B  GLN*     1.3    76.2    -      -       -      +
    204B  LYS*     1.3    62.1    +      -       +      +
    206B  LYS*     3.4    10.9    +      -       +      +
    207B  LYS*     2.9    32.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 204 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191B  GLU*     2.8    62.7    +      -       +      +
    193B  PRO*     3.9    16.6    -      -       +      -
    196B  CYS*     3.7    31.6    -      -       -      -
    200B  THR*     2.9    27.3    +      -       +      +
    201B  TRP      3.9     3.6    -      -       -      +
    202B  GLN      3.3     0.2    -      -       -      -
    203B  GLU*     1.3    77.7    -      -       +      +
    205B  TRP*     1.3    62.1    +      -       -      +
    207B  LYS*     3.7    10.3    -      -       +      +
    208B  ALA*     2.8    31.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 205 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135B  PHE*     3.8    17.5    -      +       -      -
    136B  LEU*     3.7    30.3    -      -       +      -
    155B  HIS*     3.1    28.1    +      +       -      -
    184B  LEU*     4.3     7.0    -      -       +      -
    188B  ILE*     3.6    30.7    -      -       +      -
    193B  PRO*     3.7     8.7    -      -       +      +
    201B  TRP*     3.0    46.9    +      +       -      +
    202B  GLN      3.3     0.4    +      -       -      +
    204B  LYS*     1.3    76.7    -      -       -      +
    206B  LYS*     1.3    57.9    +      -       -      +
    208B  ALA*     3.4     2.9    +      -       -      +
    209B  LEU*     3.0    40.6    +      -       +      +
    238B  VAL*     3.9    28.7    -      -       +      -
    240B  PHE*     3.6    23.1    -      +       -      -
    245B  PHE*     3.6    25.4    -      +       +      -
----------------------------------------------------------
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Residues in contact with LYS 206 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202B  GLN*     3.2    30.8    +      -       -      +
    203B  GLU*     3.7    12.1    -      -       +      +
    204B  LYS      3.3     0.2    -      -       -      -
    205B  TRP*     1.3    77.2    -      -       -      +
    207B  LYS*     1.3    56.8    +      -       -      +
    209B  LEU*     3.4     3.4    +      -       -      +
    210B  PHE*     2.9    28.6    +      -       -      +
    245B  PHE*     4.2     8.5    -      -       +      -
    320B  VAL*     3.9    37.2    +      -       +      +
    321B  THR*     4.4     3.1    -      -       -      +
    322B  SER*     3.5    34.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 207 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191B  GLU*     3.1    37.9    +      -       -      +
    203B  GLU*     2.9    18.7    +      -       +      +
    204B  LYS*     3.7     9.9    -      -       +      +
    206B  LYS*     1.3    77.7    -      -       -      +
    208B  ALA*     1.3    55.8    +      -       -      +
    210B  PHE*     3.3     8.4    +      -       +      +
    211B  ASN*     3.0    46.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 208 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  LEU*     3.8     7.4    -      -       +      +
    187B  GLU*     3.8    28.5    -      -       +      +
    188B  ILE*     3.6    27.8    -      -       +      -
    191B  GLU*     4.5     6.5    -      -       +      +
    204B  LYS      2.8    21.9    +      -       -      +
    205B  TRP      3.7     3.4    -      -       -      +
    206B  LYS      3.3     0.2    -      -       -      -
    207B  LYS*     1.3    72.4    -      -       -      +
    209B  LEU*     1.3    57.6    +      -       -      +
    211B  ASN*     3.4     1.9    +      -       -      +
    212B  SER*     2.9    31.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 209 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  LEU*     3.7    29.4    -      -       +      -
    205B  TRP*     3.0    25.2    +      -       +      +
    206B  LYS      3.6     4.0    -      -       -      +
    207B  LYS      3.3     0.2    -      -       -      -
    208B  ALA*     1.3    73.7    -      -       -      +
    210B  PHE*     1.3    69.0    +      -       -      +
    212B  SER*     2.7    23.1    +      -       -      +
    213B  PHE*     3.2    13.3    +      -       +      -
    236B  VAL*     3.9    24.7    -      -       +      +
