Contacts of the helix formed by residues 342 - 366 (chain C) in PDB entry 2VF7


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 ARG 342 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  ARG      6.0     0.2    +      -       -      -
    338C  ARG*     2.9    26.2    +      -       +      +
    339C  VAL      4.2     1.9    -      -       -      +
    340C  LYS      3.1     2.4    +      -       -      -
    341C  ASN*     1.3    85.3    +      -       -      +
    343C  PRO*     1.4    70.0    -      -       +      +
    344C  GLU*     5.1     2.5    -      -       -      +
    345C  GLN*     3.2    50.5    +      -       +      +
    346C  ALA*     4.0    11.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 343 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339C  VAL      4.1    11.7    -      -       -      +
    340C  LYS      4.1    12.3    -      -       -      +
    341C  ASN      4.3     0.7    -      -       -      -
    342C  ARG*     1.4    89.5    -      -       +      +
    344C  GLU*     1.4    70.0    +      -       +      +
    346C  ALA*     3.8     7.8    +      -       +      +
    347C  ILE*     3.7    19.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 344 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  ARG*     4.5    27.0    +      -       -      +
    342C  ARG*     3.6     3.3    -      -       +      -
    343C  PRO*     1.4    81.6    -      -       +      +
    345C  GLN*     1.3    68.7    +      -       +      +
    347C  ILE*     3.4    13.6    -      -       -      +
    348C  ALA*     3.4    25.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 345 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  ARG      4.0     9.7    +      -       -      +
    127C  ALA*     3.6    31.1    -      -       -      +
    128C  GLY      4.2     9.8    +      -       -      +
    338C  ARG*     5.7     8.0    +      -       -      +
    342C  ARG*     3.2    52.4    +      -       +      +
    343C  PRO      3.5     0.6    -      -       -      -
    344C  GLU*     1.3    82.6    -      -       +      +
    346C  ALA*     1.3    63.0    +      -       +      +
    347C  ILE      3.3     0.2    -      -       -      -
    348C  ALA*     3.4    10.7    -      -       +      +
    349C  LEU*     2.9    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 346 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330C  GLU*     5.8     1.0    -      -       -      +
    332C  GLU*     6.0     0.9    -      -       -      +
    335C  HIS*     5.2    11.6    +      -       +      +
    338C  ARG*     4.4    10.3    -      -       +      +
    339C  VAL*     4.6    18.2    -      -       +      +
    342C  ARG      4.0    14.7    +      -       -      +
    343C  PRO*     3.8     5.1    +      -       +      +
    344C  GLU      3.4     0.6    -      -       -      -
    345C  GLN*     1.3    83.1    -      -       +      +
    347C  ILE*     1.3    60.7    +      -       +      +
    349C  LEU*     3.4    22.4    -      -       +      +
    350C  GLN*     3.5    12.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 347 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330C  GLU*     5.2     9.2    -      -       -      +
    343C  PRO      3.7    13.2    -      -       -      +
    344C  GLU*     3.4    17.0    -      -       -      +
    346C  ALA*     1.3    78.7    -      -       +      +
    348C  ALA*     1.3    63.4    +      -       -      +
    349C  LEU      3.5     0.2    -      -       -      -
    350C  GLN*     3.9     9.0    -      -       +      +
    351C  ARG*     3.5    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 348 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  ARG*     5.2     9.9    -      -       +      +
    127C  ALA*     6.0     1.8    -      -       +      +
    344C  GLU*     3.4    30.7    +      -       -      +
    345C  GLN*     3.1    15.2    +      -       +      +
    347C  ILE*     1.3    78.5    -      -       -      +
    349C  LEU*     1.3    60.9    +      -       -      +
    351C  ARG*     3.3    29.7    -      -       -      +
    352C  MET*     3.4    27.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 349 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123C  LEU*     5.2     4.2    -      -       +      +
    127C  ALA*     3.8    22.4    -      -       +      +
    304C  PHE*     4.0    20.0    -      -       +      -
    327C  TYR*     3.7    40.4    -      -       +      +
    332C  GLU*     4.7    15.5    -      -       -      +
    335C  HIS*     6.2     0.7    -      -       -      +
    338C  ARG*     4.9    11.0    -      -       -      +
    345C  GLN*     2.9    26.8    +      -       +      +
    346C  ALA*     3.4    23.6    -      -       -      +
    348C  ALA*     1.3    74.8    -      -       -      +
    350C  GLN*     1.3    58.3    +      -       -      +
    352C  MET*     3.7     9.3    -      -       -      +
    353C  ALA*     2.7    39.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 350 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327C  TYR      3.7    13.7    -      -       -      +
    328C  ALA*     2.9    27.9    +      -       -      +
    330C  GLU*     3.7    34.2    +      -       +      +
    346C  ALA      3.5    18.4    +      -       -      +
    347C  ILE*     3.9    10.3    -      -       +      +
    349C  LEU*     1.3    80.4    -      -       -      +
    351C  ARG*     1.3    73.7    +      -       -      +
    353C  ALA*     3.7     1.6    -      -       -      +
