Contacts of the helix formed by residues 344 - 367 (chain B) in PDB entry 6KJV


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 ASP 344 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340B  MET*     3.8    14.6    -      -       +      +
    341B  CYS*     3.3    31.3    +      -       -      +
    343B  THR*     1.3    90.4    -      -       -      +
    345B  ILE*     1.3    69.0    +      -       +      +
    346B  ALA*     3.3     7.4    -      -       +      +
    347B  PHE*     3.3     3.7    +      -       -      +
    348B  ARG*     3.1    25.4    +      -       -      +
   1091B  ASP*     4.0    10.2    -      -       -      +
   1092B  ALA*     3.5    41.3    +      -       +      +
   1093B  VAL*     6.1     1.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 345 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176B  ARG*     4.1    29.8    -      -       -      +
    254B  LEU*     4.7    22.0    -      -       +      -
    344B  ASP*     1.3    72.1    -      -       +      +
    346B  ALA*     1.3    69.1    +      -       -      +
    348B  ARG*     3.3    27.6    -      -       -      +
    349B  LEU*     2.8    30.3    +      -       +      +
    408B  GLU*     3.8    10.5    -      -       -      +
   1093B  VAL*     4.1    19.1    -      -       +      -
   1155B  GLY      3.9    20.0    -      -       -      +
   1156B  THR*     4.8    11.7    -      -       +      -
   1157B  TRP*     5.9     2.0    -      -       +      +
   2001B  97Y      5.6     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 346 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251B  LEU*     3.9     6.4    -      -       -      +
    254B  LEU*     4.4    25.1    -      -       +      +
    255B  LEU*     3.8    15.7    -      -       +      +
    340B  MET*     3.7    24.7    -      -       +      -
    344B  ASP*     3.3     4.9    -      -       +      +
    345B  ILE*     1.3    83.1    -      -       +      +
    347B  PHE*     1.3    56.9    +      -       -      +
    349B  LEU*     4.7     0.2    -      -       -      -
    350B  ALA*     2.9    30.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 347 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331B  VAL*     3.9    17.9    -      -       +      -
    335B  LEU*     3.8    21.8    -      -       +      -
    340B  MET*     3.8    19.3    -      -       -      -
    341B  CYS      3.8    10.8    -      -       -      +
    342B  LYS*     3.3    55.9    -      -       +      -
    344B  ASP      3.3     5.0    +      -       -      +
    345B  ILE      3.1     0.6    -      -       -      -
    346B  ALA*     1.3    78.0    -      -       -      +
    348B  ARG*     1.3    59.2    +      -       -      +
    350B  ALA*     3.3     6.6    +      -       +      +
    351B  LYS*     2.8    54.6    +      -       +      +
   2001B  97Y      3.7    37.0    -      +       -      -
----------------------------------------------------------
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Residues in contact with ARG 348 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342B  LYS      4.0    13.7    -      -       -      +
    343B  THR*     3.4    25.7    +      -       -      +
    344B  ASP*     3.1    16.2    +      -       -      +
    345B  ILE*     3.3    23.3    -      -       -      +
    347B  PHE*     1.3    75.8    -      -       -      +
    349B  LEU*     1.3    59.4    +      -       -      +
    351B  LYS*     3.0    32.4    +      -       -      +
    352B  SER*     3.0    10.4    +      -       -      -
    407B  ASN*     3.2    45.8    -      -       -      +
    408B  GLU*     2.7    29.5    +      -       -      -
   2001B  97Y      3.4    37.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 349 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176B  ARG*     3.8    25.6    -      -       +      -
    180B  HIS*     4.0    18.4    -      -       +      +
    247B  GLU*     4.2     3.8    -      -       -      +
    250B  TYR*     4.0    17.3    -      -       +      -
    251B  LEU*     4.0    14.6    -      -       +      -
    254B  LEU*     3.9    24.5    -      -       +      -
    345B  ILE*     2.8    17.3    +      -       +      +
    346B  ALA      3.9     2.2    -      -       -      +