    238B  VAL*     4.2     8.5    -      -       +      -
    245B  PHE*     3.7    35.4    -      -       +      +
    247B  ALA*     4.0    20.0    -      -       +      +
    320B  VAL*     4.1    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 210 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206B  LYS      2.9    14.8    +      -       -      +
    207B  LYS*     3.5    11.9    -      -       +      +
    209B  LEU*     1.3    78.3    -      -       -      +
    211B  ASN*     1.3    76.3    +      -       -      +
    213B  PHE*     3.1    13.2    +      -       -      +
    214B  MET*     3.2    33.4    +      -       +      +
    317B  ASP*     3.5    35.9    -      -       +      -
    318B  PRO*     3.7    39.1    -      -       +      +
    320B  VAL*     4.2     7.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 211 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187B  GLU*     3.7    25.2    +      -       -      +
    191B  GLU*     4.4     4.0    +      -       -      -
    207B  LYS*     3.0    44.3    +      -       -      +
    208B  ALA*     4.0     2.6    -      -       -      +
    210B  PHE*     1.3    89.0    -      -       -      +
    212B  SER*     1.3    60.8    +      -       -      +
    214B  MET*     3.2     8.3    +      -       -      +
    215B  ARG*     2.8    36.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 212 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180B  MET*     2.9    25.8    -      -       -      +
    183B  ALA*     4.0     7.8    -      -       -      +
    184B  LEU*     3.7    30.2    -      -       -      +
    187B  GLU*     4.1     5.3    -      -       -      +
    208B  ALA      2.9    15.5    +      -       -      -
    209B  LEU*     2.7    24.9    +      -       -      +
    211B  ASN*     1.3    76.8    -      -       -      +
    213B  PHE*     1.3    58.5    +      -       -      +
    215B  ARG*     3.3     3.5    +      -       -      +
    216B  VAL*     2.9    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 213 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180B  MET*     3.9    13.7    -      -       +      -
    209B  LEU*     3.3    14.1    -      -       +      -
    210B  PHE      3.1     9.3    +      -       -      +
    212B  SER*     1.3    87.5    +      -       -      +
    214B  MET*     1.3    59.4    +      -       -      +
    216B  VAL*     2.8    24.0    -      -       -      +
    217B  ASP*     2.9    16.5    +      -       -      +
    234B  SER*     3.1    41.7    -      -       -      -
    236B  VAL*     4.0    15.5    -      -       +      -
    247B  ALA*     3.6    34.5    -      -       +      -
    249B  CYS*     4.0    10.3    -      -       -      -
    305B  ILE*     3.7     8.9    -      -       +      +
    316B  PRO*     4.0    11.7    -      -       -      +
    318B  PRO*     3.6    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 214 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  PHE*     3.2    34.7    +      -       +      +
    211B  ASN*     3.2    11.0    +      -       -      +
    213B  PHE*     1.3    75.2    -      -       -      +
    215B  ARG*     1.3    65.4    +      -       +      +
    217B  ASP*     3.4     6.8    +      -       -      +
    218B  SER*     3.1    22.7    +      -       -      -
    316B  PRO*     3.7    22.4    -      -       +      -
    317B  ASP*     3.4    44.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 215 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179B  ARG*     3.5    13.8    -      -       -      +
    183B  ALA*     3.7    12.6    +      -       +      -
    186B  GLU*     2.5    44.8    +      -       -      +
    187B  GLU*     2.9    30.2    +      -       -      +
    190B  LYS*     3.6    13.6    -      -       -      +
    211B  ASN*     2.8    21.7    +      -       +      +
    212B  SER*     3.8     4.9    -      -       -      +
    214B  MET*     1.3    79.8    -      -       +      +
    216B  VAL*     1.3    62.5    +      -       -      +
    218B  SER*     2.9    22.0    +      -       -      +
    219B  GLU*     3.0    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 216 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  TYR*     4.0    23.6    -      -       +      -
    176B  CYS*     4.2    24.0    -      -       -      -
    179B  ARG*     4.8    10.1    -      -       +      -
    180B  MET*     3.7    20.9    -      -       +      -
    183B  ALA*     5.1     2.1    -      -       +      +
