Contacts of the strand formed by residues 236 - 258 (chain C) in PDB entry 3ZJX


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 236 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  TYR*     3.4    33.9    -      -       +      -
     23C  LEU*     4.1    19.3    -      -       +      -
    197C  GLN*     3.2     3.9    -      -       -      -
    198C  VAL*     2.7    44.8    +      -       +      +
    221C  LEU*     3.4    34.1    -      -       +      +
    222C  SER*     3.9     4.0    -      -       -      +
    225C  VAL*     3.7    21.3    -      -       +      -
    229C  ASP      4.7     5.8    -      -       -      +
    230C  LEU*     3.6    15.5    -      -       +      -
    231C  ASN*     4.5     0.7    -      -       -      -
    235C  THR*     1.3    78.5    -      -       -      +
    237C  ASN*     1.3    70.3    +      -       -      +
    238C  ILE*     3.6     4.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 237 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  MET*     4.0    14.3    -      -       -      +
     15C  ALA      3.2    25.6    +      -       -      +
     16C  SER*     3.3    10.5    -      -       -      +
     17C  TYR      2.9    21.8    +      -       -      -
    196C  GLY      3.6     4.5    -      -       -      +
    197C  GLN*     3.7    16.1    +      -       -      +
    229C  ASP      5.0     3.0    +      -       -      -
    231C  ASN*     3.2    36.1    +      -       -      +
    236C  ILE*     1.3    79.0    -      -       -      +
    238C  ILE*     1.3    62.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 238 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  SER*     3.5     3.5    +      -       -      -
     17C  TYR*     3.1    17.9    -      -       +      +
     20C  VAL*     4.0    15.3    -      -       +      +
     23C  LEU*     5.7     1.8    -      -       +      -
     64C  ILE*     3.7    21.5    -      -       +      -
    121C  VAL*     3.4    35.4    -      -       +      -
    148C  PHE*     4.7     4.0    -      -       +      -
    194C  LEU      4.3     0.2    -      -       -      -
    195C  VAL*     3.4     7.4    -      -       -      +
    196C  GLY      2.9    44.3    +      -       -      +
    198C  VAL*     3.3    35.0    -      -       +      -
    236C  ILE*     4.3     6.1    -      -       +      +
    237C  ASN*     1.3    79.5    -      -       -      +
    239C  ASN*     1.3    63.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 239 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  SER*     2.9    29.9    +      -       -      +
     17C  TYR      3.0    19.2    +      -       -      +
     18C  ASP*     3.5    29.2    +      -       -      +
    120C  THR      4.6     0.2    -      -       -      +
    121C  VAL*     3.7     7.5    -      -       -      +
    193C  LYS*     5.6     3.8    -      -       +      +
    194C  LEU      3.1     7.6    -      -       -      +
    195C  VAL*     4.4    10.5    -      -       +      -
    238C  ILE*     1.3    77.8    -      -       -      +
    240C  GLY*     1.3    64.3    +      -       -      +
    241C  LYS*     5.0    13.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 240 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119C  HIS*     3.2    15.3    -      -       -      -
    120C  THR      4.3     8.5    -      -       -      -
    121C  VAL*     4.3     4.2    -      -       -      +
    193C  LYS*     3.3     8.7    -      -       -      +
    194C  LEU*     2.7    39.0    +      -       -      +
    239C  ASN*     1.3    76.8    +      -       -      +
    241C  LYS*     1.3    67.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 241 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  ASP*     5.0    13.2    -      -       -      +
    117C  THR*     3.7     7.4    -      -       -      +
    118C  THR*     3.0    28.8    +      -       -      +
    119C  HIS*     2.9    37.5    +      -       +      +
    192C  VAL      3.5     9.9    -      -       -      +
    193C  LYS*     4.5     2.7    -      -       +      +
    194C  LEU*     4.0     6.9    -      -       -      +
    239C  ASN*     5.0    12.1    -      -       -      +