    348B  ARG*     1.3    74.8    -      -       -      +
    350B  ALA*     1.3    59.5    +      -       -      +
    352B  SER*     3.2     1.8    +      -       -      +
    353B  THR*     2.9    38.6    +      -       -      +
    402B  TYR*     4.0    24.0    -      -       +      -
   2001B  97Y      4.2    10.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 350 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251B  LEU*     3.7    25.0    -      -       +      +
    255B  LEU*     5.6     0.9    -      -       +      -
    327B  VAL*     4.6     0.7    -      -       +      -
    331B  VAL*     4.3    19.7    -      -       +      -
    346B  ALA      2.9    18.9    +      -       -      +
    347B  PHE*     3.6     6.7    -      -       +      +
    349B  LEU*     1.3    76.2    -      -       -      +
    351B  LYS*     1.3    58.2    +      -       -      +
    354B  LEU*     2.9    50.9    +      -       +      +
   2001B  97Y      5.9     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 351 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342B  LYS      5.3     1.1    -      -       -      -
    347B  PHE*     2.8    43.3    +      -       +      +
    348B  ARG*     3.0    21.6    +      -       -      +
    350B  ALA*     1.3    76.7    -      -       -      +
    352B  SER*     1.3    56.2    +      -       -      +
    355B  THR*     2.9    22.0    +      -       -      -
   2001B  97Y      2.5   112.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 352 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348B  ARG      3.0     5.1    +      -       -      -
    349B  LEU      3.2     3.3    +      -       -      -
    350B  ALA      3.1     0.2    -      -       -      -
    351B  LYS*     1.3    78.8    -      -       -      +
    353B  THR*     1.3    65.5    +      -       -      +
    354B  LEU      3.4     0.2    -      -       -      -
    355B  THR*     3.1     7.3    +      -       -      -
    356B  LEU*     3.0    24.7    +      -       -      +
    401B  LEU*     3.0    30.6    +      -       -      +
    402B  TYR*     3.6    25.4    -      -       -      -
   2001B  97Y      3.1    30.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 353 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244B  LEU*     4.9     4.3    -      -       +      -
    247B  GLU*     3.9    16.5    +      -       +      +
    248B  GLY*     4.3    11.7    -      -       -      +
    251B  LEU*     4.0    20.2    -      -       +      +
    349B  LEU*     2.9    22.4    +      -       -      +
    352B  SER*     1.3    75.5    -      -       -      +
    354B  LEU*     1.3    57.9    +      -       -      +
    356B  LEU*     3.1     4.2    +      -       -      +
    357B  ILE*     3.0    48.2    +      -       +      +
    402B  TYR*     2.5    28.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 354 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251B  LEU*     4.9     3.4    -      -       +      -
    324B  PHE*     3.2    54.5    -      -       +      +
    327B  VAL*     3.9    28.9    -      -       +      -
    328B  ILE*     4.0    10.1    -      -       +      -
    331B  VAL*     5.0     0.7    -      -       +      -
    350B  ALA*     2.9    29.7    +      -       +      +
    351B  LYS      5.2     0.9    -      -       -      +
    353B  THR*     1.3    75.4    -      -       -      +
    355B  THR*     1.3    56.6    +      -       -      +
    357B  ILE*     4.9     4.5    -      -       +      -
    358B  PRO*     3.0    22.5    -      -       -      +
   2001B  97Y      3.9    31.9    -      -       +      +
   2002B  OLC      3.7    13.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 355 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351B  LYS      2.9    18.3    +      -       -      -
    352B  SER      3.1    11.5    +      -       -      -
    353B  THR      3.1     1.0    -      -       -      -
    354B  LEU*     1.3    79.1    -      -       -      +
    356B  LEU*     1.3    65.5    +      -       -      +
    357B  ILE      3.3     0.2    -      -       -      -
    358B  PRO*     3.3    12.0    -      -       -      +
    359B  LEU*     3.2    28.3    +      -       +      +