    212B  SER      2.9    15.7    +      -       -      +
    213B  PHE*     2.8    28.9    -      -       -      +
    215B  ARG*     1.3    73.2    -      -       -      +
    217B  ASP*     1.3    60.3    +      -       -      +
    219B  GLU*     3.2    21.9    +      -       -      +
    220B  ILE*     3.3    12.5    +      -       -      +
    305B  ILE*     4.0    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 217 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213B  PHE      2.9    18.4    +      -       -      +
    214B  MET*     3.7     6.1    -      -       -      +
    216B  VAL*     1.3    77.2    -      -       -      +
    218B  SER*     1.3    62.0    +      -       -      +
    220B  ILE*     3.3    26.1    +      -       -      +
    221B  GLU*     4.4     2.1    +      -       -      +
    304B  SER      4.4     0.2    -      -       -      +
    305B  ILE*     3.9     4.9    -      -       +      -
    306B  GLY*     2.8    29.5    +      -       -      +
    311B  LYS*     3.1    32.3    +      -       -      -
    316B  PRO*     3.5    33.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 218 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214B  MET      3.1    13.3    +      -       -      -
    215B  ARG*     2.9    22.2    +      -       -      +
    217B  ASP*     1.3    76.4    -      -       -      +
    219B  GLU*     1.3    64.8    +      -       -      +
    220B  ILE      3.4     0.5    +      -       -      -
    221B  GLU*     3.8     5.0    +      -       -      +
    222B  THR*     3.3    25.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  TYR*     2.6    35.1    +      -       +      +
    179B  ARG*     2.7    46.2    +      -       -      +
    183B  ALA*     5.8     0.2    -      -       -      -
    215B  ARG*     3.0    30.1    +      -       -      +
    216B  VAL*     3.2     8.4    +      -       -      +
    218B  SER*     1.3    77.7    -      -       -      +
    220B  ILE*     1.3    59.4    +      -       -      +
    221B  GLU      3.2     0.2    -      -       -      -
    222B  THR*     3.6     7.6    -      -       -      +
    223B  VAL*     2.7    38.8    +      -       +      -
    224B  ALA      2.9     9.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  VAL*     3.8    20.4    -      -       +      -
    175B  TYR*     4.6    11.2    -      -       +      -
    216B  VAL      3.3     8.4    +      -       -      +
    217B  ASP*     3.5    16.4    -      -       -      +
    218B  SER      3.2     1.4    -      -       -      -
    219B  GLU*     1.3    76.4    -      -       -      +
    221B  GLU*     1.3    59.7    -      -       +      +
    224B  ALA*     3.4     9.6    -      -       +      +
    225B  HIS      2.9    21.7    +      -       -      -
    226B  ALA*     2.9    37.6    +      -       +      +
    227B  PRO      5.4     1.1    -      -       -      +
    230B  VAL*     5.1     2.0    -      -       +      +
    305B  ILE*     3.2    35.4    -      -       +      -
    306B  GLY*     3.4    23.6    -      -       -      +
    308B  ARG*     5.7     5.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217B  ASP      4.4     1.7    +      -       -      +
    218B  SER*     3.8     6.1    +      -       -      +
    219B  GLU      3.2     0.2    -      -       -      -
    220B  ILE*     1.3    80.8    -      -       -      +
    222B  THR*     1.3    67.0    +      -       +      +
    223B  VAL      3.4     0.2    -      -       -      -
    225B  HIS*     3.1    33.0    +      -       -      +
    308B  ARG*     3.1    51.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218B  SER*     3.3    19.9    +      -       -      +
    219B  GLU*     3.5     3.4    +      -       -      +
    221B  GLU*     1.3    83.6    -      -       +      +
    223B  VAL*     1.3    73.5    +      -       -      +
    225B  HIS*     3.4    19.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  TYR*     3.7    23.1    -      -       +      +
    219B  GLU*     2.7    34.4    +      -       +      +
    221B  GLU      3.4     0.2    -      -       -      -
    222B  THR*     1.3    89.1    -      -       -      +
    224B  ALA*     1.3    62.6    +      -       -      +
    225B  HIS*     3.3    13.7    -      -       -      -
----------------------------------------------------------
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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