    240C  GLY*     1.3    79.7    -      -       -      +
    242C  GLY*     1.3    61.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 242 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  THR      3.1    13.7    -      -       -      -
    118C  THR*     3.3    10.0    +      -       -      -
    146C  TYR*     4.0     4.3    -      -       -      -
    191C  ASN*     3.4     7.3    -      -       -      +
    192C  VAL*     2.9    41.1    +      -       -      +
    241C  LYS*     1.3    77.6    -      -       -      +
    243C  ASN*     1.3    63.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 243 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  ALA*     3.4     0.2    -      -       -      -
    116C  THR*     3.0    43.3    +      -       -      +
    118C  THR*     3.8    19.5    -      -       +      +
    146C  TYR*     2.6    21.7    +      -       -      -
    190C  GLY      3.3    14.8    -      -       -      +
    191C  ASN*     3.4    13.1    +      -       -      +
    242C  GLY*     1.3    76.1    -      -       -      +
    244C  TYR*     1.3    61.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 244 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  LEU*     4.0     6.5    -      -       +      +
     74C  GLU      5.1     0.2    -      -       -      -
     75C  PRO*     3.3    33.4    -      -       -      +
    113C  VAL*     4.9     2.5    -      -       +      -
    114C  THR*     3.2    12.8    -      -       -      +
    115C  ALA*     4.6     1.1    -      -       +      -
    131C  PHE*     3.5    40.8    -      +       +      -
    133C  VAL*     5.3     4.0    -      -       +      -
    134C  PRO*     3.9    17.0    -      -       +      +
    146C  TYR*     3.4     8.7    -      -       -      +
    188C  VAL*     3.8    16.8    -      -       +      -
    189C  LYS*     3.4     8.6    -      -       -      +
    190C  GLY*     3.0    64.8    +      -       -      +
    191C  ASN      3.8     3.8    +      -       -      -
    192C  VAL*     3.7    21.1    -      -       +      -
    243C  ASN*     1.3    79.2    +      -       -      +
    245C  SER*     1.3    66.4    +      -       -      +
    246C  ALA*     4.8     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 245 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112C  THR*     4.7     1.2    +      -       -      -
    113C  VAL*     3.6     1.5    -      -       -      -
    114C  THR*     3.0    42.0    +      -       -      +
    187C  ASN*     3.2    19.1    +      -       -      -
    188C  VAL      3.3     7.6    -      -       -      -
    189C  LYS*     3.8    15.0    -      -       -      +
    244C  TYR*     1.3    78.7    -      -       -      +
    246C  ALA*     1.3    59.4    +      -       -      +
    247C  VAL*     5.2     3.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 246 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112C  THR      3.1    13.5    -      -       -      +
    113C  VAL*     4.1     3.8    -      -       +      -
    133C  VAL*     4.0    28.0    -      -       +      -
    186C  VAL      3.6     0.2    -      -       -      +
    187C  ASN*     2.9     7.7    +      -       -      -
    188C  VAL*     2.8    52.7    +      -       +      +
    244C  TYR*     5.4     1.3    -      -       +      -
    245C  SER*     1.3    74.1    +      -       -      +
    247C  VAL*     1.3    62.7    +      -       -      +
    248C  MET*     4.4     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 247 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  LEU*     3.7    24.7    -      -       +      -
    110C  THR      4.8     4.5    -      -       -      +
    111C  ASP*     3.2     6.9    -      -       -      -
    112C  THR*     2.9    43.5    +      -       -      +
    185C  LYS*     3.4    35.7    -      -       +      +
    186C  VAL      3.4     3.4    -      -       -      +
    187C  ASN*     4.1     7.9    -      -       -      +
    245C  SER*     5.2     2.7    -      -       -      +
    246C  ALA*     1.3    77.0    -      -       -      +
    248C  MET*     1.3    64.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111C  ASP*     3.5    15.9    -      -       +      +