    401B  LEU*     4.0    20.6    -      -       +      -
   2001B  97Y      2.9    44.6    +      -       +      -
   2002B  OLC      5.2     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 356 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183B  LEU*     5.2     1.6    -      -       +      -
    244B  LEU*     4.2    17.0    -      -       +      -
    352B  SER      3.0    14.5    +      -       -      +
    353B  THR      3.1     5.1    +      -       -      +
    355B  THR*     1.3    77.8    -      -       -      +
    357B  ILE*     1.3    57.2    +      -       -      +
    359B  LEU*     3.4    12.4    -      -       +      +
    360B  LEU*     2.9    53.4    +      -       +      +
    394B  GLN      5.6     0.2    -      -       -      +
    397B  MET*     5.0     1.6    -      -       +      +
    398B  VAL*     4.2    26.5    -      -       +      +
    401B  LEU*     4.0    23.3    -      -       +      -
    402B  TYR*     3.4    45.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 357 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244B  LEU*     4.4    18.8    -      -       +      +
    248B  GLY*     5.1     7.2    -      -       -      -
    251B  LEU*     6.3     0.2    -      -       +      -
    320B  ASN*     3.4    54.1    -      -       +      +
    321B  PHE*     4.4     8.5    -      -       +      +
    323B  ILE*     5.1     3.6    -      -       +      -
    324B  PHE*     4.0    25.1    -      -       +      +
    353B  THR*     3.0    36.8    +      -       +      +
    354B  LEU*     4.9     3.6    -      -       +      -
    356B  LEU*     1.3    76.6    -      -       -      +
    358B  PRO*     1.3    67.4    -      -       +      +
    361B  CYS*     3.0    35.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 358 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321B  PHE*     3.9    16.2    -      -       +      -
    324B  PHE*     3.7    15.7    -      -       +      -
    354B  LEU      3.0    28.3    -      -       -      +
    355B  THR*     3.3     8.1    -      -       -      +
    357B  ILE*     1.3    89.3    -      -       +      +
    359B  LEU*     1.3    58.1    +      -       -      +
    361B  CYS      4.2     0.2    -      -       -      -
    362B  THR*     3.2    27.3    -      -       -      +
   2002B  OLC      3.5    50.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 359 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    355B  THR*     3.2    28.8    +      -       +      +
    356B  LEU*     3.1    27.8    +      -       +      +
    357B  ILE      3.1     1.0    -      -       -      -
    358B  PRO*     1.3    79.6    -      -       -      +
    360B  LEU*     1.3    66.1    +      -       +      +
    362B  THR      4.9     0.4    +      -       -      -
    390B  PHE*     4.9    19.7    -      -       +      -
    394B  GLN*     4.9     5.2    +      -       +      +
    397B  MET*     4.6    23.8    -      -       +      -
   2001B  97Y      6.4     0.2    -      -       +      -
   2002B  OLC      3.9    39.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 360 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183B  LEU*     6.3     0.4    -      -       +      -
    187B  PHE*     3.9    28.5    -      -       +      -
    240B  ASN*     5.4     7.0    -      -       +      +
    241B  TYR*     3.2    32.2    +      -       +      -
    244B  LEU*     4.0    28.7    -      -       +      -
    356B  LEU*     2.9    38.5    +      -       +      +
    359B  LEU*     1.3    94.9    -      -       +      +
    361B  CYS*     1.3    58.0    +      -       -      +
    362B  THR      3.7     0.9    -      -       -      -
    363B  HIS*     5.1     5.8    +      -       -      +
    364B  GLU*     5.3     1.7    +      -       -      +
    394B  GLN*     3.4    32.9    +      -       +      +
    398B  VAL*     5.3     3.1    -      -       +      -
   2002B  OLC      5.8     3.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 361 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241B  TYR*     3.7    16.8    -      -       -      -
    244B  LEU*     4.7     4.5    -      -       -      -
    317B  CYS*     2.0    54.8    -      -       +      -
