Contacts of the helix formed by residues 441 - 468 (chain B) in PDB entry 5FLZ


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 ILE 441 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434B  GLN*     3.5    22.9    +      -       +      +
    439B  ARG*     3.3    37.4    -      -       +      +
    440B  GLY*     1.3    76.2    -      -       -      +
    442B  SER*     1.4    58.5    +      -       -      +
    443B  THR*     3.8    19.5    -      -       -      +
    444B  ASN*     3.8    22.0    -      -       +      +
    445B  PHE*     3.3    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 442 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393B  PHE      5.4     0.9    +      -       -      -
    394B  ILE*     3.8    34.6    -      -       -      +
    395B  PRO*     4.7     5.9    -      -       -      +
    398B  LEU*     3.8    12.9    -      -       -      +
    440B  GLY      3.1     9.7    +      -       -      -
    441B  ILE*     1.4    67.7    -      -       -      +
    443B  THR*     1.4    63.8    +      -       -      +
    445B  PHE*     3.3    10.0    +      -       -      +
    446B  PHE*     2.7    32.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 443 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  LEU*     6.0     6.7    -      -       +      -
    366A  ILE*     4.8    19.4    -      -       +      +
    398B  LEU*     5.5     2.9    -      -       +      -
    441B  ILE*     3.8    14.1    -      -       -      +
    442B  SER*     1.4    81.0    +      -       -      +
    444B  ASN*     1.4    59.1    +      -       -      +
    446B  PHE*     3.2     6.3    +      -       -      +
    447B  GLU*     2.9    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 444 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433B  TYR*     6.3     1.0    -      -       -      -
    434B  GLN*     4.8    11.1    -      -       -      +
    439B  ARG*     5.7     4.2    -      -       -      +
    441B  ILE*     3.6    31.4    +      -       +      +
    442B  SER      3.3     0.2    -      -       -      -
    443B  THR*     1.4    79.3    +      -       -      +
    445B  PHE*     1.3    58.8    +      -       -      +
    447B  GLU*     3.0     9.7    +      -       -      +
    448B  ILE*     3.0    41.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 445 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    343B  TYR*     5.5     9.0    -      +       -      -
    346B  LEU*     4.0    40.6    -      -       +      -
    350B  LEU*     4.6     3.8    -      -       +      -
    394B  ILE*     5.0     8.7    -      -       +      -
    398B  LEU*     5.7     0.7    -      -       +      -
    402B  ILE*     4.8     6.3    -      -       +      -
    431B  VAL*     3.8    35.9    -      -       +      -
    434B  GLN*     4.5    25.1    -      -       +      +
    441B  ILE      3.3    16.6    +      -       -      +
    442B  SER*     3.3    11.2    +      -       -      +
    444B  ASN*     1.3    76.4    -      -       -      +
    446B  PHE*     1.4    65.2    +      -       +      +
    448B  ILE*     3.0    33.2    -      -       +      +
    449B  ILE*     3.1    37.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 446 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    397B  GLU*     5.7     1.1    -      -       -      -
    398B  LEU*     3.6    37.2    -      -       +      -
    401B  LYS*     3.6    46.7    -      -       +      -
    402B  ILE*     4.5     5.2    -      -       +      -
    405B  ILE*     4.8     3.8    -      -       +      -
    442B  SER      2.7    21.7    +      -       -      +
    443B  THR*     3.5     6.1    -      -       -      +
    445B  PHE*     1.4    71.8    -      -       -      +
    447B  GLU*     1.4    54.1    +      -       -      +
    449B  ILE*     3.1    26.9    +      -       +      -
    450B  ASN*     2.5    66.9    +      -       +      +
    453B  TYR*     6.4     1.1    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLU 447 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    443B  THR      2.9    14.2    +      -       -      +
    444B  ASN*     3.0    14.3    +      -       -      +
    446B  PHE*     1.4    76.2    -      -       -      +
    448B  ILE*     1.4    62.6    +      -       +      +
    450B  ASN*     3.2    15.1    +      -       -      +
    451B  ASP*     2.9    52.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 448 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427B  LYS*     3.7    29.5    -      -       +      +
    430B  HIS*     3.8    37.5    -      -       +      +
    434B  GLN*     5.4     2.7    -      -       +      -
    444B  ASN*     3.0    29.3    +      -       -      +
    445B  PHE*     3.0    37.5    -      -       +      +
    447B  GLU*     1.4    74.7    -      -       +      +
    449B  ILE*     1.3    59.5    -      -       -      +
    451B  ASP*     3.5    11.3    +      -       -      +
    452B  GLN*     3.1    17.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 449 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350B  LEU*     3.6    37.7    -      -       +      -
    402B  ILE*     4.5    12.6    -      -       +      -
    405B  ILE*     3.4    26.9    -      -       +      -
    427B  LYS*     3.7    23.3    -      -       -      +