    112C  THR      4.3     1.8    -      -       -      +
    133C  VAL*     3.9    22.7    -      -       -      -
    135C  PHE      5.1     4.9    -      -       -      +
    136C  ASN*     4.0    23.8    -      -       -      +
    137C  GLU      6.2     0.9    -      -       -      +
    138C  THR*     4.4     5.2    -      -       -      +
    140C  VAL      5.5     1.1    -      -       -      +
    142C  LEU*     3.3    38.1    -      -       +      -
    185C  LYS*     3.3     6.3    -      -       -      -
    186C  VAL*     2.9    45.1    +      -       +      +
    188C  VAL*     4.3    13.9    -      -       +      -
    246C  ALA*     4.4     3.4    -      -       +      -
    247C  VAL*     1.3    88.8    -      -       -      +
    249C  GLY*     1.3    69.3    +      -       -      +
    250C  ASP*     3.6     0.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109C  ASN*     3.6    20.8    -      -       -      +
    111C  ASP*     2.9    14.1    +      -       -      -
    137C  GLU*     6.0     0.7    -      -       -      +
    138C  THR*     3.1    29.8    +      -       -      +
    183C  LEU*     4.5     7.0    -      -       -      -
    184C  LYS      3.7     7.0    -      -       -      -
    185C  LYS*     4.1     6.1    -      -       -      -
    248C  MET*     1.3    75.6    -      -       -      +
    250C  ASP*     1.3    61.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 250 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79C  TYR*     4.1    16.2    +      -       -      -
    137C  GLU*     3.2    32.6    -      -       -      +
    138C  THR*     4.4    10.2    -      -       -      +
    183C  LEU*     4.1     7.8    -      -       -      +
    184C  LYS*     2.8    24.0    +      -       +      +
    186C  VAL*     4.0    26.3    -      -       +      +
    248C  MET*     4.3     0.9    -      -       +      +
    249C  GLY*     1.3    75.9    -      -       -      +
    251C  GLU*     1.3    89.3    +      -       -      +
    252C  LEU      3.7     1.7    +      -       -      -
    285C  TYR*     4.4     6.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 251 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79C  TYR*     5.5     3.0    +      -       -      -
    137C  GLU*     5.4     3.3    -      -       -      +
    183C  LEU*     3.7     1.8    -      -       -      -
    184C  LYS*     2.9    37.4    +      -       +      +
    250C  ASP*     1.3    93.4    -      -       -      +
    252C  LEU*     1.3    61.2    +      -       -      +
    253C  ILE*     3.6    16.6    +      -       +      +
    268C  VAL*     3.7    38.8    -      -       +      +
     42D  TYR*     5.8     3.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85C  VAL*     4.8     4.3    -      -       +      -
    105C  PHE*     4.6     5.4    -      -       +      -
    107C  CYS*     4.8    15.5    -      -       -      -
    162C  ALA*     5.7     0.2    -      -       +      -
    164C  VAL*     3.6    33.7    -      -       +      -
    181C  ALA*     4.9     6.1    -      -       +      -
    182C  TYR      3.7    22.0    -      -       -      +
    183C  LEU*     4.0    12.6    -      -       +      -
    250C  ASP      3.7     3.4    +      -       -      -
    251C  GLU*     1.3    70.5    -      -       -      +
    253C  ILE*     1.3    64.9    +      -       -      +
    254C  VAL*     5.4     1.1    -      -       +      -
    268C  VAL*     3.6     6.1    -      -       -      +
    269C  ILE*     3.0    43.8    +      -       +      +
    285C  TYR*     3.6    40.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 253 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181C  ALA*     3.3     5.0    -      -       -      +
    182C  TYR*     2.8    71.2    +      -       +      +
    184C  LYS*     3.5    35.9    -      -       +      -
    251C  GLU*     4.2    13.5    -      -       +      +
    252C  LEU*     1.3    80.3    -      -       -      +
    254C  VAL*     1.3    73.3    +      -       -      +
    255C  LYS*     4.4     0.9    -      -       +      +
    266C  GLU*     3.3    32.1    -      -       +      +