    320B  ASN*     4.1    15.3    -      -       -      -
    321B  PHE*     3.5    18.6    -      -       +      -
    357B  ILE*     3.0    18.7    +      -       +      +
    360B  LEU*     1.3    76.1    -      -       -      +
    362B  THR*     1.3    66.3    +      -       -      +
    363B  HIS      3.4     2.2    -      -       -      -
    364B  GLU      3.7     3.2    +      -       -      +
    365B  VAL*     3.5    17.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 362 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321B  PHE*     3.9    18.3    -      -       -      -
    358B  PRO*     3.2    23.3    +      -       -      +
    359B  LEU      5.2     0.2    -      -       -      +
    360B  LEU      3.7     0.2    -      -       -      -
    361B  CYS*     1.3    76.7    -      -       -      +
    363B  HIS*     1.3    71.1    +      -       -      +
    365B  VAL*     3.3     3.2    +      -       -      +
    366B  ILE*     3.0    46.3    +      -       +      +
   2002B  OLC      3.5    54.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 363 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360B  LEU      5.2     4.9    -      -       -      +
    361B  CYS      3.4     0.6    -      -       -      +
    362B  THR*     1.3    82.5    -      -       -      +
    364B  GLU*     1.3    71.1    +      -       +      +
    366B  ILE*     3.3     6.0    +      -       -      -
    367B  PHE*     3.2    56.4    +      +       +      +
    384B  LEU*     5.4     7.0    -      -       +      -
    387B  GLU*     3.1    34.3    +      -       +      -
   2002B  OLC      3.6    39.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 364 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241B  TYR*     5.3     7.6    +      -       -      +
    310B  ARG*     3.5    46.7    +      -       -      +
    313B  ILE*     3.9    27.2    -      -       +      +
    314B  LEU*     3.7    20.6    -      -       +      +
    317B  CYS*     4.1    11.9    -      -       -      -
    360B  LEU      5.3     0.6    +      -       -      +
    361B  CYS*     3.7     9.9    +      -       -      +
    362B  THR      3.3     0.8    -      -       -      -
    363B  HIS*     1.3    87.2    -      -       +      +
    365B  VAL*     1.3    59.6    +      -       -      +
    367B  PHE      3.8     3.8    -      -       -      +
    368B  ALA*     3.4    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 365 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314B  LEU*     4.0    15.9    -      -       +      -
    317B  CYS*     4.0    21.3    -      -       +      -
    318B  ILE*     4.8     7.9    -      -       +      +
    321B  PHE*     4.0    18.4    -      -       +      -
    361B  CYS      3.5    14.0    +      -       -      +
    362B  THR*     3.3     6.6    +      -       -      +
    363B  HIS      3.2     0.4    -      -       -      -
    364B  GLU*     1.3    77.2    -      -       -      +
    366B  ILE*     1.3    69.0    +      -       +      +
    368B  ALA*     3.4    15.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 366 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362B  THR*     3.0    41.9    +      -       +      +
    363B  HIS*     3.3     5.4    +      -       -      +
    365B  VAL*     1.3    81.5    -      -       +      +
    367B  PHE*     1.3    89.4    +      -       +      +
    368B  ALA*     3.4     2.6    +      -       -      +
    370B  VAL*     5.7     0.2    -      -       -      +
   2002B  OLC      6.1     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 367 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    306B  TRP*     5.3     0.7    -      -       -      -
    363B  HIS*     3.2    48.6    +      +       +      +
    364B  GLU*     3.8     6.3    -      -       -      +
    366B  ILE*     1.3    95.9    -      -       +      +
    368B  ALA*     1.3    64.4    +      -       -      +
    369B  PHE      3.3     2.1    +      -       -      -
    370B  VAL*     3.6    38.9    +      -       +      +
    384B  LEU*     5.5    13.0    -      -       +      -
----------------------------------------------------------
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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