    354C  ALA*     2.8    41.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 351 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122C  MET*     4.9     7.7    -      -       -      +
    126C  ARG*     4.4    11.5    -      -       -      +
    347C  ILE      3.5     9.7    +      -       -      +
    348C  ALA*     3.3    17.6    +      -       -      +
    350C  GLN*     1.3    88.6    +      -       -      +
    352C  MET*     1.3   107.0    +      -       -      +
    354C  ALA*     3.4     6.7    +      -       -      +
    355C  ASP*     2.7    36.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 352 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119C  LEU      5.4     1.1    -      -       -      +
    122C  MET*     4.1    24.2    -      -       +      +
    123C  LEU*     3.9    38.1    -      -       +      +
    126C  ARG*     3.6    34.8    -      -       +      -
    127C  ALA*     5.2     1.6    -      -       -      -
    348C  ALA*     3.4    17.7    +      -       +      +
    349C  LEU*     3.4     8.0    +      -       -      +
    350C  GLN      3.3     0.6    -      -       -      -
    351C  ARG*     1.3   118.6    -      -       -      +
    353C  ALA*     1.3    64.0    +      -       -      +
    354C  ALA      3.3     0.5    +      -       -      -
    355C  ASP*     3.3    22.0    -      -       -      +
    356C  LEU*     3.4    18.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 353 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123C  LEU*     4.5     8.2    -      -       +      +
    304C  PHE*     5.9     0.2    -      -       +      -
    324C  LEU*     4.0    17.3    -      -       +      +
    327C  TYR*     4.2     9.2    -      -       +      -
    328C  ALA*     3.6    22.4    -      -       +      +
    349C  LEU*     2.7    23.3    +      -       +      +
    350C  GLN      3.9     2.5    -      -       -      +
    352C  MET*     1.3    73.1    -      -       -      +
    354C  ALA*     1.3    61.5    +      -       -      +
    356C  LEU*     3.9     9.0    -      -       -      +
    357C  VAL*     3.2    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 354 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328C  ALA*     3.6    12.3    -      -       +      +
    329C  GLU*     5.8     1.1    -      -       -      +
    350C  GLN*     2.8    34.5    +      -       -      +
    351C  ARG*     3.4     9.0    -      -       -      +
    352C  MET      3.2     0.2    -      -       -      -
    353C  ALA*     1.3    78.2    -      -       -      +
    355C  ASP*     1.3    58.5    +      -       -      +
    357C  VAL*     3.3     3.8    +      -       -      +
    358C  LYS*     3.0    35.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 355 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119C  LEU*     4.6    16.8    -      -       -      +
    351C  ARG*     2.7    23.7    +      -       -      +
    352C  MET*     3.3    10.1    -      -       -      +
    354C  ALA*     1.3    75.1    -      -       -      +
    356C  LEU*     1.3    67.2    +      -       -      +
    358C  LYS*     3.0    12.9    +      -       +      +
    359C  ARG*     2.7    56.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 356 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  LEU*     4.0    38.7    -      -       +      +
    119C  LEU*     3.8    35.9    -      -       +      +
    120C  LEU*     4.6    10.5    -      -       +      +
    123C  LEU*     3.9    23.1    -      -       +      -
    320C  VAL*     6.1     0.9    -      -       +      -
    324C  LEU*     3.7    23.3    -      -       +      -
    352C  MET*     3.4    19.4    +      -       +      +
    353C  ALA      3.9     1.6    -      -       -      +
    355C  ASP*     1.3    81.9    +      -       -      +
    357C  VAL*     1.3    51.2    +      -       -      +
    359C  ARG*     3.2     9.1    +      -       -      +
    360C  LEU*     2.8    44.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 357 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321C  SER*     4.1    17.3    +      -       -      +
    324C  LEU*     3.8    26.7    -      -       +      +
    325C  ARG*     4.0    38.4    -      -       +      +
    328C  ALA*     4.6     6.5    -      -       +      -
    329C  GLU*     5.6     4.5    -      -       -      +
    353C  ALA      3.2    18.7    +      -       -      +
    354C  ALA      3.7     5.2    -      -       -      +
    355C  ASP      3.2     0.2    -      -       -      -
    356C  LEU*     1.3    75.3    -      -       -      +
    358C  LYS*     1.3    62.8    +      -       +      +
    360C  LEU*     3.9     5.7    -      -       -      +
    361C  ASP*     3.0    26.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 358 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    354C  ALA*     3.0    20.7    +      -       -      +
    355C  ASP*     3.0    13.0    +      -       +      +
    357C  VAL*     1.3    78.3    -      -       +      +
    359C  ARG*     1.3    59.6    +      -       +      +
    361C  ASP*     3.2    21.2    -      -       -      +
    362C  VAL*     3.5    14.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 359 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  THR*     4.8    10.7    +      -       -      +
    116C  LEU*     3.7    14.6    -      -       +      -
    119C  LEU*     3.8    34.0    -      -       -      +
    355C  ASP*     2.7    38.7    +      -       -      +