    445B  PHE*     3.1    41.3    +      -       +      +
    446B  PHE*     3.3    20.2    -      -       +      +
    448B  ILE*     1.3    77.5    -      -       -      +
    450B  ASN*     1.3    56.4    +      -       -      +
    452B  GLN*     3.0    14.3    +      -       -      +
    453B  TYR*     2.8    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 450 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    446B  PHE*     2.5    48.2    +      -       +      +
    447B  GLU*     3.2    21.3    +      -       -      +
    449B  ILE*     1.3    72.5    -      -       -      +
    451B  ASP*     1.4    64.5    +      -       -      +
    453B  TYR*     3.1    13.1    +      -       -      +
    454B  SER*     3.0    25.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 451 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    447B  GLU*     2.9    42.5    +      -       -      +
    448B  ILE*     3.5    13.4    -      -       -      +
    449B  ILE      3.4     0.2    -      -       -      -
    450B  ASN*     1.4    73.8    +      -       -      +
    452B  GLN*     1.4    64.1    +      -       -      +
    454B  SER*     2.7    22.8    +      -       -      -
    455B  GLU*     3.1    24.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 452 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350B  LEU*     4.9     7.5    +      -       -      +
    405B  ILE*     3.4    29.7    -      -       -      +
    409B  TYR*     5.4     1.6    -      -       -      -
    423B  ASN*     6.1     2.2    -      -       -      +
    427B  LYS*     3.9    30.2    -      -       +      -
    448B  ILE      3.1    13.0    +      -       -      +
    449B  ILE*     3.0    22.7    +      -       -      +
    451B  ASP*     1.4    57.7    -      -       -      +
    453B  TYR*     1.4    63.9    +      -       -      +
    455B  GLU*     3.8     8.9    +      -       -      +
    456B  ILE*     3.0    64.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 453 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401B  LYS*     6.4     1.1    -      -       +      -
    404B  MET*     5.3     8.6    -      -       +      +
    405B  ILE*     3.4    50.7    -      -       +      -
    408B  SER*     4.9    10.3    -      -       -      -
    446B  PHE*     6.4     1.1    -      +       -      -
    449B  ILE      2.8     8.5    +      -       -      +
    450B  ASN*     3.1    15.9    +      -       -      +
    452B  GLN*     1.4    80.1    +      -       -      +
    454B  SER*     1.3    60.0    +      -       -      +
    456B  ILE*     3.1    12.4    -      -       +      +
    457B  VAL*     2.9    57.0    +      -       +      +
    719B  LEU      3.8    11.5    +      -       -      -
    720B  ASN*     3.7    28.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 454 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450B  ASN*     3.0    16.3    +      -       -      -
    451B  ASP*     2.7    24.6    +      -       -      -
    453B  TYR*     1.3    78.4    -      -       -      +
    455B  GLU*     1.3    66.5    +      -       -      +
    457B  VAL*     3.2    12.7    -      -       -      +
    458B  ASN*     3.0    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 455 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451B  ASP*     3.1    30.7    +      -       -      +
    452B  GLN*     3.8     7.5    +      -       -      +
    454B  SER*     1.3    84.0    +      -       -      +
    456B  ILE*     1.3    55.7    +      -       -      +
    458B  ASN*     3.4     2.8    +      -       -      +
    459B  HIS*     2.7    58.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 456 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405B  ILE*     5.6     1.3    -      -       +      +
    408B  SER*     6.1     6.5    -      -       -      -
    409B  TYR*     3.3    44.0    -      -       +      +
    412B  LEU*     4.5     9.2    -      -       +      -
    420B  GLN*     5.4    12.3    -      -       +      -
    423B  ASN*     5.7     5.2    -      -       -      +
    452B  GLN*     3.0    40.4    +      -       +      +
    453B  TYR*     3.1    27.6    +      -       +      +
    455B  GLU*     1.3    74.9    -      -       -      +
    457B  VAL*     1.4    58.8    +      -       +      +
    459B  HIS*     3.8     4.6    -      -       -      +
    460B  THR*     2.8    41.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 457 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408B  SER*     6.4     0.7    -      -       -      -
    453B  TYR*     2.9    59.6    +      -       +      +
    454B  SER*     3.2    23.8    -      -       -      +
    456B  ILE*     1.4    73.2    -      -       +      +
    458B  ASN*     1.3    59.2    +      -       -      +
    460B  THR*     3.2     7.2    +      -       -      -
    461B  ASN*     2.8    27.3    +      -       -      +
    719B  LEU*     3.5    38.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 458 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454B  SER      3.0    18.3    +      -       -      +
    455B  GLU*     3.5     6.5    -      -       -      +
    457B  VAL*     1.3    77.1    -      -       +      +
    459B  HIS*     1.3    79.0    +      -       -      +
    461B  ASN*     3.2     7.5    -      -       -      +