    267C  TYR      3.5    11.2    -      -       -      +
    268C  VAL*     4.4    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 254 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105C  PHE*     5.4     3.8    -      -       +      -
    167C  GLN*     5.5     0.9    -      -       +      -
    179C  VAL*     3.3    29.4    -      -       +      -
    180C  ILE      3.3     3.4    -      -       -      -
    181C  ALA*     4.1    16.4    -      -       +      -
    252C  LEU*     5.4     1.3    -      -       +      -
    253C  ILE*     1.3    81.6    -      -       -      +
    255C  LYS*     1.3    59.2    +      -       -      +
    256C  VAL*     4.1    12.7    +      -       +      -
    265C  GLN      3.9     0.7    -      -       -      +
    266C  GLU*     3.8     1.2    -      -       -      -
    267C  TYR*     2.9    34.8    +      -       +      +
    269C  ILE*     3.8    29.8    -      -       +      +
    290C  ILE*     4.4    13.2    -      -       +      -
   1296C  BOG      4.3    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 255 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178C  GLU      3.7     1.9    -      -       -      +
    179C  VAL*     3.4     4.0    -      -       -      +
    180C  ILE*     2.9    41.2    +      -       +      +
    182C  TYR*     3.5    37.3    +      -       +      -
    253C  ILE*     4.2     2.4    -      -       +      +
    254C  VAL*     1.3    75.9    -      -       -      +
    256C  VAL*     1.3    62.8    +      -       -      +
    257C  ARG*     4.1     0.6    -      -       -      +
    264C  VAL*     3.7    25.7    -      -       +      +
    265C  GLN      3.4     6.1    -      -       -      +
    266C  GLU*     4.0    26.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 256 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169C  ILE*     4.7     4.9    -      -       +      -
    177C  VAL*     3.9    17.5    -      -       +      -
    178C  GLU      3.6     2.5    -      -       -      -
    179C  VAL*     4.3     8.3    -      -       +      -
    254C  VAL*     4.2     7.4    -      -       +      -
    255C  LYS*     1.3    75.0    -      -       -      +
    257C  ARG*     1.3    60.7    +      -       -      +
    264C  VAL*     3.3     2.6    -      -       -      -
    265C  GLN      2.9    32.7    +      -       -      +
    267C  TYR*     3.9    29.4    -      -       +      -
    290C  ILE*     4.1    16.8    -      -       +      -
    291C  LYS      4.8     0.9    -      -       -      +
    292C  ALA*     3.7    19.1    -      -       +      -
    293C  PRO*     3.3    26.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 257 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177C  VAL*     3.2     9.6    -      -       -      +
    178C  GLU*     2.8    72.8    +      -       +      +
    255C  LYS      4.1     0.9    +      -       -      +
    256C  VAL*     1.3    74.9    -      -       -      +
    258C  ASN*     1.3    68.2    +      -       -      +
    259C  LEU*     3.5    18.6    +      -       +      +
    262C  ASN*     2.8    33.4    +      -       -      +
    263C  ASN      3.3    11.4    -      -       -      +
    264C  VAL*     4.0    20.4    -      -       +      +
    293C  PRO*     4.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 258 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172C  PRO*     4.2     7.3    -      -       -      +
    175C  THR*     3.6    20.1    +      -       -      +
    177C  VAL*     4.0     7.8    -      -       +      +
    257C  ARG*     1.3    70.5    -      -       -      +
    259C  LEU*     1.3    55.9    +      -       -      +
    260C  ASN*     2.6    37.1    +      -       -      +
    261C  THR*     3.0    30.0    +      -       -      +
    262C  ASN*     2.5    36.4    +      -       -      -
    263C  ASN      3.0     7.0    +      -       -      +
    293C  PRO*     2.9    41.1    +      -       +      +
    294C  GLY*     4.3     3.6    -      -       -      -
----------------------------------------------------------
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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