    356C  LEU      3.4     4.9    -      -       -      +
    358C  LYS*     1.3    72.9    -      -       +      +
    360C  LEU*     1.3    63.4    +      -       -      +
    361C  ASP      3.2     0.7    +      -       -      -
    362C  VAL*     3.5     7.6    +      -       -      +
    363C  LEU*     3.2    21.9    +      -       -      +
    395C  TYR*     3.6    69.9    +      -       +      +
    397C  ASN*     6.0     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 360 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  LEU*     3.7    24.2    -      -       +      -
    317C  LEU*     3.4    42.4    -      -       +      +
    320C  VAL*     3.9    19.1    -      -       +      -
    321C  SER*     3.9    34.1    -      -       -      +
    324C  LEU*     4.0    14.1    -      -       +      -
    356C  LEU*     2.8    27.4    +      -       +      +
    357C  VAL*     4.0     5.4    -      -       -      +
    359C  ARG*     1.3    70.2    -      -       -      +
    361C  ASP*     1.3    58.7    +      -       -      +
    362C  VAL      3.4     0.2    -      -       -      -
    363C  LEU*     3.2     6.0    +      -       +      +
    364C  LEU*     2.8    38.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 361 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321C  SER*     5.4     1.5    +      -       -      -
    357C  VAL      3.0    15.4    +      -       -      +
    358C  LYS*     3.2    17.8    -      -       -      +
    360C  LEU*     1.3    74.9    -      -       -      +
    362C  VAL*     1.3    59.0    +      -       -      +
    364C  LEU*     3.0     8.6    +      -       -      +
    365C  HIS*     2.9    43.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 362 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    358C  LYS      3.5    16.6    -      -       -      +
    359C  ARG      3.7     7.0    -      -       -      +
    360C  LEU      3.4     0.4    -      -       -      -
    361C  ASP*     1.3    80.8    +      -       -      +
    363C  LEU*     1.3    60.9    +      -       -      +
    365C  HIS*     3.8     5.5    +      -       -      +
    366C  LEU*     3.3    24.8    +      -       +      +
    391C  ALA*     4.0    11.0    -      -       -      +
    394C  LEU*     3.5    46.2    -      -       +      +
    395C  TYR*     4.2    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 363 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114C  THR*     4.0    12.6    -      -       +      -
    116C  LEU*     4.7     5.2    -      -       +      -
    317C  LEU*     4.0    23.3    -      -       +      -
    359C  ARG      3.2    24.2    -      -       -      +
    360C  LEU*     3.2    12.0    +      -       -      +
    362C  VAL*     1.3    75.6    -      -       -      +
    364C  LEU*     1.3    65.5    +      -       +      +
    366C  LEU*     3.3     7.4    +      -       -      +
    368C  LEU*     3.2    33.0    +      -       +      +
    388C  LEU*     3.5    31.9    -      -       +      -
    391C  ALA*     3.6    22.0    -      -       +      -
    392C  THR      5.3     0.2    -      -       -      +
    395C  TYR*     3.4    29.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 364 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317C  LEU*     3.6    35.9    -      -       +      +
    318C  ALA*     3.8    26.5    -      -       +      -
    321C  SER*     4.5     8.7    -      -       -      +
    360C  LEU*     2.8    33.7    +      -       +      +
    361C  ASP*     3.4     7.2    -      -       -      +
    363C  LEU*     1.3    73.5    -      -       +      +
    365C  HIS*     1.3    56.1    +      -       -      +
    366C  LEU      3.1     4.3    -      -       -      -
    367C  GLY*     3.1    20.8    +      -       -      -
    368C  LEU      4.1     0.5    +      -       -      -
    369C  GLY*     3.9    14.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 365 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361C  ASP*     2.9    24.2    +      -       -      +
    362C  VAL*     4.1     6.5    -      -       -      +
    364C  LEU*     1.3    75.0    -      -       -      +
    366C  LEU*     1.3    58.8    +      -       -      +
    367C  GLY      3.3     0.6    +      -       -      -
    419C  ALA*     3.5    29.4    -      -       +      +
    422C  SER*     5.4     9.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 366 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362C  VAL*     3.3    20.8    +      -       +      +
    363C  LEU*     3.3     7.4    +      -       -      +
    364C  LEU      3.1     1.2    -      -       -      -
    365C  HIS*     1.3    78.4    -      -       -      +
    367C  GLY*     1.3    58.8    +      -       -      +
    368C  LEU*     4.0    13.3    -      -       +      +
    387C  ARG*     4.3    34.0    -      -       +      +
    390C  LEU*     4.9     3.8    -      -       +      -
    391C  ALA*     4.0    19.1    -      -       +      +
    394C  LEU*     4.1    10.3    -      -       +      -
    412C  LEU*     5.5     3.1    -      -       -      +
    416C  ASP*     5.3     5.1    -      -       -      +
    419C  ALA*     4.2    17.8    -      -       -      +
    420C  LEU*     4.3    15.3    -      -       +      -
    423C  ALA*     3.6    33.2    -      -       +      -
----------------------------------------------------------
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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