    462B  GLN*     3.0    39.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 459 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420B  GLN*     3.8    34.6    +      -       +      +
    455B  GLU*     2.7    53.5    +      -       +      +
    456B  ILE*     4.1     5.0    +      -       -      +
    458B  ASN*     1.3    93.4    +      -       -      +
    460B  THR*     1.3    56.7    +      -       -      +
    462B  GLN*     3.2    13.4    +      -       +      +
    463B  ILE*     3.0    33.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 460 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412B  LEU*     4.1    30.2    -      -       +      +
    456B  ILE*     2.8    27.9    +      -       -      +
    457B  VAL*     3.2     6.7    +      -       -      -
    459B  HIS*     1.3    71.9    -      -       -      +
    461B  ASN*     1.3    64.6    +      -       -      +
    463B  ILE*     3.2    10.7    +      -       -      +
    464B  LEU*     2.9    42.8    +      -       +      +
    719B  LEU*     3.7    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 461 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    457B  VAL      2.8    12.4    +      -       -      +
    458B  ASN*     3.2    15.0    -      -       -      +
    460B  THR*     1.3    76.4    -      -       -      +
    462B  GLN*     1.4    76.6    +      -       -      +
    464B  LEU*     4.6     3.7    -      -       -      +
    465B  ASN*     2.9    50.5    +      -       -      +
    471B  ARG*     5.8     2.9    +      -       -      +
    719B  LEU*     3.7    23.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 462 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    458B  ASN*     3.0    35.5    +      -       -      +
    459B  HIS*     3.2    17.2    +      -       +      +
    461B  ASN*     1.4    72.6    +      -       -      +
    463B  ILE*     1.4    62.8    +      -       +      +
    465B  ASN*     4.8     2.2    -      -       -      +
    466B  GLN*     3.0    65.0    +      -       -      +
    467B  LYS*     3.3     7.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 463 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412B  LEU*     4.9    21.3    -      -       +      -
    416B  CYS*     6.6     0.2    -      -       +      -
    418B  GLU*     5.8     3.8    -      -       -      +
    419B  VAL*     5.5     4.0    -      -       -      -
    420B  GLN*     3.9    32.5    -      -       +      +
    459B  HIS      3.0    22.2    +      -       -      +
    460B  THR*     3.2    12.8    +      -       -      +
    462B  GLN*     1.4    75.4    -      -       +      +
    464B  LEU*     1.3    64.2    +      -       +      +
    467B  LYS*     3.0    44.8    -      -       +      +
    468B  PHE*     3.5    29.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 464 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    411B  PHE*     6.2     5.8    -      -       +      -
    412B  LEU*     5.2     6.1    -      -       +      -
    415B  TYR*     5.2     6.5    -      -       +      -
    460B  THR*     2.9    41.0    +      -       +      +
    461B  ASN*     3.8     4.0    -      -       -      +
    463B  ILE*     1.3    75.0    -      -       +      +
    465B  ASN*     1.4    59.3    -      -       -      +
    468B  PHE*     3.0    54.3    +      -       +      -
    470B  TYR*     3.0    46.9    +      -       +      +
    719B  LEU*     4.4    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 465 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    461B  ASN*     2.9    39.7    +      -       -      +
    462B  GLN*     4.3     1.8    -      -       -      +
    464B  LEU*     1.4    71.9    -      -       +      +
    466B  GLN*     1.3    66.5    +      -       +      +
    469B  HIS*     3.1    25.8    -      -       -      -
    470B  TYR*     3.7    10.1    -      -       +      +
    471B  ARG*     3.3    47.3    -      -       -      +
    472B  ASP      5.1     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 466 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    462B  GLN*     3.0    42.2    +      -       -      +
    465B  ASN*     1.3    82.6    -      -       +      +
    467B  LYS*     1.3    93.7    +      -       +      +
    469B  HIS*     3.7    13.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 467 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    462B  GLN*     3.3    18.6    +      -       -      +
    463B  ILE*     3.0    34.8    +      -       +      +
    466B  GLN*     1.3   110.4    -      -       +      +
    468B  PHE*     1.3    78.5    +      -       +      +
    469B  HIS*     3.5    14.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 468 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415B  TYR*     3.1    53.2    -      +       -      +
    416B  CYS*     5.2    11.0    -      -       +      -
    463B  ILE*     3.5    37.9    -      -       +      -
    464B  LEU*     3.0    26.2    +      -       +      +
    467B  LYS*     1.3    95.5    -      -       +      +
    469B  HIS*     1.4    70.6    +      -       -      +
    470B  TYR*     3.1    14.4    +      +       +      -
    473B  VAL*     4.2     6.6    -      -       -      +
----------------------------------------------------------
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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